diff --git "a/GRAPHDATA/BioGraph_HTML.html" "b/GRAPHDATA/BioGraph_HTML.html"
new file mode 100644--- /dev/null
+++ "b/GRAPHDATA/BioGraph_HTML.html"
@@ -0,0 +1,25136 @@
+<html>
+    <head>
+        <meta charset="utf-8">
+        
+            <script>function neighbourhoodHighlight(params) {
+  // console.log("in nieghbourhoodhighlight");
+  allNodes = nodes.get({ returnType: "Object" });
+  // originalNodes = JSON.parse(JSON.stringify(allNodes));
+  // if something is selected:
+  if (params.nodes.length > 0) {
+    highlightActive = true;
+    var i, j;
+    var selectedNode = params.nodes[0];
+    var degrees = 2;
+
+    // mark all nodes as hard to read.
+    for (let nodeId in allNodes) {
+      // nodeColors[nodeId] = allNodes[nodeId].color;
+      allNodes[nodeId].color = "rgba(200,200,200,0.5)";
+      if (allNodes[nodeId].hiddenLabel === undefined) {
+        allNodes[nodeId].hiddenLabel = allNodes[nodeId].label;
+        allNodes[nodeId].label = undefined;
+      }
+    }
+    var connectedNodes = network.getConnectedNodes(selectedNode);
+    var allConnectedNodes = [];
+
+    // get the second degree nodes
+    for (i = 1; i < degrees; i++) {
+      for (j = 0; j < connectedNodes.length; j++) {
+        allConnectedNodes = allConnectedNodes.concat(
+          network.getConnectedNodes(connectedNodes[j])
+        );
+      }
+    }
+
+    // all second degree nodes get a different color and their label back
+    for (i = 0; i < allConnectedNodes.length; i++) {
+      // allNodes[allConnectedNodes[i]].color = "pink";
+      allNodes[allConnectedNodes[i]].color = "rgba(150,150,150,0.75)";
+      if (allNodes[allConnectedNodes[i]].hiddenLabel !== undefined) {
+        allNodes[allConnectedNodes[i]].label =
+          allNodes[allConnectedNodes[i]].hiddenLabel;
+        allNodes[allConnectedNodes[i]].hiddenLabel = undefined;
+      }
+    }
+
+    // all first degree nodes get their own color and their label back
+    for (i = 0; i < connectedNodes.length; i++) {
+      // allNodes[connectedNodes[i]].color = undefined;
+      allNodes[connectedNodes[i]].color = nodeColors[connectedNodes[i]];
+      if (allNodes[connectedNodes[i]].hiddenLabel !== undefined) {
+        allNodes[connectedNodes[i]].label =
+          allNodes[connectedNodes[i]].hiddenLabel;
+        allNodes[connectedNodes[i]].hiddenLabel = undefined;
+      }
+    }
+
+    // the main node gets its own color and its label back.
+    // allNodes[selectedNode].color = undefined;
+    allNodes[selectedNode].color = nodeColors[selectedNode];
+    if (allNodes[selectedNode].hiddenLabel !== undefined) {
+      allNodes[selectedNode].label = allNodes[selectedNode].hiddenLabel;
+      allNodes[selectedNode].hiddenLabel = undefined;
+    }
+  } else if (highlightActive === true) {
+    // console.log("highlightActive was true");
+    // reset all nodes
+    for (let nodeId in allNodes) {
+      // allNodes[nodeId].color = "purple";
+      allNodes[nodeId].color = nodeColors[nodeId];
+      // delete allNodes[nodeId].color;
+      if (allNodes[nodeId].hiddenLabel !== undefined) {
+        allNodes[nodeId].label = allNodes[nodeId].hiddenLabel;
+        allNodes[nodeId].hiddenLabel = undefined;
+      }
+    }
+    highlightActive = false;
+  }
+
+  // transform the object into an array
+  var updateArray = [];
+  if (params.nodes.length > 0) {
+    for (let nodeId in allNodes) {
+      if (allNodes.hasOwnProperty(nodeId)) {
+        // console.log(allNodes[nodeId]);
+        updateArray.push(allNodes[nodeId]);
+      }
+    }
+    nodes.update(updateArray);
+  } else {
+    // console.log("Nothing was selected");
+    for (let nodeId in allNodes) {
+      if (allNodes.hasOwnProperty(nodeId)) {
+        // console.log(allNodes[nodeId]);
+        // allNodes[nodeId].color = {};
+        updateArray.push(allNodes[nodeId]);
+      }
+    }
+    nodes.update(updateArray);
+  }
+}
+
+function filterHighlight(params) {
+  allNodes = nodes.get({ returnType: "Object" });
+  // if something is selected:
+  if (params.nodes.length > 0) {
+    filterActive = true;
+    let selectedNodes = params.nodes;
+
+    // hiding all nodes and saving the label
+    for (let nodeId in allNodes) {
+      allNodes[nodeId].hidden = true;
+      if (allNodes[nodeId].savedLabel === undefined) {
+        allNodes[nodeId].savedLabel = allNodes[nodeId].label;
+        allNodes[nodeId].label = undefined;
+      }
+    }
+
+    for (let i=0; i < selectedNodes.length; i++) {
+      allNodes[selectedNodes[i]].hidden = false;
+      if (allNodes[selectedNodes[i]].savedLabel !== undefined) {
+        allNodes[selectedNodes[i]].label = allNodes[selectedNodes[i]].savedLabel;
+        allNodes[selectedNodes[i]].savedLabel = undefined;
+      }
+    }
+
+  } else if (filterActive === true) {
+    // reset all nodes
+    for (let nodeId in allNodes) {
+      allNodes[nodeId].hidden = false;
+      if (allNodes[nodeId].savedLabel !== undefined) {
+        allNodes[nodeId].label = allNodes[nodeId].savedLabel;
+        allNodes[nodeId].savedLabel = undefined;
+      }
+    }
+    filterActive = false;
+  }
+
+  // transform the object into an array
+  var updateArray = [];
+  if (params.nodes.length > 0) {
+    for (let nodeId in allNodes) {
+      if (allNodes.hasOwnProperty(nodeId)) {
+        updateArray.push(allNodes[nodeId]);
+      }
+    }
+    nodes.update(updateArray);
+  } else {
+    for (let nodeId in allNodes) {
+      if (allNodes.hasOwnProperty(nodeId)) {
+        updateArray.push(allNodes[nodeId]);
+      }
+    }
+    nodes.update(updateArray);
+  }
+}
+
+function selectNode(nodes) {
+  network.selectNodes(nodes);
+  neighbourhoodHighlight({ nodes: nodes });
+  return nodes;
+}
+
+function selectNodes(nodes) {
+  network.selectNodes(nodes);
+  filterHighlight({nodes: nodes});
+  return nodes;
+}
+
+function highlightFilter(filter) {
+  let selectedNodes = []
+  let selectedProp = filter['property']
+  if (filter['item'] === 'node') {
+    let allNodes = nodes.get({ returnType: "Object" });
+    for (let nodeId in allNodes) {
+      if (allNodes[nodeId][selectedProp] && filter['value'].includes((allNodes[nodeId][selectedProp]).toString())) {
+        selectedNodes.push(nodeId)
+      }
+    }
+  }
+  else if (filter['item'] === 'edge'){
+    let allEdges = edges.get({returnType: 'object'});
+    // check if the selected property exists for selected edge and select the nodes connected to the edge
+    for (let edge in allEdges) {
+      if (allEdges[edge][selectedProp] && filter['value'].includes((allEdges[edge][selectedProp]).toString())) {
+        selectedNodes.push(allEdges[edge]['from'])
+        selectedNodes.push(allEdges[edge]['to'])
+      }
+    }
+  }
+  selectNodes(selectedNodes)
+}</script>
+            <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/vis-network/9.1.2/dist/dist/vis-network.min.css" integrity="sha512-WgxfT5LWjfszlPHXRmBWHkV2eceiWTOBvrKCNbdgDYTHrT2AeLCGbF4sZlZw3UMN3WtL0tGUoIAKsu8mllg/XA==" crossorigin="anonymous" referrerpolicy="no-referrer" />
+            <script src="https://cdnjs.cloudflare.com/ajax/libs/vis-network/9.1.2/dist/vis-network.min.js" integrity="sha512-LnvoEWDFrqGHlHmDD2101OrLcbsfkrzoSpvtSQtxK3RMnRV0eOkhhBN2dXHKRrUU8p2DGRTk35n4O8nWSVe1mQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+            
+            
+            
+            
+            
+            
+                <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/tom-select/2.0.0-rc.4/css/tom-select.min.css" integrity="sha512-43fHB3GLgZfz8QXl1RPQ8O66oIgv3po9cJ5erMt1c4QISq9dYb195T3vr5ImnJPXuVroKcGBPXBFKETW8jrPNQ==" crossorigin="anonymous" referrerpolicy="no-referrer" />
+                <script src="https://cdnjs.cloudflare.com/ajax/libs/tom-select/2.0.0-rc.4/js/tom-select.complete.js" integrity="sha512-jeF9CfnvzDiw9G9xiksVjxR2lib44Gnovvkv+3CgCG6NXCD4gqlA5nDAVW5WjpA+i+/zKsUWV5xNEbW1X/HH0Q==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
+            
+
+        
+<center>
+<h1></h1>
+</center>
+
+<!-- <link rel="stylesheet" href="../node_modules/vis/dist/vis.min.css" type="text/css" />
+<script type="text/javascript" src="../node_modules/vis/dist/vis.js"> </script>-->
+        <link
+          href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta3/dist/css/bootstrap.min.css"
+          rel="stylesheet"
+          integrity="sha384-eOJMYsd53ii+scO/bJGFsiCZc+5NDVN2yr8+0RDqr0Ql0h+rP48ckxlpbzKgwra6"
+          crossorigin="anonymous"
+        />
+        <script
+          src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta3/dist/js/bootstrap.bundle.min.js"
+          integrity="sha384-JEW9xMcG8R+pH31jmWH6WWP0WintQrMb4s7ZOdauHnUtxwoG2vI5DkLtS3qm9Ekf"
+          crossorigin="anonymous"
+        ></script>
+
+
+        <center>
+          <h1></h1>
+        </center>
+        <style type="text/css">
+
+             #mynetwork {
+                 width: 100%;
+                 height: 900px;
+                 background-color: #ffffff;
+                 border: 1px solid lightgray;
+                 position: relative;
+                 float: left;
+             }
+
+             
+             #loadingBar {
+                 position:absolute;
+                 top:0px;
+                 left:0px;
+                 width: 100%;
+                 height: 900px;
+                 background-color:rgba(200,200,200,0.8);
+                 -webkit-transition: all 0.5s ease;
+                 -moz-transition: all 0.5s ease;
+                 -ms-transition: all 0.5s ease;
+                 -o-transition: all 0.5s ease;
+                 transition: all 0.5s ease;
+                 opacity:1;
+             }
+
+             #bar {
+                 position:absolute;
+                 top:0px;
+                 left:0px;
+                 width:20px;
+                 height:20px;
+                 margin:auto auto auto auto;
+                 border-radius:11px;
+                 border:2px solid rgba(30,30,30,0.05);
+                 background: rgb(0, 173, 246); /* Old browsers */
+                 box-shadow: 2px 0px 4px rgba(0,0,0,0.4);
+             }
+
+             #border {
+                 position:absolute;
+                 top:10px;
+                 left:10px;
+                 width:500px;
+                 height:23px;
+                 margin:auto auto auto auto;
+                 box-shadow: 0px 0px 4px rgba(0,0,0,0.2);
+                 border-radius:10px;
+             }
+
+             #text {
+                 position:absolute;
+                 top:8px;
+                 left:530px;
+                 width:30px;
+                 height:50px;
+                 margin:auto auto auto auto;
+                 font-size:22px;
+                 color: #000000;
+             }
+
+             div.outerBorder {
+                 position:relative;
+                 top:400px;
+                 width:600px;
+                 height:44px;
+                 margin:auto auto auto auto;
+                 border:8px solid rgba(0,0,0,0.1);
+                 background: rgb(252,252,252); /* Old browsers */
+                 background: -moz-linear-gradient(top,  rgba(252,252,252,1) 0%, rgba(237,237,237,1) 100%); /* FF3.6+ */
+                 background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(252,252,252,1)), color-stop(100%,rgba(237,237,237,1))); /* Chrome,Safari4+ */
+                 background: -webkit-linear-gradient(top,  rgba(252,252,252,1) 0%,rgba(237,237,237,1) 100%); /* Chrome10+,Safari5.1+ */
+                 background: -o-linear-gradient(top,  rgba(252,252,252,1) 0%,rgba(237,237,237,1) 100%); /* Opera 11.10+ */
+                 background: -ms-linear-gradient(top,  rgba(252,252,252,1) 0%,rgba(237,237,237,1) 100%); /* IE10+ */
+                 background: linear-gradient(to bottom,  rgba(252,252,252,1) 0%,rgba(237,237,237,1) 100%); /* W3C */
+                 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fcfcfc', endColorstr='#ededed',GradientType=0 ); /* IE6-9 */
+                 border-radius:72px;
+                 box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
+             }
+             
+
+             
+             #config {
+                 float: left;
+                 width: 400px;
+                 height: 600px;
+             }
+             
+
+             
+        </style>
+    </head>
+
+
+    <body>
+        <div class="card" style="width: 100%">
+            
+                <div id="select-menu" class="card-header">
+                    <div class="row no-gutters">
+                        <div class="col-10 pb-2">
+                            <select
+                            class="form-select"
+                            aria-label="Default select example"
+                            onchange="selectNode([value]);"
+                            id="select-node"
+                            placeholder="Select node..."
+                            >
+                                <option selected>Select a Node by ID</option>
+                                
+                                    <option value="abg group">abg group</option>
+                                
+                                    <option value="area of neovascularization">area of neovascularization</option>
+                                
+                                    <option value="osteoclasts">osteoclasts</option>
+                                
+                                    <option value="biological tissues">biological tissues</option>
+                                
+                                    <option value="oct">oct</option>
+                                
+                                    <option value="staggered composite architectures">staggered composite architectures</option>
+                                
+                                    <option value="porous structures">porous structures</option>
+                                
+                                    <option value="elastic properties">elastic properties</option>
+                                
+                                    <option value="poroelastic analysis">poroelastic analysis</option>
+                                
+                                    <option value="small-angle scattering tensor tomography (satt)">small-angle scattering tensor tomography (satt)</option>
+                                
+                                    <option value="monolithic materials">monolithic materials</option>
+                                
+                                    <option value="failure">failure</option>
+                                
+                                    <option value="flaw tolerance">flaw tolerance</option>
+                                
+                                    <option value="hierarchical structure">hierarchical structure</option>
+                                
+                                    <option value="increasing resistance to fracture">increasing resistance to fracture</option>
+                                
+                                    <option value="molecular rupture">molecular rupture</option>
+                                
+                                    <option value="protein unfolding">protein unfolding</option>
+                                
+                                    <option value="sliding of biomolecular assemblies">sliding of biomolecular assemblies</option>
+                                
+                                    <option value="complex hierarchical structures">complex hierarchical structures</option>
+                                
+                                    <option value="nanoscale materials">nanoscale materials</option>
+                                
+                                    <option value="lamellae">lamellae</option>
+                                
+                                    <option value="biopsies">biopsies</option>
+                                
+                                    <option value="clinical applications">clinical applications</option>
+                                
+                                    <option value="bone regeneration">bone regeneration</option>
+                                
+                                    <option value="angiogenesis">angiogenesis</option>
+                                
+                                    <option value="biocompatible scaffolds">biocompatible scaffolds</option>
+                                
+                                    <option value="cellular ingress">cellular ingress</option>
+                                
+                                    <option value="mechanically stable scaffolds">mechanically stable scaffolds</option>
+                                
+                                    <option value="nutrient transport">nutrient transport</option>
+                                
+                                    <option value="additive manufacturing (am)">additive manufacturing (am)</option>
+                                
+                                    <option value="bioactive glass scaffold (bgs)">bioactive glass scaffold (bgs)</option>
+                                
+                                    <option value="biomaterials">biomaterials</option>
+                                
+                                    <option value="regenerative medicine">regenerative medicine</option>
+                                
+                                    <option value="tissue engineering">tissue engineering</option>
+                                
+                                    <option value="smaller pores">smaller pores</option>
+                                
+                                    <option value="autologous bone graft">autologous bone graft</option>
+                                
+                                    <option value="cranial defect region">cranial defect region</option>
+                                
+                                    <option value="scaffold group">scaffold group</option>
+                                
+                                    <option value="scaffold implantation">scaffold implantation</option>
+                                
+                                    <option value="bi-layer scaffold">bi-layer scaffold</option>
+                                
+                                    <option value="ha coatings">ha coatings</option>
+                                
+                                    <option value="polycarbonate scaffolds">polycarbonate scaffolds</option>
+                                
+                                    <option value="calcium ions">calcium ions</option>
+                                
+                                    <option value="neovascularization">neovascularization</option>
+                                
+                                    <option value="adhesive activity (epithelial-like cells)">adhesive activity (epithelial-like cells)</option>
+                                
+                                    <option value="adhesive activity (fibroblasts)">adhesive activity (fibroblasts)</option>
+                                
+                                    <option value="ionic release behavior">ionic release behavior</option>
+                                
+                                    <option value="glycoproteins">glycoproteins</option>
+                                
+                                    <option value="sa">sa</option>
+                                
+                                    <option value="titanate nanowire matrix">titanate nanowire matrix</option>
+                                
+                                    <option value="capillaries">capillaries</option>
+                                
+                                    <option value="vascularization">vascularization</option>
+                                
+                                    <option value="collagen scaffolds">collagen scaffolds</option>
+                                
+                                    <option value="modified collagen scaffold">modified collagen scaffold</option>
+                                
+                                    <option value="growth factor secretion">growth factor secretion</option>
+                                
+                                    <option value="local active ions">local active ions</option>
+                                
+                                    <option value="octa">octa</option>
+                                
+                                    <option value="omag">omag</option>
+                                
+                                    <option value="red blood cells">red blood cells</option>
+                                
+                                    <option value="blood vessels">blood vessels</option>
+                                
+                                    <option value="microangiography images">microangiography images</option>
+                                
+                                    <option value="phosphoric acid">phosphoric acid</option>
+                                
+                                    <option value="core-sheath fibers">core-sheath fibers</option>
+                                
+                                    <option value="scaffold porosity">scaffold porosity</option>
+                                
+                                    <option value="sf-c group">sf-c group</option>
+                                
+                                    <option value="area of new vessels">area of new vessels</option>
+                                
+                                    <option value="sf-mc group">sf-mc group</option>
+                                
+                                    <option value="cnts">cnts</option>
+                                
+                                    <option value="power settings">power settings</option>
+                                
+                                    <option value="surgical procedures">surgical procedures</option>
+                                
+                                    <option value="both groups">both groups</option>
+                                
+                                    <option value="printed scaffolds">printed scaffolds</option>
+                                
+                                    <option value="lotus root-like scaffolds">lotus root-like scaffolds</option>
+                                
+                                    <option value="copolymer">copolymer</option>
+                                
+                                    <option value="cell behavior">cell behavior</option>
+                                
+                                    <option value="cell proliferation">cell proliferation</option>
+                                
+                                    <option value="cell survival">cell survival</option>
+                                
+                                    <option value="cytotoxicity">cytotoxicity</option>
+                                
+                                    <option value="cytotoxicity tests">cytotoxicity tests</option>
+                                
+                                    <option value="fiber thickness">fiber thickness</option>
+                                
+                                    <option value="produced fibrin-based hydrogels">produced fibrin-based hydrogels</option>
+                                
+                                    <option value="fibrinolytic processes">fibrinolytic processes</option>
+                                
+                                    <option value="hydrogel degradation">hydrogel degradation</option>
+                                
+                                    <option value="natural spider silk mimics">natural spider silk mimics</option>
+                                
+                                    <option value="ecm similarity">ecm similarity</option>
+                                
+                                    <option value="reactive amphiphilic copolymers">reactive amphiphilic copolymers</option>
+                                
+                                    <option value="nanocellulose crystals">nanocellulose crystals</option>
+                                
+                                    <option value="confocal microscopy">confocal microscopy</option>
+                                
+                                    <option value="compressed collagen gels">compressed collagen gels</option>
+                                
+                                    <option value="tissue substitute">tissue substitute</option>
+                                
+                                    <option value="biological inputs">biological inputs</option>
+                                
+                                    <option value="mechanical cues">mechanical cues</option>
+                                
+                                    <option value="aligned electrospun fibers">aligned electrospun fibers</option>
+                                
+                                    <option value="soft electrospun fibers">soft electrospun fibers</option>
+                                
+                                    <option value="uvb radiation">uvb radiation</option>
+                                
+                                    <option value="porous p materials">porous p materials</option>
+                                
+                                    <option value="biological wound healing">biological wound healing</option>
+                                
+                                    <option value="defects">defects</option>
+                                
+                                    <option value="biological properties">biological properties</option>
+                                
+                                    <option value="porous architecture">porous architecture</option>
+                                
+                                    <option value="hydroxyapatite (ha) scaffolds with microporosity features created using graphite (ha-g scaffolds)">hydroxyapatite (ha) scaffolds with microporosity features created using graphite (ha-g scaffolds)</option>
+                                
+                                    <option value="multiform tio2 nanocoating">multiform tio2 nanocoating</option>
+                                
+                                    <option value="gelatin">gelatin</option>
+                                
+                                    <option value="aft-pbs">aft-pbs</option>
+                                
+                                    <option value="quantum dots">quantum dots</option>
+                                
+                                    <option value="hydrogels">hydrogels</option>
+                                
+                                    <option value="biomedical materials">biomedical materials</option>
+                                
+                                    <option value="tissue engineering proteins">tissue engineering proteins</option>
+                                
+                                    <option value="wound healing polymers">wound healing polymers</option>
+                                
+                                    <option value="cell-seeded scaffolds">cell-seeded scaffolds</option>
+                                
+                                    <option value="unseeded scaffolds">unseeded scaffolds</option>
+                                
+                                    <option value="biomimetic materials">biomimetic materials</option>
+                                
+                                    <option value="celltiter 96(r)">celltiter 96(r)</option>
+                                
+                                    <option value="mts colorimetric reagent">mts colorimetric reagent</option>
+                                
+                                    <option value="eadf4(c16) hydrogels">eadf4(c16) hydrogels</option>
+                                
+                                    <option value="pcl fibers">pcl fibers</option>
+                                
+                                    <option value="fibronectin">fibronectin</option>
+                                
+                                    <option value="surface topography">surface topography</option>
+                                
+                                    <option value="fibrin hydrogels">fibrin hydrogels</option>
+                                
+                                    <option value="pcl-collagen core-shell nanomaterials">pcl-collagen core-shell nanomaterials</option>
+                                
+                                    <option value="concurrent hybrid printing">concurrent hybrid printing</option>
+                                
+                                    <option value="gel phase">gel phase</option>
+                                
+                                    <option value="3% w/v eadf4(c16) hydrogels">3% w/v eadf4(c16) hydrogels</option>
+                                
+                                    <option value="limitation">limitation</option>
+                                
+                                    <option value="collagen">collagen</option>
+                                
+                                    <option value="collagen-based gels">collagen-based gels</option>
+                                
+                                    <option value="swf extracts">swf extracts</option>
+                                
+                                    <option value="cytotox onet(tm)">cytotox onet(tm)</option>
+                                
+                                    <option value="ldh">ldh</option>
+                                
+                                    <option value="scaffolds">scaffolds</option>
+                                
+                                    <option value="chitin-calcium carbonate composite microstructure">chitin-calcium carbonate composite microstructure</option>
+                                
+                                    <option value="fluorapatite/chitin composites">fluorapatite/chitin composites</option>
+                                
+                                    <option value="chiral structures">chiral structures</option>
+                                
+                                    <option value="honeycomb substructure">honeycomb substructure</option>
+                                
+                                    <option value="chitin">chitin</option>
+                                
+                                    <option value="shells">shells</option>
+                                
+                                    <option value="chitosan">chitosan</option>
+                                
+                                    <option value="nanochitin">nanochitin</option>
+                                
+                                    <option value="exceptional mechanical properties">exceptional mechanical properties</option>
+                                
+                                    <option value="second most abundant polymer on earth">second most abundant polymer on earth</option>
+                                
+                                    <option value="arthropods">arthropods</option>
+                                
+                                    <option value="biodegradable polymer scaffolds">biodegradable polymer scaffolds</option>
+                                
+                                    <option value="amorphous_regions">amorphous_regions</option>
+                                
+                                    <option value="moisture content">moisture content</option>
+                                
+                                    <option value="orientation_of_microfibrils">orientation_of_microfibrils</option>
+                                
+                                    <option value="temperature">temperature</option>
+                                
+                                    <option value="low_solubility">low_solubility</option>
+                                
+                                    <option value="biopolymers">biopolymers</option>
+                                
+                                    <option value="cationic moieties">cationic moieties</option>
+                                
+                                    <option value="nitrogen">nitrogen</option>
+                                
+                                    <option value="bottom-up formation">bottom-up formation</option>
+                                
+                                    <option value="lack of interfaces">lack of interfaces</option>
+                                
+                                    <option value="self-assembly">self-assembly</option>
+                                
+                                    <option value="chitin chains">chitin chains</option>
+                                
+                                    <option value="common synthetic polymers">common synthetic polymers</option>
+                                
+                                    <option value="amorphous region">amorphous region</option>
+                                
+                                    <option value="crystallites">crystallites</option>
+                                
+                                    <option value="fracturetoughness">fracturetoughness</option>
+                                
+                                    <option value="intracircularcanalsystems">intracircularcanalsystems</option>
+                                
+                                    <option value="loadbearingpaths">loadbearingpaths</option>
+                                
+                                    <option value="proteinmolecules">proteinmolecules</option>
+                                
+                                    <option value="strength">strength</option>
+                                
+                                    <option value="toughness">toughness</option>
+                                
+                                    <option value="directionality">directionality</option>
+                                
+                                    <option value="elastic moduli">elastic moduli</option>
+                                
+                                    <option value="acetylation">acetylation</option>
+                                
+                                    <option value="nanofibrils">nanofibrils</option>
+                                
+                                    <option value="protective role">protective role</option>
+                                
+                                    <option value="stability">stability</option>
+                                
+                                    <option value="silk fibroin">silk fibroin</option>
+                                
+                                    <option value="soy protein isolate">soy protein isolate</option>
+                                
+                                    <option value="polylacophora and patellogastropoda teeth">polylacophora and patellogastropoda teeth</option>
+                                
+                                    <option value="cuticle">cuticle</option>
+                                
+                                    <option value="caco3">caco3</option>
+                                
+                                    <option value="cartilage tissue engineering">cartilage tissue engineering</option>
+                                
+                                    <option value="consistent characteristics">consistent characteristics</option>
+                                
+                                    <option value="non-seasonal source of raw material">non-seasonal source of raw material</option>
+                                
+                                    <option value="nsc">nsc</option>
+                                
+                                    <option value="extraordinary stiffness">extraordinary stiffness</option>
+                                
+                                    <option value="fracture toughness">fracture toughness</option>
+                                
+                                    <option value="stinger">stinger</option>
+                                
+                                    <option value="graphene oxide (go)">graphene oxide (go)</option>
+                                
+                                    <option value="nacre-like structure">nacre-like structure</option>
+                                
+                                    <option value="ldhs">ldhs</option>
+                                
+                                    <option value="single-wall cnts or glucose oxidase">single-wall cnts or glucose oxidase</option>
+                                
+                                    <option value="biocompatible composite films">biocompatible composite films</option>
+                                
+                                    <option value="brick">brick</option>
+                                
+                                    <option value="mortar">mortar</option>
+                                
+                                    <option value="mechanical properties">mechanical properties</option>
+                                
+                                    <option value="pva">pva</option>
+                                
+                                    <option value="water solubility">water solubility</option>
+                                
+                                    <option value="nsc/co-zn composite films inspired by nacre">nsc/co-zn composite films inspired by nacre</option>
+                                
+                                    <option value="fluoride ions">fluoride ions</option>
+                                
+                                    <option value="apatite crystals">apatite crystals</option>
+                                
+                                    <option value="hcl">hcl</option>
+                                
+                                    <option value="decalcification">decalcification</option>
+                                
+                                    <option value="procedure a">procedure a</option>
+                                
+                                    <option value="procedure b">procedure b</option>
+                                
+                                    <option value="acid">acid</option>
+                                
+                                    <option value="hydroxyapatite/chitin composites">hydroxyapatite/chitin composites</option>
+                                
+                                    <option value="naoh">naoh</option>
+                                
+                                    <option value="deproteinization">deproteinization</option>
+                                
+                                    <option value="initial protein structure">initial protein structure</option>
+                                
+                                    <option value="alkaline solution">alkaline solution</option>
+                                
+                                    <option value="snow crab shells">snow crab shells</option>
+                                
+                                    <option value="bioceramics">bioceramics</option>
+                                
+                                    <option value="fluorapatite/chitin">fluorapatite/chitin</option>
+                                
+                                    <option value="suture structures">suture structures</option>
+                                
+                                    <option value="keratin structures">keratin structures</option>
+                                
+                                    <option value="conch shell">conch shell</option>
+                                
+                                    <option value="crossed-lamellae">crossed-lamellae</option>
+                                
+                                    <option value="synthetic surfaces">synthetic surfaces</option>
+                                
+                                    <option value="haliotis pulcherina">haliotis pulcherina</option>
+                                
+                                    <option value="biominerals">biominerals</option>
+                                
+                                    <option value="collagen fibrils">collagen fibrils</option>
+                                
+                                    <option value="2d diagram">2d diagram</option>
+                                
+                                    <option value="a">a</option>
+                                
+                                    <option value="orientation">orientation</option>
+                                
+                                    <option value="preferred direction">preferred direction</option>
+                                
+                                    <option value="b">b</option>
+                                
+                                    <option value="c">c</option>
+                                
+                                    <option value="i(002)">i(002)</option>
+                                
+                                    <option value="i(310)">i(310)</option>
+                                
+                                    <option value="quantitative determination">quantitative determination</option>
+                                
+                                    <option value="μ">μ</option>
+                                
+                                    <option value="chitin extraction">chitin extraction</option>
+                                
+                                    <option value="biocompatibility">biocompatibility</option>
+                                
+                                    <option value="bone">bone</option>
+                                
+                                    <option value="catisio3">catisio3</option>
+                                
+                                    <option value="flexural strength">flexural strength</option>
+                                
+                                    <option value="osteogenesis">osteogenesis</option>
+                                
+                                    <option value="bone formation">bone formation</option>
+                                
+                                    <option value="intrafibrillar mineralization">intrafibrillar mineralization</option>
+                                
+                                    <option value="strengthening mechanisms">strengthening mechanisms</option>
+                                
+                                    <option value="cell-laden hydrogel">cell-laden hydrogel</option>
+                                
+                                    <option value="cartilage zone">cartilage zone</option>
+                                
+                                    <option value="microchannel regions">microchannel regions</option>
+                                
+                                    <option value="thermoplastic material">thermoplastic material</option>
+                                
+                                    <option value="gradient scaffolds">gradient scaffolds</option>
+                                
+                                    <option value="gradient configurations">gradient configurations</option>
+                                
+                                    <option value="decreased compressive stiffness">decreased compressive stiffness</option>
+                                
+                                    <option value="increased interfacial areas between different zones">increased interfacial areas between different zones</option>
+                                
+                                    <option value="mechanical absorption properties similar to native tissue">mechanical absorption properties similar to native tissue</option>
+                                
+                                    <option value="linear response">linear response</option>
+                                
+                                    <option value="sudden 'incognito' failure zones">sudden 'incognito' failure zones</option>
+                                
+                                    <option value="twice the stress level">twice the stress level</option>
+                                
+                                    <option value="biomimetic oc scaffolds">biomimetic oc scaffolds</option>
+                                
+                                    <option value="multi-zonal">multi-zonal</option>
+                                
+                                    <option value="oc function">oc function</option>
+                                
+                                    <option value="oc defects">oc defects</option>
+                                
+                                    <option value="osteochondral defects">osteochondral defects</option>
+                                
+                                    <option value="pla">pla</option>
+                                
+                                    <option value="oc scaffolds">oc scaffolds</option>
+                                
+                                    <option value="modulus">modulus</option>
+                                
+                                    <option value="slow-delivery carriers">slow-delivery carriers</option>
+                                
+                                    <option value="single biomaterial">single biomaterial</option>
+                                
+                                    <option value="bending-to-axial stiffness ratio">bending-to-axial stiffness ratio</option>
+                                
+                                    <option value="poly lactic acid (pla)">poly lactic acid (pla)</option>
+                                
+                                    <option value="scaffold design">scaffold design</option>
+                                
+                                    <option value="further research">further research</option>
+                                
+                                    <option value="3d printing">3d printing</option>
+                                
+                                    <option value="development of functional tissues">development of functional tissues</option>
+                                
+                                    <option value="scanning electron microscopy">scanning electron microscopy</option>
+                                
+                                    <option value="silk-based microgels">silk-based microgels</option>
+                                
+                                    <option value="cnc/pva compositions">cnc/pva compositions</option>
+                                
+                                    <option value="investigating the growth mode of abalone sea shells">investigating the growth mode of abalone sea shells</option>
+                                
+                                    <option value="beam diameter">beam diameter</option>
+                                
+                                    <option value="cpl">cpl</option>
+                                
+                                    <option value="exposure time">exposure time</option>
+                                
+                                    <option value="goniometric stage">goniometric stage</option>
+                                
+                                    <option value="sample-detector distance">sample-detector distance</option>
+                                
+                                    <option value="leica dm rxa2 microscope">leica dm rxa2 microscope</option>
+                                
+                                    <option value="saxs/waxs">saxs/waxs</option>
+                                
+                                    <option value="specimen">specimen</option>
+                                
+                                    <option value="cytoskeletal structure">cytoskeletal structure</option>
+                                
+                                    <option value="studying piezoelectricity">studying piezoelectricity</option>
+                                
+                                    <option value="microstructure">microstructure</option>
+                                
+                                    <option value="apatite layer">apatite layer</option>
+                                
+                                    <option value="nanofibers">nanofibers</option>
+                                
+                                    <option value="hair">hair</option>
+                                
+                                    <option value="ce-lamin fibers">ce-lamin fibers</option>
+                                
+                                    <option value="experimental techniques">experimental techniques</option>
+                                
+                                    <option value="nanowire growth">nanowire growth</option>
+                                
+                                    <option value="experimental methods">experimental methods</option>
+                                
+                                    <option value="cap-bamboo-10">cap-bamboo-10</option>
+                                
+                                    <option value="cap-bamboo-8">cap-bamboo-8</option>
+                                
+                                    <option value="cap-bamboo-9">cap-bamboo-9</option>
+                                
+                                    <option value="pores filled with apatite">pores filled with apatite</option>
+                                
+                                    <option value="micro/nanostructures">micro/nanostructures</option>
+                                
+                                    <option value="columnar growth">columnar growth</option>
+                                
+                                    <option value="first layer">first layer</option>
+                                
+                                    <option value="inter-columnar spacing">inter-columnar spacing</option>
+                                
+                                    <option value="mo interlayer">mo interlayer</option>
+                                
+                                    <option value="second layer">second layer</option>
+                                
+                                    <option value="statistical analysis">statistical analysis</option>
+                                
+                                    <option value="multiscale fibrous networks">multiscale fibrous networks</option>
+                                
+                                    <option value="creseis aciucula shell structure">creseis aciucula shell structure</option>
+                                
+                                    <option value="mscs">mscs</option>
+                                
+                                    <option value="gradient functional hydrogels">gradient functional hydrogels</option>
+                                
+                                    <option value="multiscale structures">multiscale structures</option>
+                                
+                                    <option value="tailor-designed multiscale next-generation specialized structures">tailor-designed multiscale next-generation specialized structures</option>
+                                
+                                    <option value="bio-inspired materials">bio-inspired materials</option>
+                                
+                                    <option value="biomechanical contribution to joint performance">biomechanical contribution to joint performance</option>
+                                
+                                    <option value="biomechanical interactions">biomechanical interactions</option>
+                                
+                                    <option value="chnfs">chnfs</option>
+                                
+                                    <option value="cnfs">cnfs</option>
+                                
+                                    <option value="these techniques">these techniques</option>
+                                
+                                    <option value="testing condition">testing condition</option>
+                                
+                                    <option value="specific structural features of ecm organization">specific structural features of ecm organization</option>
+                                
+                                    <option value="biocompatible materials">biocompatible materials</option>
+                                
+                                    <option value="biodegradable metals">biodegradable metals</option>
+                                
+                                    <option value="biomedical applications">biomedical applications</option>
+                                
+                                    <option value="silk materials">silk materials</option>
+                                
+                                    <option value="functionalization of biocompatible materials at the mesoscale">functionalization of biocompatible materials at the mesoscale</option>
+                                
+                                    <option value="functionalized biocompatible materials">functionalized biocompatible materials</option>
+                                
+                                    <option value="inorganic component">inorganic component</option>
+                                
+                                    <option value="organic components">organic components</option>
+                                
+                                    <option value="conductive polymer matrices">conductive polymer matrices</option>
+                                
+                                    <option value="homogeneous cell distributions">homogeneous cell distributions</option>
+                                
+                                    <option value="concept">concept</option>
+                                
+                                    <option value="good histocompatibility material">good histocompatibility material</option>
+                                
+                                    <option value="high degradation rate material">high degradation rate material</option>
+                                
+                                    <option value="high mechanical strength">high mechanical strength</option>
+                                
+                                    <option value="microporous structure material">microporous structure material</option>
+                                
+                                    <option value="reduced degradation rate material">reduced degradation rate material</option>
+                                
+                                    <option value="biodegradable materials">biodegradable materials</option>
+                                
+                                    <option value="biodegradability">biodegradability</option>
+                                
+                                    <option value="polymeric materials">polymeric materials</option>
+                                
+                                    <option value="biological materials">biological materials</option>
+                                
+                                    <option value="abrasion resistance">abrasion resistance</option>
+                                
+                                    <option value="anticounterfeiting functionality">anticounterfeiting functionality</option>
+                                
+                                    <option value="catalytic functionality">catalytic functionality</option>
+                                
+                                    <option value="chemical performance functionality">chemical performance functionality</option>
+                                
+                                    <option value="electrical functionality">electrical functionality</option>
+                                
+                                    <option value="lightweightness">lightweightness</option>
+                                
+                                    <option value="novel functionalities">novel functionalities</option>
+                                
+                                    <option value="paramagnetism">paramagnetism</option>
+                                
+                                    <option value="tailored optical properties">tailored optical properties</option>
+                                
+                                    <option value="various applications">various applications</option>
+                                
+                                    <option value="lightweight">lightweight</option>
+                                
+                                    <option value="tough">tough</option>
+                                
+                                    <option value="such as mussel byssal threads and slug slime">such as mussel byssal threads and slug slime</option>
+                                
+                                    <option value="sound amplification">sound amplification</option>
+                                
+                                    <option value="sound amplification mechanisms">sound amplification mechanisms</option>
+                                
+                                    <option value="sound control">sound control</option>
+                                
+                                    <option value="sound insulation">sound insulation</option>
+                                
+                                    <option value="sound insulation mechanisms">sound insulation mechanisms</option>
+                                
+                                    <option value="toughening mechanisms">toughening mechanisms</option>
+                                
+                                    <option value="vibration damping">vibration damping</option>
+                                
+                                    <option value="vibration damping mechanisms">vibration damping mechanisms</option>
+                                
+                                    <option value="vibration isolation">vibration isolation</option>
+                                
+                                    <option value="vibration isolation mechanisms">vibration isolation mechanisms</option>
+                                
+                                    <option value="hierarchical architecture">hierarchical architecture</option>
+                                
+                                    <option value="seashells">seashells</option>
+                                
+                                    <option value="spider silk">spider silk</option>
+                                
+                                    <option value="wood">wood</option>
+                                
+                                    <option value="buckling behavior">buckling behavior</option>
+                                
+                                    <option value="structure and function">structure and function</option>
+                                
+                                    <option value="flexible">flexible</option>
+                                
+                                    <option value="flexible gas sensors">flexible gas sensors</option>
+                                
+                                    <option value="green">green</option>
+                                
+                                    <option value="green gas sensors">green gas sensors</option>
+                                
+                                    <option value="highly sensitive">highly sensitive</option>
+                                
+                                    <option value="light-weights">light-weights</option>
+                                
+                                    <option value="low-cost gas sensors">low-cost gas sensors</option>
+                                
+                                    <option value="traditional sensing materials">traditional sensing materials</option>
+                                
+                                    <option value="unique properties">unique properties</option>
+                                
+                                    <option value="wearables">wearables</option>
+                                
+                                    <option value="materials science">materials science</option>
+                                
+                                    <option value="synthetic polymers">synthetic polymers</option>
+                                
+                                    <option value="anisotropic lattice structures and porous designs">anisotropic lattice structures and porous designs</option>
+                                
+                                    <option value="cells">cells</option>
+                                
+                                    <option value="energy consumption">energy consumption</option>
+                                
+                                    <option value="living organisms">living organisms</option>
+                                
+                                    <option value="medical device applications">medical device applications</option>
+                                
+                                    <option value="micro-/nano-topographies">micro-/nano-topographies</option>
+                                
+                                    <option value="multi-scale geometries">multi-scale geometries</option>
+                                
+                                    <option value="strain/stress interactions">strain/stress interactions</option>
+                                
+                                    <option value="traditional materials">traditional materials</option>
+                                
+                                    <option value="degree of optimization achieved">degree of optimization achieved</option>
+                                
+                                    <option value="multi-scale toughening mechanisms">multi-scale toughening mechanisms</option>
+                                
+                                    <option value="biomimetic devices">biomimetic devices</option>
+                                
+                                    <option value="computed tomography">computed tomography</option>
+                                
+                                    <option value="magnetic resonance imaging (mri)">magnetic resonance imaging (mri)</option>
+                                
+                                    <option value="fibroinallier bone (under melanelike loading conditions)">fibroinallier bone (under melanelike loading conditions)</option>
+                                
+                                    <option value="minerals">minerals</option>
+                                
+                                    <option value="rigid structures">rigid structures</option>
+                                
+                                    <option value="mineralized tissue">mineralized tissue</option>
+                                
+                                    <option value="chiton teeth">chiton teeth</option>
+                                
+                                    <option value="lobster cuticle">lobster cuticle</option>
+                                
+                                    <option value="mantis shrimp clubs">mantis shrimp clubs</option>
+                                
+                                    <option value="squid beaks">squid beaks</option>
+                                
+                                    <option value="chitin nanofibrils">chitin nanofibrils</option>
+                                
+                                    <option value="deformation">deformation</option>
+                                
+                                    <option value="engineering">engineering</option>
+                                
+                                    <option value="atomic microstructure">atomic microstructure</option>
+                                
+                                    <option value="covalent cross-links">covalent cross-links</option>
+                                
+                                    <option value="hydrogen bonds">hydrogen bonds</option>
+                                
+                                    <option value="intermolecular entanglements">intermolecular entanglements</option>
+                                
+                                    <option value="molecular unfolding">molecular unfolding</option>
+                                
+                                    <option value="sliding">sliding</option>
+                                
+                                    <option value="microct">microct</option>
+                                
+                                    <option value="x-ray micro computed tomography (microct)">x-ray micro computed tomography (microct)</option>
+                                
+                                    <option value="weibull modulus">weibull modulus</option>
+                                
+                                    <option value="hierarchical_structures">hierarchical_structures</option>
+                                
+                                    <option value="fractal geometry">fractal geometry</option>
+                                
+                                    <option value="nacre">nacre</option>
+                                
+                                    <option value="self-similar structures">self-similar structures</option>
+                                
+                                    <option value="accurate characterization">accurate characterization</option>
+                                
+                                    <option value="delicate nature">delicate nature</option>
+                                
+                                    <option value="natural sources">natural sources</option>
+                                
+                                    <option value="relevant mechanics theories">relevant mechanics theories</option>
+                                
+                                    <option value="nonlinear viscoelastic behavior">nonlinear viscoelastic behavior</option>
+                                
+                                    <option value="phormidium spp.">phormidium spp.</option>
+                                
+                                    <option value="photopatterning">photopatterning</option>
+                                
+                                    <option value="substrate">substrate</option>
+                                
+                                    <option value="fracture mechanisms">fracture mechanisms</option>
+                                
+                                    <option value="mechanical sensing">mechanical sensing</option>
+                                
+                                    <option value="nucleus">nucleus</option>
+                                
+                                    <option value="structural changes">structural changes</option>
+                                
+                                    <option value="tissue formation">tissue formation</option>
+                                
+                                    <option value="various biological processes">various biological processes</option>
+                                
+                                    <option value="staggered nanostructures">staggered nanostructures</option>
+                                
+                                    <option value="mechanical behavior">mechanical behavior</option>
+                                
+                                    <option value="light elements">light elements</option>
+                                
+                                    <option value="metal ions">metal ions</option>
+                                
+                                    <option value="multifunctionality">multifunctionality</option>
+                                
+                                    <option value="extracellular matrix">extracellular matrix</option>
+                                
+                                    <option value="fibers">fibers</option>
+                                
+                                    <option value="technical materials">technical materials</option>
+                                
+                                    <option value="fracture mechanics">fracture mechanics</option>
+                                
+                                    <option value="structure-property relationships">structure-property relationships</option>
+                                
+                                    <option value="cooperativity">cooperativity</option>
+                                
+                                    <option value="multiscale computational methods">multiscale computational methods</option>
+                                
+                                    <option value="synthetic materials">synthetic materials</option>
+                                
+                                    <option value="mineral crystals">mineral crystals</option>
+                                
+                                    <option value="nanostructures">nanostructures</option>
+                                
+                                    <option value="impact resistance">impact resistance</option>
+                                
+                                    <option value="composite">composite</option>
+                                
+                                    <option value="defining interfaces">defining interfaces</option>
+                                
+                                    <option value="hierarchical">hierarchical</option>
+                                
+                                    <option value="porous">porous</option>
+                                
+                                    <option value="viscoelastic/viscoplastic">viscoelastic/viscoplastic</option>
+                                
+                                    <option value="ecm">ecm</option>
+                                
+                                    <option value="maximum tensile stress">maximum tensile stress</option>
+                                
+                                    <option value="extrinsic toughening mechanisms">extrinsic toughening mechanisms</option>
+                                
+                                    <option value="intrinsic toughening mechanisms">intrinsic toughening mechanisms</option>
+                                
+                                    <option value="protein secondary structure">protein secondary structure</option>
+                                
+                                    <option value="keratin">keratin</option>
+                                
+                                    <option value="experimental characterization techniques">experimental characterization techniques</option>
+                                
+                                    <option value="quantum mechanics calculations">quantum mechanics calculations</option>
+                                
+                                    <option value="3d hierarchical materials">3d hierarchical materials</option>
+                                
+                                    <option value="3d structure">3d structure</option>
+                                
+                                    <option value="adhesion properties">adhesion properties</option>
+                                
+                                    <option value="antimicrobial activity">antimicrobial activity</option>
+                                
+                                    <option value="batteries">batteries</option>
+                                
+                                    <option value="bending">bending</option>
+                                
+                                    <option value="biocomponents">biocomponents</option>
+                                
+                                    <option value="butterfly">butterfly</option>
+                                
+                                    <option value="continuous motion behavior">continuous motion behavior</option>
+                                
+                                    <option value="dandelion">dandelion</option>
+                                
+                                    <option value="drape">drape</option>
+                                
+                                    <option value="exceptional mechanical strength">exceptional mechanical strength</option>
+                                
+                                    <option value="flexibility">flexibility</option>
+                                
+                                    <option value="gecko">gecko</option>
+                                
+                                    <option value="grape">grape</option>
+                                
+                                    <option value="hydrophobicity">hydrophobicity</option>
+                                
+                                    <option value="lotus leaf">lotus leaf</option>
+                                
+                                    <option value="mussels">mussels</option>
+                                
+                                    <option value="normalized curvature">normalized curvature</option>
+                                
+                                    <option value="separation of oil and water">separation of oil and water</option>
+                                
+                                    <option value="overlapping structures">overlapping structures</option>
+                                
+                                    <option value="robust adhesive properties">robust adhesive properties</option>
+                                
+                                    <option value="rose">rose</option>
+                                
+                                    <option value="sensors">sensors</option>
+                                
+                                    <option value="silk">silk</option>
+                                
+                                    <option value="stiffness">stiffness</option>
+                                
+                                    <option value="structuralcolor">structuralcolor</option>
+                                
+                                    <option value="wearable 'green electronics'">wearable 'green electronics'</option>
+                                
+                                    <option value="mollusk shells">mollusk shells</option>
+                                
+                                    <option value="functionally graded materials">functionally graded materials</option>
+                                
+                                    <option value="inspiration for engineering">inspiration for engineering</option>
+                                
+                                    <option value="useful source for research">useful source for research</option>
+                                
+                                    <option value="marine mollusk shell">marine mollusk shell</option>
+                                
+                                    <option value="functional materials">functional materials</option>
+                                
+                                    <option value="nanocomposite fibers">nanocomposite fibers</option>
+                                
+                                    <option value="potential">potential</option>
+                                
+                                    <option value="microgroove-like structures">microgroove-like structures</option>
+                                
+                                    <option value="enhanced stiffness">enhanced stiffness</option>
+                                
+                                    <option value="enhanced toughness">enhanced toughness</option>
+                                
+                                    <option value="xiao-sheng zhang">xiao-sheng zhang</option>
+                                
+                                    <option value="lightweight materials">lightweight materials</option>
+                                
+                                    <option value="government agency">government agency</option>
+                                
+                                    <option value="industry">industry</option>
+                                
+                                    <option value="can be developed for various applications">can be developed for various applications</option>
+                                
+                                    <option value="magnetic materials">magnetic materials</option>
+                                
+                                    <option value="new magnetic materials">new magnetic materials</option>
+                                
+                                    <option value="optically functional materials">optically functional materials</option>
+                                
+                                    <option value="wear-resistant materials">wear-resistant materials</option>
+                                
+                                    <option value="pops">pops</option>
+                                
+                                    <option value="titanium">titanium</option>
+                                
+                                    <option value="nano-cps">nano-cps</option>
+                                
+                                    <option value="nanoporous materials">nanoporous materials</option>
+                                
+                                    <option value="scaffolds for bone graft applications">scaffolds for bone graft applications</option>
+                                
+                                    <option value="naturally derived photonic materials">naturally derived photonic materials</option>
+                                
+                                    <option value="pei">pei</option>
+                                
+                                    <option value="hydrogel bioadhesives">hydrogel bioadhesives</option>
+                                
+                                    <option value="nanochitin gels">nanochitin gels</option>
+                                
+                                    <option value="green_electronics">green_electronics</option>
+                                
+                                    <option value="programmable glycodendrimers">programmable glycodendrimers</option>
+                                
+                                    <option value="unsm-treated nti">unsm-treated nti</option>
+                                
+                                    <option value="biological functionality">biological functionality</option>
+                                
+                                    <option value="framework nucleic acids">framework nucleic acids</option>
+                                
+                                    <option value="customized arteriovenous grafts">customized arteriovenous grafts</option>
+                                
+                                    <option value="implant biocompatibility">implant biocompatibility</option>
+                                
+                                    <option value="nano hydroxyapatite (nha)">nano hydroxyapatite (nha)</option>
+                                
+                                    <option value="bc">bc</option>
+                                
+                                    <option value="bc composite">bc composite</option>
+                                
+                                    <option value="functionalization">functionalization</option>
+                                
+                                    <option value="magnetic nanoparticles">magnetic nanoparticles</option>
+                                
+                                    <option value="sf">sf</option>
+                                
+                                    <option value="sf-gelatin scaffolds">sf-gelatin scaffolds</option>
+                                
+                                    <option value="ti">ti</option>
+                                
+                                    <option value="bt13">bt13</option>
+                                
+                                    <option value="soft lithography">soft lithography</option>
+                                
+                                    <option value="mao-treated scaffolds">mao-treated scaffolds</option>
+                                
+                                    <option value="collagen microspheres">collagen microspheres</option>
+                                
+                                    <option value="antibiotics">antibiotics</option>
+                                
+                                    <option value="sf-ksbc scaffold">sf-ksbc scaffold</option>
+                                
+                                    <option value="biomineralizedmaterials">biomineralizedmaterials</option>
+                                
+                                    <option value="collagen-based materials">collagen-based materials</option>
+                                
+                                    <option value="nanocellulose">nanocellulose</option>
+                                
+                                    <option value="bactericidal carbon-based coatings">bactericidal carbon-based coatings</option>
+                                
+                                    <option value="drug delivery nanomaterials">drug delivery nanomaterials</option>
+                                
+                                    <option value="titanium and its alloys">titanium and its alloys</option>
+                                
+                                    <option value="hierarchical surfaces">hierarchical surfaces</option>
+                                
+                                    <option value="unsm-treated niti">unsm-treated niti</option>
+                                
+                                    <option value="nanohydroxyapatite">nanohydroxyapatite</option>
+                                
+                                    <option value="cellulose (cel)">cellulose (cel)</option>
+                                
+                                    <option value="silk fibroin (sf)">silk fibroin (sf)</option>
+                                
+                                    <option value="plga">plga</option>
+                                
+                                    <option value="composite hydrogels">composite hydrogels</option>
+                                
+                                    <option value="3d-printed silica-sf aerogel scaffolds">3d-printed silica-sf aerogel scaffolds</option>
+                                
+                                    <option value="mbg incorporation">mbg incorporation</option>
+                                
+                                    <option value="biocomposites">biocomposites</option>
+                                
+                                    <option value="cellulose">cellulose</option>
+                                
+                                    <option value="quercetin">quercetin</option>
+                                
+                                    <option value="biomolecules">biomolecules</option>
+                                
+                                    <option value="cm-rgd addition">cm-rgd addition</option>
+                                
+                                    <option value="engineering and biology">engineering and biology</option>
+                                
+                                    <option value="composite materials">composite materials</option>
+                                
+                                    <option value="scalable fabrication techniques">scalable fabrication techniques</option>
+                                
+                                    <option value="hierarchically structured composites">hierarchically structured composites</option>
+                                
+                                    <option value="improved mechanical properties">improved mechanical properties</option>
+                                
+                                    <option value="porosity">porosity</option>
+                                
+                                    <option value="montmorillonite (mmt) platelets">montmorillonite (mmt) platelets</option>
+                                
+                                    <option value="bosia et al.">bosia et al.</option>
+                                
+                                    <option value="tsai and hahn (1980)">tsai and hahn (1980)</option>
+                                
+                                    <option value="functionally graded materials (fgms)">functionally graded materials (fgms)</option>
+                                
+                                    <option value="clm composites">clm composites</option>
+                                
+                                    <option value="real environments with thermal and flame hazards">real environments with thermal and flame hazards</option>
+                                
+                                    <option value="emi shielding applications">emi shielding applications</option>
+                                
+                                    <option value="mxene aerogels">mxene aerogels</option>
+                                
+                                    <option value="combining different gas sensing materials or functionalizing them with other materials">combining different gas sensing materials or functionalizing them with other materials</option>
+                                
+                                    <option value="delamination">delamination</option>
+                                
+                                    <option value="programmable anisotropy">programmable anisotropy</option>
+                                
+                                    <option value="multiple material components">multiple material components</option>
+                                
+                                    <option value="bioactivity and mechanical properties">bioactivity and mechanical properties</option>
+                                
+                                    <option value="enhanced mechanical properties">enhanced mechanical properties</option>
+                                
+                                    <option value="magnetophoresis">magnetophoresis</option>
+                                
+                                    <option value="nanoparticles">nanoparticles</option>
+                                
+                                    <option value="fiber orientation">fiber orientation</option>
+                                
+                                    <option value="real-world applications">real-world applications</option>
+                                
+                                    <option value="osseous tissue">osseous tissue</option>
+                                
+                                    <option value="turtle shell">turtle shell</option>
+                                
+                                    <option value="liquid crystal chitin whiskers">liquid crystal chitin whiskers</option>
+                                
+                                    <option value="nanowhiskers">nanowhiskers</option>
+                                
+                                    <option value="hc-fm">hc-fm</option>
+                                
+                                    <option value="polymer composites">polymer composites</option>
+                                
+                                    <option value="damage mechanics">damage mechanics</option>
+                                
+                                    <option value="shear modulus">shear modulus</option>
+                                
+                                    <option value="thermal stability">thermal stability</option>
+                                
+                                    <option value="protective oxide scale">protective oxide scale</option>
+                                
+                                    <option value="networks">networks</option>
+                                
+                                    <option value="elasticity theory">elasticity theory</option>
+                                
+                                    <option value="engineering applications">engineering applications</option>
+                                
+                                    <option value="excellent ems">excellent ems</option>
+                                
+                                    <option value="flame resistance">flame resistance</option>
+                                
+                                    <option value="high electrical conductivity">high electrical conductivity</option>
+                                
+                                    <option value="rational mechanical strength">rational mechanical strength</option>
+                                
+                                    <option value="carbon fiber reinforced polymers (cfrps)">carbon fiber reinforced polymers (cfrps)</option>
+                                
+                                    <option value="anisotropicmaterials">anisotropicmaterials</option>
+                                
+                                    <option value="dfharchitecture">dfharchitecture</option>
+                                
+                                    <option value="dmbarchitecture">dmbarchitecture</option>
+                                
+                                    <option value="dslarchitecture">dslarchitecture</option>
+                                
+                                    <option value="cured photonic resin films">cured photonic resin films</option>
+                                
+                                    <option value="elastic modulus values">elastic modulus values</option>
+                                
+                                    <option value="hardness">hardness</option>
+                                
+                                    <option value="self-assembly kinetics">self-assembly kinetics</option>
+                                
+                                    <option value="optical properties">optical properties</option>
+                                
+                                    <option value="self-assembly of block copolymers">self-assembly of block copolymers</option>
+                                
+                                    <option value="thermosetting photonic resins">thermosetting photonic resins</option>
+                                
+                                    <option value="decorative coatings">decorative coatings</option>
+                                
+                                    <option value="optical filters">optical filters</option>
+                                
+                                    <option value="photonic structures">photonic structures</option>
+                                
+                                    <option value="security labeling">security labeling</option>
+                                
+                                    <option value="vivid colors">vivid colors</option>
+                                
+                                    <option value="contact ultrasonic measurements">contact ultrasonic measurements</option>
+                                
+                                    <option value="directional microstructures">directional microstructures</option>
+                                
+                                    <option value="k_i toughness">k_i toughness</option>
+                                
+                                    <option value="k_j">k_j</option>
+                                
+                                    <option value="human intertubular dentin">human intertubular dentin</option>
+                                
+                                    <option value="human peritubular dentin">human peritubular dentin</option>
+                                
+                                    <option value="mold materials">mold materials</option>
+                                
+                                    <option value="fromroottotip">fromroottotip</option>
+                                
+                                    <option value="lobsters">lobsters</option>
+                                
+                                    <option value="nanocrystalline materials">nanocrystalline materials</option>
+                                
+                                    <option value="atomic coordination">atomic coordination</option>
+                                
+                                    <option value="atomic separation">atomic separation</option>
+                                
+                                    <option value="crystal structure">crystal structure</option>
+                                
+                                    <option value="electro-valence">electro-valence</option>
+                                
+                                    <option value="element chemical bond">element chemical bond</option>
+                                
+                                    <option value="materials">materials</option>
+                                
+                                    <option value="indentation depth">indentation depth</option>
+                                
+                                    <option value="maximum depth">maximum depth</option>
+                                
+                                    <option value="tangent depth">tangent depth</option>
+                                
+                                    <option value="functional surfaces">functional surfaces</option>
+                                
+                                    <option value="nanoindentation">nanoindentation</option>
+                                
+                                    <option value="biogenic materials">biogenic materials</option>
+                                
+                                    <option value="iron">iron</option>
+                                
+                                    <option value="elastic modulus">elastic modulus</option>
+                                
+                                    <option value="nha">nha</option>
+                                
+                                    <option value="material properties">material properties</option>
+                                
+                                    <option value="ebsd measurements">ebsd measurements</option>
+                                
+                                    <option value="minute misorientations">minute misorientations</option>
+                                
+                                    <option value="ecap">ecap</option>
+                                
+                                    <option value="smat">smat</option>
+                                
+                                    <option value="extrusion">extrusion</option>
+                                
+                                    <option value="friction stir">friction stir</option>
+                                
+                                    <option value="high-strain extended shear deformation">high-strain extended shear deformation</option>
+                                
+                                    <option value="rolling">rolling</option>
+                                
+                                    <option value="surface shear deformation under wear">surface shear deformation under wear</option>
+                                
+                                    <option value="keratin layer">keratin layer</option>
+                                
+                                    <option value="pi-85 sem picoindenter">pi-85 sem picoindenter</option>
+                                
+                                    <option value="iso standards">iso standards</option>
+                                
+                                    <option value="inner shell">inner shell</option>
+                                
+                                    <option value="bone tissue">bone tissue</option>
+                                
+                                    <option value="dej">dej</option>
+                                
+                                    <option value="mechanicalproperties">mechanicalproperties</option>
+                                
+                                    <option value="cribellum layer">cribellum layer</option>
+                                
+                                    <option value="frustule layers">frustule layers</option>
+                                
+                                    <option value="0.16 gpa">0.16 gpa</option>
+                                
+                                    <option value="0.60 gpa">0.60 gpa</option>
+                                
+                                    <option value="cuticle of cypister japonicus beetle">cuticle of cypister japonicus beetle</option>
+                                
+                                    <option value="metal-ion cross-linking">metal-ion cross-linking</option>
+                                
+                                    <option value="inner layer">inner layer</option>
+                                
+                                    <option value="outermost layer">outermost layer</option>
+                                
+                                    <option value="nanocomposites">nanocomposites</option>
+                                
+                                    <option value="helical structures">helical structures</option>
+                                
+                                    <option value="mcf arrangement">mcf arrangement</option>
+                                
+                                    <option value="metal complexes">metal complexes</option>
+                                
+                                    <option value="biopolymer matrix">biopolymer matrix</option>
+                                
+                                    <option value="focus">focus</option>
+                                
+                                    <option value="staggered arrangements">staggered arrangements</option>
+                                
+                                    <option value="samples">samples</option>
+                                
+                                    <option value="hierarchical scaffolds (2)">hierarchical scaffolds (2)</option>
+                                
+                                    <option value="conventional hydrogels">conventional hydrogels</option>
+                                
+                                    <option value="cs">cs</option>
+                                
+                                    <option value="cs hydrogel obtained by alkaline solvent method">cs hydrogel obtained by alkaline solvent method</option>
+                                
+                                    <option value="helical nanofibers">helical nanofibers</option>
+                                
+                                    <option value="spd processes">spd processes</option>
+                                
+                                    <option value="mechanophores">mechanophores</option>
+                                
+                                    <option value="stress-responsive polymeric materials">stress-responsive polymeric materials</option>
+                                
+                                    <option value="pangolin scales">pangolin scales</option>
+                                
+                                    <option value="three-dimensional cellular materials">three-dimensional cellular materials</option>
+                                
+                                    <option value="biological structures">biological structures</option>
+                                
+                                    <option value="protection">protection</option>
+                                
+                                    <option value="nanoparticles (nps)">nanoparticles (nps)</option>
+                                
+                                    <option value="hydrophilic polymers">hydrophilic polymers</option>
+                                
+                                    <option value="breakage">breakage</option>
+                                
+                                    <option value="elongation">elongation</option>
+                                
+                                    <option value="fiber alignment">fiber alignment</option>
+                                
+                                    <option value="interfiber slippage">interfiber slippage</option>
+                                
+                                    <option value="mof loading">mof loading</option>
+                                
+                                    <option value="enamel">enamel</option>
+                                
+                                    <option value="straining-dominated structures">straining-dominated structures</option>
+                                
+                                    <option value="in situ foaming fdm technology">in situ foaming fdm technology</option>
+                                
+                                    <option value="fiber distribution">fiber distribution</option>
+                                
+                                    <option value="hyperelasticity">hyperelasticity</option>
+                                
+                                    <option value="nonreactive force fields">nonreactive force fields</option>
+                                
+                                    <option value="substantially improved compared to plain epoxy">substantially improved compared to plain epoxy</option>
+                                
+                                    <option value="tuatara enamel">tuatara enamel</option>
+                                
+                                    <option value="nanoindentation experiments">nanoindentation experiments</option>
+                                
+                                    <option value="healing agents">healing agents</option>
+                                
+                                    <option value="porous fibers">porous fibers</option>
+                                
+                                    <option value="divalent metal ions">divalent metal ions</option>
+                                
+                                    <option value="go nanosheets">go nanosheets</option>
+                                
+                                    <option value="equine hoof wall tissue">equine hoof wall tissue</option>
+                                
+                                    <option value="differences">differences</option>
+                                
+                                    <option value="biomimetic engineering">biomimetic engineering</option>
+                                
+                                    <option value="plasticity">plasticity</option>
+                                
+                                    <option value="viscoelasticity">viscoelasticity</option>
+                                
+                                    <option value="polyhipes (poly(hi-erctically coiled acrylate) hydrogels)">polyhipes (poly(hi-erctically coiled acrylate) hydrogels)</option>
+                                
+                                    <option value="biological materials (mechanical properties)">biological materials (mechanical properties)</option>
+                                
+                                    <option value="macro-scale">macro-scale</option>
+                                
+                                    <option value="nano-scale">nano-scale</option>
+                                
+                                    <option value="smart materials">smart materials</option>
+                                
+                                    <option value="acrylic acid treatment">acrylic acid treatment</option>
+                                
+                                    <option value="nanolattices">nanolattices</option>
+                                
+                                    <option value="nanofabrication method">nanofabrication method</option>
+                                
+                                    <option value="halloysite nanotubes">halloysite nanotubes</option>
+                                
+                                    <option value="montmorillonite">montmorillonite</option>
+                                
+                                    <option value="keratin shells">keratin shells</option>
+                                
+                                    <option value="accurate modeling">accurate modeling</option>
+                                
+                                    <option value="abs filament">abs filament</option>
+                                
+                                    <option value="lower plate">lower plate</option>
+                                
+                                    <option value="fgms">fgms</option>
+                                
+                                    <option value="electric field">electric field</option>
+                                
+                                    <option value="hydration">hydration</option>
+                                
+                                    <option value="strain rate">strain rate</option>
+                                
+                                    <option value="surface morphology">surface morphology</option>
+                                
+                                    <option value="mechanical strength">mechanical strength</option>
+                                
+                                    <option value="chemical composition">chemical composition</option>
+                                
+                                    <option value="multifunctional materials">multifunctional materials</option>
+                                
+                                    <option value="graphene-based nanocomposites (gans)">graphene-based nanocomposites (gans)</option>
+                                
+                                    <option value="intermediate layer">intermediate layer</option>
+                                
+                                    <option value="coarse-grained model">coarse-grained model</option>
+                                
+                                    <option value="strength properties">strength properties</option>
+                                
+                                    <option value="proteins">proteins</option>
+                                
+                                    <option value="cnc/polymer nanocomposites">cnc/polymer nanocomposites</option>
+                                
+                                    <option value="substantially higher stiffness and ductility">substantially higher stiffness and ductility</option>
+                                
+                                    <option value="bone tesserae">bone tesserae</option>
+                                
+                                    <option value="anisotropic hydrogels">anisotropic hydrogels</option>
+                                
+                                    <option value="cellular materials">cellular materials</option>
+                                
+                                    <option value="coconut shell material">coconut shell material</option>
+                                
+                                    <option value="layered silicates">layered silicates</option>
+                                
+                                    <option value="bseisa-sfhs">bseisa-sfhs</option>
+                                
+                                    <option value="collagen hydrogels">collagen hydrogels</option>
+                                
+                                    <option value="bone mineralization">bone mineralization</option>
+                                
+                                    <option value="hydrogels (alginate and nn)">hydrogels (alginate and nn)</option>
+                                
+                                    <option value="collagen matrices">collagen matrices</option>
+                                
+                                    <option value="biological protein materials">biological protein materials</option>
+                                
+                                    <option value="ti-6al-4v alloy">ti-6al-4v alloy</option>
+                                
+                                    <option value="self-assembled chitinous structures">self-assembled chitinous structures</option>
+                                
+                                    <option value="rotation of hard phases">rotation of hard phases</option>
+                                
+                                    <option value="decellularized articular cartilage ecm">decellularized articular cartilage ecm</option>
+                                
+                                    <option value="short-cut bc nanofibers">short-cut bc nanofibers</option>
+                                
+                                    <option value="bonifacio et al.">bonifacio et al.</option>
+                                
+                                    <option value="clay materials">clay materials</option>
+                                
+                                    <option value="natural bone">natural bone</option>
+                                
+                                    <option value="nc concentration">nc concentration</option>
+                                
+                                    <option value="afm">afm</option>
+                                
+                                    <option value="dental enamel">dental enamel</option>
+                                
+                                    <option value="computational analysis">computational analysis</option>
+                                
+                                    <option value="steered molecular dynamics simulations">steered molecular dynamics simulations</option>
+                                
+                                    <option value="dense bone tissue">dense bone tissue</option>
+                                
+                                    <option value="compressive strength">compressive strength</option>
+                                
+                                    <option value="universal testing machine">universal testing machine</option>
+                                
+                                    <option value="cnc films">cnc films</option>
+                                
+                                    <option value="collagen-based hydrogels (sbc)">collagen-based hydrogels (sbc)</option>
+                                
+                                    <option value="fiber-reinforced hydrogels">fiber-reinforced hydrogels</option>
+                                
+                                    <option value="macroporous hydrogels">macroporous hydrogels</option>
+                                
+                                    <option value="nanofiber scaffolds">nanofiber scaffolds</option>
+                                
+                                    <option value="complex multiscale biological tissues">complex multiscale biological tissues</option>
+                                
+                                    <option value="stiffness profiles">stiffness profiles</option>
+                                
+                                    <option value="cooling rate">cooling rate</option>
+                                
+                                    <option value="stress-strain curve">stress-strain curve</option>
+                                
+                                    <option value="carbon nanotube yarn">carbon nanotube yarn</option>
+                                
+                                    <option value="lamellar bone">lamellar bone</option>
+                                
+                                    <option value="length scale">length scale</option>
+                                
+                                    <option value="monolithic calcium carbonate materials">monolithic calcium carbonate materials</option>
+                                
+                                    <option value="collagen molecular orientation">collagen molecular orientation</option>
+                                
+                                    <option value="nanofillers">nanofillers</option>
+                                
+                                    <option value="synchrotron-based x-ray diffraction techniques">synchrotron-based x-ray diffraction techniques</option>
+                                
+                                    <option value="cellulose nanofibrils (cnf) enhancement effect">cellulose nanofibrils (cnf) enhancement effect</option>
+                                
+                                    <option value="solvent-exchange strategies">solvent-exchange strategies</option>
+                                
+                                    <option value="synergistic effect">synergistic effect</option>
+                                
+                                    <option value="hierarchical architecture of ecm organization">hierarchical architecture of ecm organization</option>
+                                
+                                    <option value="water">water</option>
+                                
+                                    <option value="bioinspired graphene/amyloid composites">bioinspired graphene/amyloid composites</option>
+                                
+                                    <option value="cross-beta motifs">cross-beta motifs</option>
+                                
+                                    <option value="intermolecular interactions">intermolecular interactions</option>
+                                
+                                    <option value="artificial state factors">artificial state factors</option>
+                                
+                                    <option value="biological composites">biological composites</option>
+                                
+                                    <option value="composition">composition</option>
+                                
+                                    <option value="internal measures">internal measures</option>
+                                
+                                    <option value="physiological parameters">physiological parameters</option>
+                                
+                                    <option value="woodpeckers' beaks">woodpeckers' beaks</option>
+                                
+                                    <option value="alpha_keratin">alpha_keratin</option>
+                                
+                                    <option value="keratinous structures">keratinous structures</option>
+                                
+                                    <option value="ce_lamin_macroscopic_fibers">ce_lamin_macroscopic_fibers</option>
+                                
+                                    <option value="wet_fibers">wet_fibers</option>
+                                
+                                    <option value="micro/nanoscale structure control">micro/nanoscale structure control</option>
+                                
+                                    <option value="scalability challenges">scalability challenges</option>
+                                
+                                    <option value="additive fabrication techniques">additive fabrication techniques</option>
+                                
+                                    <option value="crystalline (alpha)-chitin">crystalline (alpha)-chitin</option>
+                                
+                                    <option value="bending stiffness">bending stiffness</option>
+                                
+                                    <option value="effective flexural modulus">effective flexural modulus</option>
+                                
+                                    <option value="protein matrix">protein matrix</option>
+                                
+                                    <option value="compositional influence">compositional influence</option>
+                                
+                                    <option value="processing influence">processing influence</option>
+                                
+                                    <option value="epicuticle">epicuticle</option>
+                                
+                                    <option value="pure curli fiber films">pure curli fiber films</option>
+                                
+                                    <option value="hydrogels (gelma)">hydrogels (gelma)</option>
+                                
+                                    <option value="dry samples">dry samples</option>
+                                
+                                    <option value="arthropod cuticle">arthropod cuticle</option>
+                                
+                                    <option value="helicoidal structure">helicoidal structure</option>
+                                
+                                    <option value="mineralized chitin-protein nanofibrils">mineralized chitin-protein nanofibrils</option>
+                                
+                                    <option value="single-crystalline chitin">single-crystalline chitin</option>
+                                
+                                    <option value="enamel prisms">enamel prisms</option>
+                                
+                                    <option value="mineral contacts">mineral contacts</option>
+                                
+                                    <option value="increased elastic modulus">increased elastic modulus</option>
+                                
+                                    <option value="intergranular cohesive bonds">intergranular cohesive bonds</option>
+                                
+                                    <option value="reduced elastic modulus">reduced elastic modulus</option>
+                                
+                                    <option value="fraction of aligned material">fraction of aligned material</option>
+                                
+                                    <option value="bamboo fiber cell walls">bamboo fiber cell walls</option>
+                                
+                                    <option value="nanograins">nanograins</option>
+                                
+                                    <option value="compact bone">compact bone</option>
+                                
+                                    <option value="material property">material property</option>
+                                
+                                    <option value="materials used in fibrillar arrays">materials used in fibrillar arrays</option>
+                                
+                                    <option value="mra">mra</option>
+                                
+                                    <option value="wood sponge">wood sponge</option>
+                                
+                                    <option value="dry bone samples">dry bone samples</option>
+                                
+                                    <option value="elasticity">elasticity</option>
+                                
+                                    <option value="wet bone samples">wet bone samples</option>
+                                
+                                    <option value="cnt forest">cnt forest</option>
+                                
+                                    <option value="film stiffness">film stiffness</option>
+                                
+                                    <option value="reinforced hydrogels">reinforced hydrogels</option>
+                                
+                                    <option value="frustulia kerguelensis diatoms">frustulia kerguelensis diatoms</option>
+                                
+                                    <option value="1.95 gpa">1.95 gpa</option>
+                                
+                                    <option value="9.80 gpa">9.80 gpa</option>
+                                
+                                    <option value="surface roughness">surface roughness</option>
+                                
+                                    <option value="scaling law">scaling law</option>
+                                
+                                    <option value="damage effects">damage effects</option>
+                                
+                                    <option value="nn alginate-phema hydrogel">nn alginate-phema hydrogel</option>
+                                
+                                    <option value="hema content">hema content</option>
+                                
+                                    <option value="mbaa content">mbaa content</option>
+                                
+                                    <option value="exo- and endocuticle">exo- and endocuticle</option>
+                                
+                                    <option value="poisson's ratio">poisson's ratio</option>
+                                
+                                    <option value="chitin microfibrils">chitin microfibrils</option>
+                                
+                                    <option value="chitin fibrils">chitin fibrils</option>
+                                
+                                    <option value="mineral fiber">mineral fiber</option>
+                                
+                                    <option value="negligible stiffness">negligible stiffness</option>
+                                
+                                    <option value="decreases">decreases</option>
+                                
+                                    <option value="accurate mechanical behavior">accurate mechanical behavior</option>
+                                
+                                    <option value="d">d</option>
+                                
+                                    <option value="all layers">all layers</option>
+                                
+                                    <option value="assumption">assumption</option>
+                                
+                                    <option value="hydroxyapatite crystals">hydroxyapatite crystals</option>
+                                
+                                    <option value="finite element analysis">finite element analysis</option>
+                                
+                                    <option value="bsa-auncs">bsa-auncs</option>
+                                
+                                    <option value="fluorescence emission">fluorescence emission</option>
+                                
+                                    <option value="hybrids">hybrids</option>
+                                
+                                    <option value="solutions">solutions</option>
+                                
+                                    <option value="ftir analysis">ftir analysis</option>
+                                
+                                    <option value="beta-sheets">beta-sheets</option>
+                                
+                                    <option value="synthetic nacre">synthetic nacre</option>
+                                
+                                    <option value="nanomodified graphene oxide (ngo)">nanomodified graphene oxide (ngo)</option>
+                                
+                                    <option value="reduced graphene oxide (rgo)">reduced graphene oxide (rgo)</option>
+                                
+                                    <option value="desired mechanical properties">desired mechanical properties</option>
+                                
+                                    <option value="deacetylated b-chitin">deacetylated b-chitin</option>
+                                
+                                    <option value="ph">ph</option>
+                                
+                                    <option value="salt concentration">salt concentration</option>
+                                
+                                    <option value="shear forces">shear forces</option>
+                                
+                                    <option value="fiber">fiber</option>
+                                
+                                    <option value="protein concentration">protein concentration</option>
+                                
+                                    <option value="shear thinning behavior">shear thinning behavior</option>
+                                
+                                    <option value="water vapor annealing">water vapor annealing</option>
+                                
+                                    <option value="silkworm spinning dope">silkworm spinning dope</option>
+                                
+                                    <option value="beta-sheet structures">beta-sheet structures</option>
+                                
+                                    <option value="complex nanostructures">complex nanostructures</option>
+                                
+                                    <option value="increase in solution viscosity">increase in solution viscosity</option>
+                                
+                                    <option value="random coil conformation">random coil conformation</option>
+                                
+                                    <option value="beta-tcp">beta-tcp</option>
+                                
+                                    <option value="single-photon technique">single-photon technique</option>
+                                
+                                    <option value="two-photon technique">two-photon technique</option>
+                                
+                                    <option value="dynamic testing">dynamic testing</option>
+                                
+                                    <option value="static testing">static testing</option>
+                                
+                                    <option value="strain at break">strain at break</option>
+                                
+                                    <option value="tensile modulus">tensile modulus</option>
+                                
+                                    <option value="ultimate tensile strength">ultimate tensile strength</option>
+                                
+                                    <option value="braided silk scaffolds">braided silk scaffolds</option>
+                                
+                                    <option value="extrusion freeforming">extrusion freeforming</option>
+                                
+                                    <option value="3d">3d</option>
+                                
+                                    <option value="storage (at -70 degrees celsius)">storage (at -70 degrees celsius)</option>
+                                
+                                    <option value="cell adhesion">cell adhesion</option>
+                                
+                                    <option value="compressive testing">compressive testing</option>
+                                
+                                    <option value="ftir spectroscopy">ftir spectroscopy</option>
+                                
+                                    <option value="mtt assay">mtt assay</option>
+                                
+                                    <option value="pbs">pbs</option>
+                                
+                                    <option value="pcl">pcl</option>
+                                
+                                    <option value="sem">sem</option>
+                                
+                                    <option value="synthesis process">synthesis process</option>
+                                
+                                    <option value="three-layer structure">three-layer structure</option>
+                                
+                                    <option value="xrd">xrd</option>
+                                
+                                    <option value="zno nanoparticles">zno nanoparticles</option>
+                                
+                                    <option value="hydroxyapatite (ha)">hydroxyapatite (ha)</option>
+                                
+                                    <option value="biomedical scaffold">biomedical scaffold</option>
+                                
+                                    <option value="demineralization front">demineralization front</option>
+                                
+                                    <option value="basal medium">basal medium</option>
+                                
+                                    <option value="cell culture medium">cell culture medium</option>
+                                
+                                    <option value="hes-mps">hes-mps</option>
+                                
+                                    <option value="osteogenic induction medium">osteogenic induction medium</option>
+                                
+                                    <option value="cell culture">cell culture</option>
+                                
+                                    <option value="polyhipe scaffolds">polyhipe scaffolds</option>
+                                
+                                    <option value="alvetex® scaffolds">alvetex® scaffolds</option>
+                                
+                                    <option value="ascorbic acid">ascorbic acid</option>
+                                
+                                    <option value="beta-glycerolphosphate">beta-glycerolphosphate</option>
+                                
+                                    <option value="dexamethasone">dexamethasone</option>
+                                
+                                    <option value="human fibroblastic growth factor">human fibroblastic growth factor</option>
+                                
+                                    <option value="alginate scaffolds">alginate scaffolds</option>
+                                
+                                    <option value="mbg/alginate composite scaffolds">mbg/alginate composite scaffolds</option>
+                                
+                                    <option value="simulated body fluid (sbf)">simulated body fluid (sbf)</option>
+                                
+                                    <option value="directly palpable tissue">directly palpable tissue</option>
+                                
+                                    <option value="tissues and cells">tissues and cells</option>
+                                
+                                    <option value="biopolymer engineering">biopolymer engineering</option>
+                                
+                                    <option value="bone_tissue">bone_tissue</option>
+                                
+                                    <option value="historical perspectives">historical perspectives</option>
+                                
+                                    <option value="mechanical testing techniques">mechanical testing techniques</option>
+                                
+                                    <option value="conventional materials">conventional materials</option>
+                                
+                                    <option value="fdm">fdm</option>
+                                
+                                    <option value="ldm">ldm</option>
+                                
+                                    <option value="histidine-functionalized peptide building blocks">histidine-functionalized peptide building blocks</option>
+                                
+                                    <option value="yuan et al's development">yuan et al's development</option>
+                                
+                                    <option value="uniaxial tensile tests">uniaxial tensile tests</option>
+                                
+                                    <option value="bone tissue engineering">bone tissue engineering</option>
+                                
+                                    <option value="helicoidal fiber structures">helicoidal fiber structures</option>
+                                
+                                    <option value="magnetite printing technology">magnetite printing technology</option>
+                                
+                                    <option value="self-healing ability">self-healing ability</option>
+                                
+                                    <option value="tunable mechanical properties">tunable mechanical properties</option>
+                                
+                                    <option value="arzt heptahedron">arzt heptahedron</option>
+                                
+                                    <option value="chitin nanofibers">chitin nanofibers</option>
+                                
+                                    <option value="nanoparticles (metallic)">nanoparticles (metallic)</option>
+                                
+                                    <option value="biological_composition">biological_composition</option>
+                                
+                                    <option value="extracellular_matrix">extracellular_matrix</option>
+                                
+                                    <option value="complex behavior">complex behavior</option>
+                                
+                                    <option value="carbon materials">carbon materials</option>
+                                
+                                    <option value="conducting polymers">conducting polymers</option>
+                                
+                                    <option value="low-dimensional materials">low-dimensional materials</option>
+                                
+                                    <option value="digital volume correlation">digital volume correlation</option>
+                                
+                                    <option value="time-resolved in situ synchrotron radiation microcomputed tomography mechanics">time-resolved in situ synchrotron radiation microcomputed tomography mechanics</option>
+                                
+                                    <option value="antimicrobial properties">antimicrobial properties</option>
+                                
+                                    <option value="immune tolerance">immune tolerance</option>
+                                
+                                    <option value="hap">hap</option>
+                                
+                                    <option value="tc">tc</option>
+                                
+                                    <option value="tc-hap nanocomposites">tc-hap nanocomposites</option>
+                                
+                                    <option value="water molecules">water molecules</option>
+                                
+                                    <option value="hydroxyapatite-based composites">hydroxyapatite-based composites</option>
+                                
+                                    <option value="nacre-mimetic design">nacre-mimetic design</option>
+                                
+                                    <option value="zirconia-based composites">zirconia-based composites</option>
+                                
+                                    <option value="porosities">porosities</option>
+                                
+                                    <option value="coarse-grained simulations">coarse-grained simulations</option>
+                                
+                                    <option value="bone-related surgical applications">bone-related surgical applications</option>
+                                
+                                    <option value="bone development">bone development</option>
+                                
+                                    <option value="intramembranous ossification">intramembranous ossification</option>
+                                
+                                    <option value="large cranial defects">large cranial defects</option>
+                                
+                                    <option value="stem cell recruitment">stem cell recruitment</option>
+                                
+                                    <option value="ftir parameters">ftir parameters</option>
+                                
+                                    <option value="acid phosphate substitution">acid phosphate substitution</option>
+                                
+                                    <option value="area of the phosphate band">area of the phosphate band</option>
+                                
+                                    <option value="carbonate-to-mineral ratio">carbonate-to-mineral ratio</option>
+                                
+                                    <option value="collagen cross-linking">collagen cross-linking</option>
+                                
+                                    <option value="mineral maturity">mineral maturity</option>
+                                
+                                    <option value="mineral-to-matrix ratio">mineral-to-matrix ratio</option>
+                                
+                                    <option value="ftir">ftir</option>
+                                
+                                    <option value="biomaterial abnormalities">biomaterial abnormalities</option>
+                                
+                                    <option value="biomaterial composition">biomaterial composition</option>
+                                
+                                    <option value="biomaterial compositional and mechanical properties altered by drugs or interventions">biomaterial compositional and mechanical properties altered by drugs or interventions</option>
+                                
+                                    <option value="biomedical research">biomedical research</option>
+                                
+                                    <option value="collagen integrity">collagen integrity</option>
+                                
+                                    <option value="instrumental and specimen variations">instrumental and specimen variations</option>
+                                
+                                    <option value="amide peaks">amide peaks</option>
+                                
+                                    <option value="non-stoichiometric apatite peaks">non-stoichiometric apatite peaks</option>
+                                
+                                    <option value="ftir imaging">ftir imaging</option>
+                                
+                                    <option value="cxg">cxg</option>
+                                
+                                    <option value="xg">xg</option>
+                                
+                                    <option value="hydroxyapatite scaffolds">hydroxyapatite scaffolds</option>
+                                
+                                    <option value="crystallinity">crystallinity</option>
+                                
+                                    <option value="hydroxyapatite nodules">hydroxyapatite nodules</option>
+                                
+                                    <option value="low-turnover osteoporosis samples">low-turnover osteoporosis samples</option>
+                                
+                                    <option value="hierarchical control">hierarchical control</option>
+                                
+                                    <option value="regenerative biology">regenerative biology</option>
+                                
+                                    <option value="activated macrophages">activated macrophages</option>
+                                
+                                    <option value="inflammatory response">inflammatory response</option>
+                                
+                                    <option value="resorbing macrophages">resorbing macrophages</option>
+                                
+                                    <option value="collagen fibers">collagen fibers</option>
+                                
+                                    <option value="impurities">impurities</option>
+                                
+                                    <option value="type i collagen">type i collagen</option>
+                                
+                                    <option value="cortical bone">cortical bone</option>
+                                
+                                    <option value="osteons">osteons</option>
+                                
+                                    <option value="trabecularbone">trabecularbone</option>
+                                
+                                    <option value="fiber-reinforced composite">fiber-reinforced composite</option>
+                                
+                                    <option value="ligaments">ligaments</option>
+                                
+                                    <option value="tendons">tendons</option>
+                                
+                                    <option value="articular cartilage">articular cartilage</option>
+                                
+                                    <option value="unique nanostructures">unique nanostructures</option>
+                                
+                                    <option value="apaaima scales">apaaima scales</option>
+                                
+                                    <option value="hydration time">hydration time</option>
+                                
+                                    <option value="exponential behavior">exponential behavior</option>
+                                
+                                    <option value="preferred fiber direction">preferred fiber direction</option>
+                                
+                                    <option value="nonlinear stress-strain relationship">nonlinear stress-strain relationship</option>
+                                
+                                    <option value="coat_1">coat_1</option>
+                                
+                                    <option value="polymer-induced liquid-precursor biomineralization">polymer-induced liquid-precursor biomineralization</option>
+                                
+                                    <option value="fascicles">fascicles</option>
+                                
+                                    <option value="fibrils">fibrils</option>
+                                
+                                    <option value="microfibrils">microfibrils</option>
+                                
+                                    <option value="calcified cartilage zone">calcified cartilage zone</option>
+                                
+                                    <option value="deep zone">deep zone</option>
+                                
+                                    <option value="superficial zone">superficial zone</option>
+                                
+                                    <option value="giop-bone">giop-bone</option>
+                                
+                                    <option value="collagen ii">collagen ii</option>
+                                
+                                    <option value="collagen ix">collagen ix</option>
+                                
+                                    <option value="collagen xi">collagen xi</option>
+                                
+                                    <option value="compression">compression</option>
+                                
+                                    <option value="lignin">lignin</option>
+                                
+                                    <option value="hemicellulose">hemicellulose</option>
+                                
+                                    <option value="pectin matrix materials">pectin matrix materials</option>
+                                
+                                    <option value="hydration conditions">hydration conditions</option>
+                                
+                                    <option value="loading conditions">loading conditions</option>
+                                
+                                    <option value="soft tissues (e.g., tendons and ligaments)">soft tissues (e.g., tendons and ligaments)</option>
+                                
+                                    <option value="acid-etched enamel">acid-etched enamel</option>
+                                
+                                    <option value="resilience">resilience</option>
+                                
+                                    <option value="collagen fiber bundles">collagen fiber bundles</option>
+                                
+                                    <option value="muscle cells">muscle cells</option>
+                                
+                                    <option value="tenocytes">tenocytes</option>
+                                
+                                    <option value="atelo-collagen monomers">atelo-collagen monomers</option>
+                                
+                                    <option value="collagen monomers">collagen monomers</option>
+                                
+                                    <option value="ionic strength">ionic strength</option>
+                                
+                                    <option value="low ph">low ph</option>
+                                
+                                    <option value="mechanical strains">mechanical strains</option>
+                                
+                                    <option value="polyethylene glycol">polyethylene glycol</option>
+                                
+                                    <option value="telo-collagen monomers">telo-collagen monomers</option>
+                                
+                                    <option value="tensile mechanical forces">tensile mechanical forces</option>
+                                
+                                    <option value="preassembled collagen networks">preassembled collagen networks</option>
+                                
+                                    <option value="broken layers">broken layers</option>
+                                
+                                    <option value="intact layers">intact layers</option>
+                                
+                                    <option value="more optimally aligned fibrils">more optimally aligned fibrils</option>
+                                
+                                    <option value="crack">crack</option>
+                                
+                                    <option value="tubules">tubules</option>
+                                
+                                    <option value="6">6</option>
+                                
+                                    <option value="cornea">cornea</option>
+                                
+                                    <option value="intraocular fluid pressure">intraocular fluid pressure</option>
+                                
+                                    <option value="maltese cross pattern">maltese cross pattern</option>
+                                
+                                    <option value="regular spacing">regular spacing</option>
+                                
+                                    <option value="skin">skin</option>
+                                
+                                    <option value="stress">stress</option>
+                                
+                                    <option value="transparency">transparency</option>
+                                
+                                    <option value="collagen molecules">collagen molecules</option>
+                                
+                                    <option value="les (1981)">les (1981)</option>
+                                
+                                    <option value="dermis">dermis</option>
+                                
+                                    <option value="fascia">fascia</option>
+                                
+                                    <option value="intervertebral disc">intervertebral disc</option>
+                                
+                                    <option value="ligament">ligament</option>
+                                
+                                    <option value="tendon">tendon</option>
+                                
+                                    <option value="control bone">control bone</option>
+                                
+                                    <option value="homogeneous magnetic field">homogeneous magnetic field</option>
+                                
+                                    <option value="collagen gel">collagen gel</option>
+                                
+                                    <option value="collagen fiber alignment">collagen fiber alignment</option>
+                                
+                                    <option value="cs sponge">cs sponge</option>
+                                
+                                    <option value="bovine femur">bovine femur</option>
+                                
+                                    <option value="manatee rib">manatee rib</option>
+                                
+                                    <option value="samples a and c">samples a and c</option>
+                                
+                                    <option value="blunt trauma">blunt trauma</option>
+                                
+                                    <option value="component phases">component phases</option>
+                                
+                                    <option value="hierarchical structural organization">hierarchical structural organization</option>
+                                
+                                    <option value="lamellar structures">lamellar structures</option>
+                                
+                                    <option value="structural behavior">structural behavior</option>
+                                
+                                    <option value="katamenelli et al. (2012)">katamenelli et al. (2012)</option>
+                                
+                                    <option value="nalla et al.">nalla et al.</option>
+                                
+                                    <option value="yan et al.">yan et al.</option>
+                                
+                                    <option value="yang et al.">yang et al.</option>
+                                
+                                    <option value="inflammatory immune cells">inflammatory immune cells</option>
+                                
+                                    <option value="bone healing">bone healing</option>
+                                
+                                    <option value="osteoclast precursors">osteoclast precursors</option>
+                                
+                                    <option value="woven bone">woven bone</option>
+                                
+                                    <option value="carbonated apatite shell plates">carbonated apatite shell plates</option>
+                                
+                                    <option value="collagen orientation">collagen orientation</option>
+                                
+                                    <option value="indentation modulus">indentation modulus</option>
+                                
+                                    <option value="mineral content">mineral content</option>
+                                
+                                    <option value="multipotent mesenchymal cells">multipotent mesenchymal cells</option>
+                                
+                                    <option value="osteocyte-derived cells">osteocyte-derived cells</option>
+                                
+                                    <option value="osteogenic cell">osteogenic cell</option>
+                                
+                                    <option value="mature osteoblast">mature osteoblast</option>
+                                
+                                    <option value="osteogenic cytokines">osteogenic cytokines</option>
+                                
+                                    <option value="cement line">cement line</option>
+                                
+                                    <option value="ctpr (collagen triple helix rotation parameter)">ctpr (collagen triple helix rotation parameter)</option>
+                                
+                                    <option value="haversian systems">haversian systems</option>
+                                
+                                    <option value="biological materials with tubular structures">biological materials with tubular structures</option>
+                                
+                                    <option value="cracks">cracks</option>
+                                
+                                    <option value="hydroxyapatite fibers">hydroxyapatite fibers</option>
+                                
+                                    <option value="crackpropagation">crackpropagation</option>
+                                
+                                    <option value="distinct yield point">distinct yield point</option>
+                                
+                                    <option value="elasticmodulus">elasticmodulus</option>
+                                
+                                    <option value="eventualfracture">eventualfracture</option>
+                                
+                                    <option value="highstrains">highstrains</option>
+                                
+                                    <option value="nonlinearelasticbehavior">nonlinearelasticbehavior</option>
+                                
+                                    <option value="plastic deformation">plastic deformation</option>
+                                
+                                    <option value="progressivefailure">progressivefailure</option>
+                                
+                                    <option value="yieldstrength">yieldstrength</option>
+                                
+                                    <option value="compactbone">compactbone</option>
+                                
+                                    <option value="scaffold properties">scaffold properties</option>
+                                
+                                    <option value="synthetic biomaterial scaffolds">synthetic biomaterial scaffolds</option>
+                                
+                                    <option value="bone tissue regeneration">bone tissue regeneration</option>
+                                
+                                    <option value="non-uniform mineral distribution">non-uniform mineral distribution</option>
+                                
+                                    <option value="spicules">spicules</option>
+                                
+                                    <option value="bilinear cohesive model">bilinear cohesive model</option>
+                                
+                                    <option value="linear elastic behavior">linear elastic behavior</option>
+                                
+                                    <option value="angiogenic_marker">angiogenic_marker</option>
+                                
+                                    <option value="l_scaffolds">l_scaffolds</option>
+                                
+                                    <option value="mc3t3e1_cells">mc3t3e1_cells</option>
+                                
+                                    <option value="osteogenic_markers">osteogenic_markers</option>
+                                
+                                    <option value="tnf-α">tnf-α</option>
+                                
+                                    <option value="alloy">alloy</option>
+                                
+                                    <option value="size">size</option>
+                                
+                                    <option value="longitudinal growth">longitudinal growth</option>
+                                
+                                    <option value="extracollagenary space">extracollagenary space</option>
+                                
+                                    <option value="mineralized collagen fibrils">mineralized collagen fibrils</option>
+                                
+                                    <option value="interprismatic enamel">interprismatic enamel</option>
+                                
+                                    <option value="(002) lattice plane reflection ring">(002) lattice plane reflection ring</option>
+                                
+                                    <option value="cpic">cpic</option>
+                                
+                                    <option value="dentin">dentin</option>
+                                
+                                    <option value="soft-hard material integration">soft-hard material integration</option>
+                                
+                                    <option value="exoskeleton">exoskeleton</option>
+                                
+                                    <option value="amyloid nanofibrils">amyloid nanofibrils</option>
+                                
+                                    <option value="scaffold surface">scaffold surface</option>
+                                
+                                    <option value="high young's modulus">high young's modulus</option>
+                                
+                                    <option value="isotropic properties">isotropic properties</option>
+                                
+                                    <option value="ivory">ivory</option>
+                                
+                                    <option value="release">release</option>
+                                
+                                    <option value="high density collagen">high density collagen</option>
+                                
+                                    <option value="multiscale approach">multiscale approach</option>
+                                
+                                    <option value="bone break">bone break</option>
+                                
+                                    <option value="implant coatings">implant coatings</option>
+                                
+                                    <option value="hydroxyapatite nanostructures">hydroxyapatite nanostructures</option>
+                                
+                                    <option value="ideal implant scaffolds">ideal implant scaffolds</option>
+                                
+                                    <option value="cellular remodeling">cellular remodeling</option>
+                                
+                                    <option value="extrafibrillar binding phase">extrafibrillar binding phase</option>
+                                
+                                    <option value="collagen fiber mesh">collagen fiber mesh</option>
+                                
+                                    <option value="constructs">constructs</option>
+                                
+                                    <option value="lubricin">lubricin</option>
+                                
+                                    <option value="proteoglycans">proteoglycans</option>
+                                
+                                    <option value="mcf (mineralized collagen fibril)">mcf (mineralized collagen fibril)</option>
+                                
+                                    <option value="alginate">alginate</option>
+                                
+                                    <option value="microstructural anisotropy">microstructural anisotropy</option>
+                                
+                                    <option value="anisotropic mechanical properties">anisotropic mechanical properties</option>
+                                
+                                    <option value="directional freezing">directional freezing</option>
+                                
+                                    <option value="fibroin cryogels">fibroin cryogels</option>
+                                
+                                    <option value="fabrication technique">fabrication technique</option>
+                                
+                                    <option value="ice crystals">ice crystals</option>
+                                
+                                    <option value="expulsion of fibroin molecules">expulsion of fibroin molecules</option>
+                                
+                                    <option value="ceramic particles">ceramic particles</option>
+                                
+                                    <option value="lamellar microstructures">lamellar microstructures</option>
+                                
+                                    <option value="smaller interparticle spacing">smaller interparticle spacing</option>
+                                
+                                    <option value="preferential lamellar growth">preferential lamellar growth</option>
+                                
+                                    <option value="endocarp">endocarp</option>
+                                
+                                    <option value="young's modulus">young's modulus</option>
+                                
+                                    <option value="anisotropic moduli">anisotropic moduli</option>
+                                
+                                    <option value="four-ply laminate">four-ply laminate</option>
+                                
+                                    <option value="longitudinal deformation">longitudinal deformation</option>
+                                
+                                    <option value="unit cell">unit cell</option>
+                                
+                                    <option value="transverse contraction">transverse contraction</option>
+                                
+                                    <option value="first stellation">first stellation</option>
+                                
+                                    <option value="abc triblock copolymers">abc triblock copolymers</option>
+                                
+                                    <option value="cylindrical micelle">cylindrical micelle</option>
+                                
+                                    <option value="hamburger-like structures">hamburger-like structures</option>
+                                
+                                    <option value="janus particles">janus particles</option>
+                                
+                                    <option value="micelle">micelle</option>
+                                
+                                    <option value="ben-dentin bombing area">ben-dentin bombing area</option>
+                                
+                                    <option value="nanomechanical properties">nanomechanical properties</option>
+                                
+                                    <option value="bose tissue lamellae">bose tissue lamellae</option>
+                                
+                                    <option value="water-immersed tooth dentin">water-immersed tooth dentin</option>
+                                
+                                    <option value="nanoscale structure">nanoscale structure</option>
+                                
+                                    <option value="amphiphilic molecules">amphiphilic molecules</option>
+                                
+                                    <option value="protein-based systems">protein-based systems</option>
+                                
+                                    <option value="polymers">polymers</option>
+                                
+                                    <option value="shear flow">shear flow</option>
+                                
+                                    <option value="cylindrical micelles">cylindrical micelles</option>
+                                
+                                    <option value="globular structures">globular structures</option>
+                                
+                                    <option value="homogeneous solutions">homogeneous solutions</option>
+                                
+                                    <option value="hydrophilic domains">hydrophilic domains</option>
+                                
+                                    <option value="hydrophobic domain">hydrophobic domain</option>
+                                
+                                    <option value="spherical micelle">spherical micelle</option>
+                                
+                                    <option value="thin films">thin films</option>
+                                
+                                    <option value="nanoindentation mapping">nanoindentation mapping</option>
+                                
+                                    <option value="asteriscus">asteriscus</option>
+                                
+                                    <option value="lapillus">lapillus</option>
+                                
+                                    <option value="atomic force microscopy">atomic force microscopy</option>
+                                
+                                    <option value="individual bamboo fibers">individual bamboo fibers</option>
+                                
+                                    <option value="nanometer-sized cellulose ps">nanometer-sized cellulose ps</option>
+                                
+                                    <option value="protein fibers">protein fibers</option>
+                                
+                                    <option value="lotus leaf surface">lotus leaf surface</option>
+                                
+                                    <option value="superhydrophobic surfaces">superhydrophobic surfaces</option>
+                                
+                                    <option value="hierarchical sculpturing">hierarchical sculpturing</option>
+                                
+                                    <option value="bioinspired dental materials">bioinspired dental materials</option>
+                                
+                                    <option value="critical (j)-integral toughnesses">critical (j)-integral toughnesses</option>
+                                
+                                    <option value="freeze-casting">freeze-casting</option>
+                                
+                                    <option value="increased crack-growth resistance">increased crack-growth resistance</option>
+                                
+                                    <option value="nacre-like lamellar and brick-and-mortar architectures">nacre-like lamellar and brick-and-mortar architectures</option>
+                                
+                                    <option value="rising r-curve behavior">rising r-curve behavior</option>
+                                
+                                    <option value="zirconia polycrystals (zro₂)">zirconia polycrystals (zro₂)</option>
+                                
+                                    <option value="mineral phase">mineral phase</option>
+                                
+                                    <option value="protein phase">protein phase</option>
+                                
+                                    <option value="tooth tissue organization">tooth tissue organization</option>
+                                
+                                    <option value="soft dentinal zone">soft dentinal zone</option>
+                                
+                                    <option value="hydroxyapatitecrystallites">hydroxyapatitecrystallites</option>
+                                
+                                    <option value="hunter-schreger bands">hunter-schreger bands</option>
+                                
+                                    <option value="hydroxyapatite nanofibers">hydroxyapatite nanofibers</option>
+                                
+                                    <option value="enamel junction">enamel junction</option>
+                                
+                                    <option value="interprismatic matrix">interprismatic matrix</option>
+                                
+                                    <option value="lingual side">lingual side</option>
+                                
+                                    <option value="pigmentation">pigmentation</option>
+                                
+                                    <option value="human teeth">human teeth</option>
+                                
+                                    <option value="['water', 'proteins']">['water', 'proteins']</option>
+                                
+                                    <option value="hydroxyapatite">hydroxyapatite</option>
+                                
+                                    <option value="indentation testing">indentation testing</option>
+                                
+                                    <option value="nanometer-sized crystallites">nanometer-sized crystallites</option>
+                                
+                                    <option value="engineering materials">engineering materials</option>
+                                
+                                    <option value="simultaneously achieve strength and toughness">simultaneously achieve strength and toughness</option>
+                                
+                                    <option value="highly mineralized biological materials">highly mineralized biological materials</option>
+                                
+                                    <option value="weak interfaces">weak interfaces</option>
+                                
+                                    <option value="interfacial crack">interfacial crack</option>
+                                
+                                    <option value="intermediately mineralized biological materials">intermediately mineralized biological materials</option>
+                                
+                                    <option value="high toughness">high toughness</option>
+                                
+                                    <option value="understanding">understanding</option>
+                                
+                                    <option value="mechanical properties and structure">mechanical properties and structure</option>
+                                
+                                    <option value="materials with rising r-curve behavior">materials with rising r-curve behavior</option>
+                                
+                                    <option value="self-assembly phenomena">self-assembly phenomena</option>
+                                
+                                    <option value="biologically-induced nucleation">biologically-induced nucleation</option>
+                                
+                                    <option value="controlled crystal growth">controlled crystal growth</option>
+                                
+                                    <option value="limited information">limited information</option>
+                                
+                                    <option value="anisotropic plant-alike cell structures">anisotropic plant-alike cell structures</option>
+                                
+                                    <option value="practical manufacturing technique">practical manufacturing technique</option>
+                                
+                                    <option value="complex, three-dimensional pore structures">complex, three-dimensional pore structures</option>
+                                
+                                    <option value="ordered pore alignment">ordered pore alignment</option>
+                                
+                                    <option value="porous ceramics">porous ceramics</option>
+                                
+                                    <option value="resistance to crack propagation">resistance to crack propagation</option>
+                                
+                                    <option value="larger measured fracture toughness values">larger measured fracture toughness values</option>
+                                
+                                    <option value="hard ceramic phase">hard ceramic phase</option>
+                                
+                                    <option value="microlens arrays">microlens arrays</option>
+                                
+                                    <option value="laminated composite structure (rib)">laminated composite structure (rib)</option>
+                                
+                                    <option value="mg concentration">mg concentration</option>
+                                
+                                    <option value="enamel matrix proteins">enamel matrix proteins</option>
+                                
+                                    <option value="minor ion concentrations">minor ion concentrations</option>
+                                
+                                    <option value="fatty acids">fatty acids</option>
+                                
+                                    <option value="hexagonal hydroxyapatite">hexagonal hydroxyapatite</option>
+                                
+                                    <option value="biological apatite">biological apatite</option>
+                                
+                                    <option value="collagen-mineral nanocomposites">collagen-mineral nanocomposites</option>
+                                
+                                    <option value="nanoporous silica">nanoporous silica</option>
+                                
+                                    <option value="bones">bones</option>
+                                
+                                    <option value="length ratio">length ratio</option>
+                                
+                                    <option value="reinforcement material volume content">reinforcement material volume content</option>
+                                
+                                    <option value="thickness">thickness</option>
+                                
+                                    <option value="low stress concentrations">low stress concentrations</option>
+                                
+                                    <option value="maximum stress">maximum stress</option>
+                                
+                                    <option value="midrib">midrib</option>
+                                
+                                    <option value="natural materials lacking mineralization">natural materials lacking mineralization</option>
+                                
+                                    <option value="ifs">ifs</option>
+                                
+                                    <option value="collagen fibril arrangements">collagen fibril arrangements</option>
+                                
+                                    <option value="fish scale materials">fish scale materials</option>
+                                
+                                    <option value="compression curves">compression curves</option>
+                                
+                                    <option value="hard materials">hard materials</option>
+                                
+                                    <option value="rigidly architected lattices">rigidly architected lattices</option>
+                                
+                                    <option value="multiscale micro-nano fibrous structures">multiscale micro-nano fibrous structures</option>
+                                
+                                    <option value="nanotubes">nanotubes</option>
+                                
+                                    <option value="pva_gel">pva_gel</option>
+                                
+                                    <option value="standard ceramic suture system">standard ceramic suture system</option>
+                                
+                                    <option value="artificial nacre">artificial nacre</option>
+                                
+                                    <option value="interlayer adhesive">interlayer adhesive</option>
+                                
+                                    <option value="pre-stretching">pre-stretching</option>
+                                
+                                    <option value="wet-stretching">wet-stretching</option>
+                                
+                                    <option value="delamination failure">delamination failure</option>
+                                
+                                    <option value="r-curve behavior">r-curve behavior</option>
+                                
+                                    <option value="water_content">water_content</option>
+                                
+                                    <option value="cellulose microfibrils">cellulose microfibrils</option>
+                                
+                                    <option value="keratin fibrils">keratin fibrils</option>
+                                
+                                    <option value="protein filaments">protein filaments</option>
+                                
+                                    <option value="moisture level">moisture level</option>
+                                
+                                    <option value="covalent bonds">covalent bonds</option>
+                                
+                                    <option value="sea urchin spines">sea urchin spines</option>
+                                
+                                    <option value="ft-ir spectra">ft-ir spectra</option>
+                                
+                                    <option value="laminates">laminates</option>
+                                
+                                    <option value="brittle materials">brittle materials</option>
+                                
+                                    <option value="small bones">small bones</option>
+                                
+                                    <option value="wavy ts model">wavy ts model</option>
+                                
+                                    <option value="half-staggered cnt bundles">half-staggered cnt bundles</option>
+                                
+                                    <option value="load distribution">load distribution</option>
+                                
+                                    <option value="graphene">graphene</option>
+                                
+                                    <option value="layered alginate biopolymer">layered alginate biopolymer</option>
+                                
+                                    <option value="anti-trapezoidal geometries">anti-trapezoidal geometries</option>
+                                
+                                    <option value="rectangular geometries">rectangular geometries</option>
+                                
+                                    <option value="geometries">geometries</option>
+                                
+                                    <option value="trapezoidal geometries">trapezoidal geometries</option>
+                                
+                                    <option value="triangular geometries">triangular geometries</option>
+                                
+                                    <option value="reinforcements">reinforcements</option>
+                                
+                                    <option value="bio-inspired hybrid composite materials">bio-inspired hybrid composite materials</option>
+                                
+                                    <option value="wet samples">wet samples</option>
+                                
+                                    <option value="ud laminates">ud laminates</option>
+                                
+                                    <option value="soft materials">soft materials</option>
+                                
+                                    <option value="mechanical anisotropy">mechanical anisotropy</option>
+                                
+                                    <option value="interfacial adhesion zones">interfacial adhesion zones</option>
+                                
+                                    <option value="toughness (dehydrated)">toughness (dehydrated)</option>
+                                
+                                    <option value="toughness (hydrated)">toughness (hydrated)</option>
+                                
+                                    <option value="work to fracture (wtf)">work to fracture (wtf)</option>
+                                
+                                    <option value="go-ssebs nanocomposites">go-ssebs nanocomposites</option>
+                                
+                                    <option value="synthetic bioinspired materials (sbm1)">synthetic bioinspired materials (sbm1)</option>
+                                
+                                    <option value="dopamine (da)">dopamine (da)</option>
+                                
+                                    <option value="pcdo (10,12-pentacosadyn-1-ol)">pcdo (10,12-pentacosadyn-1-ol)</option>
+                                
+                                    <option value="hierarchy">hierarchy</option>
+                                
+                                    <option value="protein">protein</option>
+                                
+                                    <option value="calcium phosphate cements (cpcs)">calcium phosphate cements (cpcs)</option>
+                                
+                                    <option value="silica">silica</option>
+                                
+                                    <option value="superior mechanical properties">superior mechanical properties</option>
+                                
+                                    <option value="3d structural biological materials">3d structural biological materials</option>
+                                
+                                    <option value="heterogeneous reinforcing phase and high water content hydrogel matrix">heterogeneous reinforcing phase and high water content hydrogel matrix</option>
+                                
+                                    <option value="bottom layer">bottom layer</option>
+                                
+                                    <option value="interface-ii">interface-ii</option>
+                                
+                                    <option value="nanostructured artificial nacre">nanostructured artificial nacre</option>
+                                
+                                    <option value="gans">gans</option>
+                                
+                                    <option value="cnc/eg-ssaz6-upy6 nanocomposites">cnc/eg-ssaz6-upy6 nanocomposites</option>
+                                
+                                    <option value="energy dissipation mechanisms">energy dissipation mechanisms</option>
+                                
+                                    <option value="alginate fibers">alginate fibers</option>
+                                
+                                    <option value="alginate hydrogel">alginate hydrogel</option>
+                                
+                                    <option value="polyamphoteric hydrogel matrix">polyamphoteric hydrogel matrix</option>
+                                
+                                    <option value="parallel arrangement">parallel arrangement</option>
+                                
+                                    <option value="dual network hydrogels">dual network hydrogels</option>
+                                
+                                    <option value="material">material</option>
+                                
+                                    <option value="high density">high density</option>
+                                
+                                    <option value="4-aminophenol">4-aminophenol</option>
+                                
+                                    <option value="catalytic activity">catalytic activity</option>
+                                
+                                    <option value="4-nitrophenol">4-nitrophenol</option>
+                                
+                                    <option value="gold nanoparticles">gold nanoparticles</option>
+                                
+                                    <option value="anisotropic au nanoflowers">anisotropic au nanoflowers</option>
+                                
+                                    <option value="ultra-small aunps">ultra-small aunps</option>
+                                
+                                    <option value="twisted au nanorods">twisted au nanorods</option>
+                                
+                                    <option value="homopolymer segments">homopolymer segments</option>
+                                
+                                    <option value="conductive materials">conductive materials</option>
+                                
+                                    <option value="cyclic form">cyclic form</option>
+                                
+                                    <option value="cellulose hydrogels">cellulose hydrogels</option>
+                                
+                                    <option value="metal nanoparticles">metal nanoparticles</option>
+                                
+                                    <option value="eukaryotic cells">eukaryotic cells</option>
+                                
+                                    <option value="specific protein structures">specific protein structures</option>
+                                
+                                    <option value="microtubules">microtubules</option>
+                                
+                                    <option value="plasma membranes">plasma membranes</option>
+                                
+                                    <option value="thicker tissues">thicker tissues</option>
+                                
+                                    <option value="alginate matrices">alginate matrices</option>
+                                
+                                    <option value="bifunctional ions">bifunctional ions</option>
+                                
+                                    <option value="cellulose fibers">cellulose fibers</option>
+                                
+                                    <option value="polymer networks">polymer networks</option>
+                                
+                                    <option value="prestress">prestress</option>
+                                
+                                    <option value="moderately large strains">moderately large strains</option>
+                                
+                                    <option value="small forces">small forces</option>
+                                
+                                    <option value="silver nanoparticles">silver nanoparticles</option>
+                                
+                                    <option value="nn hydrogels (nested-network hydrogels)">nn hydrogels (nested-network hydrogels)</option>
+                                
+                                    <option value="conductive composite mixture">conductive composite mixture</option>
+                                
+                                    <option value="silver precursor">silver precursor</option>
+                                
+                                    <option value="silver ions">silver ions</option>
+                                
+                                    <option value="bacterial cell death">bacterial cell death</option>
+                                
+                                    <option value="dna damage">dna damage</option>
+                                
+                                    <option value="enhanced antibacterial properties">enhanced antibacterial properties</option>
+                                
+                                    <option value="enhanced osteogenic properties">enhanced osteogenic properties</option>
+                                
+                                    <option value="oxidative stress">oxidative stress</option>
+                                
+                                    <option value="protein denaturation">protein denaturation</option>
+                                
+                                    <option value="conductive composites">conductive composites</option>
+                                
+                                    <option value="2-3 nm">2-3 nm</option>
+                                
+                                    <option value="crystals">crystals</option>
+                                
+                                    <option value="30-80 nm">30-80 nm</option>
+                                
+                                    <option value="bone tissue fracture propagation">bone tissue fracture propagation</option>
+                                
+                                    <option value="less mineralized">less mineralized</option>
+                                
+                                    <option value="little collagen">little collagen</option>
+                                
+                                    <option value="collagen-poor matrix">collagen-poor matrix</option>
+                                
+                                    <option value="mineral matrix">mineral matrix</option>
+                                
+                                    <option value="cement-dentine junction">cement-dentine junction</option>
+                                
+                                    <option value="bone tissue organization">bone tissue organization</option>
+                                
+                                    <option value="staggered arrays">staggered arrays</option>
+                                
+                                    <option value="angular variations">angular variations</option>
+                                
+                                    <option value="alignment">alignment</option>
+                                
+                                    <option value="stress-strain relationship">stress-strain relationship</option>
+                                
+                                    <option value="collagen fibrils (lower shear rates)">collagen fibrils (lower shear rates)</option>
+                                
+                                    <option value="fss">fss</option>
+                                
+                                    <option value="distinct properties">distinct properties</option>
+                                
+                                    <option value="larger diameter">larger diameter</option>
+                                
+                                    <option value="small diameters">small diameters</option>
+                                
+                                    <option value="compliance">compliance</option>
+                                
+                                    <option value="energy dissipation">energy dissipation</option>
+                                
+                                    <option value="fracture">fracture</option>
+                                
+                                    <option value="sclera">sclera</option>
+                                
+                                    <option value="hybrid composite">hybrid composite</option>
+                                
+                                    <option value="behavior under tension">behavior under tension</option>
+                                
+                                    <option value="nanoscale deformation">nanoscale deformation</option>
+                                
+                                    <option value="myofibroblast phenotype">myofibroblast phenotype</option>
+                                
+                                    <option value="electrospinning">electrospinning</option>
+                                
+                                    <option value="magnetic alignment">magnetic alignment</option>
+                                
+                                    <option value="oriented flow casting">oriented flow casting</option>
+                                
+                                    <option value="hydrated precursors">hydrated precursors</option>
+                                
+                                    <option value="precise curvature">precise curvature</option>
+                                
+                                    <option value="interfibril sliding">interfibril sliding</option>
+                                
+                                    <option value="piezoelectricity">piezoelectricity</option>
+                                
+                                    <option value="shear piezoelectricity">shear piezoelectricity</option>
+                                
+                                    <option value="interferometric second harmonic generation">interferometric second harmonic generation</option>
+                                
+                                    <option value="natural material function">natural material function</option>
+                                
+                                    <option value="scanning probe microscopy">scanning probe microscopy</option>
+                                
+                                    <option value="alpha-helical proteins">alpha-helical proteins</option>
+                                
+                                    <option value="nanoscale mineralization approach">nanoscale mineralization approach</option>
+                                
+                                    <option value="amplitude">amplitude</option>
+                                
+                                    <option value="homogeneous elastic property">homogeneous elastic property</option>
+                                
+                                    <option value="intrinsic heterogeneity">intrinsic heterogeneity</option>
+                                
+                                    <option value="quality factor">quality factor</option>
+                                
+                                    <option value="scan shift">scan shift</option>
+                                
+                                    <option value="principal component analysis (pca)">principal component analysis (pca)</option>
+                                
+                                    <option value="collagen fibers (cf)">collagen fibers (cf)</option>
+                                
+                                    <option value="contribute">contribute</option>
+                                
+                                    <option value="extend">extend</option>
+                                
+                                    <option value="rosettes">rosettes</option>
+                                
+                                    <option value="spatial arrangement">spatial arrangement</option>
+                                
+                                    <option value="collagen-mineral matrix">collagen-mineral matrix</option>
+                                
+                                    <option value="concentric layers">concentric layers</option>
+                                
+                                    <option value="calcite crystals">calcite crystals</option>
+                                
+                                    <option value="in vitro">in vitro</option>
+                                
+                                    <option value="in vivo">in vivo</option>
+                                
+                                    <option value="band's event 'similar to'">band's event 'similar to'</option>
+                                
+                                    <option value="spiders">spiders</option>
+                                
+                                    <option value="hairy surfaces">hairy surfaces</option>
+                                
+                                    <option value="setae">setae</option>
+                                
+                                    <option value="thin layers">thin layers</option>
+                                
+                                    <option value="avian feather cortex">avian feather cortex</option>
+                                
+                                    <option value="misaligned fibers">misaligned fibers</option>
+                                
+                                    <option value="compliant composites">compliant composites</option>
+                                
+                                    <option value="critical compressive strain">critical compressive strain</option>
+                                
+                                    <option value="geological structures">geological structures</option>
+                                
+                                    <option value="interfacial shear stresses">interfacial shear stresses</option>
+                                
+                                    <option value="matrix thicknesses">matrix thicknesses</option>
+                                
+                                    <option value="period-doubling morphology">period-doubling morphology</option>
+                                
+                                    <option value="sinusoidal buckling shape">sinusoidal buckling shape</option>
+                                
+                                    <option value="soft matrix">soft matrix</option>
+                                
+                                    <option value="wrinkle wavelength">wrinkle wavelength</option>
+                                
+                                    <option value="chitin-protein fibers">chitin-protein fibers</option>
+                                
+                                    <option value="air spaces">air spaces</option>
+                                
+                                    <option value="cancellous bone">cancellous bone</option>
+                                
+                                    <option value="weight">weight</option>
+                                
+                                    <option value="bone fragility">bone fragility</option>
+                                
+                                    <option value="osteocytes">osteocytes</option>
+                                
+                                    <option value="aging">aging</option>
+                                
+                                    <option value="bone strength">bone strength</option>
+                                
+                                    <option value="distribution">distribution</option>
+                                
+                                    <option value="dts model">dts model</option>
+                                
+                                    <option value="structural units">structural units</option>
+                                
+                                    <option value="constituent phases">constituent phases</option>
+                                
+                                    <option value="granularshape">granularshape</option>
+                                
+                                    <option value="microcracking">microcracking</option>
+                                
+                                    <option value="paraformaldehyde">paraformaldehyde</option>
+                                
+                                    <option value="lacunar-canicular network">lacunar-canicular network</option>
+                                
+                                    <option value="osteoporosis">osteoporosis</option>
+                                
+                                    <option value="giop">giop</option>
+                                
+                                    <option value="higher fracture risk">higher fracture risk</option>
+                                
+                                    <option value="microarchitecture">microarchitecture</option>
+                                
+                                    <option value="reduced bone mass">reduced bone mass</option>
+                                
+                                    <option value="estrogen">estrogen</option>
+                                
+                                    <option value="parathyroid hormone">parathyroid hormone</option>
+                                
+                                    <option value="decreasing mineral content">decreasing mineral content</option>
+                                
+                                    <option value="increasing bone fragility">increasing bone fragility</option>
+                                
+                                    <option value="remodeling">remodeling</option>
+                                
+                                    <option value="shape">shape</option>
+                                
+                                    <option value="inorganic nanoparticles">inorganic nanoparticles</option>
+                                
+                                    <option value="external stimuli">external stimuli</option>
+                                
+                                    <option value="elastic moduli predictions for mineralized collagen fibrils">elastic moduli predictions for mineralized collagen fibrils</option>
+                                
+                                    <option value="histidine">histidine</option>
+                                
+                                    <option value="conventional homogenization-based micromechanical models">conventional homogenization-based micromechanical models</option>
+                                
+                                    <option value="hardparticles">hardparticles</option>
+                                
+                                    <option value="nanofibrils and nanoplatelets">nanofibrils and nanoplatelets</option>
+                                
+                                    <option value="slabs">slabs</option>
+                                
+                                    <option value="3d-ice">3d-ice</option>
+                                
+                                    <option value="graphene-based devices">graphene-based devices</option>
+                                
+                                    <option value="chen and yang">chen and yang</option>
+                                
+                                    <option value="homogeneity">homogeneity</option>
+                                
+                                    <option value="properties">properties</option>
+                                
+                                    <option value="ball mill-modified cellulose">ball mill-modified cellulose</option>
+                                
+                                    <option value="neat cellulose">neat cellulose</option>
+                                
+                                    <option value="solvent-modified cellulose">solvent-modified cellulose</option>
+                                
+                                    <option value="scalability">scalability</option>
+                                
+                                    <option value="animal species">animal species</option>
+                                
+                                    <option value="reinforcing_phase">reinforcing_phase</option>
+                                
+                                    <option value="lms">lms</option>
+                                
+                                    <option value="solid surfaces">solid surfaces</option>
+                                
+                                    <option value="spatial organization">spatial organization</option>
+                                
+                                    <option value="middle layer">middle layer</option>
+                                
+                                    <option value="cell differentiation">cell differentiation</option>
+                                
+                                    <option value="matrix deposition">matrix deposition</option>
+                                
+                                    <option value="top layer">top layer</option>
+                                
+                                    <option value="volume fraction">volume fraction</option>
+                                
+                                    <option value="buckling strength">buckling strength</option>
+                                
+                                    <option value="30%">30%</option>
+                                
+                                    <option value="approximately 3%">approximately 3%</option>
+                                
+                                    <option value="cortex">cortex</option>
+                                
+                                    <option value="extrafibrillar matrix (for cortical and trabecular bone) or extracellular bone matrix and lacunae (for extravascular bone material)">extrafibrillar matrix (for cortical and trabecular bone) or extracellular bone matrix and lacunae (for extravascular bone material)</option>
+                                
+                                    <option value="canalicular network">canalicular network</option>
+                                
+                                    <option value="spongy bone">spongy bone</option>
+                                
+                                    <option value="cohesive zone model">cohesive zone model</option>
+                                
+                                    <option value="constitutive relation">constitutive relation</option>
+                                
+                                    <option value="linear softening">linear softening</option>
+                                
+                                    <option value="finite element simulations">finite element simulations</option>
+                                
+                                    <option value="initial angles">initial angles</option>
+                                
+                                    <option value="symmetrical double tape peeling behavior">symmetrical double tape peeling behavior</option>
+                                
+                                    <option value="vertical loads">vertical loads</option>
+                                
+                                    <option value="abaqus/explicit commercial codes">abaqus/explicit commercial codes</option>
+                                
+                                    <option value="same boundary constraints">same boundary constraints</option>
+                                
+                                    <option value="accurate predictions">accurate predictions</option>
+                                
+                                    <option value="model">model</option>
+                                
+                                    <option value="validation">validation</option>
+                                
+                                    <option value="inner mts">inner mts</option>
+                                
+                                    <option value="outer mts">outer mts</option>
+                                
+                                    <option value="hierarchical peeling architectures">hierarchical peeling architectures</option>
+                                
+                                    <option value="adhesive force">adhesive force</option>
+                                
+                                    <option value="dissipated energy">dissipated energy</option>
+                                
+                                    <option value="highest">highest</option>
+                                
+                                    <option value="imposed displacement">imposed displacement</option>
+                                
+                                    <option value="lowest hierarchical level">lowest hierarchical level</option>
+                                
+                                    <option value="self-similar branching">self-similar branching</option>
+                                
+                                    <option value="stress concentrations">stress concentrations</option>
+                                
+                                    <option value="tape delamination">tape delamination</option>
+                                
+                                    <option value="simulations">simulations</option>
+                                
+                                    <option value="analytical calculations">analytical calculations</option>
+                                
+                                    <option value="larger values">larger values</option>
+                                
+                                    <option value="delaminated tape length">delaminated tape length</option>
+                                
+                                    <option value="cad-cam programs">cad-cam programs</option>
+                                
+                                    <option value="angles">angles</option>
+                                
+                                    <option value="delamination forces">delamination forces</option>
+                                
+                                    <option value="idealized orb-web model">idealized orb-web model</option>
+                                
+                                    <option value="charmm-19 force field">charmm-19 force field</option>
+                                
+                                    <option value="implicit solvation">implicit solvation</option>
+                                
+                                    <option value="percolation network model">percolation network model</option>
+                                
+                                    <option value="equation (5)">equation (5)</option>
+                                
+                                    <option value="characteristic length">characteristic length</option>
+                                
+                                    <option value="geometrical relation">geometrical relation</option>
+                                
+                                    <option value="lame constants">lame constants</option>
+                                
+                                    <option value="non-linear hyperelasticity">non-linear hyperelasticity</option>
+                                
+                                    <option value="individual cellular contributions">individual cellular contributions</option>
+                                
+                                    <option value="silicon wollastonite scaffolds">silicon wollastonite scaffolds</option>
+                                
+                                    <option value="dry claw endocuticle">dry claw endocuticle</option>
+                                
+                                    <option value="beam">beam</option>
+                                
+                                    <option value="dlc films">dlc films</option>
+                                
+                                    <option value="equilibrium time">equilibrium time</option>
+                                
+                                    <option value="hdt films">hdt films</option>
+                                
+                                    <option value="pfpe films">pfpe films</option>
+                                
+                                    <option value="rest time">rest time</option>
+                                
+                                    <option value="single seta">single seta</option>
+                                
+                                    <option value="simulation">simulation</option>
+                                
+                                    <option value="ligaments between tubercle pores">ligaments between tubercle pores</option>
+                                
+                                    <option value="cholla cactus">cholla cactus</option>
+                                
+                                    <option value="load-bearing ability under large deformations">load-bearing ability under large deformations</option>
+                                
+                                    <option value="behavior">behavior</option>
+                                
+                                    <option value="high strength">high strength</option>
+                                
+                                    <option value="lennard-jones potential">lennard-jones potential</option>
+                                
+                                    <option value="mechanical properties of viruses">mechanical properties of viruses</option>
+                                
+                                    <option value="impregnation">impregnation</option>
+                                
+                                    <option value="crosslinking density">crosslinking density</option>
+                                
+                                    <option value="homogeneous 3d hybrid network">homogeneous 3d hybrid network</option>
+                                
+                                    <option value="pei (polyethylene-mine)">pei (polyethylene-mine)</option>
+                                
+                                    <option value="electrical conductivity">electrical conductivity</option>
+                                
+                                    <option value="new bone tissue formation">new bone tissue formation</option>
+                                
+                                    <option value="osteoblastic differentiation">osteoblastic differentiation</option>
+                                
+                                    <option value="tensile strength">tensile strength</option>
+                                
+                                    <option value="thermal conductivity">thermal conductivity</option>
+                                
+                                    <option value="shape recovery force">shape recovery force</option>
+                                
+                                    <option value="shape recovery speed">shape recovery speed</option>
+                                
+                                    <option value="cnt shells">cnt shells</option>
+                                
+                                    <option value="carbon bioscaffolds">carbon bioscaffolds</option>
+                                
+                                    <option value="core-shell composite beam">core-shell composite beam</option>
+                                
+                                    <option value="effective diameter">effective diameter</option>
+                                
+                                    <option value="iscontainedin">iscontainedin</option>
+                                
+                                    <option value="tension test peak stresses">tension test peak stresses</option>
+                                
+                                    <option value="initial virial stress">initial virial stress</option>
+                                
+                                    <option value="slip-stick behavior">slip-stick behavior</option>
+                                
+                                    <option value="lx">lx</option>
+                                
+                                    <option value="crosslinking">crosslinking</option>
+                                
+                                    <option value="carbon nanotube bundles (cnts)">carbon nanotube bundles (cnts)</option>
+                                
+                                    <option value="carbon nanotubes">carbon nanotubes</option>
+                                
+                                    <option value="gum bandogoi">gum bandogoi</option>
+                                
+                                    <option value="citric_acid">citric_acid</option>
+                                
+                                    <option value="longer crosslinks">longer crosslinks</option>
+                                
+                                    <option value="crack bridging">crack bridging</option>
+                                
+                                    <option value="disparate material properties">disparate material properties</option>
+                                
+                                    <option value="biofabrication technologies">biofabrication technologies</option>
+                                
+                                    <option value="betamate 1044">betamate 1044</option>
+                                
+                                    <option value="epoxyresin">epoxyresin</option>
+                                
+                                    <option value="binding energy">binding energy</option>
+                                
+                                    <option value="hydroxyproline">hydroxyproline</option>
+                                
+                                    <option value="production simulations">production simulations</option>
+                                
+                                    <option value="solvent">solvent</option>
+                                
+                                    <option value="terminal residues">terminal residues</option>
+                                
+                                    <option value="yield stress">yield stress</option>
+                                
+                                    <option value="enamel-like morphology">enamel-like morphology</option>
+                                
+                                    <option value="failure probability">failure probability</option>
+                                
+                                    <option value="scale parameter">scale parameter</option>
+                                
+                                    <option value="shape parameter">shape parameter</option>
+                                
+                                    <option value="statistical model">statistical model</option>
+                                
+                                    <option value="atomic structure">atomic structure</option>
+                                
+                                    <option value="electronic materials">electronic materials</option>
+                                
+                                    <option value="materials for energy storage">materials for energy storage</option>
+                                
+                                    <option value="material characterization">material characterization</option>
+                                
+                                    <option value="optical materials">optical materials</option>
+                                
+                                    <option value="structural properties">structural properties</option>
+                                
+                                    <option value="coefficient of restitution (cor)">coefficient of restitution (cor)</option>
+                                
+                                    <option value="compressive strains">compressive strains</option>
+                                
+                                    <option value="dry conditions">dry conditions</option>
+                                
+                                    <option value="hydrated conditions">hydrated conditions</option>
+                                
+                                    <option value="inelastic deformations">inelastic deformations</option>
+                                
+                                    <option value="lateral expansion">lateral expansion</option>
+                                
+                                    <option value="shear resistance">shear resistance</option>
+                                
+                                    <option value="transverse internal compression">transverse internal compression</option>
+                                
+                                    <option value="chain">chain</option>
+                                
+                                    <option value="total strain">total strain</option>
+                                
+                                    <option value="memory devices">memory devices</option>
+                                
+                                    <option value="lateral dilation">lateral dilation</option>
+                                
+                                    <option value="pull-out tests">pull-out tests</option>
+                                
+                                    <option value="dye removal">dye removal</option>
+                                
+                                    <option value="zn-st-mocp/nfe3o4 composite">zn-st-mocp/nfe3o4 composite</option>
+                                
+                                    <option value="fe3o4 nanoparticles">fe3o4 nanoparticles</option>
+                                
+                                    <option value="hierarchical porous structure">hierarchical porous structure</option>
+                                
+                                    <option value="size of fe3o4 nanoparticles">size of fe3o4 nanoparticles</option>
+                                
+                                    <option value="carbonized material">carbonized material</option>
+                                
+                                    <option value="specific surface area">specific surface area</option>
+                                
+                                    <option value="complex 3d anatomical shapes">complex 3d anatomical shapes</option>
+                                
+                                    <option value="desired mass transport properties">desired mass transport properties</option>
+                                
+                                    <option value="desirable mechanical properties">desirable mechanical properties</option>
+                                
+                                    <option value="concentrated ha slurry">concentrated ha slurry</option>
+                                
+                                    <option value="ha-stabilized emulsion inks">ha-stabilized emulsion inks</option>
+                                
+                                    <option value="magnetic iron oxide nanoparticles">magnetic iron oxide nanoparticles</option>
+                                
+                                    <option value="methylene blue">methylene blue</option>
+                                
+                                    <option value="halylate">halylate</option>
+                                
+                                    <option value="sodium silicate solution">sodium silicate solution</option>
+                                
+                                    <option value="micron channels">micron channels</option>
+                                
+                                    <option value="micron-scale channels">micron-scale channels</option>
+                                
+                                    <option value="nfe3o4 nanoparticles">nfe3o4 nanoparticles</option>
+                                
+                                    <option value="nfe3o4-induced sub-micron/nanopores">nfe3o4-induced sub-micron/nanopores</option>
+                                
+                                    <option value="starch">starch</option>
+                                
+                                    <option value="opv substrates">opv substrates</option>
+                                
+                                    <option value="xanthan gum">xanthan gum</option>
+                                
+                                    <option value="starch-derived carbon source">starch-derived carbon source</option>
+                                
+                                    <option value="starch-based composite material">starch-based composite material</option>
+                                
+                                    <option value="sub-micron/nanoscale pores">sub-micron/nanoscale pores</option>
+                                
+                                    <option value="water treatment">water treatment</option>
+                                
+                                    <option value="wood-based materials">wood-based materials</option>
+                                
+                                    <option value="water purification">water purification</option>
+                                
+                                    <option value="anisotropy">anisotropy</option>
+                                
+                                    <option value="intricate hygroscopic movements">intricate hygroscopic movements</option>
+                                
+                                    <option value="swelling">swelling</option>
+                                
+                                    <option value="bone (longitudinal direction)">bone (longitudinal direction)</option>
+                                
+                                    <option value="bony plates">bony plates</option>
+                                
+                                    <option value="myocardial_tissue">myocardial_tissue</option>
+                                
+                                    <option value="anisotropic mechanical structures">anisotropic mechanical structures</option>
+                                
+                                    <option value="preferential orientation of cells">preferential orientation of cells</option>
+                                
+                                    <option value="cell wall material">cell wall material</option>
+                                
+                                    <option value="interconnected t-junctions between cells">interconnected t-junctions between cells</option>
+                                
+                                    <option value="bilayer construct">bilayer construct</option>
+                                
+                                    <option value="deformation patterns">deformation patterns</option>
+                                
+                                    <option value="reinforcing compliant gels with stiff nanofibrils or nanotubes">reinforcing compliant gels with stiff nanofibrils or nanotubes</option>
+                                
+                                    <option value="cellular structures">cellular structures</option>
+                                
+                                    <option value="mechanical stability">mechanical stability</option>
+                                
+                                    <option value="protection for inner organelles">protection for inner organelles</option>
+                                
+                                    <option value="supportive framework">supportive framework</option>
+                                
+                                    <option value="cellular cytoskeleton">cellular cytoskeleton</option>
+                                
+                                    <option value="variation">variation</option>
+                                
+                                    <option value="coconut shells (young)">coconut shells (young)</option>
+                                
+                                    <option value="differing orientation">differing orientation</option>
+                                
+                                    <option value="randomly oriented">randomly oriented</option>
+                                
+                                    <option value="unidirectional orientation">unidirectional orientation</option>
+                                
+                                    <option value="distinguishing three-dimensional arrangement patterns">distinguishing three-dimensional arrangement patterns</option>
+                                
+                                    <option value="intact plant cell walls">intact plant cell walls</option>
+                                
+                                    <option value="traditional methods">traditional methods</option>
+                                
+                                    <option value="vibrational sum-frequency generation (sfg) spectroscopy">vibrational sum-frequency generation (sfg) spectroscopy</option>
+                                
+                                    <option value="reorientation">reorientation</option>
+                                
+                                    <option value="rotation">rotation</option>
+                                
+                                    <option value="water transport properties">water transport properties</option>
+                                
+                                    <option value="maximum strain">maximum strain</option>
+                                
+                                    <option value="phase transformations">phase transformations</option>
+                                
+                                    <option value="cell wall middle lamella">cell wall middle lamella</option>
+                                
+                                    <option value="fratztz-elbaum-burgert model">fratztz-elbaum-burgert model</option>
+                                
+                                    <option value="hydroelasticity">hydroelasticity</option>
+                                
+                                    <option value="longitudinal axis">longitudinal axis</option>
+                                
+                                    <option value="longitudinal dimension shrinks">longitudinal dimension shrinks</option>
+                                
+                                    <option value="relative modulus">relative modulus</option>
+                                
+                                    <option value="stiff fibrils">stiff fibrils</option>
+                                
+                                    <option value="hydrogel actuation through differential hydration-induced swelling or shrinking">hydrogel actuation through differential hydration-induced swelling or shrinking</option>
+                                
+                                    <option value="growth">growth</option>
+                                
+                                    <option value="prey capture">prey capture</option>
+                                
+                                    <option value="seed dispersal">seed dispersal</option>
+                                
+                                    <option value="self-defense">self-defense</option>
+                                
+                                    <option value="opening patterns">opening patterns</option>
+                                
+                                    <option value="epe-lps sensor">epe-lps sensor</option>
+                                
+                                    <option value="endothelial (ec) cytoskeleton">endothelial (ec) cytoskeleton</option>
+                                
+                                    <option value="inter-hydroxyapatite fiber interactions">inter-hydroxyapatite fiber interactions</option>
+                                
+                                    <option value="task axis">task axis</option>
+                                
+                                    <option value="nanoparticle">nanoparticle</option>
+                                
+                                    <option value="mineral bridges">mineral bridges</option>
+                                
+                                    <option value="amorphous silica">amorphous silica</option>
+                                
+                                    <option value="osteoblasts">osteoblasts</option>
+                                
+                                    <option value="coi fibrils">coi fibrils</option>
+                                
+                                    <option value="ha crystals">ha crystals</option>
+                                
+                                    <option value="myofibrils">myofibrils</option>
+                                
+                                    <option value="brillouin spectroscopy">brillouin spectroscopy</option>
+                                
+                                    <option value="bending-dominated structures">bending-dominated structures</option>
+                                
+                                    <option value="stretching-dominated structures">stretching-dominated structures</option>
+                                
+                                    <option value="single trabecula testing">single trabecula testing</option>
+                                
+                                    <option value="trabecular bone microstructure">trabecular bone microstructure</option>
+                                
+                                    <option value="fluid flow">fluid flow</option>
+                                
+                                    <option value="mechanically and biologically">mechanically and biologically</option>
+                                
+                                    <option value="theoretical studies">theoretical studies</option>
+                                
+                                    <option value="fluid flow critical points">fluid flow critical points</option>
+                                
+                                    <option value="plla/pcl fibrous membranes">plla/pcl fibrous membranes</option>
+                                
+                                    <option value="formulation parameters">formulation parameters</option>
+                                
+                                    <option value="energy">energy</option>
+                                
+                                    <option value="hierarchically porous structures">hierarchically porous structures</option>
+                                
+                                    <option value="aerogels">aerogels</option>
+                                
+                                    <option value="mofs">mofs</option>
+                                
+                                    <option value="conventional scaffolds">conventional scaffolds</option>
+                                
+                                    <option value="3d bioprinting">3d bioprinting</option>
+                                
+                                    <option value="cofs">cofs</option>
+                                
+                                    <option value="sea urchin spine stereom">sea urchin spine stereom</option>
+                                
+                                    <option value="energy absorption">energy absorption</option>
+                                
+                                    <option value="low weight properties">low weight properties</option>
+                                
+                                    <option value="approximate fractals">approximate fractals</option>
+                                
+                                    <option value="natural structures">natural structures</option>
+                                
+                                    <option value="architects">architects</option>
+                                
+                                    <option value="engineers">engineers</option>
+                                
+                                    <option value="materials scientists">materials scientists</option>
+                                
+                                    <option value="ct">ct</option>
+                                
+                                    <option value="hard tissues">hard tissues</option>
+                                
+                                    <option value="fractals">fractals</option>
+                                
+                                    <option value="complexity">complexity</option>
+                                
+                                    <option value="complex organisms">complex organisms</option>
+                                
+                                    <option value="biomedical engineering">biomedical engineering</option>
+                                
+                                    <option value="microorganisms">microorganisms</option>
+                                
+                                    <option value="surfaces of organs and tissues">surfaces of organs and tissues</option>
+                                
+                                    <option value="nmr">nmr</option>
+                                
+                                    <option value="soft tissues">soft tissues</option>
+                                
+                                    <option value="rapid prototyping technologies">rapid prototyping technologies</option>
+                                
+                                    <option value="biodevices">biodevices</option>
+                                
+                                    <option value="biomimetic approaches">biomimetic approaches</option>
+                                
+                                    <option value="implants">implants</option>
+                                
+                                    <option value="prostheses">prostheses</option>
+                                
+                                    <option value="particulate leaching">particulate leaching</option>
+                                
+                                    <option value="natural materials">natural materials</option>
+                                
+                                    <option value="indeterminacy">indeterminacy</option>
+                                
+                                    <option value="robustness">robustness</option>
+                                
+                                    <option value="structural characterization methods">structural characterization methods</option>
+                                
+                                    <option value="elastin">elastin</option>
+                                
+                                    <option value="neural network-based constitutive model (nncm)">neural network-based constitutive model (nncm)</option>
+                                
+                                    <option value="x-rays">x-rays</option>
+                                
+                                    <option value="minimal bone regeneration">minimal bone regeneration</option>
+                                
+                                    <option value="hard segments">hard segments</option>
+                                
+                                    <option value="mooney-rivlin model">mooney-rivlin model</option>
+                                
+                                    <option value="natural systems">natural systems</option>
+                                
+                                    <option value="cell-cell junctions">cell-cell junctions</option>
+                                
+                                    <option value="nuclear lamina">nuclear lamina</option>
+                                
+                                    <option value="cellular matrix adhesions">cellular matrix adhesions</option>
+                                
+                                    <option value="contractile filaments">contractile filaments</option>
+                                
+                                    <option value="energy minimization sub-step">energy minimization sub-step</option>
+                                
+                                    <option value="experimental data">experimental data</option>
+                                
+                                    <option value="continuum electrostatics models">continuum electrostatics models</option>
+                                
+                                    <option value="fluid flow critical point determination method">fluid flow critical point determination method</option>
+                                
+                                    <option value="hfbm_approach">hfbm_approach</option>
+                                
+                                    <option value="extracellular matrix tethers">extracellular matrix tethers</option>
+                                
+                                    <option value="flexible fitting method">flexible fitting method</option>
+                                
+                                    <option value="hybrid methods">hybrid methods</option>
+                                
+                                    <option value="mechanical loads">mechanical loads</option>
+                                
+                                    <option value="cell surface adhesions">cell surface adhesions</option>
+                                
+                                    <option value="cell">cell</option>
+                                
+                                    <option value="additive manufacturing materials">additive manufacturing materials</option>
+                                
+                                    <option value="spider cuticular tools">spider cuticular tools</option>
+                                
+                                    <option value="molecular dynamics simulations">molecular dynamics simulations</option>
+                                
+                                    <option value="nanoscale self-assembly">nanoscale self-assembly</option>
+                                
+                                    <option value="conventional charmm model">conventional charmm model</option>
+                                
+                                    <option value="tropocollagen molecule">tropocollagen molecule</option>
+                                
+                                    <option value="hierarchical bell model">hierarchical bell model</option>
+                                
+                                    <option value="materials modeling">materials modeling</option>
+                                
+                                    <option value="structural components">structural components</option>
+                                
+                                    <option value="elephant ivory dentin">elephant ivory dentin</option>
+                                
+                                    <option value="tensegrity principles">tensegrity principles</option>
+                                
+                                    <option value="individual molecules">individual molecules</option>
+                                
+                                    <option value="multi-molecular complexes">multi-molecular complexes</option>
+                                
+                                    <option value="larger axoneme">larger axoneme</option>
+                                
+                                    <option value="lcp filaments">lcp filaments</option>
+                                
+                                    <option value="cellular components">cellular components</option>
+                                
+                                    <option value="afm probe">afm probe</option>
+                                
+                                    <option value="actin filaments">actin filaments</option>
+                                
+                                    <option value="complex biological processes">complex biological processes</option>
+                                
+                                    <option value="functional focal adhesion complexes">functional focal adhesion complexes</option>
+                                
+                                    <option value="microtubule filaments">microtubule filaments</option>
+                                
+                                    <option value="myosin ii motors">myosin ii motors</option>
+                                
+                                    <option value="stress fibers (myosin ii filaments)">stress fibers (myosin ii filaments)</option>
+                                
+                                    <option value="e-spin fibers">e-spin fibers</option>
+                                
+                                    <option value="incubation">incubation</option>
+                                
+                                    <option value="microscopy for visualizing cells">microscopy for visualizing cells</option>
+                                
+                                    <option value="new plate">new plate</option>
+                                
+                                    <option value="phalloidin">phalloidin</option>
+                                
+                                    <option value="vinculin monoclonal antibody">vinculin monoclonal antibody</option>
+                                
+                                    <option value="biomimetic substrates with nanoscale and microsized features">biomimetic substrates with nanoscale and microsized features</option>
+                                
+                                    <option value="natural extracellular matrix resembling collagen topography">natural extracellular matrix resembling collagen topography</option>
+                                
+                                    <option value="cellular hierarchy">cellular hierarchy</option>
+                                
+                                    <option value="cell viability">cell viability</option>
+                                
+                                    <option value="cell morphology">cell morphology</option>
+                                
+                                    <option value="fitc-phalloidin">fitc-phalloidin</option>
+                                
+                                    <option value="scaffold material">scaffold material</option>
+                                
+                                    <option value="fluid shear stress (fss)">fluid shear stress (fss)</option>
+                                
+                                    <option value="macroscopic strain">macroscopic strain</option>
+                                
+                                    <option value="cellular structure">cellular structure</option>
+                                
+                                    <option value="afm measurements">afm measurements</option>
+                                
+                                    <option value="force-indentation curves">force-indentation curves</option>
+                                
+                                    <option value="functional barrier formation">functional barrier formation</option>
+                                
+                                    <option value="axial constraint">axial constraint</option>
+                                
+                                    <option value="torsion">torsion</option>
+                                
+                                    <option value="unconstrained">unconstrained</option>
+                                
+                                    <option value="tensile deformation">tensile deformation</option>
+                                
+                                    <option value="celltrace(tm) cfse">celltrace(tm) cfse</option>
+                                
+                                    <option value="injectablehydrogels">injectablehydrogels</option>
+                                
+                                    <option value="tissue engineering scaffolds">tissue engineering scaffolds</option>
+                                
+                                    <option value="direct cryogenic ting sff method">direct cryogenic ting sff method</option>
+                                
+                                    <option value="electrospinning processes">electrospinning processes</option>
+                                
+                                    <option value="freeze-drying">freeze-drying</option>
+                                
+                                    <option value="highly porous collagen strands">highly porous collagen strands</option>
+                                
+                                    <option value="diverse functions">diverse functions</option>
+                                
+                                    <option value="nanocrystals">nanocrystals</option>
+                                
+                                    <option value="alpha-helices">alpha-helices</option>
+                                
+                                    <option value="bilinear force-extension behavior">bilinear force-extension behavior</option>
+                                
+                                    <option value="decellularized scaffold">decellularized scaffold</option>
+                                
+                                    <option value="material point method (mpm)">material point method (mpm)</option>
+                                
+                                    <option value="adhesive">adhesive</option>
+                                
+                                    <option value="cell seeding material">cell seeding material</option>
+                                
+                                    <option value="collagenous biomaterial">collagenous biomaterial</option>
+                                
+                                    <option value="skin regeneration">skin regeneration</option>
+                                
+                                    <option value="wangs' et al's small-diameter vascular scaffolds">wangs' et al's small-diameter vascular scaffolds</option>
+                                
+                                    <option value="natural polyamides">natural polyamides</option>
+                                
+                                    <option value="biological integration">biological integration</option>
+                                
+                                    <option value="biomimetic injectable hydrogels">biomimetic injectable hydrogels</option>
+                                
+                                    <option value="blending">blending</option>
+                                
+                                    <option value="chitosan-collagen composite hydrogels">chitosan-collagen composite hydrogels</option>
+                                
+                                    <option value="cross-linking">cross-linking</option>
+                                
+                                    <option value="environmentally induced degradation">environmentally induced degradation</option>
+                                
+                                    <option value="enzymatic degradation">enzymatic degradation</option>
+                                
+                                    <option value="membranes and films">membranes and films</option>
+                                
+                                    <option value="micro- and nanospheres">micro- and nanospheres</option>
+                                
+                                    <option value="tissue being repaired">tissue being repaired</option>
+                                
+                                    <option value="polymeric agents">polymeric agents</option>
+                                
+                                    <option value="collagenfibril">collagenfibril</option>
+                                
+                                    <option value="collagen's mechanical properties">collagen's mechanical properties</option>
+                                
+                                    <option value="x-ray diffraction">x-ray diffraction</option>
+                                
+                                    <option value="thc">thc</option>
+                                
+                                    <option value="triple-helical domain">triple-helical domain</option>
+                                
+                                    <option value="porcupine fish spines">porcupine fish spines</option>
+                                
+                                    <option value="complex hierarchical microstructure">complex hierarchical microstructure</option>
+                                
+                                    <option value="connective tissue">connective tissue</option>
+                                
+                                    <option value="hierarchical microstructures">hierarchical microstructures</option>
+                                
+                                    <option value="rough topography">rough topography</option>
+                                
+                                    <option value="weak piezoresponse">weak piezoresponse</option>
+                                
+                                    <option value="essential excitation">essential excitation</option>
+                                
+                                    <option value="extracellular matrix proteins">extracellular matrix proteins</option>
+                                
+                                    <option value="submicron structures">submicron structures</option>
+                                
+                                    <option value="0.01 m hcl">0.01 m hcl</option>
+                                
+                                    <option value="8:1:1 ratio of collagen, phosphate-buffered saline (pbs), and sodium hydroxide (naoh)">8:1:1 ratio of collagen, phosphate-buffered saline (pbs), and sodium hydroxide (naoh)</option>
+                                
+                                    <option value="bovine dermal collagen">bovine dermal collagen</option>
+                                
+                                    <option value="higher naoh concentration">higher naoh concentration</option>
+                                
+                                    <option value="neutralization">neutralization</option>
+                                
+                                    <option value="stabilized collagen fibers">stabilized collagen fibers</option>
+                                
+                                    <option value="sub-fibril alignment">sub-fibril alignment</option>
+                                
+                                    <option value="high-performance materials with nacre-like structure">high-performance materials with nacre-like structure</option>
+                                
+                                    <option value="bird bones">bird bones</option>
+                                
+                                    <option value="cohesive traction-separation relationship">cohesive traction-separation relationship</option>
+                                
+                                    <option value="biological activity">biological activity</option>
+                                
+                                    <option value="carbodiimide">carbodiimide</option>
+                                
+                                    <option value="crosslinking methods">crosslinking methods</option>
+                                
+                                    <option value="genipin">genipin</option>
+                                
+                                    <option value="glutaraldehyde">glutaraldehyde</option>
+                                
+                                    <option value="material modification">material modification</option>
+                                
+                                    <option value="poor physical and chemical properties">poor physical and chemical properties</option>
+                                
+                                    <option value="structural proteins">structural proteins</option>
+                                
+                                    <option value="stiff triple-helix structure">stiff triple-helix structure</option>
+                                
+                                    <option value="image">image</option>
+                                
+                                    <option value="hydrophobic surface regions">hydrophobic surface regions</option>
+                                
+                                    <option value="synergistic interfacial interactions">synergistic interfacial interactions</option>
+                                
+                                    <option value="well-ordered self-assembled morphologies">well-ordered self-assembled morphologies</option>
+                                
+                                    <option value="cartilage">cartilage</option>
+                                
+                                    <option value="collagen cross-links">collagen cross-links</option>
+                                
+                                    <option value="connective tissues">connective tissues</option>
+                                
+                                    <option value="laminins">laminins</option>
+                                
+                                    <option value="ductility">ductility</option>
+                                
+                                    <option value="soft tissue engineering applications">soft tissue engineering applications</option>
+                                
+                                    <option value="collagen derivatives">collagen derivatives</option>
+                                
+                                    <option value="methacrylic anhydride">methacrylic anhydride</option>
+                                
+                                    <option value="bioactive components">bioactive components</option>
+                                
+                                    <option value="ceramics">ceramics</option>
+                                
+                                    <option value="lamellar spacing">lamellar spacing</option>
+                                
+                                    <option value="pore structure">pore structure</option>
+                                
+                                    <option value="cs hydrogel">cs hydrogel</option>
+                                
+                                    <option value="rgd sequence">rgd sequence</option>
+                                
+                                    <option value="nanofiber shish kebab (nfsk) structure">nanofiber shish kebab (nfsk) structure</option>
+                                
+                                    <option value="water-based alumina suspension">water-based alumina suspension</option>
+                                
+                                    <option value="cellular pore morphology">cellular pore morphology</option>
+                                
+                                    <option value="reducing agents">reducing agents</option>
+                                
+                                    <option value="wound healing dressings">wound healing dressings</option>
+                                
+                                    <option value="hairy shell cuticle">hairy shell cuticle</option>
+                                
+                                    <option value="dorsal region">dorsal region</option>
+                                
+                                    <option value="middle region">middle region</option>
+                                
+                                    <option value="ventral region">ventral region</option>
+                                
+                                    <option value="coiled coils">coiled coils</option>
+                                
+                                    <option value="keratinized cells">keratinized cells</option>
+                                
+                                    <option value="horse hoof wall">horse hoof wall</option>
+                                
+                                    <option value="alkaline hydrolysis">alkaline hydrolysis</option>
+                                
+                                    <option value="enzymatic hydrolysis">enzymatic hydrolysis</option>
+                                
+                                    <option value="value-added products">value-added products</option>
+                                
+                                    <option value="biodegradable hydrogels">biodegradable hydrogels</option>
+                                
+                                    <option value="multichannel structures">multichannel structures</option>
+                                
+                                    <option value="tissue regeneration and growth promotion">tissue regeneration and growth promotion</option>
+                                
+                                    <option value="combination of natural biomaterials and synthetic polymers">combination of natural biomaterials and synthetic polymers</option>
+                                
+                                    <option value="interpenetrating networks (ipn)">interpenetrating networks (ipn)</option>
+                                
+                                    <option value="multiphasic strategies">multiphasic strategies</option>
+                                
+                                    <option value="multistructured and hierarchical strategies">multistructured and hierarchical strategies</option>
+                                
+                                    <option value="natural biomaterials">natural biomaterials</option>
+                                
+                                    <option value="reproducing native architecture and function of cartilage">reproducing native architecture and function of cartilage</option>
+                                
+                                    <option value="cell growth">cell growth</option>
+                                
+                                    <option value="nanomaterials">nanomaterials</option>
+                                
+                                    <option value="natural tissues">natural tissues</option>
+                                
+                                    <option value="polymer chains components">polymer chains components</option>
+                                
+                                    <option value="carbon-based nanomaterials">carbon-based nanomaterials</option>
+                                
+                                    <option value="peo">peo</option>
+                                
+                                    <option value="woodpecker skull">woodpecker skull</option>
+                                
+                                    <option value="interface acting as a barrier to ultrasonic vibrations">interface acting as a barrier to ultrasonic vibrations</option>
+                                
+                                    <option value="gradient fiber network">gradient fiber network</option>
+                                
+                                    <option value="keratin production">keratin production</option>
+                                
+                                    <option value="electroless deposition">electroless deposition</option>
+                                
+                                    <option value="artificial joints">artificial joints</option>
+                                
+                                    <option value="ultrahigh molecular weight polyethylene">ultrahigh molecular weight polyethylene</option>
+                                
+                                    <option value="colloidal interactions">colloidal interactions</option>
+                                
+                                    <option value="inflammation">inflammation</option>
+                                
+                                    <option value="frequency detection">frequency detection</option>
+                                
+                                    <option value="animals">animals</option>
+                                
+                                    <option value="atomic force microscope cantilevers">atomic force microscope cantilevers</option>
+                                
+                                    <option value="basilar_membrane">basilar_membrane</option>
+                                
+                                    <option value="catalytic processes">catalytic processes</option>
+                                
+                                    <option value="frequency domains">frequency domains</option>
+                                
+                                    <option value="insect-inspired ir sensors">insect-inspired ir sensors</option>
+                                
+                                    <option value="neural codes">neural codes</option>
+                                
+                                    <option value="structural engineering">structural engineering</option>
+                                
+                                    <option value="3d-printing">3d-printing</option>
+                                
+                                    <option value="bionics">bionics</option>
+                                
+                                    <option value="biotemplating approach">biotemplating approach</option>
+                                
+                                    <option value="ink formulation">ink formulation</option>
+                                
+                                    <option value="electrode fabrication">electrode fabrication</option>
+                                
+                                    <option value="programmable techniques">programmable techniques</option>
+                                
+                                    <option value="materials science research">materials science research</option>
+                                
+                                    <option value="structure-process-property paradigms">structure-process-property paradigms</option>
+                                
+                                    <option value="chaos growth">chaos growth</option>
+                                
+                                    <option value="emergence of new properties">emergence of new properties</option>
+                                
+                                    <option value="learning processes">learning processes</option>
+                                
+                                    <option value="materials processing">materials processing</option>
+                                
+                                    <option value="materials characterization techniques">materials characterization techniques</option>
+                                
+                                    <option value="material selection">material selection</option>
+                                
+                                    <option value="materials synthesis">materials synthesis</option>
+                                
+                                    <option value="materials testing">materials testing</option>
+                                
+                                    <option value="evolutionary competition between predators and prey">evolutionary competition between predators and prey</option>
+                                
+                                    <option value="segmentation accuracy">segmentation accuracy</option>
+                                
+                                    <option value="nanotechnology">nanotechnology</option>
+                                
+                                    <option value="biomimetic 3d printing">biomimetic 3d printing</option>
+                                
+                                    <option value="processing techniques">processing techniques</option>
+                                
+                                    <option value="machine learning">machine learning</option>
+                                
+                                    <option value="decomposition">decomposition</option>
+                                
+                                    <option value="input-output relationships">input-output relationships</option>
+                                
+                                    <option value="interaction intensities">interaction intensities</option>
+                                
+                                    <option value="mathematical description">mathematical description</option>
+                                
+                                    <option value="space-time scales">space-time scales</option>
+                                
+                                    <option value="different materials">different materials</option>
+                                
+                                    <option value="damage-triggered release">damage-triggered release</option>
+                                
+                                    <option value="extruded cementitious hollow tubes">extruded cementitious hollow tubes</option>
+                                
+                                    <option value="wear-resistant biomaterials">wear-resistant biomaterials</option>
+                                
+                                    <option value="abrasive wear resistance">abrasive wear resistance</option>
+                                
+                                    <option value="sandfish">sandfish</option>
+                                
+                                    <option value="scales">scales</option>
+                                
+                                    <option value="mn/ca-ions">mn/ca-ions</option>
+                                
+                                    <option value="nanocellulose microfibers">nanocellulose microfibers</option>
+                                
+                                    <option value="beetles animals">beetles animals</option>
+                                
+                                    <option value="cattle horns animals">cattle horns animals</option>
+                                
+                                    <option value="sheep animals">sheep animals</option>
+                                
+                                    <option value="frequency_specific_response">frequency_specific_response</option>
+                                
+                                    <option value="traveling_waves">traveling_waves</option>
+                                
+                                    <option value="study by steeves">study by steeves</option>
+                                
+                                    <option value="diamond nanocones">diamond nanocones</option>
+                                
+                                    <option value="nanopillars">nanopillars</option>
+                                
+                                    <option value="hydrophobic termites">hydrophobic termites</option>
+                                
+                                    <option value="ice-template techniques">ice-template techniques</option>
+                                
+                                    <option value="biobased 1d fibers">biobased 1d fibers</option>
+                                
+                                    <option value="cell culture applications">cell culture applications</option>
+                                
+                                    <option value="lignin nanoparticles">lignin nanoparticles</option>
+                                
+                                    <option value="strong coupling">strong coupling</option>
+                                
+                                    <option value="suitable for printing-based manufacturing">suitable for printing-based manufacturing</option>
+                                
+                                    <option value="rna">rna</option>
+                                
+                                    <option value="biological structures and materials">biological structures and materials</option>
+                                
+                                    <option value="macroscopic properties">macroscopic properties</option>
+                                
+                                    <option value="biomolecular templates">biomolecular templates</option>
+                                
+                                    <option value="rve">rve</option>
+                                
+                                    <option value="a. spatula mineralized fish scale">a. spatula mineralized fish scale</option>
+                                
+                                    <option value="hard mineral crystals">hard mineral crystals</option>
+                                
+                                    <option value="tension">tension</option>
+                                
+                                    <option value="soft organic matrix">soft organic matrix</option>
+                                
+                                    <option value="shape-memory polymers">shape-memory polymers</option>
+                                
+                                    <option value="mechanical properties of cells">mechanical properties of cells</option>
+                                
+                                    <option value="biomimetic nanocomposite hydrogels">biomimetic nanocomposite hydrogels</option>
+                                
+                                    <option value="chemical interphase">chemical interphase</option>
+                                
+                                    <option value="biological nanoscale structures">biological nanoscale structures</option>
+                                
+                                    <option value="typically lack">typically lack</option>
+                                
+                                    <option value="similar hierarchies for effective translation">similar hierarchies for effective translation</option>
+                                
+                                    <option value="dorsal plate">dorsal plate</option>
+                                
+                                    <option value="intermediate plate">intermediate plate</option>
+                                
+                                    <option value="ventral plate">ventral plate</option>
+                                
+                                    <option value="allograft material">allograft material</option>
+                                
+                                    <option value="material repair material">material repair material</option>
+                                
+                                    <option value="immune rejection concern material">immune rejection concern material</option>
+                                
+                                    <option value="viral infection risk material">viral infection risk material</option>
+                                
+                                    <option value="animal collagen tissue material">animal collagen tissue material</option>
+                                
+                                    <option value="artificial repair material">artificial repair material</option>
+                                
+                                    <option value="chronic inflammation material">chronic inflammation material</option>
+                                
+                                    <option value="autologous material">autologous material</option>
+                                
+                                    <option value="limited source material">limited source material</option>
+                                
+                                    <option value="biologically active material">biologically active material</option>
+                                
+                                    <option value="collagen i and iii containing material">collagen i and iii containing material</option>
+                                
+                                    <option value="fibroblast and vascular endothelial cell proliferating material">fibroblast and vascular endothelial cell proliferating material</option>
+                                
+                                    <option value="growth factor and proteoglycan containing material">growth factor and proteoglycan containing material</option>
+                                
+                                    <option value="carbon nanotube membranes">carbon nanotube membranes</option>
+                                
+                                    <option value="carboxylated cellulose nanofiber materials">carboxylated cellulose nanofiber materials</option>
+                                
+                                    <option value="cnt@si@c microspheres">cnt@si@c microspheres</option>
+                                
+                                    <option value="material defect">material defect</option>
+                                
+                                    <option value="nanofiber structure">nanofiber structure</option>
+                                
+                                    <option value="compression tests">compression tests</option>
+                                
+                                    <option value="curved shells">curved shells</option>
+                                
+                                    <option value="whole bone stiffness">whole bone stiffness</option>
+                                
+                                    <option value="outer layer">outer layer</option>
+                                
+                                    <option value="loading directions parallel to the shell's surface">loading directions parallel to the shell's surface</option>
+                                
+                                    <option value="loading directions perpendicular to growth lines">loading directions perpendicular to growth lines</option>
+                                
+                                    <option value="eds">eds</option>
+                                
+                                    <option value="hydroxyapatite material">hydroxyapatite material</option>
+                                
+                                    <option value="mineral elements">mineral elements</option>
+                                
+                                    <option value="mcgp">mcgp</option>
+                                
+                                    <option value="3d hap objects">3d hap objects</option>
+                                
+                                    <option value="controlled porous scaffold">controlled porous scaffold</option>
+                                
+                                    <option value="interconnected macropores">interconnected macropores</option>
+                                
+                                    <option value="pmma micro balls">pmma micro balls</option>
+                                
+                                    <option value="macropores">macropores</option>
+                                
+                                    <option value="electron microscopy">electron microscopy</option>
+                                
+                                    <option value="gold coating">gold coating</option>
+                                
+                                    <option value="failure mechanisms">failure mechanisms</option>
+                                
+                                    <option value="initial modulus">initial modulus</option>
+                                
+                                    <option value="less stiff">less stiff</option>
+                                
+                                    <option value="less strong">less strong</option>
+                                
+                                    <option value="recovery indices">recovery indices</option>
+                                
+                                    <option value="lab-based xrd">lab-based xrd</option>
+                                
+                                    <option value="chiral nematic structures">chiral nematic structures</option>
+                                
+                                    <option value="kcs">kcs</option>
+                                
+                                    <option value="detailed experimental methods">detailed experimental methods</option>
+                                
+                                    <option value="phase composition">phase composition</option>
+                                
+                                    <option value="nanofiber crystalline structure">nanofiber crystalline structure</option>
+                                
+                                    <option value="5">5</option>
+                                
+                                    <option value="adapted">adapted</option>
+                                
+                                    <option value="ha scaffolds">ha scaffolds</option>
+                                
+                                    <option value="cellular activities">cellular activities</option>
+                                
+                                    <option value="low porosity">low porosity</option>
+                                
+                                    <option value="3d microenvironment">3d microenvironment</option>
+                                
+                                    <option value="active stresses">active stresses</option>
+                                
+                                    <option value="necklace bead model scaffolds">necklace bead model scaffolds</option>
+                                
+                                    <option value="design">design</option>
+                                
+                                    <option value="can inform">can inform</option>
+                                
+                                    <option value="impact">impact</option>
+                                
+                                    <option value="study">study</option>
+                                
+                                    <option value="materials engineers">materials engineers</option>
+                                
+                                    <option value="conventional">conventional</option>
+                                
+                                    <option value="high porosity">high porosity</option>
+                                
+                                    <option value="small ice crystals">small ice crystals</option>
+                                
+                                    <option value="sio2 nanoparticles">sio2 nanoparticles</option>
+                                
+                                    <option value="metal-organic frameworks">metal-organic frameworks</option>
+                                
+                                    <option value="biocompatible">biocompatible</option>
+                                
+                                    <option value="bioglass (bg)">bioglass (bg)</option>
+                                
+                                    <option value="tricalcium phosphate (tcp)">tricalcium phosphate (tcp)</option>
+                                
+                                    <option value="weight measurement accuracy">weight measurement accuracy</option>
+                                
+                                    <option value="stress concentration">stress concentration</option>
+                                
+                                    <option value="viscoelastic muscles">viscoelastic muscles</option>
+                                
+                                    <option value="damage zone size">damage zone size</option>
+                                
+                                    <option value="nutrient diffusion">nutrient diffusion</option>
+                                
+                                    <option value="manatee rib bone tissue">manatee rib bone tissue</option>
+                                
+                                    <option value="us fish and wildlife service permit">us fish and wildlife service permit</option>
+                                
+                                    <option value="design and synthesis">design and synthesis</option>
+                                
+                                    <option value="dsc">dsc</option>
+                                
+                                    <option value="joint histograms">joint histograms</option>
+                                
+                                    <option value="combined use">combined use</option>
+                                
+                                    <option value="different material phases">different material phases</option>
+                                
+                                    <option value="dual modality neutron and x-ray tomography for enhanced image analysis of the bone-metal interface">dual modality neutron and x-ray tomography for enhanced image analysis of the bone-metal interface</option>
+                                
+                                    <option value="elin tornquist et al (2021)">elin tornquist et al (2021)</option>
+                                
+                                    <option value="investigates">investigates</option>
+                                
+                                    <option value="neutron">neutron</option>
+                                
+                                    <option value="proximal rat tibiae">proximal rat tibiae</option>
+                                
+                                    <option value="ti-based implants">ti-based implants</option>
+                                
+                                    <option value="tomography">tomography</option>
+                                
+                                    <option value="animal experiments">animal experiments</option>
+                                
+                                    <option value="association">association</option>
+                                
+                                    <option value="spinning conditions">spinning conditions</option>
+                                
+                                    <option value="nanoindentation tests">nanoindentation tests</option>
+                                
+                                    <option value="conducted">conducted</option>
+                                
+                                    <option value="new insights into the role of trabecular bone in the mechanical properties of bones">new insights into the role of trabecular bone in the mechanical properties of bones</option>
+                                
+                                    <option value="lei's model">lei's model</option>
+                                
+                                    <option value="size effects">size effects</option>
+                                
+                                    <option value="uniaxial compression experiments">uniaxial compression experiments</option>
+                                
+                                    <option value="weibull distributed critical strength">weibull distributed critical strength</option>
+                                
+                                    <option value="funding sources">funding sources</option>
+                                
+                                    <option value="background">background</option>
+                                
+                                    <option value="disturbance instances">disturbance instances</option>
+                                
+                                    <option value="disturbance tolerance">disturbance tolerance</option>
+                                
+                                    <option value="results">results</option>
+                                
+                                    <option value="pre-stretching-induced anisotropy">pre-stretching-induced anisotropy</option>
+                                
+                                    <option value="quasi-static and dynamic mechanical response">quasi-static and dynamic mechanical response</option>
+                                
+                                    <option value="guidoni et al.">guidoni et al.</option>
+                                
+                                    <option value="controlling for potential confounding factors">controlling for potential confounding factors</option>
+                                
+                                    <option value="water vapor sorption behavior">water vapor sorption behavior</option>
+                                
+                                    <option value="commercial polypropylene separators">commercial polypropylene separators</option>
+                                
+                                    <option value="other materials">other materials</option>
+                                
+                                    <option value="green flexible electronics">green flexible electronics</option>
+                                
+                                    <option value="ecm components">ecm components</option>
+                                
+                                    <option value="composite hydrogels (ecm-inspired)">composite hydrogels (ecm-inspired)</option>
+                                
+                                    <option value="in vivo assay samples">in vivo assay samples</option>
+                                
+                                    <option value="gelatin methacryloyl (gelma)">gelatin methacryloyl (gelma)</option>
+                                
+                                    <option value="mpcacm">mpcacm</option>
+                                
+                                    <option value="volumetric printing">volumetric printing</option>
+                                
+                                    <option value="mems (microelectromechanical systems)">mems (microelectromechanical systems)</option>
+                                
+                                    <option value="magnesium phosphate ps (amp ps)">magnesium phosphate ps (amp ps)</option>
+                                
+                                    <option value="storage modulus">storage modulus</option>
+                                
+                                    <option value="viscoelastic behavior">viscoelastic behavior</option>
+                                
+                                    <option value="poly(ethylene oxide) (peo)">poly(ethylene oxide) (peo)</option>
+                                
+                                    <option value="personalized medicine">personalized medicine</option>
+                                
+                                    <option value="surface characteristics">surface characteristics</option>
+                                
+                                    <option value="biological products">biological products</option>
+                                
+                                    <option value="anti-cancer drug delivery">anti-cancer drug delivery</option>
+                                
+                                    <option value="cell-cell interactions">cell-cell interactions</option>
+                                
+                                    <option value="complex in vitro cancer and bone models">complex in vitro cancer and bone models</option>
+                                
+                                    <option value="finely tunable architecture">finely tunable architecture</option>
+                                
+                                    <option value="host cells">host cells</option>
+                                
+                                    <option value="inorganic micro- or nano-fillers">inorganic micro- or nano-fillers</option>
+                                
+                                    <option value="nanocoatings">nanocoatings</option>
+                                
+                                    <option value="responses">responses</option>
+                                
+                                    <option value="vessel-like structures">vessel-like structures</option>
+                                
+                                    <option value="seed cells">seed cells</option>
+                                
+                                    <option value="horse hair">horse hair</option>
+                                
+                                    <option value="human hair">human hair</option>
+                                
+                                    <option value="dynamic modulus">dynamic modulus</option>
+                                
+                                    <option value="interlocking">interlocking</option>
+                                
+                                    <option value="fully hydrated bone tissue">fully hydrated bone tissue</option>
+                                
+                                    <option value="keratinous scutes">keratinous scutes</option>
+                                
+                                    <option value="genomics">genomics</option>
+                                
+                                    <option value="conventional flexible pressure sensors">conventional flexible pressure sensors</option>
+                                
+                                    <option value="strain">strain</option>
+                                
+                                    <option value="gfs">gfs</option>
+                                
+                                    <option value="increases linearly with stress">increases linearly with stress</option>
+                                
+                                    <option value="rotation of hard subcircuit islands">rotation of hard subcircuit islands</option>
+                                
+                                    <option value="elastic behavior">elastic behavior</option>
+                                
+                                    <option value="carbon nanotube ink">carbon nanotube ink</option>
+                                
+                                    <option value="electrically driven 3d printing technology">electrically driven 3d printing technology</option>
+                                
+                                    <option value="pt(8sacnt)">pt(8sacnt)</option>
+                                
+                                    <option value="structure">structure</option>
+                                
+                                    <option value="matrix">matrix</option>
+                                
+                                    <option value="direction of microfibrils">direction of microfibrils</option>
+                                
+                                    <option value="stress relaxation tests">stress relaxation tests</option>
+                                
+                                    <option value="cnt-coated yarn">cnt-coated yarn</option>
+                                
+                                    <option value="go-coated textile yarn">go-coated textile yarn</option>
+                                
+                                    <option value="pvdf-hfp-coated yarn">pvdf-hfp-coated yarn</option>
+                                
+                                    <option value="helmholtz free energy">helmholtz free energy</option>
+                                
+                                    <option value="byssus threads">byssus threads</option>
+                                
+                                    <option value="complex shapes">complex shapes</option>
+                                
+                                    <option value="compositional control">compositional control</option>
+                                
+                                    <option value="high precision">high precision</option>
+                                
+                                    <option value="additive manufacturing">additive manufacturing</option>
+                                
+                                    <option value="artificial tissues">artificial tissues</option>
+                                
+                                    <option value="ply-thicknesses">ply-thicknesses</option>
+                                
+                                    <option value="round cross-model">round cross-model</option>
+                                
+                                    <option value="square cross-section">square cross-section</option>
+                                
+                                    <option value="bio-inspired structures">bio-inspired structures</option>
+                                
+                                    <option value="composition design">composition design</option>
+                                
+                                    <option value="smart hydrogels">smart hydrogels</option>
+                                
+                                    <option value="inkjet printing">inkjet printing</option>
+                                
+                                    <option value="fuwen hu">fuwen hu</option>
+                                
+                                    <option value="biological heterogeneity">biological heterogeneity</option>
+                                
+                                    <option value="bonding between layers">bonding between layers</option>
+                                
+                                    <option value="complex structures">complex structures</option>
+                                
+                                    <option value="mechanical heterogeneity">mechanical heterogeneity</option>
+                                
+                                    <option value="advanced manufacturing technique">advanced manufacturing technique</option>
+                                
+                                    <option value="tool path control">tool path control</option>
+                                
+                                    <option value="approaches">approaches</option>
+                                
+                                    <option value="morphologies">morphologies</option>
+                                
+                                    <option value="ha/tcp suspensions">ha/tcp suspensions</option>
+                                
+                                    <option value="photocurable ha/tcp ceramic slurry">photocurable ha/tcp ceramic slurry</option>
+                                
+                                    <option value="atmospheric pressure">atmospheric pressure</option>
+                                
+                                    <option value="exceptional mechanical performance">exceptional mechanical performance</option>
+                                
+                                    <option value="exceptional optical performance">exceptional optical performance</option>
+                                
+                                    <option value="exceptional thermal behavior">exceptional thermal behavior</option>
+                                
+                                    <option value="mild processing conditions">mild processing conditions</option>
+                                
+                                    <option value="precise hierarchical organization">precise hierarchical organization</option>
+                                
+                                    <option value="room temperature">room temperature</option>
+                                
+                                    <option value="cocoyol endocarp">cocoyol endocarp</option>
+                                
+                                    <option value="automated assembly methods">automated assembly methods</option>
+                                
+                                    <option value="crystallographic control">crystallographic control</option>
+                                
+                                    <option value="fracture-tolerant properties">fracture-tolerant properties</option>
+                                
+                                    <option value="labor-intensive processing">labor-intensive processing</option>
+                                
+                                    <option value="microstructural control">microstructural control</option>
+                                
+                                    <option value="nanostructural control">nanostructural control</option>
+                                
+                                    <option value="ply misalignment">ply misalignment</option>
+                                
+                                    <option value="tissue regeneration materials">tissue regeneration materials</option>
+                                
+                                    <option value="biomimetic interface">biomimetic interface</option>
+                                
+                                    <option value="natural bone minerals">natural bone minerals</option>
+                                
+                                    <option value="tissue engineering applications (e.g., vascular and orthopedic grafts)">tissue engineering applications (e.g., vascular and orthopedic grafts)</option>
+                                
+                                    <option value="structural hierarchy">structural hierarchy</option>
+                                
+                                    <option value="cece">cece</option>
+                                
+                                    <option value="reprocessable elastomers">reprocessable elastomers</option>
+                                
+                                    <option value="biological fields">biological fields</option>
+                                
+                                    <option value="moth scales">moth scales</option>
+                                
+                                    <option value="silk fibers">silk fibers</option>
+                                
+                                    <option value="spider webs">spider webs</option>
+                                
+                                    <option value="research into natural material designs">research into natural material designs</option>
+                                
+                                    <option value="chiral self-assembly">chiral self-assembly</option>
+                                
+                                    <option value="chiral molecules">chiral molecules</option>
+                                
+                                    <option value="fiber-reinforced composite fabrication">fiber-reinforced composite fabrication</option>
+                                
+                                    <option value="mechanical toughness">mechanical toughness</option>
+                                
+                                    <option value="polymer matrices">polymer matrices</option>
+                                
+                                    <option value="lyophilization">lyophilization</option>
+                                
+                                    <option value="concentrated precursor solution">concentrated precursor solution</option>
+                                
+                                    <option value="porous scaffolds">porous scaffolds</option>
+                                
+                                    <option value="precise control over pore structure">precise control over pore structure</option>
+                                
+                                    <option value="ltdm">ltdm</option>
+                                
+                                    <option value="magnetically guided slip casting">magnetically guided slip casting</option>
+                                
+                                    <option value="precise control over geometry">precise control over geometry</option>
+                                
+                                    <option value="precise control over thickness distribution">precise control over thickness distribution</option>
+                                
+                                    <option value="slurry">slurry</option>
+                                
+                                    <option value="nanoscale">nanoscale</option>
+                                
+                                    <option value="precise control over composition">precise control over composition</option>
+                                
+                                    <option value="3d graphene architectures">3d graphene architectures</option>
+                                
+                                    <option value="applied magnetic field">applied magnetic field</option>
+                                
+                                    <option value="dipole-dipole interaction energy">dipole-dipole interaction energy</option>
+                                
+                                    <option value="thermal energy">thermal energy</option>
+                                
+                                    <option value="pa-h3">pa-h3</option>
+                                
+                                    <option value="tmv">tmv</option>
+                                
+                                    <option value="metal nanochains">metal nanochains</option>
+                                
+                                    <option value="metal nanowires">metal nanowires</option>
+                                
+                                    <option value="biological systems">biological systems</option>
+                                
+                                    <option value="essential protein domains">essential protein domains</option>
+                                
+                                    <option value="structure-property-process relationships">structure-property-process relationships</option>
+                                
+                                    <option value="in situ characterization methods">in situ characterization methods</option>
+                                
+                                    <option value="low cost">low cost</option>
+                                
+                                    <option value="non-covalent interactions">non-covalent interactions</option>
+                                
+                                    <option value="precision">precision</option>
+                                
+                                    <option value="biologicals">biologicals</option>
+                                
+                                    <option value="cost-effectiveness">cost-effectiveness</option>
+                                
+                                    <option value="dna">dna</option>
+                                
+                                    <option value="lipid-based bio-nanomaterials">lipid-based bio-nanomaterials</option>
+                                
+                                    <option value="protein- and peptide-based bio-nanomaterials">protein- and peptide-based bio-nanomaterials</option>
+                                
+                                    <option value="technological_feasibility">technological_feasibility</option>
+                                
+                                    <option value="bcp systems">bcp systems</option>
+                                
+                                    <option value="biological molecules and polymers">biological molecules and polymers</option>
+                                
+                                    <option value="enthalpy">enthalpy</option>
+                                
+                                    <option value="entropy">entropy</option>
+                                
+                                    <option value="functional biomaterials and devices">functional biomaterials and devices</option>
+                                
+                                    <option value="ambient temperature and pressure processing">ambient temperature and pressure processing</option>
+                                
+                                    <option value="bottom-up approach">bottom-up approach</option>
+                                
+                                    <option value="environmental effects/evolution">environmental effects/evolution</option>
+                                
+                                    <option value="functionality">functionality</option>
+                                
+                                    <option value="weak interactions">weak interactions</option>
+                                
+                                    <option value="vesicles">vesicles</option>
+                                
+                                    <option value="building blocks">building blocks</option>
+                                
+                                    <option value="spider silk protein self-assembly">spider silk protein self-assembly</option>
+                                
+                                    <option value="physiological range">physiological range</option>
+                                
+                                    <option value="components">components</option>
+                                
+                                    <option value="environment">environment</option>
+                                
+                                    <option value="interactions">interactions</option>
+                                
+                                    <option value="mass transport with agitation">mass transport with agitation</option>
+                                
+                                    <option value="reversibility">reversibility</option>
+                                
+                                    <option value="waxes">waxes</option>
+                                
+                                    <option value="template-free method">template-free method</option>
+                                
+                                    <option value="hydrophobic interactions">hydrophobic interactions</option>
+                                
+                                    <option value="nanochains">nanochains</option>
+                                
+                                    <option value="beta-chitin nanofibers">beta-chitin nanofibers</option>
+                                
+                                    <option value="harsh alkaline treatments">harsh alkaline treatments</option>
+                                
+                                    <option value="mild acidic conditions">mild acidic conditions</option>
+                                
+                                    <option value="n-acetyl d-glucosamine residues">n-acetyl d-glucosamine residues</option>
+                                
+                                    <option value="native aqueous environments">native aqueous environments</option>
+                                
+                                    <option value="proteolytic enzymes">proteolytic enzymes</option>
+                                
+                                    <option value="coulomb forces">coulomb forces</option>
+                                
+                                    <option value="environmental factors">environmental factors</option>
+                                
+                                    <option value="van der waals forces">van der waals forces</option>
+                                
+                                    <option value="infectious nanostructure">infectious nanostructure</option>
+                                
+                                    <option value="weaver et al.">weaver et al.</option>
+                                
+                                    <option value="guided by natural systems">guided by natural systems</option>
+                                
+                                    <option value="spray deposition">spray deposition</option>
+                                
+                                    <option value="complex gradients">complex gradients</option>
+                                
+                                    <option value="liquid precursor">liquid precursor</option>
+                                
+                                    <option value="aligned electrospun mat">aligned electrospun mat</option>
+                                
+                                    <option value="advantage">advantage</option>
+                                
+                                    <option value="printing trajectories">printing trajectories</option>
+                                
+                                    <option value="top-down fabrication methods">top-down fabrication methods</option>
+                                
+                                    <option value="gradient functional materials">gradient functional materials</option>
+                                
+                                    <option value="biomaterials_new">biomaterials_new</option>
+                                
+                                    <option value="ice templating">ice templating</option>
+                                
+                                    <option value="attachment points for muscles">attachment points for muscles</option>
+                                
+                                    <option value="blood cell formation">blood cell formation</option>
+                                
+                                    <option value="environmental protection">environmental protection</option>
+                                
+                                    <option value="structural support">structural support</option>
+                                
+                                    <option value="water barriers">water barriers</option>
+                                
+                                    <option value="artificial materials">artificial materials</option>
+                                
+                                    <option value="dry sliding wear behavior">dry sliding wear behavior</option>
+                                
+                                    <option value="compression experiments">compression experiments</option>
+                                
+                                    <option value="heat capacity">heat capacity</option>
+                                
+                                    <option value="biological compatibility">biological compatibility</option>
+                                
+                                    <option value="nucleating agents">nucleating agents</option>
+                                
+                                    <option value="self-assembled biomaterials">self-assembled biomaterials</option>
+                                
+                                    <option value="templates">templates</option>
+                                
+                                    <option value="host-guest reactions">host-guest reactions</option>
+                                
+                                    <option value="reducing or oxidizing agents">reducing or oxidizing agents</option>
+                                
+                                    <option value="nanosensors">nanosensors</option>
+                                
+                                    <option value="dendrimers">dendrimers</option>
+                                
+                                    <option value="diffraction patterns">diffraction patterns</option>
+                                
+                                    <option value="structural architectures">structural architectures</option>
+                                
+                                    <option value="diffraction peaks">diffraction peaks</option>
+                                
+                                    <option value="conceptual difficulty">conceptual difficulty</option>
+                                
+                                    <option value="aragonite fibers">aragonite fibers</option>
+                                
+                                    <option value="millimeters">millimeters</option>
+                                
+                                    <option value="nanometers">nanometers</option>
+                                
+                                    <option value="plywood structures">plywood structures</option>
+                                
+                                    <option value="prismatic arrays">prismatic arrays</option>
+                                
+                                    <option value="structural elements">structural elements</option>
+                                
+                                    <option value="tubercle pores">tubercle pores</option>
+                                
+                                    <option value="medullaryfoam">medullaryfoam</option>
+                                
+                                    <option value="multifilaments">multifilaments</option>
+                                
+                                    <option value="natural luffa sponge">natural luffa sponge</option>
+                                
+                                    <option value="hierarchical organization">hierarchical organization</option>
+                                
+                                    <option value="hydroxyapatite (ha) nps">hydroxyapatite (ha) nps</option>
+                                
+                                    <option value="physiological loads">physiological loads</option>
+                                
+                                    <option value="metal materials">metal materials</option>
+                                
+                                    <option value="tantalum">tantalum</option>
+                                
+                                    <option value="polyimide (pim)/pan/mof composite fabric">polyimide (pim)/pan/mof composite fabric</option>
+                                
+                                    <option value="sustainable_materials">sustainable_materials</option>
+                                
+                                    <option value="supramolecular microgels">supramolecular microgels</option>
+                                
+                                    <option value="ceramic scaffold">ceramic scaffold</option>
+                                
+                                    <option value="chinese pangolin scales">chinese pangolin scales</option>
+                                
+                                    <option value="keratin-based biomaterials">keratin-based biomaterials</option>
+                                
+                                    <option value="ferric ions">ferric ions</option>
+                                
+                                    <option value="nanomaterial">nanomaterial</option>
+                                
+                                    <option value="in situ grown nanoparticles">in situ grown nanoparticles</option>
+                                
+                                    <option value="polymer matrix">polymer matrix</option>
+                                
+                                    <option value="conventional methods">conventional methods</option>
+                                
+                                    <option value="second phase">second phase</option>
+                                
+                                    <option value="aqueous solution">aqueous solution</option>
+                                
+                                    <option value="cncs">cncs</option>
+                                
+                                    <option value="interaction">interaction</option>
+                                
+                                    <option value="protein mobility">protein mobility</option>
+                                
+                                    <option value="scaly titanium-oxide-coated fabric membranes">scaly titanium-oxide-coated fabric membranes</option>
+                                
+                                    <option value="oil">oil</option>
+                                
+                                    <option value="honey-bone">honey-bone</option>
+                                
+                                    <option value="superhydrophilic surface">superhydrophilic surface</option>
+                                
+                                    <option value="chitosan nanofiber">chitosan nanofiber</option>
+                                
+                                    <option value="silicatein-α">silicatein-α</option>
+                                
+                                    <option value="wang et al.">wang et al.</option>
+                                
+                                    <option value="compositional gradient">compositional gradient</option>
+                                
+                                    <option value="aquatic insects">aquatic insects</option>
+                                
+                                    <option value="terrestrial insects">terrestrial insects</option>
+                                
+                                    <option value="suction cups">suction cups</option>
+                                
+                                    <option value="human body">human body</option>
+                                
+                                    <option value="total volume">total volume</option>
+                                
+                                    <option value="luffa sponge">luffa sponge</option>
+                                
+                                    <option value="low young's modulus">low young's modulus</option>
+                                
+                                    <option value="nearly incompressible nature">nearly incompressible nature</option>
+                                
+                                    <option value="hydrogelator model">hydrogelator model</option>
+                                
+                                    <option value="keratin materials">keratin materials</option>
+                                
+                                    <option value="cnf">cnf</option>
+                                
+                                    <option value="cnf/zein">cnf/zein</option>
+                                
+                                    <option value="ambient humidity">ambient humidity</option>
+                                
+                                    <option value="nonlinear deformation behavior">nonlinear deformation behavior</option>
+                                
+                                    <option value="calcium carbonate">calcium carbonate</option>
+                                
+                                    <option value="calcium phosphate">calcium phosphate</option>
+                                
+                                    <option value="calcium sulfate">calcium sulfate</option>
+                                
+                                    <option value="dopant ions">dopant ions</option>
+                                
+                                    <option value="multiple mineral phases">multiple mineral phases</option>
+                                
+                                    <option value="3d_printing_technology">3d_printing_technology</option>
+                                
+                                    <option value="interphase region">interphase region</option>
+                                
+                                    <option value="traditional interphase behavior">traditional interphase behavior</option>
+                                
+                                    <option value="devices">devices</option>
+                                
+                                    <option value="level">level</option>
+                                
+                                    <option value="manipulation">manipulation</option>
+                                
+                                    <option value="four distinct scales">four distinct scales</option>
+                                
+                                    <option value="mineral grading">mineral grading</option>
+                                
+                                    <option value="morphology control">morphology control</option>
+                                
+                                    <option value="hollow structures">hollow structures</option>
+                                
+                                    <option value="nanofilms">nanofilms</option>
+                                
+                                    <option value="nanosheets">nanosheets</option>
+                                
+                                    <option value="nanospheres">nanospheres</option>
+                                
+                                    <option value="synthesis methods">synthesis methods</option>
+                                
+                                    <option value="higher encapsulation rates">higher encapsulation rates</option>
+                                
+                                    <option value="high surface areas">high surface areas</option>
+                                
+                                    <option value="lower toxicity">lower toxicity</option>
+                                
+                                    <option value="mesopores">mesopores</option>
+                                
+                                    <option value="micropores">micropores</option>
+                                
+                                    <option value="release mechanism">release mechanism</option>
+                                
+                                    <option value="diffusion">diffusion</option>
+                                
+                                    <option value="erosion">erosion</option>
+                                
+                                    <option value="initial burst release">initial burst release</option>
+                                
+                                    <option value="slow release">slow release</option>
+                                
+                                    <option value="stimuli responsiveness">stimuli responsiveness</option>
+                                
+                                    <option value="dual actionability">dual actionability</option>
+                                
+                                    <option value="ph responsiveness">ph responsiveness</option>
+                                
+                                    <option value="photoresponsiveness">photoresponsiveness</option>
+                                
+                                    <option value="receptor-mediated release">receptor-mediated release</option>
+                                
+                                    <option value="thermal responsiveness">thermal responsiveness</option>
+                                
+                                    <option value="individuals">individuals</option>
+                                
+                                    <option value="polymer concentration">polymer concentration</option>
+                                
+                                    <option value="low mechanical strength">low mechanical strength</option>
+                                
+                                    <option value="lysozyme">lysozyme</option>
+                                
+                                    <option value="porous organic polymers (pops)">porous organic polymers (pops)</option>
+                                
+                                    <option value="adsorption capacity">adsorption capacity</option>
+                                
+                                    <option value="dopamine">dopamine</option>
+                                
+                                    <option value="magnetic properties">magnetic properties</option>
+                                
+                                    <option value="collective buckling">collective buckling</option>
+                                
+                                    <option value="proximity between individual carbon nanotubes">proximity between individual carbon nanotubes</option>
+                                
+                                    <option value="flash-dilution technique">flash-dilution technique</option>
+                                
+                                    <option value="storage">storage</option>
+                                
+                                    <option value="young's moduli">young's moduli</option>
+                                
+                                    <option value="artificial carbonate nanocrystals">artificial carbonate nanocrystals</option>
+                                
+                                    <option value="metal oxide nanoparticles">metal oxide nanoparticles</option>
+                                
+                                    <option value="high surface area">high surface area</option>
+                                
+                                    <option value="tunable pore sizes">tunable pore sizes</option>
+                                
+                                    <option value="excellent co2 separation selectivity">excellent co2 separation selectivity</option>
+                                
+                                    <option value="high thermal stability">high thermal stability</option>
+                                
+                                    <option value="microparticles">microparticles</option>
+                                
+                                    <option value="engineered protein nanodrugs">engineered protein nanodrugs</option>
+                                
+                                    <option value="predicted structure">predicted structure</option>
+                                
+                                    <option value="lipids">lipids</option>
+                                
+                                    <option value="hierarchical silica capsules">hierarchical silica capsules</option>
+                                
+                                    <option value="pores">pores</option>
+                                
+                                    <option value="accessible mesopores">accessible mesopores</option>
+                                
+                                    <option value="biofuel cell enzymes">biofuel cell enzymes</option>
+                                
+                                    <option value="embedded pores">embedded pores</option>
+                                
+                                    <option value="specific pore sizes">specific pore sizes</option>
+                                
+                                    <option value="oil phase">oil phase</option>
+                                
+                                    <option value="cm-rgd peptide">cm-rgd peptide</option>
+                                
+                                    <option value="cell walls">cell walls</option>
+                                
+                                    <option value="multi-strand hierarchical cmc fibers">multi-strand hierarchical cmc fibers</option>
+                                
+                                    <option value="pvi-co-aam">pvi-co-aam</option>
+                                
+                                    <option value="expansion">expansion</option>
+                                
+                                    <option value="bioinspired protective armors">bioinspired protective armors</option>
+                                
+                                    <option value="higher toughness and flexibility">higher toughness and flexibility</option>
+                                
+                                    <option value="teleost fish scale structure">teleost fish scale structure</option>
+                                
+                                    <option value="optimum mechanical features">optimum mechanical features</option>
+                                
+                                    <option value="real-life situations">real-life situations</option>
+                                
+                                    <option value="software tools">software tools</option>
+                                
+                                    <option value="fish scale">fish scale</option>
+                                
+                                    <option value="piezoresistive sensors for real-time monitoring of physiological signals">piezoresistive sensors for real-time monitoring of physiological signals</option>
+                                
+                                    <option value="ductile behavior">ductile behavior</option>
+                                
+                                    <option value="thinner thicknesses">thinner thicknesses</option>
+                                
+                                    <option value="s. subcrenata">s. subcrenata</option>
+                                
+                                    <option value="uncracked mineral ligaments">uncracked mineral ligaments</option>
+                                
+                                    <option value="innermost endocuticle">innermost endocuticle</option>
+                                
+                                    <option value="jiao et al.">jiao et al.</option>
+                                
+                                    <option value="double-layered electrospun scaffolds">double-layered electrospun scaffolds</option>
+                                
+                                    <option value="failureprocess">failureprocess</option>
+                                
+                                    <option value="structuralproperties">structuralproperties</option>
+                                
+                                    <option value="outer ganoine layer">outer ganoine layer</option>
+                                
+                                    <option value="alp">alp</option>
+                                
+                                    <option value="biocomposites composed of paa and ha nanoparticles">biocomposites composed of paa and ha nanoparticles</option>
+                                
+                                    <option value="b-catenin">b-catenin</option>
+                                
+                                    <option value="l-m/cs-8 scaffolds">l-m/cs-8 scaffolds</option>
+                                
+                                    <option value="early marker for osteogenic differentiation">early marker for osteogenic differentiation</option>
+                                
+                                    <option value="enzyme">enzyme</option>
+                                
+                                    <option value="scaffold material eluent">scaffold material eluent</option>
+                                
+                                    <option value="bcp/nbt">bcp/nbt</option>
+                                
+                                    <option value="bmscs">bmscs</option>
+                                
+                                    <option value="atp">atp</option>
+                                
+                                    <option value="ca2+ release">ca2+ release</option>
+                                
+                                    <option value="extracellular space">extracellular space</option>
+                                
+                                    <option value="gene_expression">gene_expression</option>
+                                
+                                    <option value="elongating flat morphologies">elongating flat morphologies</option>
+                                
+                                    <option value="numerous filopodia and lamellipodia">numerous filopodia and lamellipodia</option>
+                                
+                                    <option value="clsm">clsm</option>
+                                
+                                    <option value="col i">col i</option>
+                                
+                                    <option value="methylene blue staining">methylene blue staining</option>
+                                
+                                    <option value="ocn">ocn</option>
+                                
+                                    <option value="opn">opn</option>
+                                
+                                    <option value="runx2">runx2</option>
+                                
+                                    <option value="mitochondria">mitochondria</option>
+                                
+                                    <option value="nuclei">nuclei</option>
+                                
+                                    <option value="cscap">cscap</option>
+                                
+                                    <option value="late marker for osteogenic differentiation">late marker for osteogenic differentiation</option>
+                                
+                                    <option value="group an">group an</option>
+                                
+                                    <option value="adhesive structures">adhesive structures</option>
+                                
+                                    <option value="compliant">compliant</option>
+                                
+                                    <option value="large contact areas">large contact areas</option>
+                                
+                                    <option value="sticky">sticky</option>
+                                
+                                    <option value="van der waals interactions">van der waals interactions</option>
+                                
+                                    <option value="fangs' cuticle">fangs' cuticle</option>
+                                
+                                    <option value="combined bending-torsion loads">combined bending-torsion loads</option>
+                                
+                                    <option value="parallel fibre organization">parallel fibre organization</option>
+                                
+                                    <option value="venom injection into prey">venom injection into prey</option>
+                                
+                                    <option value="talons">talons</option>
+                                
+                                    <option value="legs">legs</option>
+                                
+                                    <option value="parallel fibre layers">parallel fibre layers</option>
+                                
+                                    <option value="rougher surfaces">rougher surfaces</option>
+                                
+                                    <option value="thickened epicuticle">thickened epicuticle</option>
+                                
+                                    <option value="diverse mechanical structures">diverse mechanical structures</option>
+                                
+                                    <option value="natural environment">natural environment</option>
+                                
+                                    <option value="dendrite silk">dendrite silk</option>
+                                
+                                    <option value="increased anchorage length">increased anchorage length</option>
+                                
+                                    <option value="low adhesion strength">low adhesion strength</option>
+                                
+                                    <option value="small initial angles">small initial angles</option>
+                                
+                                    <option value="distinct silk architectures">distinct silk architectures</option>
+                                
+                                    <option value="staple silk">staple silk</option>
+                                
+                                    <option value="sufficient toughness">sufficient toughness</option>
+                                
+                                    <option value="silks">silks</option>
+                                
+                                    <option value="orienta silk">orienta silk</option>
+                                
+                                    <option value="gecko adhesion system">gecko adhesion system</option>
+                                
+                                    <option value="chitin nanocrystals">chitin nanocrystals</option>
+                                
+                                    <option value="electrostatic repulsion">electrostatic repulsion</option>
+                                
+                                    <option value="computational studies">computational studies</option>
+                                
+                                    <option value="cnf/eg71-upy29 nanocomposite">cnf/eg71-upy29 nanocomposite</option>
+                                
+                                    <option value="energy transfer">energy transfer</option>
+                                
+                                    <option value="mechanical property">mechanical property</option>
+                                
+                                    <option value="rigidity">rigidity</option>
+                                
+                                    <option value="stiffness coefficient">stiffness coefficient</option>
+                                
+                                    <option value="stiffness distribution">stiffness distribution</option>
+                                
+                                    <option value="axial stiffness gradient">axial stiffness gradient</option>
+                                
+                                    <option value="matrix stiffness">matrix stiffness</option>
+                                
+                                    <option value="stiffness modulus">stiffness modulus</option>
+                                
+                                    <option value="stiffness ratio">stiffness ratio</option>
+                                
+                                    <option value="stiffness response">stiffness response</option>
+                                
+                                    <option value="stiffness sensitivity">stiffness sensitivity</option>
+                                
+                                    <option value="stiffness tensor">stiffness tensor</option>
+                                
+                                    <option value="stiffness variation">stiffness variation</option>
+                                
+                                    <option value="level-1">level-1</option>
+                                
+                                    <option value="gradients">gradients</option>
+                                
+                                    <option value="monomer composition">monomer composition</option>
+                                
+                                    <option value="surface s values">surface s values</option>
+                                
+                                    <option value="light-adaptive nanocomposite">light-adaptive nanocomposite</option>
+                                
+                                    <option value="band gap">band gap</option>
+                                
+                                    <option value="force-deflection curves">force-deflection curves</option>
+                                
+                                    <option value="microfibril angles">microfibril angles</option>
+                                
+                                    <option value="microlattice mechanical metamaterials">microlattice mechanical metamaterials</option>
+                                
+                                    <option value="endocutic">endocutic</option>
+                                
+                                    <option value="chitin fibers">chitin fibers</option>
+                                
+                                    <option value="chitin lamellae">chitin lamellae</option>
+                                
+                                    <option value="amorphous silica nanowires">amorphous silica nanowires</option>
+                                
+                                    <option value="bending-bending lattices">bending-bending lattices</option>
+                                
+                                    <option value="acc-mineralized cuticle">acc-mineralized cuticle</option>
+                                
+                                    <option value="calcite-mineralized cuticle">calcite-mineralized cuticle</option>
+                                
+                                    <option value="nano-ha">nano-ha</option>
+                                
+                                    <option value="nano-sio2">nano-sio2</option>
+                                
+                                    <option value="mastery of interfaces">mastery of interfaces</option>
+                                
+                                    <option value="complex architected materials">complex architected materials</option>
+                                
+                                    <option value="{'nonnativedesigns': true, 'multifunctionality': true}">{'nonnativedesigns': true, 'multifunctionality': true}</option>
+                                
+                                    <option value="three-dimensional printing technology">three-dimensional printing technology</option>
+                                
+                                    <option value="complex tissues">complex tissues</option>
+                                
+                                    <option value="multi-dimensional design space for additive manufacturing">multi-dimensional design space for additive manufacturing</option>
+                                
+                                    <option value="customization">customization</option>
+                                
+                                    <option value="collagen fiber spinning">collagen fiber spinning</option>
+                                
+                                    <option value="amorphous calcium phosphate (acp)">amorphous calcium phosphate (acp)</option>
+                                
+                                    <option value="impact region">impact region</option>
+                                
+                                    <option value="polymer components">polymer components</option>
+                                
+                                    <option value="amorphous calcium phosphate precursors">amorphous calcium phosphate precursors</option>
+                                
+                                    <option value="amorphous precursor phases">amorphous precursor phases</option>
+                                
+                                    <option value="cluster">cluster</option>
+                                
+                                    <option value="biogenic calcium phosphate mineral commonly found in bone and teeth">biogenic calcium phosphate mineral commonly found in bone and teeth</option>
+                                
+                                    <option value="crystalline materials">crystalline materials</option>
+                                
+                                    <option value="wood-based mimicked bone">wood-based mimicked bone</option>
+                                
+                                    <option value="calcium phosphate ceramics">calcium phosphate ceramics</option>
+                                
+                                    <option value="fluorapatite">fluorapatite</option>
+                                
+                                    <option value="abrasion-resistant biominerals">abrasion-resistant biominerals</option>
+                                
+                                    <option value="hard material building blocks">hard material building blocks</option>
+                                
+                                    <option value="b-ha">b-ha</option>
+                                
+                                    <option value="nanoscale building blocks">nanoscale building blocks</option>
+                                
+                                    <option value="nanocrystals within mineralized tissues">nanocrystals within mineralized tissues</option>
+                                
+                                    <option value="main mineral component">main mineral component</option>
+                                
+                                    <option value="full phosphatization of calcite into apatite by substituting carbonate with phosphate and hydroxyl anions">full phosphatization of calcite into apatite by substituting carbonate with phosphate and hydroxyl anions</option>
+                                
+                                    <option value="diatoms">diatoms</option>
+                                
+                                    <option value="sponges">sponges</option>
+                                
+                                    <option value="amorphous materials">amorphous materials</option>
+                                
+                                    <option value="biomimetic silica">biomimetic silica</option>
+                                
+                                    <option value="osteoblast activity">osteoblast activity</option>
+                                
+                                    <option value="osteoclast differentiation">osteoclast differentiation</option>
+                                
+                                    <option value="silica aerogels">silica aerogels</option>
+                                
+                                    <option value="highly sensitive defect tolerance">highly sensitive defect tolerance</option>
+                                
+                                    <option value="formation">formation</option>
+                                
+                                    <option value="mineral constituent">mineral constituent</option>
+                                
+                                    <option value="defect_tolerance">defect_tolerance</option>
+                                
+                                    <option value="b-sheet nanocrystals">b-sheet nanocrystals</option>
+                                
+                                    <option value="hydrogen-bonded polypeptide strands">hydrogen-bonded polypeptide strands</option>
+                                
+                                    <option value="semi-amorphous protein phase">semi-amorphous protein phase</option>
+                                
+                                    <option value="sio2">sio2</option>
+                                
+                                    <option value="diatom frustules">diatom frustules</option>
+                                
+                                    <option value="amorphous calcium phosphate">amorphous calcium phosphate</option>
+                                
+                                    <option value="human enamel crystallites">human enamel crystallites</option>
+                                
+                                    <option value="core-shell architecture">core-shell architecture</option>
+                                
+                                    <option value="low supersaturation">low supersaturation</option>
+                                
+                                    <option value="magnesium substitution">magnesium substitution</option>
+                                
+                                    <option value="mg-poor shell">mg-poor shell</option>
+                                
+                                    <option value="biogenic calcite">biogenic calcite</option>
+                                
+                                    <option value="carbon nanotubes (cnc)">carbon nanotubes (cnc)</option>
+                                
+                                    <option value="cold crystallization">cold crystallization</option>
+                                
+                                    <option value="elongation at break">elongation at break</option>
+                                
+                                    <option value="high-temperature differential scanning calorimetry (hdt/v-3116)">high-temperature differential scanning calorimetry (hdt/v-3116)</option>
+                                
+                                    <option value="melting behavior">melting behavior</option>
+                                
+                                    <option value="shear flow field">shear flow field</option>
+                                
+                                    <option value="vicat softening temperature (vst)">vicat softening temperature (vst)</option>
+                                
+                                    <option value="hap minerals">hap minerals</option>
+                                
+                                    <option value="absorption capability">absorption capability</option>
+                                
+                                    <option value="carbonate-to-phosphate ratio">carbonate-to-phosphate ratio</option>
+                                
+                                    <option value="juvenile controls">juvenile controls</option>
+                                
+                                    <option value="zno nanowires">zno nanowires</option>
+                                
+                                    <option value="engineered leather">engineered leather</option>
+                                
+                                    <option value="high entropy alloys (heas)">high entropy alloys (heas)</option>
+                                
+                                    <option value="microstructure images">microstructure images</option>
+                                
+                                    <option value="fracture morphology">fracture morphology</option>
+                                
+                                    <option value="e_tc">e_tc</option>
+                                
+                                    <option value="clay content">clay content</option>
+                                
+                                    <option value="mb pp non-woven fabric">mb pp non-woven fabric</option>
+                                
+                                    <option value="pim-1 membrane">pim-1 membrane</option>
+                                
+                                    <option value="prs">prs</option>
+                                
+                                    <option value="combined techniques">combined techniques</option>
+                                
+                                    <option value="osteonal and interstitial domains">osteonal and interstitial domains</option>
+                                
+                                    <option value="blurring effect">blurring effect</option>
+                                
+                                    <option value="complementary data">complementary data</option>
+                                
+                                    <option value="sam">sam</option>
+                                
+                                    <option value="sr-nanoct">sr-nanoct</option>
+                                
+                                    <option value="first-order structure">first-order structure</option>
+                                
+                                    <option value="interface morphology">interface morphology</option>
+                                
+                                    <option value="second-order sinusoidal morphology">second-order sinusoidal morphology</option>
+                                
+                                    <option value="harmonic microstructure">harmonic microstructure</option>
+                                
+                                    <option value="wavy interface microstructure">wavy interface microstructure</option>
+                                
+                                    <option value="crack propagation">crack propagation</option>
+                                
+                                    <option value="non-self-similar">non-self-similar</option>
+                                
+                                    <option value="antlers">antlers</option>
+                                
+                                    <option value="keratinized tissue">keratinized tissue</option>
+                                
+                                    <option value="compressive loading">compressive loading</option>
+                                
+                                    <option value="tensileloading">tensileloading</option>
+                                
+                                    <option value="insensitivity">insensitivity</option>
+                                
+                                    <option value="up to 40 mpa/m">up to 40 mpa/m</option>
+                                
+                                    <option value="lower fracture toughness">lower fracture toughness</option>
+                                
+                                    <option value="plexiform bone">plexiform bone</option>
+                                
+                                    <option value="chen et al.">chen et al.</option>
+                                
+                                    <option value="alkali metals">alkali metals</option>
+                                
+                                    <option value="interact">interact</option>
+                                
+                                    <option value="gasification">gasification</option>
+                                
+                                    <option value="ligands">ligands</option>
+                                
+                                    <option value="chemical groups">chemical groups</option>
+                                
+                                    <option value="nanoparticle interactions">nanoparticle interactions</option>
+                                
+                                    <option value="cnos">cnos</option>
+                                
+                                    <option value="protein 8">protein 8</option>
+                                
+                                    <option value="common metal ions">common metal ions</option>
+                                
+                                    <option value="polarizability">polarizability</option>
+                                
+                                    <option value="kinetically labile">kinetically labile</option>
+                                
+                                    <option value="ph changes">ph changes</option>
+                                
+                                    <option value="protein ligands">protein ligands</option>
+                                
+                                    <option value="electroplating">electroplating</option>
+                                
+                                    <option value="metal-ligand coordination bonds">metal-ligand coordination bonds</option>
+                                
+                                    <option value="biological function">biological function</option>
+                                
+                                    <option value="catalysis">catalysis</option>
+                                
+                                    <option value="nitrogen fixation">nitrogen fixation</option>
+                                
+                                    <option value="offer">offer</option>
+                                
+                                    <option value="photosynthesis">photosynthesis</option>
+                                
+                                    <option value="respiration">respiration</option>
+                                
+                                    <option value="imogolite">imogolite</option>
+                                
+                                    <option value="3dp">3dp</option>
+                                
+                                    <option value="tendon repair">tendon repair</option>
+                                
+                                    <option value="additive manufacturing techniques">additive manufacturing techniques</option>
+                                
+                                    <option value="patient-specific implants">patient-specific implants</option>
+                                
+                                    <option value="beetle-inspired structures">beetle-inspired structures</option>
+                                
+                                    <option value="lattice and porous structures">lattice and porous structures</option>
+                                
+                                    <option value="appropriate mechanical properties">appropriate mechanical properties</option>
+                                
+                                    <option value="fibroblasts">fibroblasts</option>
+                                
+                                    <option value="gelma">gelma</option>
+                                
+                                    <option value="metal-based materials">metal-based materials</option>
+                                
+                                    <option value="cytocompatibility">cytocompatibility</option>
+                                
+                                    <option value="digital light processing (dlp) photopolymerization capabilities">digital light processing (dlp) photopolymerization capabilities</option>
+                                
+                                    <option value="rgd contains">rgd contains</option>
+                                
+                                    <option value="electrically conductive biopolymer-based nanocomposite hydrogels">electrically conductive biopolymer-based nanocomposite hydrogels</option>
+                                
+                                    <option value="hierarchical organization/fiber orientation">hierarchical organization/fiber orientation</option>
+                                
+                                    <option value="in vitro assays">in vitro assays</option>
+                                
+                                    <option value="mesenchymal stem cells">mesenchymal stem cells</option>
+                                
+                                    <option value="polyurethanes">polyurethanes</option>
+                                
+                                    <option value="hydroxyapatite nanoparticles/polyurethane composite scaffold">hydroxyapatite nanoparticles/polyurethane composite scaffold</option>
+                                
+                                    <option value="hard exterior">hard exterior</option>
+                                
+                                    <option value="tough interior">tough interior</option>
+                                
+                                    <option value="intelligent regulation of local properties">intelligent regulation of local properties</option>
+                                
+                                    <option value="hybrid process">hybrid process</option>
+                                
+                                    <option value="camouflage">camouflage</option>
+                                
+                                    <option value="communication">communication</option>
+                                
+                                    <option value="navigation">navigation</option>
+                                
+                                    <option value="photonic crystal">photonic crystal</option>
+                                
+                                    <option value="polarized light">polarized light</option>
+                                
+                                    <option value="bioinspiration">bioinspiration</option>
+                                
+                                    <option value="superior functionalities">superior functionalities</option>
+                                
+                                    <option value="blunt contacts">blunt contacts</option>
+                                
+                                    <option value="complex microstructures">complex microstructures</option>
+                                
+                                    <option value="enhanced migration efficiency">enhanced migration efficiency</option>
+                                
+                                    <option value="gradual properties">gradual properties</option>
+                                
+                                    <option value="improved predation efficiency">improved predation efficiency</option>
+                                
+                                    <option value="increased fracture resistance in intraspecific competition">increased fracture resistance in intraspecific competition</option>
+                                
+                                    <option value="intrinsic toughening">intrinsic toughening</option>
+                                
+                                    <option value="multi-phase composites">multi-phase composites</option>
+                                
+                                    <option value="protection against predators">protection against predators</option>
+                                
+                                    <option value="resistance to abrasion during burrowing">resistance to abrasion during burrowing</option>
+                                
+                                    <option value="sharp contacts">sharp contacts</option>
+                                
+                                    <option value="mother-of-pearl">mother-of-pearl</option>
+                                
+                                    <option value="hybrid biomaterials">hybrid biomaterials</option>
+                                
+                                    <option value="organic matrix">organic matrix</option>
+                                
+                                    <option value="calcium carbonate platelets">calcium carbonate platelets</option>
+                                
+                                    <option value="bio-inspired-staggered-composites">bio-inspired-staggered-composites</option>
+                                
+                                    <option value="polymer-based materials">polymer-based materials</option>
+                                
+                                    <option value="adjacent fibers">adjacent fibers</option>
+                                
+                                    <option value="computer-aided design data">computer-aided design data</option>
+                                
+                                    <option value="controlled mechanical properties">controlled mechanical properties</option>
+                                
+                                    <option value="personalized orthopedic implants">personalized orthopedic implants</option>
+                                
+                                    <option value="pore size">pore size</option>
+                                
+                                    <option value="biological materials in nature, such as human tissues">biological materials in nature, such as human tissues</option>
+                                
+                                    <option value="isotropic materials">isotropic materials</option>
+                                
+                                    <option value="frep-based architected materials">frep-based architected materials</option>
+                                
+                                    <option value="average ratio of second normal stress to first normal stress">average ratio of second normal stress to first normal stress</option>
+                                
+                                    <option value="fiberreorientation">fiberreorientation</option>
+                                
+                                    <option value="inplanesheardeformation">inplanesheardeformation</option>
+                                
+                                    <option value="strainstiffening">strainstiffening</option>
+                                
+                                    <option value="transversecontraction">transversecontraction</option>
+                                
+                                    <option value="realization through melt extrusion-based 3d printing">realization through melt extrusion-based 3d printing</option>
+                                
+                                    <option value="oriented crystals">oriented crystals</option>
+                                
+                                    <option value="contact angle">contact angle</option>
+                                
+                                    <option value="plla">plla</option>
+                                
+                                    <option value="pristine samples">pristine samples</option>
+                                
+                                    <option value="hard tissue engineering applications">hard tissue engineering applications</option>
+                                
+                                    <option value="lack of cell recognition sites">lack of cell recognition sites</option>
+                                
+                                    <option value="weak cell adhesion efficiency">weak cell adhesion efficiency</option>
+                                
+                                    <option value="structural agglomeration on surface of fibers">structural agglomeration on surface of fibers</option>
+                                
+                                    <option value="c-pdms/sio2 coating">c-pdms/sio2 coating</option>
+                                
+                                    <option value="air quality index">air quality index</option>
+                                
+                                    <option value="durability">durability</option>
+                                
+                                    <option value="external damages">external damages</option>
+                                
+                                    <option value="high transmittance">high transmittance</option>
+                                
+                                    <option value="low temperatures">low temperatures</option>
+                                
+                                    <option value="oxidation">oxidation</option>
+                                
+                                    <option value="self-cleaning">self-cleaning</option>
+                                
+                                    <option value="uv irradiation">uv irradiation</option>
+                                
+                                    <option value="weather patterns">weather patterns</option>
+                                
+                                    <option value="low surface energy">low surface energy</option>
+                                
+                                    <option value="outdoor exposure">outdoor exposure</option>
+                                
+                                    <option value="promising candidate for outdoor buildings and devices">promising candidate for outdoor buildings and devices</option>
+                                
+                                    <option value="self-cleaning coatings">self-cleaning coatings</option>
+                                
+                                    <option value="self-cleaning properties">self-cleaning properties</option>
+                                
+                                    <option value="pdms coatings">pdms coatings</option>
+                                
+                                    <option value="pdms coatings with sio2 nanoparticles">pdms coatings with sio2 nanoparticles</option>
+                                
+                                    <option value="sh materials">sh materials</option>
+                                
+                                    <option value="composite knit sensors">composite knit sensors</option>
+                                
+                                    <option value="architecture">architecture</option>
+                                
+                                    <option value="critical factors">critical factors</option>
+                                
+                                    <option value="hydrogen pipelines">hydrogen pipelines</option>
+                                
+                                    <option value="debinding">debinding</option>
+                                
+                                    <option value="calcination">calcination</option>
+                                
+                                    <option value="created surface">created surface</option>
+                                
+                                    <option value="alternating hydrophobic and hydrophilic regions">alternating hydrophobic and hydrophilic regions</option>
+                                
+                                    <option value="roughness">roughness</option>
+                                
+                                    <option value="butterfly wings">butterfly wings</option>
+                                
+                                    <option value="coated glass">coated glass</option>
+                                
+                                    <option value="sol-gel process">sol-gel process</option>
+                                
+                                    <option value="graphene oxide">graphene oxide</option>
+                                
+                                    <option value="lotus leaves">lotus leaves</option>
+                                
+                                    <option value="contact angle of superhydrophobic surface coating">contact angle of superhydrophobic surface coating</option>
+                                
+                                    <option value="sliding angle of superhydrophobic surface coating">sliding angle of superhydrophobic surface coating</option>
+                                
+                                    <option value="dentin-dental restoration margins">dentin-dental restoration margins</option>
+                                
+                                    <option value="enamel-dental restoration margins">enamel-dental restoration margins</option>
+                                
+                                    <option value="microleakage of dental restorations">microleakage of dental restorations</option>
+                                
+                                    <option value="surface energy">surface energy</option>
+                                
+                                    <option value="euphorbia obesa surface">euphorbia obesa surface</option>
+                                
+                                    <option value="pesticides">pesticides</option>
+                                
+                                    <option value="salvinia molesta surface">salvinia molesta surface</option>
+                                
+                                    <option value="air">air</option>
+                                
+                                    <option value="rainwater">rainwater</option>
+                                
+                                    <option value="zhang et al.">zhang et al.</option>
+                                
+                                    <option value="rose petals">rose petals</option>
+                                
+                                    <option value="contact angle (ca)">contact angle (ca)</option>
+                                
+                                    <option value="low tilting angle">low tilting angle</option>
+                                
+                                    <option value="chestnut fibers">chestnut fibers</option>
+                                
+                                    <option value="improved movements">improved movements</option>
+                                
+                                    <option value="rice leaves">rice leaves</option>
+                                
+                                    <option value="vertically oriented surfaces">vertically oriented surfaces</option>
+                                
+                                    <option value="compressible plastron">compressible plastron</option>
+                                
+                                    <option value="plant surfaces">plant surfaces</option>
+                                
+                                    <option value="surface wrinkling">surface wrinkling</option>
+                                
+                                    <option value="fibroin concentration">fibroin concentration</option>
+                                
+                                    <option value="more compact microgels">more compact microgels</option>
+                                
+                                    <option value="silk fibrils">silk fibrils</option>
+                                
+                                    <option value="porous sheet-like structures">porous sheet-like structures</option>
+                                
+                                    <option value="release kinetics">release kinetics</option>
+                                
+                                    <option value="rhodamine diffusion">rhodamine diffusion</option>
+                                
+                                    <option value="fragile bone">fragile bone</option>
+                                
+                                    <option value="pore volume">pore volume</option>
+                                
+                                    <option value="carbon dioxide residue">carbon dioxide residue</option>
+                                
+                                    <option value="cell storage effectiveness">cell storage effectiveness</option>
+                                
+                                    <option value="multi-zonal scaffolds">multi-zonal scaffolds</option>
+                                
+                                    <option value="μct">μct</option>
+                                
+                                    <option value="templated method">templated method</option>
+                                
+                                    <option value="gradual variations">gradual variations</option>
+                                
+                                    <option value="fick's second law of diffusion">fick's second law of diffusion</option>
+                                
+                                    <option value="non-integer">non-integer</option>
+                                
+                                    <option value="directly writing complex structures">directly writing complex structures</option>
+                                
+                                    <option value="material surfaces">material surfaces</option>
+                                
+                                    <option value="ultrashort laser pulses">ultrashort laser pulses</option>
+                                
+                                    <option value="donut-shaped laser beams">donut-shaped laser beams</option>
+                                
+                                    <option value="laser interference">laser interference</option>
+                                
+                                    <option value="tight laser focusing">tight laser focusing</option>
+                                
+                                    <option value="fluorocarbon plasma">fluorocarbon plasma</option>
+                                
+                                    <option value="wettability">wettability</option>
+                                
+                                    <option value="ice growth">ice growth</option>
+                                
+                                    <option value="ice nucleation">ice nucleation</option>
+                                
+                                    <option value="surface functionality">surface functionality</option>
+                                
+                                    <option value="surface robustness">surface robustness</option>
+                                
+                                    <option value="surface wettability">surface wettability</option>
+                                
+                                    <option value="p. noblilis byssus threads">p. noblilis byssus threads</option>
+                                
+                                    <option value="consistent energy dissipation">consistent energy dissipation</option>
+                                
+                                    <option value="molecular damage">molecular damage</option>
+                                
+                                    <option value="s_unload/s_load ratio">s_unload/s_load ratio</option>
+                                
+                                    <option value="self-healing">self-healing</option>
+                                
+                                    <option value="second order atorial saxs peak">second order atorial saxs peak</option>
+                                
+                                    <option value="intensity">intensity</option>
+                                
+                                    <option value="chemical reactions">chemical reactions</option>
+                                
+                                    <option value="processes">processes</option>
+                                
+                                    <option value="external intervention">external intervention</option>
+                                
+                                    <option value="liver">liver</option>
+                                
+                                    <option value="trauma or injury">trauma or injury</option>
+                                
+                                    <option value="beta-sheet conformation">beta-sheet conformation</option>
+                                
+                                    <option value="carbonyl c=o stretching vibration">carbonyl c=o stretching vibration</option>
+                                
+                                    <option value="bridging">bridging</option>
+                                
+                                    <option value="organic matter">organic matter</option>
+                                
+                                    <option value="crack deflection">crack deflection</option>
+                                
+                                    <option value="chemical gradients">chemical gradients</option>
+                                
+                                    <option value="fiber boundaries">fiber boundaries</option>
+                                
+                                    <option value="hap fiber boundaries">hap fiber boundaries</option>
+                                
+                                    <option value="perikymata">perikymata</option>
+                                
+                                    <option value="organic interruptions">organic interruptions</option>
+                                
+                                    <option value="laminated structure">laminated structure</option>
+                                
+                                    <option value="interface">interface</option>
+                                
+                                    <option value="penetration through">penetration through</option>
+                                
+                                    <option value="cell interfaces">cell interfaces</option>
+                                
+                                    <option value="crack closure">crack closure</option>
+                                
+                                    <option value="interfaces between sandwich layers">interfaces between sandwich layers</option>
+                                
+                                    <option value="vascular bundles">vascular bundles</option>
+                                
+                                    <option value="t pullout">t pullout</option>
+                                
+                                    <option value="ceramic-metal interfaces">ceramic-metal interfaces</option>
+                                
+                                    <option value="biopolymer interface">biopolymer interface</option>
+                                
+                                    <option value="crack propagation condition">crack propagation condition</option>
+                                
+                                    <option value="ti6al4v alloy">ti6al4v alloy</option>
+                                
+                                    <option value="chts">chts</option>
+                                
+                                    <option value="skeletal components">skeletal components</option>
+                                
+                                    <option value="nanoindentation samples">nanoindentation samples</option>
+                                
+                                    <option value="silent sutures">silent sutures</option>
+                                
+                                    <option value="progressively trapped">progressively trapped</option>
+                                
+                                    <option value="diffused damage">diffused damage</option>
+                                
+                                    <option value="silica layers">silica layers</option>
+                                
+                                    <option value="atomic bonds">atomic bonds</option>
+                                
+                                    <option value="circular hole">circular hole</option>
+                                
+                                    <option value="peak internal material stress">peak internal material stress</option>
+                                
+                                    <option value="structural irregularities">structural irregularities</option>
+                                
+                                    <option value="elongated crack">elongated crack</option>
+                                
+                                    <option value="engineered materials">engineered materials</option>
+                                
+                                    <option value="mode i">mode i</option>
+                                
+                                    <option value="anisotropic lamellae">anisotropic lamellae</option>
+                                
+                                    <option value="bovine enamel">bovine enamel</option>
+                                
+                                    <option value="al-cf layers">al-cf layers</option>
+                                
+                                    <option value="cracks between layers">cracks between layers</option>
+                                
+                                    <option value="ti layers">ti layers</option>
+                                
+                                    <option value="tial3 layers">tial3 layers</option>
+                                
+                                    <option value="spokes">spokes</option>
+                                
+                                    <option value="cementitious materials">cementitious materials</option>
+                                
+                                    <option value="brittle enamel">brittle enamel</option>
+                                
+                                    <option value="dentin-enamel junction (dej)">dentin-enamel junction (dej)</option>
+                                
+                                    <option value="enamel rod tracks">enamel rod tracks</option>
+                                
+                                    <option value="giant panda tooth enamel">giant panda tooth enamel</option>
+                                
+                                    <option value="loading">loading</option>
+                                
+                                    <option value="specimens">specimens</option>
+                                
+                                    <option value="enamel rods">enamel rods</option>
+                                
+                                    <option value="decussation">decussation</option>
+                                
+                                    <option value="hydroxyapatite crystallites">hydroxyapatite crystallites</option>
+                                
+                                    <option value="undulation">undulation</option>
+                                
+                                    <option value="human tooth enamel">human tooth enamel</option>
+                                
+                                    <option value="organic content">organic content</option>
+                                
+                                    <option value="gradient of structures">gradient of structures</option>
+                                
+                                    <option value="precise mineral arrangement">precise mineral arrangement</option>
+                                
+                                    <option value="debonding">debonding</option>
+                                
+                                    <option value="hierarchical microstructure">hierarchical microstructure</option>
+                                
+                                    <option value="peak bite forces">peak bite forces</option>
+                                
+                                    <option value="vertebrate">vertebrate</option>
+                                
+                                    <option value="hard platelet aspect ratio">hard platelet aspect ratio</option>
+                                
+                                    <option value="breaking">breaking</option>
+                                
+                                    <option value="failure properties">failure properties</option>
+                                
+                                    <option value="slight twist">slight twist</option>
+                                
+                                    <option value="stress-strain behavior">stress-strain behavior</option>
+                                
+                                    <option value="twist angle">twist angle</option>
+                                
+                                    <option value="very high loads">very high loads</option>
+                                
+                                    <option value="mineral components">mineral components</option>
+                                
+                                    <option value="protein components">protein components</option>
+                                
+                                    <option value="twisted fibers">twisted fibers</option>
+                                
+                                    <option value="untwisted fibers">untwisted fibers</option>
+                                
+                                    <option value="crack resistance">crack resistance</option>
+                                
+                                    <option value="cracking modes">cracking modes</option>
+                                
+                                    <option value="form birefringence">form birefringence</option>
+                                
+                                    <option value="apdmes films">apdmes films</option>
+                                
+                                    <option value="processed cellulose fibers">processed cellulose fibers</option>
+                                
+                                    <option value="interphase">interphase</option>
+                                
+                                    <option value="determines environmental stability">determines environmental stability</option>
+                                
+                                    <option value="determines mechanical properties">determines mechanical properties</option>
+                                
+                                    <option value="suitable interfaces">suitable interfaces</option>
+                                
+                                    <option value="adhesive interface">adhesive interface</option>
+                                
+                                    <option value="matrix-reinforcement interface">matrix-reinforcement interface</option>
+                                
+                                    <option value="stresses">stresses</option>
+                                
+                                    <option value="building_blocks">building_blocks</option>
+                                
+                                    <option value="nacreous aragonite">nacreous aragonite</option>
+                                
+                                    <option value="prismatic calcite">prismatic calcite</option>
+                                
+                                    <option value="failure surface">failure surface</option>
+                                
+                                    <option value="loading axis">loading axis</option>
+                                
+                                    <option value="slip">slip</option>
+                                
+                                    <option value="bulk modulus (d)">bulk modulus (d)</option>
+                                
+                                    <option value="deviatoric strain invariant">deviatoric strain invariant</option>
+                                
+                                    <option value="turtle shell joints">turtle shell joints</option>
+                                
+                                    <option value="shear modulus (g)">shear modulus (g)</option>
+                                
+                                    <option value="viscoelastic material model">viscoelastic material model</option>
+                                
+                                    <option value="dehydrated bone tissue">dehydrated bone tissue</option>
+                                
+                                    <option value="regime i">regime i</option>
+                                
+                                    <option value="parameter 1 (k1)">parameter 1 (k1)</option>
+                                
+                                    <option value="parameter 2 (k2)">parameter 2 (k2)</option>
+                                
+                                    <option value="density ratio">density ratio</option>
+                                
+                                    <option value="viscous behavior">viscous behavior</option>
+                                
+                                    <option value="alcian blue histochemical stain">alcian blue histochemical stain</option>
+                                
+                                    <option value="fluorescence analysis detects">fluorescence analysis detects</option>
+                                
+                                    <option value="rigid materials">rigid materials</option>
+                                
+                                    <option value="plant cell wall">plant cell wall</option>
+                                
+                                    <option value="structural biopolymers">structural biopolymers</option>
+                                
+                                    <option value="brightness">brightness</option>
+                                
+                                    <option value="traditional plastic films">traditional plastic films</option>
+                                
+                                    <option value="cellulose nanofibers">cellulose nanofibers</option>
+                                
+                                    <option value="color">color</option>
+                                
+                                    <option value="density">density</option>
+                                
+                                    <option value="fiber diameter">fiber diameter</option>
+                                
+                                    <option value="fluorescent properties">fluorescent properties</option>
+                                
+                                    <option value="formation uniformity">formation uniformity</option>
+                                
+                                    <option value="gloss">gloss</option>
+                                
+                                    <option value="light-scattering behavior">light-scattering behavior</option>
+                                
+                                    <option value="microsized wood fibers">microsized wood fibers</option>
+                                
+                                    <option value="optical transmission haze">optical transmission haze</option>
+                                
+                                    <option value="transparent wood composite">transparent wood composite</option>
+                                
+                                    <option value="aging resistance">aging resistance</option>
+                                
+                                    <option value="quercetin distribution">quercetin distribution</option>
+                                
+                                    <option value="protein hfbi-dcbd">protein hfbi-dcbd</option>
+                                
+                                    <option value="functional material">functional material</option>
+                                
+                                    <option value="cellulose chains">cellulose chains</option>
+                                
+                                    <option value="an">an</option>
+                                
+                                    <option value="macrofibrils">macrofibrils</option>
+                                
+                                    <option value="quercetin modification">quercetin modification</option>
+                                
+                                    <option value="crystallinecellulose">crystallinecellulose</option>
+                                
+                                    <option value="nickel-plated luffa sponge">nickel-plated luffa sponge</option>
+                                
+                                    <option value="conjugated structures">conjugated structures</option>
+                                
+                                    <option value="phenolic hydroxyl groups">phenolic hydroxyl groups</option>
+                                
+                                    <option value="unsaturated structures">unsaturated structures</option>
+                                
+                                    <option value="biomass">biomass</option>
+                                
+                                    <option value="natural wood">natural wood</option>
+                                
+                                    <option value="lignin-derived carbon source">lignin-derived carbon source</option>
+                                
+                                    <option value="soft robot offers">soft robot offers</option>
+                                
+                                    <option value="nanocatalysts">nanocatalysts</option>
+                                
+                                    <option value="pitch">pitch</option>
+                                
+                                    <option value="humidity-responsive deformation variation is recorded during">humidity-responsive deformation variation is recorded during</option>
+                                
+                                    <option value="structural color production">structural color production</option>
+                                
+                                    <option value="four-phase two-plane electrodes">four-phase two-plane electrodes</option>
+                                
+                                    <option value="single-plane patterns">single-plane patterns</option>
+                                
+                                    <option value="radius">radius</option>
+                                
+                                    <option value="r">r</option>
+                                
+                                    <option value="sampling">sampling</option>
+                                
+                                    <option value="soft robot integrates">soft robot integrates</option>
+                                
+                                    <option value="seed-like structures">seed-like structures</option>
+                                
+                                    <option value="soft robots">soft robots</option>
+                                
+                                    <option value="sensing">sensing</option>
+                                
+                                    <option value="ionic polymer metal composites (ipmcs)">ionic polymer metal composites (ipmcs)</option>
+                                
+                                    <option value="simplicity">simplicity</option>
+                                
+                                    <option value="phenomenological models">phenomenological models</option>
+                                
+                                    <option value="spatially homogeneous humid air environment">spatially homogeneous humid air environment</option>
+                                
+                                    <option value="gradient structures">gradient structures</option>
+                                
+                                    <option value="biomimetic 4d printing">biomimetic 4d printing</option>
+                                
+                                    <option value="1">1</option>
+                                
+                                    <option value="2">2</option>
+                                
+                                    <option value="7">7</option>
+                                
+                                    <option value="8">8</option>
+                                
+                                    <option value="3">3</option>
+                                
+                                    <option value="9">9</option>
+                                
+                                    <option value="10">10</option>
+                                
+                                    <option value="11">11</option>
+                                
+                                    <option value="20">20</option>
+                                
+                                    <option value="4">4</option>
+                                
+                                    <option value="12">12</option>
+                                
+                                    <option value="14">14</option>
+                                
+                                    <option value="13">13</option>
+                                
+                                    <option value="15">15</option>
+                                
+                                    <option value="16">16</option>
+                                
+                                    <option value="17">17</option>
+                                
+                                    <option value="18">18</option>
+                                
+                                    <option value="19">19</option>
+                                
+                                    <option value="30">30</option>
+                                
+                                    <option value="21">21</option>
+                                
+                                    <option value="22">22</option>
+                                
+                                    <option value="23">23</option>
+                                
+                                    <option value="24">24</option>
+                                
+                                    <option value="25">25</option>
+                                
+                                    <option value="26">26</option>
+                                
+                                    <option value="[4, 14]">[4, 14]</option>
+                                
+                                    <option value="mercury intrusion porosimetry (mip)">mercury intrusion porosimetry (mip)</option>
+                                
+                                    <option value="[6]">[6]</option>
+                                
+                                    <option value="crack initiation points">crack initiation points</option>
+                                
+                                    <option value="crack path">crack path</option>
+                                
+                                    <option value="geometry">geometry</option>
+                                
+                                    <option value="individual pores">individual pores</option>
+                                
+                                    <option value="interconnect size distribution">interconnect size distribution</option>
+                                
+                                    <option value="maximum diameter">maximum diameter</option>
+                                
+                                    <option value="pore size distribution">pore size distribution</option>
+                                
+                                    <option value="volume">volume</option>
+                                
+                                    <option value="[1, 2]">[1, 2]</option>
+                                
+                                    <option value="[5, 6]">[5, 6]</option>
+                                
+                                    <option value="3dps-cmr-bmp2">3dps-cmr-bmp2</option>
+                                
+                                    <option value="control group">control group</option>
+                                
+                                    <option value="[3, 4]">[3, 4]</option>
+                                
+                                    <option value="27">27</option>
+                                
+                                    <option value="28">28</option>
+                                
+                                    <option value="29">29</option>
+                                
+                                    <option value="[3, 4, 14]">[3, 4, 14]</option>
+                                
+                                    <option value="0">0</option>
+                                
+                                    <option value="cs component">cs component</option>
+                                
+                                    <option value="sis film">sis film</option>
+                                
+                                    <option value="cassie-baxter regime">cassie-baxter regime</option>
+                                
+                                    <option value="hydrophilic surfaces">hydrophilic surfaces</option>
+                                
+                                    <option value="hydrophobic surfaces">hydrophobic surfaces</option>
+                                
+                                    <option value="wenzel model">wenzel model</option>
+                                
+                                    <option value="wenzel regime">wenzel regime</option>
+                                
+                                    <option value="prepared surfaces">prepared surfaces</option>
+                                
+                                    <option value="time duration">time duration</option>
+                                
+                                    <option value="bone structure (6)">bone structure (6)</option>
+                                
+                                    <option value="cellular activities (9)">cellular activities (9)</option>
+                                
+                                    <option value="early-stage cell differentiation (15)">early-stage cell differentiation (15)</option>
+                                
+                                    <option value="extrusion-based additive manufacturing system (1)">extrusion-based additive manufacturing system (1)</option>
+                                
+                                    <option value="importance (17)">importance (17)</option>
+                                
+                                    <option value="mechanical properties (8)">mechanical properties (8)</option>
+                                
+                                    <option value="multiwall carbon nanotubes (mwcnts) (5)">multiwall carbon nanotubes (mwcnts) (5)</option>
+                                
+                                    <option value="nanoscale elastic modulus (12)">nanoscale elastic modulus (12)</option>
+                                
+                                    <option value="nanoscale hardness (11)">nanoscale hardness (11)</option>
+                                
+                                    <option value="polycaprolactone (pcl) matrix (3)">polycaprolactone (pcl) matrix (3)</option>
+                                
+                                    <option value="scaffold mineralization (14)">scaffold mineralization (14)</option>
+                                
+                                    <option value="signaling pathways (13)">signaling pathways (13)</option>
+                                
+                                    <option value="surface roughness (10)">surface roughness (10)</option>
+                                
+                                    <option value="hydrophilicity">hydrophilicity</option>
+                                
+                                    <option value="hydrophilic dental/medical titanium materials">hydrophilic dental/medical titanium materials</option>
+                                
+                                    <option value="copolymers">copolymers</option>
+                                
+                                    <option value="cnt-coated samples">cnt-coated samples</option>
+                                
+                                    <option value="laser processing">laser processing</option>
+                                
+                                    <option value="micro/nanostructured molds">micro/nanostructured molds</option>
+                                
+                                    <option value="polycaprolactone (pcl)">polycaprolactone (pcl)</option>
+                                
+                                    <option value="printed structured surface samples">printed structured surface samples</option>
+                                
+                                    <option value="smooth surface samples">smooth surface samples</option>
+                                
+                                    <option value="pcbs">pcbs</option>
+                                
+                                    <option value="hierarchical scaffold composed of sis and cs">hierarchical scaffold composed of sis and cs</option>
+                                
+                                    <option value="sis">sis</option>
+                                
+                                    <option value="low-temperature solid-state process">low-temperature solid-state process</option>
+                                
+                                    <option value="birds">birds</option>
+                                
+                                    <option value="aerodynamic loading">aerodynamic loading</option>
+                                
+                                    <option value="complementary features">complementary features</option>
+                                
+                                    <option value="composite material utilization">composite material utilization</option>
+                                
+                                    <option value="efficient flight">efficient flight</option>
+                                
+                                    <option value="tailored shapes">tailored shapes</option>
+                                
+                                    <option value="feathers">feathers</option>
+                                
+                                    <option value="airflow">airflow</option>
+                                
+                                    <option value="barbs">barbs</option>
+                                
+                                    <option value="barbules">barbules</option>
+                                
+                                    <option value="drag">drag</option>
+                                
+                                    <option value="lift">lift</option>
+                                
+                                    <option value="rachis">rachis</option>
+                                
+                                    <option value="anisotropic behavior">anisotropic behavior</option>
+                                
+                                    <option value="anisotropic mechanical behavior">anisotropic mechanical behavior</option>
+                                
+                                    <option value="elastic-to-damage behavior">elastic-to-damage behavior</option>
+                                
+                                    <option value="good mechanical properties">good mechanical properties</option>
+                                
+                                    <option value="periosteal region (17)">periosteal region (17)</option>
+                                
+                                    <option value="dense cortical bone">dense cortical bone</option>
+                                
+                                    <option value="hard bone tissue">hard bone tissue</option>
+                                
+                                    <option value="dea">dea</option>
+                                
+                                    <option value="em_actuators">em_actuators</option>
+                                
+                                    <option value="em_motors">em_motors</option>
+                                
+                                    <option value="elevated_pressure">elevated_pressure</option>
+                                
+                                    <option value="increased_volume">increased_volume</option>
+                                
+                                    <option value="reduced_velocity">reduced_velocity</option>
+                                
+                                    <option value="barb ridges">barb ridges</option>
+                                
+                                    <option value="ehvi">ehvi</option>
+                                
+                                    <option value="exploration">exploration</option>
+                                
+                                    <option value="pareto-optimal solutions">pareto-optimal solutions</option>
+                                
+                                    <option value="designs far from pareto optimum">designs far from pareto optimum</option>
+                                
+                                    <option value="specific volume optimization">specific volume optimization</option>
+                                
+                                    <option value="tem images">tem images</option>
+                                
+                                    <option value="amyloid fibrils">amyloid fibrils</option>
+                                
+                                    <option value="crack penetration">crack penetration</option>
+                                
+                                    <option value="global mechanical rigidity">global mechanical rigidity</option>
+                                
+                                    <option value="aluminalayers">aluminalayers</option>
+                                
+                                    <option value="polymerinterlayers">polymerinterlayers</option>
+                                
+                                    <option value="polymer coating">polymer coating</option>
+                                
+                                    <option value="βg amyloid fibrils">βg amyloid fibrils</option>
+                                
+                                    <option value="ultrathin sio2-anchored pvdf/pe/pvdf porous separator">ultrathin sio2-anchored pvdf/pe/pvdf porous separator</option>
+                                
+                                    <option value="flat-shell composites">flat-shell composites</option>
+                                
+                                    <option value="sparganium stoloniferum">sparganium stoloniferum</option>
+                                
+                                    <option value="bacterial composite">bacterial composite</option>
+                                
+                                    <option value="perfectly hexagonal ts">perfectly hexagonal ts</option>
+                                
+                                    <option value="bamboo slices">bamboo slices</option>
+                                
+                                    <option value="epidermis">epidermis</option>
+                                
+                                    <option value="nanoscale mineral crystals">nanoscale mineral crystals</option>
+                                
+                                    <option value="cartilage damage evolution">cartilage damage evolution</option>
+                                
+                                    <option value="rolling loads">rolling loads</option>
+                                
+                                    <option value="sliding loads">sliding loads</option>
+                                
+                                    <option value="depth">depth</option>
+                                
+                                    <option value="extension direction">extension direction</option>
+                                
+                                    <option value="regularities">regularities</option>
+                                
+                                    <option value="velocity">velocity</option>
+                                
+                                    <option value="fiber network">fiber network</option>
+                                
+                                    <option value="fiberous network">fiberous network</option>
+                                
+                                    <option value="cartilage damage progression model">cartilage damage progression model</option>
+                                
+                                    <option value="collagen fiber structure">collagen fiber structure</option>
+                                
+                                    <option value="stress distribution">stress distribution</option>
+                                
+                                    <option value="maximal stress values">maximal stress values</option>
+                                
+                                    <option value="vertical direction">vertical direction</option>
+                                
+                                    <option value="double-clamped beams">double-clamped beams</option>
+                                
+                                    <option value="models constrained by bulk">models constrained by bulk</option>
+                                
+                                    <option value="single-clamped beams">single-clamped beams</option>
+                                
+                                    <option value="cartilage deformation">cartilage deformation</option>
+                                
+                                    <option value="cartilage matrix">cartilage matrix</option>
+                                
+                                    <option value="damage evolution velocity">damage evolution velocity</option>
+                                
+                                    <option value="early period of cartilage damage">early period of cartilage damage</option>
+                                
+                                    <option value="biomimetic hierarchical thin-wall materials">biomimetic hierarchical thin-wall materials</option>
+                                
+                                    <option value="mushroom caps">mushroom caps</option>
+                                
+                                    <option value="adhesion behavior">adhesion behavior</option>
+                                
+                                    <option value="distance from far end of adhesive">distance from far end of adhesive</option>
+                                
+                                    <option value="exponential decay law">exponential decay law</option>
+                                
+                                    <option value="hierarchical adhesive systems">hierarchical adhesive systems</option>
+                                
+                                    <option value="microbeams">microbeams</option>
+                                
+                                    <option value="cross section">cross section</option>
+                                
+                                    <option value="long axis">long axis</option>
+                                
+                                    <option value="tension tests">tension tests</option>
+                                
+                                    <option value="torsion tests">torsion tests</option>
+                                
+                                    <option value="power-law characteristics">power-law characteristics</option>
+                                
+                                    <option value="damage">damage</option>
+                                
+                                    <option value="disruption">disruption</option>
+                                
+                                    <option value="anisotropic spring networks">anisotropic spring networks</option>
+                                
+                                    <option value="collagen networks">collagen networks</option>
+                                
+                                    <option value="abalone nacre">abalone nacre</option>
+                                
+                                    <option value="aragonite tiles">aragonite tiles</option>
+                                
+                                    <option value="layered structures">layered structures</option>
+                                
+                                    <option value="mesolayer structure">mesolayer structure</option>
+                                
+                                    <option value="significance on mechanical behavior">significance on mechanical behavior</option>
+                                
+                                    <option value="formation of other layered structures">formation of other layered structures</option>
+                                
+                                    <option value="inhibiting growth of ts structures">inhibiting growth of ts structures</option>
+                                
+                                    <option value="soft robotic gripper">soft robotic gripper</option>
+                                
+                                    <option value="collagen nanospheres">collagen nanospheres</option>
+                                
+                                    <option value="dynamic mechanical analysis (dma)">dynamic mechanical analysis (dma)</option>
+                                
+                                    <option value="physicalgelation">physicalgelation</option>
+                                
+                                    <option value="breaking stress">breaking stress</option>
+                                
+                                    <option value="humidity">humidity</option>
+                                
+                                    <option value="work of fracture">work of fracture</option>
+                                
+                                    <option value="hybrid fibers">hybrid fibers</option>
+                                
+                                    <option value="multi-scale mechanisms">multi-scale mechanisms</option>
+                                
+                                    <option value="graphene aerogel">graphene aerogel</option>
+                                
+                                    <option value="crustaceans">crustaceans</option>
+                                
+                                    <option value="ts/lamellae">ts/lamellae</option>
+                                
+                                    <option value="during stretching">during stretching</option>
+                                
+                                    <option value="degree of crystallinity">degree of crystallinity</option>
+                                
+                                    <option value="stretched samples">stretched samples</option>
+                                
+                                    <option value="bighorn sheep horn">bighorn sheep horn</option>
+                                
+                                    <option value="ceramic biomaterials">ceramic biomaterials</option>
+                                
+                                    <option value="gripping power">gripping power</option>
+                                
+                                    <option value="water transport">water transport</option>
+                                
+                                    <option value="crosslink density">crosslink density</option>
+                                
+                                    <option value="interconnectivity">interconnectivity</option>
+                                
+                                    <option value="membranes">membranes</option>
+                                
+                                    <option value="3d printed hydroxyapatite scaffolds">3d printed hydroxyapatite scaffolds</option>
+                                
+                                    <option value="comparable compressive strength and modulus to cancellous bone">comparable compressive strength and modulus to cancellous bone</option>
+                                
+                                    <option value="enhanced attachment, spreading, and proliferation of rabbit bone marrow stem cells">enhanced attachment, spreading, and proliferation of rabbit bone marrow stem cells</option>
+                                
+                                    <option value="faster ca2+ ion release">faster ca2+ ion release</option>
+                                
+                                    <option value="interconnected macroporous structure">interconnected macroporous structure</option>
+                                
+                                    <option value="more mineralized calcium phosphate microcrystals">more mineralized calcium phosphate microcrystals</option>
+                                
+                                    <option value="fgm design">fgm design</option>
+                                
+                                    <option value="interfacial junctions">interfacial junctions</option>
+                                
+                                    <option value="biocontinuousporousshapedmotif">biocontinuousporousshapedmotif</option>
+                                
+                                    <option value="medulla">medulla</option>
+                                
+                                    <option value="radiating layer">radiating layer</option>
+                                
+                                    <option value="spine's core">spine's core</option>
+                                
+                                    <option value="30%-60%">30%-60%</option>
+                                
+                                    <option value="zonal/gradient structures">zonal/gradient structures</option>
+                                
+                                    <option value="palmetto wood">palmetto wood</option>
+                                
+                                    <option value="ha/tcp scaffolds">ha/tcp scaffolds</option>
+                                
+                                    <option value="void">void</option>
+                                
+                                    <option value="material breakdown">material breakdown</option>
+                                
+                                    <option value="cds">cds</option>
+                                
+                                    <option value="si replica">si replica</option>
+                                
+                                    <option value="diatom frustules (substrate)">diatom frustules (substrate)</option>
+                                
+                                    <option value="titanium dioxide nanoparticles">titanium dioxide nanoparticles</option>
+                                
+                                    <option value="mesoporous tio2">mesoporous tio2</option>
+                                
+                                    <option value="mgo/si or si nanostructures">mgo/si or si nanostructures</option>
+                                
+                                    <option value="function of titanium dioxide nanoparticles">function of titanium dioxide nanoparticles</option>
+                                
+                                    <option value="scalp titanium oxides">scalp titanium oxides</option>
+                                
+                                    <option value="titanium dioxide nanoparticles are used for">titanium dioxide nanoparticles are used for</option>
+                                
+                                    <option value="applications">applications</option>
+                                
+                                    <option value="magnesium">magnesium</option>
+                                
+                                    <option value="zinc">zinc</option>
+                                
+                                    <option value="gradient materials">gradient materials</option>
+                                
+                                    <option value="tissue engineering applications">tissue engineering applications</option>
+                                
+                                    <option value="micro/nanocups">micro/nanocups</option>
+                                
+                                    <option value="collagen (cas)">collagen (cas)</option>
+                                
+                                    <option value="degradation">degradation</option>
+                                
+                                    <option value="hydrogen gas">hydrogen gas</option>
+                                
+                                    <option value="multi-material scaffolds">multi-material scaffolds</option>
+                                
+                                    <option value="biodegradable metallic materials">biodegradable metallic materials</option>
+                                
+                                    <option value="excessive inflammation">excessive inflammation</option>
+                                
+                                    <option value="gradual degradation">gradual degradation</option>
+                                
+                                    <option value="initial mechanical support">initial mechanical support</option>
+                                
+                                    <option value="tissue regeneration">tissue regeneration</option>
+                                
+                                    <option value="aluminum">aluminum</option>
+                                
+                                    <option value="bactericidal effects">bactericidal effects</option>
+                                
+                                    <option value="bone morphogenetic proteins">bone morphogenetic proteins</option>
+                                
+                                    <option value="copper">copper</option>
+                                
+                                    <option value="gold">gold</option>
+                                
+                                    <option value="low doses">low doses</option>
+                                
+                                    <option value="osteogenic properties">osteogenic properties</option>
+                                
+                                    <option value="polymer scaffolds">polymer scaffolds</option>
+                                
+                                    <option value="silver">silver</option>
+                                
+                                    <option value="zirconium">zirconium</option>
+                                
+                                    <option value="bacteria">bacteria</option>
+                                
+                                    <option value="cell death">cell death</option>
+                                
+                                    <option value="enzyme inactivation">enzyme inactivation</option>
+                                
+                                    <option value="free radicals">free radicals</option>
+                                
+                                    <option value="fungi">fungi</option>
+                                
+                                    <option value="mechanisms of action">mechanisms of action</option>
+                                
+                                    <option value="potential side effects">potential side effects</option>
+                                
+                                    <option value="proteins inside the bacterial cells">proteins inside the bacterial cells</option>
+                                
+                                    <option value="viruses">viruses</option>
+                                
+                                    <option value="smaller sized np">smaller sized np</option>
+                                
+                                    <option value="nanogranular structure">nanogranular structure</option>
+                                
+                                    <option value="aggregates">aggregates</option>
+                                
+                                    <option value="chemical treatments">chemical treatments</option>
+                                
+                                    <option value="interfacial shear strength">interfacial shear strength</option>
+                                
+                                    <option value="intracrystalline organics">intracrystalline organics</option>
+                                
+                                    <option value="aragonite plates">aragonite plates</option>
+                                
+                                    <option value="localized deformations">localized deformations</option>
+                                
+                                    <option value="nb nanops">nb nanops</option>
+                                
+                                    <option value="pt nanops">pt nanops</option>
+                                
+                                    <option value="sn ions">sn ions</option>
+                                
+                                    <option value="zro2 nanops">zro2 nanops</option>
+                                
+                                    <option value="nanocomposite hydrogels">nanocomposite hydrogels</option>
+                                
+                                    <option value="gold or silver">gold or silver</option>
+                                
+                                    <option value="thermoresponsive properties">thermoresponsive properties</option>
+                                
+                                    <option value="surface treatment">surface treatment</option>
+                                
+                                    <option value="polymer nanocomposites">polymer nanocomposites</option>
+                                
+                                    <option value="cellulose nanocrystals">cellulose nanocrystals</option>
+                                
+                                    <option value="plasmonic nanoparticles">plasmonic nanoparticles</option>
+                                
+                                    <option value="upconverting or luminescent dyes">upconverting or luminescent dyes</option>
+                                
+                                    <option value="hexagonally ordered, vertically oriented pvp domains">hexagonally ordered, vertically oriented pvp domains</option>
+                                
+                                    <option value="polishing substrate">polishing substrate</option>
+                                
+                                    <option value="molecular packing">molecular packing</option>
+                                
+                                    <option value="increasing shift in (s) values">increasing shift in (s) values</option>
+                                
+                                    <option value="polymer chains">polymer chains</option>
+                                
+                                    <option value="cancer cells">cancer cells</option>
+                                
+                                    <option value="drugs">drugs</option>
+                                
+                                    <option value="efficacy">efficacy</option>
+                                
+                                    <option value="improved biocompatibility">improved biocompatibility</option>
+                                
+                                    <option value="reduce toxicity">reduce toxicity</option>
+                                
+                                    <option value="side effects">side effects</option>
+                                
+                                    <option value="surface modification">surface modification</option>
+                                
+                                    <option value="tissues">tissues</option>
+                                
+                                    <option value="ion release">ion release</option>
+                                
+                                    <option value="zinc finger proteins">zinc finger proteins</option>
+                                
+                                    <option value="polymer-coated carbon nanotube">polymer-coated carbon nanotube</option>
+                                
+                                    <option value="ceramic matrix composite">ceramic matrix composite</option>
+                                
+                                    <option value="pressure">pressure</option>
+                                
+                                    <option value="thermal degradation">thermal degradation</option>
+                                
+                                    <option value="framework materials">framework materials</option>
+                                
+                                    <option value="evaporation-induced self-assembly approach">evaporation-induced self-assembly approach</option>
+                                
+                                    <option value="cnc structure">cnc structure</option>
+                                
+                                    <option value="precursor solution">precursor solution</option>
+                                
+                                    <option value="lipss">lipss</option>
+                                
+                                    <option value="bacterial morphology">bacterial morphology</option>
+                                
+                                    <option value="complex surface structures">complex surface structures</option>
+                                
+                                    <option value="scaling laws">scaling laws</option>
+                                
+                                    <option value="opvs">opvs</option>
+                                
+                                    <option value="clay minerals">clay minerals</option>
+                                
+                                    <option value="scaffolds with mechanical properties matching native tissue at defect sites">scaffolds with mechanical properties matching native tissue at defect sites</option>
+                                
+                                    <option value="nano-structures">nano-structures</option>
+                                
+                                    <option value="renewable biodegradable scaffolds">renewable biodegradable scaffolds</option>
+                                
+                                    <option value="ai">ai</option>
+                                
+                                    <option value="was also characterized using afm">was also characterized using afm</option>
+                                
+                                    <option value="varying orientations">varying orientations</option>
+                                
+                                    <option value="carbon- and formvar-coated copper tem grids">carbon- and formvar-coated copper tem grids</option>
+                                
+                                    <option value="esem">esem</option>
+                                
+                                    <option value="sonication">sonication</option>
+                                
+                                    <option value="tem">tem</option>
+                                
+                                    <option value="metallicnanoparticles">metallicnanoparticles</option>
+                                
+                                    <option value="hemoglobin">hemoglobin</option>
+                                
+                                    <option value="red blood cell production">red blood cell production</option>
+                                
+                                    <option value="nanotubular materials">nanotubular materials</option>
+                                
+                                    <option value="coefficient of thermal expansion (cte)">coefficient of thermal expansion (cte)</option>
+                                
+                                    <option value="conformal electronic decals">conformal electronic decals</option>
+                                
+                                    <option value="degradation temperature">degradation temperature</option>
+                                
+                                    <option value="electronic components">electronic components</option>
+                                
+                                    <option value="flexible and transparent electronic devices">flexible and transparent electronic devices</option>
+                                
+                                    <option value="light transmittance">light transmittance</option>
+                                
+                                    <option value="suitability for high-temperature environments">suitability for high-temperature environments</option>
+                                
+                                    <option value="surface texture">surface texture</option>
+                                
+                                    <option value="transparent cellulose nanomaterials">transparent cellulose nanomaterials</option>
+                                
+                                    <option value="layer-by-layer deposition">layer-by-layer deposition</option>
+                                
+                                    <option value="pvam">pvam</option>
+                                
+                                    <option value="barrier properties">barrier properties</option>
+                                
+                                    <option value="highly transparent nano substrate">highly transparent nano substrate</option>
+                                
+                                    <option value="wood aerogel">wood aerogel</option>
+                                
+                                    <option value="acid hydrolysis">acid hydrolysis</option>
+                                
+                                    <option value="glucose">glucose</option>
+                                
+                                    <option value="hectoric clay">hectoric clay</option>
+                                
+                                    <option value="soft wood pulp">soft wood pulp</option>
+                                
+                                    <option value="enzymatic degradability">enzymatic degradability</option>
+                                
+                                    <option value="polymer composite materials">polymer composite materials</option>
+                                
+                                    <option value="shape-memory polymers (smps)">shape-memory polymers (smps)</option>
+                                
+                                    <option value="composite membranes (cs/mag)">composite membranes (cs/mag)</option>
+                                
+                                    <option value="song et al.">song et al.</option>
+                                
+                                    <option value="heat treatment time">heat treatment time</option>
+                                
+                                    <option value="pre-strain">pre-strain</option>
+                                
+                                    <option value="large agglomerates">large agglomerates</option>
+                                
+                                    <option value="compressive behavior">compressive behavior</option>
+                                
+                                    <option value="geometric constraints">geometric constraints</option>
+                                
+                                    <option value="keratin tissue">keratin tissue</option>
+                                
+                                    <option value="compressive modulus">compressive modulus</option>
+                                
+                                    <option value="fracture energy">fracture energy</option>
+                                
+                                    <option value="halpin-tsai s model">halpin-tsai s model</option>
+                                
+                                    <option value="quasi-isotropic laminate approximation">quasi-isotropic laminate approximation</option>
+                                
+                                    <option value="fracture strength of mineral crystals">fracture strength of mineral crystals</option>
+                                
+                                    <option value="biodegradation">biodegradation</option>
+                                
+                                    <option value="cellulose i polymorphs">cellulose i polymorphs</option>
+                                
+                                    <option value="cellulose ii polymorphs">cellulose ii polymorphs</option>
+                                
+                                    <option value="cellulose iii polymorphs">cellulose iii polymorphs</option>
+                                
+                                    <option value="natural nanocellulose platelets (nc)">natural nanocellulose platelets (nc)</option>
+                                
+                                    <option value="water uptake">water uptake</option>
+                                
+                                    <option value="higher level structures">higher level structures</option>
+                                
+                                    <option value="nanometer length scale">nanometer length scale</option>
+                                
+                                    <option value="nfc/hfbi-dcbd/graphene composite">nfc/hfbi-dcbd/graphene composite</option>
+                                
+                                    <option value="recombinant elastomeric protein">recombinant elastomeric protein</option>
+                                
+                                    <option value="use of sacrificial bonds and domains">use of sacrificial bonds and domains</option>
+                                
+                                    <option value="cvd carbon-coated carbonized sponge skeleton">cvd carbon-coated carbonized sponge skeleton</option>
+                                
+                                    <option value="crashworthiness">crashworthiness</option>
+                                
+                                    <option value="currey">currey</option>
+                                
+                                    <option value="fratzl">fratzl</option>
+                                
+                                    <option value="lakes">lakes</option>
+                                
+                                    <option value="qian et al.">qian et al.</option>
+                                
+                                    <option value="compressibility">compressibility</option>
+                                
+                                    <option value="macadamia seeds">macadamia seeds</option>
+                                
+                                    <option value="rigid biological systems">rigid biological systems</option>
+                                
+                                    <option value="mechanical stiffness">mechanical stiffness</option>
+                                
+                                    <option value="dome-shaped structure">dome-shaped structure</option>
+                                
+                                    <option value="contact area">contact area</option>
+                                
+                                    <option value="graphene/pdms array">graphene/pdms array</option>
+                                
+                                    <option value="linear signal output">linear signal output</option>
+                                
+                                    <option value="eight hierarchical levels">eight hierarchical levels</option>
+                                
+                                    <option value="soft biological systems">soft biological systems</option>
+                                
+                                    <option value="biological materials (e.g., bone)">biological materials (e.g., bone)</option>
+                                
+                                    <option value="keratin intermediate filaments">keratin intermediate filaments</option>
+                                
+                                    <option value="multiscale structure">multiscale structure</option>
+                                
+                                    <option value="responsiveness">responsiveness</option>
+                                
+                                    <option value="defect-tolerance">defect-tolerance</option>
+                                
+                                    <option value="hierarchical systems">hierarchical systems</option>
+                                
+                                    <option value="liquid marbles">liquid marbles</option>
+                                
+                                    <option value="gecko feet">gecko feet</option>
+                                
+                                    <option value="distinct grain refinement mechanisms">distinct grain refinement mechanisms</option>
+                                
+                                    <option value="bandgaps">bandgaps</option>
+                                
+                                    <option value="bandwidth">bandwidth</option>
+                                
+                                    <option value="wave filters">wave filters</option>
+                                
+                                    <option value="wave propagation resistance">wave propagation resistance</option>
+                                
+                                    <option value="interfacial effects">interfacial effects</option>
+                                
+                                    <option value="single material">single material</option>
+                                
+                                    <option value="interfacial bonding">interfacial bonding</option>
+                                
+                                    <option value="global failure threshold">global failure threshold</option>
+                                
+                                    <option value="units">units</option>
+                                
+                                    <option value="aliphatic polyesters">aliphatic polyesters</option>
+                                
+                                    <option value="pga">pga</option>
+                                
+                                    <option value="glass transition temperature">glass transition temperature</option>
+                                
+                                    <option value="melting point">melting point</option>
+                                
+                                    <option value="selective laser sintering (sls)">selective laser sintering (sls)</option>
+                                
+                                    <option value="poly(glycolic-acid) (pga)">poly(glycolic-acid) (pga)</option>
+                                
+                                    <option value="poly(lactic acid) (pla)">poly(lactic acid) (pla)</option>
+                                
+                                    <option value="potential applications of these structures">potential applications of these structures</option>
+                                
+                                    <option value="challenges and opportunities">challenges and opportunities</option>
+                                
+                                    <option value="high">high</option>
+                                
+                                    <option value="low">low</option>
+                                
+                                    <option value="first_region">first_region</option>
+                                
+                                    <option value="second_region">second_region</option>
+                                
+                                    <option value="third_region">third_region</option>
+                                
+                                    <option value="large strains">large strains</option>
+                                
+                                    <option value="semi-crystalline rigid puu-poss constructs">semi-crystalline rigid puu-poss constructs</option>
+                                
+                                    <option value="greatest hdf cells-scaffold attachment">greatest hdf cells-scaffold attachment</option>
+                                
+                                    <option value="active textiles">active textiles</option>
+                                
+                                    <option value="soft segments">soft segments</option>
+                                
+                                    <option value="body temperature">body temperature</option>
+                                
+                                    <option value="crystalline anatase tio2 nanoparticles">crystalline anatase tio2 nanoparticles</option>
+                                
+                                    <option value="nanofiber microstructure">nanofiber microstructure</option>
+                                
+                                    <option value="brochosomes">brochosomes</option>
+                                
+                                    <option value="bi-component fibers">bi-component fibers</option>
+                                
+                                    <option value="charge neutralization">charge neutralization</option>
+                                
+                                    <option value="conductive polymers">conductive polymers</option>
+                                
+                                    <option value="fracture resistance">fracture resistance</option>
+                                
+                                    <option value="near field electrospinning">near field electrospinning</option>
+                                
+                                    <option value="self-twisting behavior">self-twisting behavior</option>
+                                
+                                    <option value="near-field electrospinning">near-field electrospinning</option>
+                                
+                                    <option value="fiber cross-banding state">fiber cross-banding state</option>
+                                
+                                    <option value="construction">construction</option>
+                                
+                                    <option value="forestry">forestry</option>
+                                
+                                    <option value="paper production">paper production</option>
+                                
+                                    <option value="cosmetics, agricultural products, industrial wastewater treatment">cosmetics, agricultural products, industrial wastewater treatment</option>
+                                
+                                    <option value="structural applications">structural applications</option>
+                                
+                                    <option value="collagenaggregates">collagenaggregates</option>
+                                
+                                    <option value="advanced engineering systems">advanced engineering systems</option>
+                                
+                                    <option value="aerospace">aerospace</option>
+                                
+                                    <option value="electronics">electronics</option>
+                                
+                                    <option value="engineering systems">engineering systems</option>
+                                
+                                    <option value="hydrophobic and superhydrophobic replicas">hydrophobic and superhydrophobic replicas</option>
+                                
+                                    <option value="choice of synthesis method">choice of synthesis method</option>
+                                
+                                    <option value="controlled_electrospinning_systems">controlled_electrospinning_systems</option>
+                                
+                                    <option value="hierarchical_nanofibers">hierarchical_nanofibers</option>
+                                
+                                    <option value="hierarchical_nanostructures">hierarchical_nanostructures</option>
+                                
+                                    <option value="hierarchically_ordered_polymer_nanofibers">hierarchically_ordered_polymer_nanofibers</option>
+                                
+                                    <option value="ceramic nanomaterials">ceramic nanomaterials</option>
+                                
+                                    <option value="collector">collector</option>
+                                
+                                    <option value="high voltage">high voltage</option>
+                                
+                                    <option value="metallic needle">metallic needle</option>
+                                
+                                    <option value="one-dimensional (1d) nanostructures">one-dimensional (1d) nanostructures</option>
+                                
+                                    <option value="polymeric nanofibers">polymeric nanofibers</option>
+                                
+                                    <option value="solvent evaporation">solvent evaporation</option>
+                                
+                                    <option value="syringe">syringe</option>
+                                
+                                    <option value="thermal treatment">thermal treatment</option>
+                                
+                                    <option value="high degree of fiber alignment">high degree of fiber alignment</option>
+                                
+                                    <option value="packing density">packing density</option>
+                                
+                                    <option value="electrostatic spinning">electrostatic spinning</option>
+                                
+                                    <option value="natural polymers">natural polymers</option>
+                                
+                                    <option value="fabrication">fabrication</option>
+                                
+                                    <option value="electrostatic forces">electrostatic forces</option>
+                                
+                                    <option value="micro- or nano-scale materials">micro- or nano-scale materials</option>
+                                
+                                    <option value="spinning principles">spinning principles</option>
+                                
+                                    <option value="ap nanofibers">ap nanofibers</option>
+                                
+                                    <option value="self-bundling pan nanofibers">self-bundling pan nanofibers</option>
+                                
+                                    <option value="3d porous microstructures">3d porous microstructures</option>
+                                
+                                    <option value="micrometers or nanometers">micrometers or nanometers</option>
+                                
+                                    <option value="biocompatible tubular materials">biocompatible tubular materials</option>
+                                
+                                    <option value="produces fibers on micro- or nano-length scale with tailored physical, chemical, and biological properties adaptable to various cellular environments">produces fibers on micro- or nano-length scale with tailored physical, chemical, and biological properties adaptable to various cellular environments</option>
+                                
+                                    <option value="heterogeneous plla/pcl nanofibrous membranes">heterogeneous plla/pcl nanofibrous membranes</option>
+                                
+                                    <option value="cap materials">cap materials</option>
+                                
+                                    <option value="less brittle materials">less brittle materials</option>
+                                
+                                    <option value="highly-hierarchical crossed-lamellar structures">highly-hierarchical crossed-lamellar structures</option>
+                                
+                                    <option value="alligator gar fish scales">alligator gar fish scales</option>
+                                
+                                    <option value="biological armor">biological armor</option>
+                                
+                                    <option value="cross-shaped fibers">cross-shaped fibers</option>
+                                
+                                    <option value="collagen bridging during microcrack opening">collagen bridging during microcrack opening</option>
+                                
+                                    <option value="crack generation near pores promoting closure">crack generation near pores promoting closure</option>
+                                
+                                    <option value="mineral bridge formation during microcrack growth and coalescence">mineral bridge formation during microcrack growth and coalescence</option>
+                                
+                                    <option value="anodized tio2 nanotubes">anodized tio2 nanotubes</option>
+                                
+                                    <option value="core-shell nanomaterials">core-shell nanomaterials</option>
+                                
+                                    <option value="cantilever beam">cantilever beam</option>
+                                
+                                    <option value="biological sample">biological sample</option>
+                                
+                                    <option value="hall-effect sensor">hall-effect sensor</option>
+                                
+                                    <option value="silicon-on-silicon contacts">silicon-on-silicon contacts</option>
+                                
+                                    <option value="electrostatic actuator">electrostatic actuator</option>
+                                
+                                    <option value="cantilever beam detachment">cantilever beam detachment</option>
+                                
+                                    <option value="three/four electrodes in a single plane">three/four electrodes in a single plane</option>
+                                
+                                    <option value="output force">output force</option>
+                                
+                                    <option value="suture interface fracture toughness">suture interface fracture toughness</option>
+                                
+                                    <option value="shear stress">shear stress</option>
+                                
+                                    <option value="conjugation spots">conjugation spots</option>
+                                
+                                    <option value="deformation behavior">deformation behavior</option>
+                                
+                                    <option value="shearing">shearing</option>
+                                
+                                    <option value="atomistic mechanisms">atomistic mechanisms</option>
+                                
+                                    <option value="bonds">bonds</option>
+                                
+                                    <option value="mcl">mcl</option>
+                                
+                                    <option value="secondary interfaces">secondary interfaces</option>
+                                
+                                    <option value="tertiary interfaces">tertiary interfaces</option>
+                                
+                                    <option value="breaking away from the main vertical beams">breaking away from the main vertical beams</option>
+                                
+                                    <option value="diagonal reinforcing struts">diagonal reinforcing struts</option>
+                                
+                                    <option value="dislocations">dislocations</option>
+                                
+                                    <option value="abundantuncrackedligaments">abundantuncrackedligaments</option>
+                                
+                                    <option value="apparentdelaminationandintralamellardebondingoccurring">apparentdelaminationandintralamellardebondingoccurring</option>
+                                
+                                    <option value="fiberrupture">fiberrupture</option>
+                                
+                                    <option value="native oxide layers">native oxide layers</option>
+                                
+                                    <option value="work of adhesion">work of adhesion</option>
+                                
+                                    <option value="elastic energy">elastic energy</option>
+                                
+                                    <option value="interfacial energy">interfacial energy</option>
+                                
+                                    <option value="cosserat-based constitutive model">cosserat-based constitutive model</option>
+                                
+                                    <option value="replica molding">replica molding</option>
+                                
+                                    <option value="stamping">stamping</option>
+                                
+                                    <option value="polyester fabrics">polyester fabrics</option>
+                                
+                                    <option value="bn nanotubes">bn nanotubes</option>
+                                
+                                    <option value="apatite nanocrystals">apatite nanocrystals</option>
+                                
+                                    <option value="plant materials">plant materials</option>
+                                
+                                    <option value="external magnetic energy">external magnetic energy</option>
+                                
+                                    <option value="sisa (solvent-induced self-assembly)">sisa (solvent-induced self-assembly)</option>
+                                
+                                    <option value="dcpa">dcpa</option>
+                                
+                                    <option value="two-dimensional shaped calcium phosphate crystals">two-dimensional shaped calcium phosphate crystals</option>
+                                
+                                    <option value="dcpd">dcpd</option>
+                                
+                                    <option value="homogeneous distribution">homogeneous distribution</option>
+                                
+                                    <option value="lower layer">lower layer</option>
+                                
+                                    <option value="mechanically strengthened mineralized substrate">mechanically strengthened mineralized substrate</option>
+                                
+                                    <option value="hap:0.05eu3+">hap:0.05eu3+</option>
+                                
+                                    <option value="lamellar meso-structured caps">lamellar meso-structured caps</option>
+                                
+                                    <option value="mcpm">mcpm</option>
+                                
+                                    <option value="ocp">ocp</option>
+                                
+                                    <option value="acetone post-treatment">acetone post-treatment</option>
+                                
+                                    <option value="structural integrity">structural integrity</option>
+                                
+                                    <option value="pamam dendrimers">pamam dendrimers</option>
+                                
+                                    <option value="twisted branch">twisted branch</option>
+                                
+                                    <option value="inkjet-based bioprinting">inkjet-based bioprinting</option>
+                                
+                                    <option value="mof layers">mof layers</option>
+                                
+                                    <option value="interfacial toughness">interfacial toughness</option>
+                                
+                                    <option value="flat titanium thin films">flat titanium thin films</option>
+                                
+                                    <option value="significantly reduced">significantly reduced</option>
+                                
+                                    <option value="projection lengths">projection lengths</option>
+                                
+                                    <option value="spin coating">spin coating</option>
+                                
+                                    <option value="mechanical polishing process">mechanical polishing process</option>
+                                
+                                    <option value="mean values">mean values</option>
+                                
+                                    <option value="standard deviation">standard deviation</option>
+                                
+                                    <option value="nti samples">nti samples</option>
+                                
+                                    <option value="equation (1) (3)">equation (1) (3)</option>
+                                
+                                    <option value="exponent n (4)">exponent n (4)</option>
+                                
+                                    <option value="friction (3)">friction (3)</option>
+                                
+                                    <option value="k = 0.05 (8)">k = 0.05 (8)</option>
+                                
+                                    <option value="k = 0.1-0.3 (7)">k = 0.1-0.3 (7)</option>
+                                
+                                    <option value="n = 0.5-0.7 (6)">n = 0.5-0.7 (6)</option>
+                                
+                                    <option value="local friction coefficient (2)">local friction coefficient (2)</option>
+                                
+                                    <option value="fog collection">fog collection</option>
+                                
+                                    <option value="biomimetic surface engineering">biomimetic surface engineering</option>
+                                
+                                    <option value="water droplets">water droplets</option>
+                                
+                                    <option value="superhydrophobic spike surfaces">superhydrophobic spike surfaces</option>
+                                
+                                    <option value="ultralhydrophobic surfaces">ultralhydrophobic surfaces</option>
+                                
+                                    <option value="mathematical models">mathematical models</option>
+                                
+                                    <option value="biomimetic surfaces">biomimetic surfaces</option>
+                                
+                                    <option value="hierarchical assembly">hierarchical assembly</option>
+                                
+                                    <option value="mbu">mbu</option>
+                                
+                                    <option value="hydrophobic alkane chains">hydrophobic alkane chains</option>
+                                
+                                    <option value="foams">foams</option>
+                                
+                                    <option value="pickering emulsion">pickering emulsion</option>
+                                
+                                    <option value="periodic arrangements">periodic arrangements</option>
+                                
+                                    <option value="zwitterionic chnf">zwitterionic chnf</option>
+                                
+                                    <option value="alginate-based solutions">alginate-based solutions</option>
+                                
+                                    <option value="oppositely charged components">oppositely charged components</option>
+                                
+                                    <option value="colloidal-scale assembly forces">colloidal-scale assembly forces</option>
+                                
+                                    <option value="dispersion state">dispersion state</option>
+                                
+                                    <option value="liquid-crystalline (lc) assembly">liquid-crystalline (lc) assembly</option>
+                                
+                                    <option value="surface chemistry">surface chemistry</option>
+                                
+                                    <option value="assembly forces">assembly forces</option>
+                                
+                                    <option value="axial-aspect">axial-aspect</option>
+                                
+                                    <option value="biocolloid">biocolloid</option>
+                                
+                                    <option value="challenges">challenges</option>
+                                
+                                    <option value="creation">creation</option>
+                                
+                                    <option value="desirable performance">desirable performance</option>
+                                
+                                    <option value="environmental applications">environmental applications</option>
+                                
+                                    <option value="environmentally friendly methods">environmentally friendly methods</option>
+                                
+                                    <option value="every feature encoded">every feature encoded</option>
+                                
+                                    <option value="fibrillar nanoparticles">fibrillar nanoparticles</option>
+                                
+                                    <option value="green processes">green processes</option>
+                                
+                                    <option value="initiatives">initiatives</option>
+                                
+                                    <option value="novel materials">novel materials</option>
+                                
+                                    <option value="open new uses">open new uses</option>
+                                
+                                    <option value="performance">performance</option>
+                                
+                                    <option value="pharmaceutical applications">pharmaceutical applications</option>
+                                
+                                    <option value="processability">processability</option>
+                                
+                                    <option value="promising candidate">promising candidate</option>
+                                
+                                    <option value="retain complex structure">retain complex structure</option>
+                                
+                                    <option value="supramolecular architectures">supramolecular architectures</option>
+                                
+                                    <option value="sustainable methods">sustainable methods</option>
+                                
+                                    <option value="unique physicochemical properties">unique physicochemical properties</option>
+                                
+                                    <option value="switchable surface charges">switchable surface charges</option>
+                                
+                                    <option value="alpha-chitin">alpha-chitin</option>
+                                
+                                    <option value="other biopolymers">other biopolymers</option>
+                                
+                                    <option value="biopolymers as building blocks for photonic structures">biopolymers as building blocks for photonic structures</option>
+                                
+                                    <option value="biopolymer integration challenges">biopolymer integration challenges</option>
+                                
+                                    <option value="biotechnology">biotechnology</option>
+                                
+                                    <option value="immunogenicity">immunogenicity</option>
+                                
+                                    <option value="medicine">medicine</option>
+                                
+                                    <option value="renewability">renewability</option>
+                                
+                                    <option value="gellan gum">gellan gum</option>
+                                
+                                    <option value="hydrophilic properties">hydrophilic properties</option>
+                                
+                                    <option value="multiphoton lithography (mpl)">multiphoton lithography (mpl)</option>
+                                
+                                    <option value="nanocomponents">nanocomponents</option>
+                                
+                                    <option value="ease of fabrication into hydrogels">ease of fabrication into hydrogels</option>
+                                
+                                    <option value="non-toxicity">non-toxicity</option>
+                                
+                                    <option value="unique biological and chemical features">unique biological and chemical features</option>
+                                
+                                    <option value="e-beam lithography">e-beam lithography</option>
+                                
+                                    <option value="ion beam lithography">ion beam lithography</option>
+                                
+                                    <option value="algae-derived bioplastics">algae-derived bioplastics</option>
+                                
+                                    <option value="biodegradable polymer derived from algae">biodegradable polymer derived from algae</option>
+                                
+                                    <option value="biodegradable polymer derived from renewable resources">biodegradable polymer derived from renewable resources</option>
+                                
+                                    <option value="cellulose concentration">cellulose concentration</option>
+                                
+                                    <option value="chopped fibers">chopped fibers</option>
+                                
+                                    <option value="fibrous substrate">fibrous substrate</option>
+                                
+                                    <option value="feedstock particle size (ps)">feedstock particle size (ps)</option>
+                                
+                                    <option value="flax">flax</option>
+                                
+                                    <option value="flax waste fibers">flax waste fibers</option>
+                                
+                                    <option value="hemp">hemp</option>
+                                
+                                    <option value="loose fibers">loose fibers</option>
+                                
+                                    <option value="mycelium composite foams">mycelium composite foams</option>
+                                
+                                    <option value="porous structures generated during yeast fermentation">porous structures generated during yeast fermentation</option>
+                                
+                                    <option value="s. cerevisiae">s. cerevisiae</option>
+                                
+                                    <option value="yeast biomass">yeast biomass</option>
+                                
+                                    <option value="preferred orientation">preferred orientation</option>
+                                
+                                    <option value="free polymer chains">free polymer chains</option>
+                                
+                                    <option value="anisotropic patterns">anisotropic patterns</option>
+                                
+                                    <option value="independent of laponite content">independent of laponite content</option>
+                                
+                                    <option value="independent of ratio of organics to inorganics">independent of ratio of organics to inorganics</option>
+                                
+                                    <option value="independent of shearing method">independent of shearing method</option>
+                                
+                                    <option value="lyotropic phases">lyotropic phases</option>
+                                
+                                    <option value="alginate biopolymer">alginate biopolymer</option>
+                                
+                                    <option value="lanthanide ions">lanthanide ions</option>
+                                
+                                    <option value="rapid self-assembly">rapid self-assembly</option>
+                                
+                                    <option value="layered alginate biopolymer-nd(u)">layered alginate biopolymer-nd(u)</option>
+                                
+                                    <option value="reduced processing">reduced processing</option>
+                                
+                                    <option value="solvent resistance">solvent resistance</option>
+                                
+                                    <option value="exocuticle">exocuticle</option>
+                                
+                                    <option value="pdms substrate">pdms substrate</option>
+                                
+                                    <option value="encoded area">encoded area</option>
+                                
+                                    <option value="microfluidic spinning">microfluidic spinning</option>
+                                
+                                    <option value="phase separation">phase separation</option>
+                                
+                                    <option value="micropillar pdms substrates fabrication">micropillar pdms substrates fabrication</option>
+                                
+                                    <option value="composite-periodic-structure">composite-periodic-structure</option>
+                                
+                                    <option value="3d rapid prototyped scaffolds">3d rapid prototyped scaffolds</option>
+                                
+                                    <option value="architectural features">architectural features</option>
+                                
+                                    <option value="intrinsic material properties">intrinsic material properties</option>
+                                
+                                    <option value="efficiency">efficiency</option>
+                                
+                                    <option value="impact energy absorption">impact energy absorption</option>
+                                
+                                    <option value="initial kinetic energy">initial kinetic energy</option>
+                                
+                                    <option value="software package">software package</option>
+                                
+                                    <option value="diffraction-based laser micromachining">diffraction-based laser micromachining</option>
+                                
+                                    <option value="line-focused laser machining">line-focused laser machining</option>
+                                
+                                    <option value="multi-laser interference">multi-laser interference</option>
+                                
+                                    <option value="dimensionless parameters">dimensionless parameters</option>
+                                
+                                    <option value="thin structures">thin structures</option>
+                                
+                                    <option value="mineral interfaces">mineral interfaces</option>
+                                
+                                    <option value="impact energy absorbed">impact energy absorbed</option>
+                                
+                                    <option value="results interpretation">results interpretation</option>
+                                
+                                    <option value="ceramic sutures">ceramic sutures</option>
+                                
+                                    <option value="wet conditions">wet conditions</option>
+                                
+                                    <option value="monotonic loading">monotonic loading</option>
+                                
+                                    <option value="step-wise loading">step-wise loading</option>
+                                
+                                    <option value="alignment response">alignment response</option>
+                                
+                                    <option value="relevant parameters">relevant parameters</option>
+                                
+                                    <option value="specific material composition">specific material composition</option>
+                                
+                                    <option value="inner diameter">inner diameter</option>
+                                
+                                    <option value="reduced modulus">reduced modulus</option>
+                                
+                                    <option value="multiscale modeling approach">multiscale modeling approach</option>
+                                
+                                    <option value="intercalants">intercalants</option>
+                                
+                                    <option value="anatomical structure">anatomical structure</option>
+                                
+                                    <option value="nonlinear elasticity">nonlinear elasticity</option>
+                                
+                                    <option value="authentic values">authentic values</option>
+                                
+                                    <option value="three-level hierarchical model for materials science">three-level hierarchical model for materials science</option>
+                                
+                                    <option value="alpha">alpha</option>
+                                
+                                    <option value="beta">beta</option>
+                                
+                                    <option value="area moment of inertia">area moment of inertia</option>
+                                
+                                    <option value="buckling">buckling</option>
+                                
+                                    <option value="mass distribution">mass distribution</option>
+                                
+                                    <option value="non-uniform porosity">non-uniform porosity</option>
+                                
+                                    <option value="beam-, rod-, and plate-shaped natural materials">beam-, rod-, and plate-shaped natural materials</option>
+                                
+                                    <option value="excessive deformation">excessive deformation</option>
+                                
+                                    <option value="structural instability">structural instability</option>
+                                
+                                    <option value="coconut">coconut</option>
+                                
+                                    <option value="finishing growth layers">finishing growth layers</option>
+                                
+                                    <option value="permanent growth layers">permanent growth layers</option>
+                                
+                                    <option value="water content">water content</option>
+                                
+                                    <option value="fiber-reinforced composites">fiber-reinforced composites</option>
+                                
+                                    <option value="interlaminar fracture">interlaminar fracture</option>
+                                
+                                    <option value="crack redirection behavior">crack redirection behavior</option>
+                                
+                                    <option value="internal density">internal density</option>
+                                
+                                    <option value="exterior">exterior</option>
+                                
+                                    <option value="local mechanical strength">local mechanical strength</option>
+                                
+                                    <option value="mannits shrimp">mannits shrimp</option>
+                                
+                                    <option value="palm stems">palm stems</option>
+                                
+                                    <option value="woodpecker bones">woodpecker bones</option>
+                                
+                                    <option value="low velocity impact">low velocity impact</option>
+                                
+                                    <option value="outer portion">outer portion</option>
+                                
+                                    <option value="multimodal fiber-based sensor">multimodal fiber-based sensor</option>
+                                
+                                    <option value="earlier stages">earlier stages</option>
+                                
+                                    <option value="primary energy dissipation mechanisms">primary energy dissipation mechanisms</option>
+                                
+                                    <option value="mechanism">mechanism</option>
+                                
+                                    <option value="al2o3-reinforced composites">al2o3-reinforced composites</option>
+                                
+                                    <option value="bioinspired laminates">bioinspired laminates</option>
+                                
+                                    <option value="tin-reinforced materials">tin-reinforced materials</option>
+                                
+                                    <option value="computational modeling">computational modeling</option>
+                                
+                                    <option value="drop tower experiments">drop tower experiments</option>
+                                
+                                    <option value="flexural tests">flexural tests</option>
+                                
+                                    <option value="free-fall experiments">free-fall experiments</option>
+                                
+                                    <option value="hopkinson bar tests">hopkinson bar tests</option>
+                                
+                                    <option value="plane strain usage">plane strain usage</option>
+                                
+                                    <option value="plane stress approximations">plane stress approximations</option>
+                                
+                                    <option value="tensile testing">tensile testing</option>
+                                
+                                    <option value="recurring design elements">recurring design elements</option>
+                                
+                                    <option value="attenuation behavior">attenuation behavior</option>
+                                
+                                    <option value="impedance mismatch">impedance mismatch</option>
+                                
+                                    <option value="sacrificial bond behavior">sacrificial bond behavior</option>
+                                
+                                    <option value="nacre-like composite plates">nacre-like composite plates</option>
+                                
+                                    <option value="stresscalculation">stresscalculation</option>
+                                
+                                    <option value="elastic response">elastic response</option>
+                                
+                                    <option value="mechanics">mechanics</option>
+                                
+                                    <option value="increases linearly with strain">increases linearly with strain</option>
+                                
+                                    <option value="post-transformation behavior">post-transformation behavior</option>
+                                
+                                    <option value="transformation behavior">transformation behavior</option>
+                                
+                                    <option value="untreated luffa sponges">untreated luffa sponges</option>
+                                
+                                    <option value="virial stress">virial stress</option>
+                                
+                                    <option value="von mises stress">von mises stress</option>
+                                
+                                    <option value="subunitb">subunitb</option>
+                                
+                                    <option value="strain hardening">strain hardening</option>
+                                
+                                    <option value="categorization">categorization</option>
+                                
+                                    <option value="classification">classification</option>
+                                
+                                    <option value="grouping">grouping</option>
+                                
+                                    <option value="taxonomy">taxonomy</option>
+                                
+                                    <option value="complex fluid flows">complex fluid flows</option>
+                                
+                                    <option value="fundamental forces">fundamental forces</option>
+                                
+                                    <option value="classification scheme">classification scheme</option>
+                                
+                                    <option value="high shear stress">high shear stress</option>
+                                
+                                    <option value="intensive agitation">intensive agitation</option>
+                                
+                                    <option value="intensive agitation of native cellulose materials">intensive agitation of native cellulose materials</option>
+                                
+                                    <option value="atomic force microscopy (afm)">atomic force microscopy (afm)</option>
+                                
+                                    <option value="nanomechanical characterization">nanomechanical characterization</option>
+                                
+                                    <option value="nmr analysis">nmr analysis</option>
+                                
+                                    <option value="optical tweezers">optical tweezers</option>
+                                
+                                    <option value="local young's modulus">local young's modulus</option>
+                                
+                                    <option value="multi-regime analysis (mra)">multi-regime analysis (mra)</option>
+                                
+                                    <option value="cellular mechanical responses">cellular mechanical responses</option>
+                                
+                                    <option value="spatially">spatially</option>
+                                
+                                    <option value="temporally">temporally</option>
+                                
+                                    <option value="suitable technique for studying self-assembly process">suitable technique for studying self-assembly process</option>
+                                
+                                    <option value="nanocellulose fibrils">nanocellulose fibrils</option>
+                                
+                                    <option value="bundles">bundles</option>
+                                
+                                    <option value="single triple helices">single triple helices</option>
+                                
+                                    <option value="non-enzymatic cross-links called ages">non-enzymatic cross-links called ages</option>
+                                
+                                    <option value="experimental studies">experimental studies</option>
+                                
+                                    <option value="glioblastoma multiforme (gbm)">glioblastoma multiforme (gbm)</option>
+                                
+                                    <option value="kink formation">kink formation</option>
+                                
+                                    <option value="modulus values">modulus values</option>
+                                
+                                    <option value="mutations">mutations</option>
+                                
+                                    <option value="pathologies">pathologies</option>
+                                
+                                    <option value="tensile loading conditions">tensile loading conditions</option>
+                                
+                                    <option value="effective stiffness tensor">effective stiffness tensor</option>
+                                
+                                    <option value="intermolecular sliding">intermolecular sliding</option>
+                                
+                                    <option value="triple-helical nanorope geometry">triple-helical nanorope geometry</option>
+                                
+                                    <option value="actin">actin</option>
+                                
+                                    <option value="autofluorescence">autofluorescence</option>
+                                
+                                    <option value="local strain measurement">local strain measurement</option>
+                                
+                                    <option value="low dimensional tensile testing">low dimensional tensile testing</option>
+                                
+                                    <option value="mechanical loading">mechanical loading</option>
+                                
+                                    <option value="mems">mems</option>
+                                
+                                    <option value="raman spectroscopy">raman spectroscopy</option>
+                                
+                                    <option value="strain and molecular structural change mapping">strain and molecular structural change mapping</option>
+                                
+                                    <option value="structural analysis">structural analysis</option>
+                                
+                                    <option value="three-dimensional electron computer tomography">three-dimensional electron computer tomography</option>
+                                
+                                    <option value="x-ray crystallography">x-ray crystallography</option>
+                                
+                                    <option value="mcfs">mcfs</option>
+                                
+                                    <option value="integrins">integrins</option>
+                                
+                                    <option value="cadeposition">cadeposition</option>
+                                
+                                    <option value="stromal cells">stromal cells</option>
+                                
+                                    <option value="b cells">b cells</option>
+                                
+                                    <option value="nanoscaffold">nanoscaffold</option>
+                                
+                                    <option value="biochemical cues">biochemical cues</option>
+                                
+                                    <option value="biomimetic topography">biomimetic topography</option>
+                                
+                                    <option value="bte scaffolds">bte scaffolds</option>
+                                
+                                    <option value="hyperelastic constitutive models">hyperelastic constitutive models</option>
+                                
+                                    <option value="joint motion">joint motion</option>
+                                
+                                    <option value="transversely isotropic mechanical behavior">transversely isotropic mechanical behavior</option>
+                                
+                                    <option value="neo-hookean matrix phase">neo-hookean matrix phase</option>
+                                
+                                    <option value="shear stress-strain curves">shear stress-strain curves</option>
+                                
+                                    <option value="bone remodeling">bone remodeling</option>
+                                
+                                    <option value="hard particles">hard particles</option>
+                                
+                                    <option value="ren-xin wang">ren-xin wang</option>
+                                
+                                    <option value="interdigitation">interdigitation</option>
+                                
+                                    <option value="supertwist">supertwist</option>
+                                
+                                    <option value="in situ tensile testing">in situ tensile testing</option>
+                                
+                                    <option value="asteriscus powders">asteriscus powders</option>
+                                
+                                    <option value="lapillus powders">lapillus powders</option>
+                                
+                                    <option value="continuous-wave laser">continuous-wave laser</option>
+                                
+                                    <option value="high numerical aperture microscope objective">high numerical aperture microscope objective</option>
+                                
+                                    <option value="immersion oil">immersion oil</option>
+                                
+                                    <option value="chemical information">chemical information</option>
+                                
+                                    <option value="nanocellulose-based optical devices">nanocellulose-based optical devices</option>
+                                
+                                    <option value="molecular vibrations">molecular vibrations</option>
+                                
+                                    <option value="selected peaks">selected peaks</option>
+                                
+                                    <option value="soft connective tissues">soft connective tissues</option>
+                                
+                                    <option value="drtmcs">drtmcs</option>
+                                
+                                    <option value="abnormal wnt signaling">abnormal wnt signaling</option>
+                                
+                                    <option value="osteopetrosis">osteopetrosis</option>
+                                
+                                    <option value="paget's disease">paget's disease</option>
+                                
+                                    <option value="dkk1">dkk1</option>
+                                
+                                    <option value="wnt/beta-catenin signaling pathway">wnt/beta-catenin signaling pathway</option>
+                                
+                                    <option value="chondrocytes">chondrocytes</option>
+                                
+                                    <option value="mscs (mesenchymal stem cells)">mscs (mesenchymal stem cells)</option>
+                                
+                                    <option value="bending elastic modulus">bending elastic modulus</option>
+                                
+                                    <option value="biomedical implants">biomedical implants</option>
+                                
+                                    <option value="engineered constructs">engineered constructs</option>
+                                
+                                    <option value="studies 17-23">studies 17-23</option>
+                                
+                                    <option value="sf-mc scaffolds">sf-mc scaffolds</option>
+                                
+                                    <option value="distinct regions">distinct regions</option>
+                                
+                                    <option value="bone resorption">bone resorption</option>
+                                
+                                    <option value="bone zone">bone zone</option>
+                                
+                                    <option value="calcification">calcification</option>
+                                
+                                    <option value="osteopontin (opn)">osteopontin (opn)</option>
+                                
+                                    <option value="growth factors">growth factors</option>
+                                
+                                    <option value="host bone">host bone</option>
+                                
+                                    <option value="new bone tissue inside scaffold">new bone tissue inside scaffold</option>
+                                
+                                    <option value="proliferation">proliferation</option>
+                                
+                                    <option value="co-cr-mo alloy for orthopedic implants">co-cr-mo alloy for orthopedic implants</option>
+                                
+                                    <option value="n=2">n=2</option>
+                                
+                                    <option value="microbuckling">microbuckling</option>
+                                
+                                    <option value="horse hooves">horse hooves</option>
+                                
+                                    <option value="all samples">all samples</option>
+                                
+                                    <option value="n=1">n=1</option>
+                                
+                                    <option value="all geometries">all geometries</option>
+                                
+                                    <option value="n=3">n=3</option>
+                                
+                                    <option value="evolutionary pressure">evolutionary pressure</option>
+                                
+                                    <option value="fracture properties">fracture properties</option>
+                                
+                                    <option value="interface stiffness">interface stiffness</option>
+                                
+                                    <option value="σmax">σmax</option>
+                                
+                                    <option value="scorpion stingers">scorpion stingers</option>
+                                
+                                    <option value="block_copolymer">block_copolymer</option>
+                                
+                                    <option value="energy_storage">energy_storage</option>
+                                
+                                    <option value="biomedical engineering research">biomedical engineering research</option>
+                                
+                                    <option value="biomedical engineering applications">biomedical engineering applications</option>
+                                
+                                    <option value="biomimicry">biomimicry</option>
+                                
+                                    <option value="electronic devices">electronic devices</option>
+                                
+                                    <option value="electronics applications">electronics applications</option>
+                                
+                                    <option value="4d printing">4d printing</option>
+                                
+                                    <option value="graded behavior">graded behavior</option>
+                                
+                                    <option value="spatially varying compositions">spatially varying compositions</option>
+                                
+                                    <option value="synthetic pine cone scales">synthetic pine cone scales</option>
+                                
+                                    <option value="controlling composition">controlling composition</option>
+                                
+                                    <option value="controlling interface">controlling interface</option>
+                                
+                                    <option value="controlling structure">controlling structure</option>
+                                
+                                    <option value="genetic engineering">genetic engineering</option>
+                                
+                                    <option value="multiple layers">multiple layers</option>
+                                
+                                    <option value="multiscales">multiscales</option>
+                                
+                                    <option value="specific functions">specific functions</option>
+                                
+                                    <option value="d-gradients">d-gradients</option>
+                                
+                                    <option value="provide understanding required for">provide understanding required for</option>
+                                
+                                    <option value="bottom-up assembly process">bottom-up assembly process</option>
+                                
+                                    <option value="cambrian fossils">cambrian fossils</option>
+                                
+                                    <option value="4d printing techniques">4d printing techniques</option>
+                                
+                                    <option value="shape changes">shape changes</option>
+                                
+                                    <option value="bamboo">bamboo</option>
+                                
+                                    <option value="beetles">beetles</option>
+                                
+                                    <option value="biomimetic robots">biomimetic robots</option>
+                                
+                                    <option value="enzymatic membrane bioreactor">enzymatic membrane bioreactor</option>
+                                
+                                    <option value="experimental investigations">experimental investigations</option>
+                                
+                                    <option value="gradual transition of compositions or local structures">gradual transition of compositions or local structures</option>
+                                
+                                    <option value="hard external layers">hard external layers</option>
+                                
+                                    <option value="tough internal layers">tough internal layers</option>
+                                
+                                    <option value="collagenous materials">collagenous materials</option>
+                                
+                                    <option value="peg-pu hybrids">peg-pu hybrids</option>
+                                
+                                    <option value="larger mesostructures">larger mesostructures</option>
+                                
+                                    <option value="nanoscale organic layers">nanoscale organic layers</option>
+                                
+                                    <option value="single crystal components">single crystal components</option>
+                                
+                                    <option value="h-bonding">h-bonding</option>
+                                
+                                    <option value="alpha_helix">alpha_helix</option>
+                                
+                                    <option value="mechanical resistance">mechanical resistance</option>
+                                
+                                    <option value="parallel beta-strands">parallel beta-strands</option>
+                                
+                                    <option value="external interactions">external interactions</option>
+                                
+                                    <option value="hardening zone">hardening zone</option>
+                                
+                                    <option value="oxygen-containing functional groups">oxygen-containing functional groups</option>
+                                
+                                    <option value="break concurrently">break concurrently</option>
+                                
+                                    <option value="ah1">ah1</option>
+                                
+                                    <option value="most loops">most loops</option>
+                                
+                                    <option value="simultaneous rupture">simultaneous rupture</option>
+                                
+                                    <option value="applied forces">applied forces</option>
+                                
+                                    <option value="reversible breaking">reversible breaking</option>
+                                
+                                    <option value="glycerol">glycerol</option>
+                                
+                                    <option value="dmso solution">dmso solution</option>
+                                
+                                    <option value="ethylene glycol">ethylene glycol</option>
+                                
+                                    <option value="redundancy">redundancy</option>
+                                
+                                    <option value="alpha-helices (ahs)">alpha-helices (ahs)</option>
+                                
+                                    <option value="adaptation">adaptation</option>
+                                
+                                    <option value="change in environmental conditions">change in environmental conditions</option>
+                                
+                                    <option value="failure of single component">failure of single component</option>
+                                
+                                    <option value="graceful degradation">graceful degradation</option>
+                                
+                                    <option value="parameter insensitivity">parameter insensitivity</option>
+                                
+                                    <option value="redundancies">redundancies</option>
+                                
+                                    <option value="red-bellied woodpecker beak">red-bellied woodpecker beak</option>
+                                
+                                    <option value="defined as">defined as</option>
+                                
+                                    <option value="nanotubular surfaces">nanotubular surfaces</option>
+                                
+                                    <option value="diameter of nanotubes">diameter of nanotubes</option>
+                                
+                                    <option value="eccentricity of nanotubes">eccentricity of nanotubes</option>
+                                
+                                    <option value="nearest neighbor distance">nearest neighbor distance</option>
+                                
+                                    <option value="spatial disorder">spatial disorder</option>
+                                
+                                    <option value="spatial parameters">spatial parameters</option>
+                                
+                                    <option value="voronoi disorder">voronoi disorder</option>
+                                
+                                    <option value="wall thickness">wall thickness</option>
+                                
+                                    <option value="biomedical uses">biomedical uses</option>
+                                
+                                    <option value="gelma-filled vp vials">gelma-filled vp vials</option>
+                                
+                                    <option value="gc/pam hydrogels">gc/pam hydrogels</option>
+                                
+                                    <option value="disordered attenuation elements">disordered attenuation elements</option>
+                                
+                                    <option value="body heat">body heat</option>
+                                
+                                    <option value="high-z elements">high-z elements</option>
+                                
+                                    <option value="locomotion metabolic rate">locomotion metabolic rate</option>
+                                
+                                    <option value="metabolic cost savings during intensive activity">metabolic cost savings during intensive activity</option>
+                                
+                                    <option value="tear strength">tear strength</option>
+                                
+                                    <option value="water vapor permeability">water vapor permeability</option>
+                                
+                                    <option value="collagen nanofibers">collagen nanofibers</option>
+                                
+                                    <option value="regenerated silk nanofibrils">regenerated silk nanofibrils</option>
+                                
+                                    <option value="interfacial phase">interfacial phase</option>
+                                
+                                    <option value="cohesive elements">cohesive elements</option>
+                                
+                                    <option value="cohesive zone model (czm)">cohesive zone model (czm)</option>
+                                
+                                    <option value="finite element model">finite element model</option>
+                                
+                                    <option value="interfacial adhesive layers">interfacial adhesive layers</option>
+                                
+                                    <option value="neutral layer">neutral layer</option>
+                                
+                                    <option value="bottom of bulk">bottom of bulk</option>
+                                
+                                    <option value="bulk">bulk</option>
+                                
+                                    <option value="graphene oxide nanosheets">graphene oxide nanosheets</option>
+                                
+                                    <option value="medium interface">medium interface</option>
+                                
+                                    <option value="strong interface">strong interface</option>
+                                
+                                    <option value="weaker interface">weaker interface</option>
+                                
+                                    <option value="scanning saxs">scanning saxs</option>
+                                
+                                    <option value="materials becoming insensitive to flaws">materials becoming insensitive to flaws</option>
+                                
+                                    <option value="compositional impurity">compositional impurity</option>
+                                
+                                    <option value="seven scale levels">seven scale levels</option>
+                                
+                                    <option value="biologicalcompositesexhibitingstructuralcolor">biologicalcompositesexhibitingstructuralcolor</option>
+                                
+                                    <option value="mechanicalstrength">mechanicalstrength</option>
+                                
+                                    <option value="structural colors">structural colors</option>
+                                
+                                    <option value="traditional bioceramics">traditional bioceramics</option>
+                                
+                                    <option value="hydroxyapatite nanocrystals">hydroxyapatite nanocrystals</option>
+                                
+                                    <option value="functional behavior">functional behavior</option>
+                                
+                                    <option value="calling it hydroxyl apatite">calling it hydroxyl apatite</option>
+                                
+                                    <option value="carbonate substitution">carbonate substitution</option>
+                                
+                                    <option value="distinct infrared absorption spectra">distinct infrared absorption spectra</option>
+                                
+                                    <option value="x-ray diffraction patterns">x-ray diffraction patterns</option>
+                                
+                                    <option value="manifold substitutions">manifold substitutions</option>
+                                
+                                    <option value="pure geological apatite">pure geological apatite</option>
+                                
+                                    <option value="significantly alters">significantly alters</option>
+                                
+                                    <option value="large volume fraction of hard platelets">large volume fraction of hard platelets</option>
+                                
+                                    <option value="mineralized collagen fibril">mineralized collagen fibril</option>
+                                
+                                    <option value="stress redistribution">stress redistribution</option>
+                                
+                                    <option value="compact outer layer">compact outer layer</option>
+                                
+                                    <option value="spongy inner component">spongy inner component</option>
+                                
+                                    <option value="nanoscale elastic behavior">nanoscale elastic behavior</option>
+                                
+                                    <option value="pores or channels">pores or channels</option>
+                                
+                                    <option value="protein content">protein content</option>
+                                
+                                    <option value="acidic glycosaminoglycans">acidic glycosaminoglycans</option>
+                                
+                                    <option value="hydroxyapatite mineral">hydroxyapatite mineral</option>
+                                
+                                    <option value="extreme hardness">extreme hardness</option>
+                                
+                                    <option value="factory for blood cells">factory for blood cells</option>
+                                
+                                    <option value="polysaccharides">polysaccharides</option>
+                                
+                                    <option value="self-healing protective structure">self-healing protective structure</option>
+                                
+                                    <option value="source for calcium">source for calcium</option>
+                                
+                                    <option value="storage depot">storage depot</option>
+                                
+                                    <option value="surprising elasticity">surprising elasticity</option>
+                                
+                                    <option value="mechanical stimuli">mechanical stimuli</option>
+                                
+                                    <option value="shear">shear</option>
+                                
+                                    <option value="streaming potential">streaming potential</option>
+                                
+                                    <option value="brittle calcite layer">brittle calcite layer</option>
+                                
+                                    <option value="concentrated loads">concentrated loads</option>
+                                
+                                    <option value="friction">friction</option>
+                                
+                                    <option value="hard ceramic outer layer">hard ceramic outer layer</option>
+                                
+                                    <option value="mechanical deformation energy">mechanical deformation energy</option>
+                                
+                                    <option value="forceversusdeformationbehavior">forceversusdeformationbehavior</option>
+                                
+                                    <option value="high stiffness">high stiffness</option>
+                                
+                                    <option value="initial stiff regime">initial stiff regime</option>
+                                
+                                    <option value="plateau">plateau</option>
+                                
+                                    <option value="secondary structures">secondary structures</option>
+                                
+                                    <option value="semiamorphous region">semiamorphous region</option>
+                                
+                                    <option value="yielding point">yielding point</option>
+                                
+                                    <option value="biosafety security">biosafety security</option>
+                                
+                                    <option value="blood vessel">blood vessel</option>
+                                
+                                    <option value="bottom-tensionality">bottom-tensionality</option>
+                                
+                                    <option value="chemically functionalizing the protein">chemically functionalizing the protein</option>
+                                
+                                    <option value="diffraction gratings">diffraction gratings</option>
+                                
+                                    <option value="drug delivery systems">drug delivery systems</option>
+                                
+                                    <option value="eye">eye</option>
+                                
+                                    <option value="forming composites">forming composites</option>
+                                
+                                    <option value="fruits">fruits</option>
+                                
+                                    <option value="gold deposited on a silk fibroin substrate">gold deposited on a silk fibroin substrate</option>
+                                
+                                    <option value="implants (medical devices)">implants (medical devices)</option>
+                                
+                                    <option value="lenses">lenses</option>
+                                
+                                    <option value="lip">lip</option>
+                                
+                                    <option value="load-bearing fibers">load-bearing fibers</option>
+                                
+                                    <option value="medical monitoring">medical monitoring</option>
+                                
+                                    <option value="nerve">nerve</option>
+                                
+                                    <option value="neuronal">neuronal</option>
+                                
+                                    <option value="non-planar shape">non-planar shape</option>
+                                
+                                    <option value="optical applications">optical applications</option>
+                                
+                                    <option value="optical fibers">optical fibers</option>
+                                
+                                    <option value="oral">oral</option>
+                                
+                                    <option value="pattern generators">pattern generators</option>
+                                
+                                    <option value="polymer microstructures">polymer microstructures</option>
+                                
+                                    <option value="producing hybrid proteins">producing hybrid proteins</option>
+                                
+                                    <option value="rfid-like silk tag sensors">rfid-like silk tag sensors</option>
+                                
+                                    <option value="scaffolds for tissue regeneration">scaffolds for tissue regeneration</option>
+                                
+                                    <option value="silicon nanomembrane electronic devices">silicon nanomembrane electronic devices</option>
+                                
+                                    <option value="nanopatterned surfaces">nanopatterned surfaces</option>
+                                
+                                    <option value="surgery (medical procedure)">surgery (medical procedure)</option>
+                                
+                                    <option value="suture (medical device)">suture (medical device)</option>
+                                
+                                    <option value="therapeutics">therapeutics</option>
+                                
+                                    <option value="traditional textile materials">traditional textile materials</option>
+                                
+                                    <option value="vegetables">vegetables</option>
+                                
+                                    <option value="wireless passive food sensors">wireless passive food sensors</option>
+                                
+                                    <option value="wound dressing">wound dressing</option>
+                                
+                                    <option value="wound repair">wound repair</option>
+                                
+                                    <option value="extensive studies">extensive studies</option>
+                                
+                                    <option value="advanced structural performance">advanced structural performance</option>
+                                
+                                    <option value="lightweight design">lightweight design</option>
+                                
+                                    <option value="aqeous environment">aqeous environment</option>
+                                
+                                    <option value="flexible helices">flexible helices</option>
+                                
+                                    <option value="rain">rain</option>
+                                
+                                    <option value="steel">steel</option>
+                                
+                                    <option value="sunlight">sunlight</option>
+                                
+                                    <option value="wind">wind</option>
+                                
+                                    <option value="ag nws">ag nws</option>
+                                
+                                    <option value="metal ps">metal ps</option>
+                                
+                                    <option value="mxene tis({2})cl({7})">mxene tis({2})cl({7})</option>
+                                
+                                    <option value="poly(dopamine)/ni({2+})">poly(dopamine)/ni({2+})</option>
+                                
+                                    <option value="spider silk protein (e.g. eadf4(c16))">spider silk protein (e.g. eadf4(c16))</option>
+                                
+                                    <option value="scanning waxs">scanning waxs</option>
+                                
+                                    <option value="earlywood cells">earlywood cells</option>
+                                
+                                    <option value="hydrophilic amorphous cellulose">hydrophilic amorphous cellulose</option>
+                                
+                                    <option value="hydrophilic matrix">hydrophilic matrix</option>
+                                
+                                    <option value="hydrophobic crystalline cellulose">hydrophobic crystalline cellulose</option>
+                                
+                                    <option value="radially oriented ray cells">radially oriented ray cells</option>
+                                
+                                    <option value="soft polymeric matrix">soft polymeric matrix</option>
+                                
+                                    <option value="thick-walled latewood cells">thick-walled latewood cells</option>
+                                
+                                    <option value="thin-walled earlywood cells">thin-walled earlywood cells</option>
+                                
+                                    <option value="hygroscopic material">hygroscopic material</option>
+                                
+                                    <option value="transport efficiency">transport efficiency</option>
+                                
+                                    <option value="derome et al. (2011)">derome et al. (2011)</option>
+                                
+                                    <option value="precursor material">precursor material</option>
+                                
+                                    <option value="delignified wood">delignified wood</option>
+                                
+                                    <option value="compressive moduli">compressive moduli</option>
+                                
+                                    <option value="lignin and hemicellulose">lignin and hemicellulose</option>
+                                
+                                    <option value="native wood">native wood</option>
+                                
+                                    <option value="grain size">grain size</option>
+                                
+                                    <option value="biocompatibility testing">biocompatibility testing</option>
+                                
+                                    <option value="dislocation density">dislocation density</option>
+                                
+                                    <option value="severe plastic deformation (spd) processes">severe plastic deformation (spd) processes</option>
+                                
+                                    <option value="aluminum layers">aluminum layers</option>
+                                
+                                    <option value="enhanced biocompatibility">enhanced biocompatibility</option>
+                                
+                                    <option value="ultrafine grained (ufg) titanium">ultrafine grained (ufg) titanium</option>
+                                
+                                    <option value="corrosion resistance">corrosion resistance</option>
+                                
+                                    <option value="ufg titanium alloys">ufg titanium alloys</option>
+                                
+                                    <option value="chemicals present inside the human body">chemicals present inside the human body</option>
+                                
+                                    <option value="medical devices">medical devices</option>
+                                
+                                    <option value="imogolite-reinforced nanocomposites">imogolite-reinforced nanocomposites</option>
+                                
+                                    <option value="engineering more performant materials">engineering more performant materials</option>
+                                
+                                    <option value="service performance">service performance</option>
+                                
+                                    <option value="electroplated layer">electroplated layer</option>
+                                
+                                    <option value="non-allergic characteristics">non-allergic characteristics</option>
+                                
+                                    <option value="artificial muscle fibers">artificial muscle fibers</option>
+                                
+                                    <option value="braids">braids</option>
+                                
+                                    <option value="coiled nylon yarns">coiled nylon yarns</option>
+                                
+                                    <option value="cotton yarns">cotton yarns</option>
+                                
+                                    <option value="iles">iles</option>
+                                
+                                    <option value="lce yarns">lce yarns</option>
+                                
+                                    <option value="silver yarns">silver yarns</option>
+                                
+                                    <option value="spandex yarns">spandex yarns</option>
+                                
+                                    <option value="digital files">digital files</option>
+                                
+                                    <option value="fourier series function (fsf)">fourier series function (fsf)</option>
+                                
+                                    <option value="triply periodic minimal surfaces (tpms)">triply periodic minimal surfaces (tpms)</option>
+                                
+                                    <option value="aluminum foams">aluminum foams</option>
+                                
+                                    <option value="cell shape">cell shape</option>
+                                
+                                    <option value="cell size">cell size</option>
+                                
+                                    <option value="cellular polymers">cellular polymers</option>
+                                
+                                    <option value="energy absorption capacity">energy absorption capacity</option>
+                                
+                                    <option value="metallic foams">metallic foams</option>
+                                
+                                    <option value="young's modulus (e)">young's modulus (e)</option>
+                                
+                                    <option value="spatial gradation scheme">spatial gradation scheme</option>
+                                
+                                    <option value="m">m</option>
+                                
+                                    <option value="type-(i) fiber">type-(i) fiber</option>
+                                
+                                    <option value="weibull distribution function">weibull distribution function</option>
+                                
+                                    <option value="smooth transition">smooth transition</option>
+                                
+                                    <option value="weighting functions">weighting functions</option>
+                                
+                                    <option value="dedicated high energy x-ray facilities">dedicated high energy x-ray facilities</option>
+                                
+                                    <option value="esrf">esrf</option>
+                                
+                                    <option value="future directions">future directions</option>
+                                
+                                    <option value="possibilities">possibilities</option>
+                                
+                                    <option value="artificial intelligence">artificial intelligence</option>
+                                
+                                    <option value="integration">integration</option>
+                                
+                                    <option value="riekel et al.">riekel et al.</option>
+                                
+                                    <option value="size-effect insensitivity">size-effect insensitivity</option>
+                                
+                                    <option value="were stacked layer-by-layer">were stacked layer-by-layer</option>
+                                
+                                    <option value="non-linear viscoelastic behaviors">non-linear viscoelastic behaviors</option>
+                                
+                                    <option value="human and animal skin">human and animal skin</option>
+                                
+                                    <option value="degradable polymers">degradable polymers</option>
+                                
+                                    <option value="fiber-optical characteristics">fiber-optical characteristics</option>
+                                
+                                    <option value="hierarchical structural skeletons">hierarchical structural skeletons</option>
+                                
+                                    <option value="intrinsic properties">intrinsic properties</option>
+                                
+                                    <option value="small-angle x-ray scattering (saxs)">small-angle x-ray scattering (saxs)</option>
+                                
+                                    <option value="combined performance index for elastic behavior (m_{1e})">combined performance index for elastic behavior (m_{1e})</option>
+                                
+                                    <option value="combined performance index for failure behavior (m_{1f})">combined performance index for failure behavior (m_{1f})</option>
+                                
+                                    <option value="constituent materials">constituent materials</option>
+                                
+                                    <option value="optimization">optimization</option>
+                                
+                                    <option value="wheatstrawmaterial">wheatstrawmaterial</option>
+                                
+                                    <option value="sample preparation">sample preparation</option>
+                                
+                                    <option value="radiation damage">radiation damage</option>
+                                
+                                    <option value="adhesion strength">adhesion strength</option>
+                                
+                                    <option value="approximately 5.55 pn/a">approximately 5.55 pn/a</option>
+                                
+                                    <option value="contact units at smaller scales">contact units at smaller scales</option>
+                                
+                                    <option value="material property gradients">material property gradients</option>
+                                
+                                    <option value="fracture mechanics approaches">fracture mechanics approaches</option>
+                                
+                                    <option value="funnel or cup-shaped designs">funnel or cup-shaped designs</option>
+                                
+                                    <option value="baik et al.">baik et al.</option>
+                                
+                                    <option value="fracture stress">fracture stress</option>
+                                
+                                    <option value="approximately 11.2 gpa">approximately 11.2 gpa</option>
+                                
+                                    <option value="maximum force">maximum force</option>
+                                
+                                    <option value="approximately 1100 pn">approximately 1100 pn</option>
+                                
+                                    <option value="approximately 2900 pn">approximately 2900 pn</option>
+                                
+                                    <option value="approximately 750 pn">approximately 750 pn</option>
+                                
+                                    <option value="transition">transition</option>
+                                
+                                    <option value="approximately 9.3 gpa">approximately 9.3 gpa</option>
+                                
+                                    <option value="ink samples">ink samples</option>
+                                
+                                    <option value="pore collapse mechanism">pore collapse mechanism</option>
+                                
+                                    <option value="plastic moment (mp)">plastic moment (mp)</option>
+                                
+                                    <option value="global stress">global stress</option>
+                                
+                                    <option value="yield strength">yield strength</option>
+                                
+                                    <option value="dairy lipids">dairy lipids</option>
+                                
+                                    <option value="σy">σy</option>
+                                
+                                    <option value="cap reinforced plla composites">cap reinforced plla composites</option>
+                                
+                                    <option value="poly(lactic acid)">poly(lactic acid)</option>
+                                
+                                    <option value="lignin-poss composite">lignin-poss composite</option>
+                                
+                                    <option value="flaws">flaws</option>
+                                
+                                    <option value="nanocrystalline ceramics">nanocrystalline ceramics</option>
+                                
+                                    <option value="traditional crystalline materials (defects)">traditional crystalline materials (defects)</option>
+                                
+                                    <option value="effective elastic modulus">effective elastic modulus</option>
+                                
+                                    <option value="surface">surface</option>
+                                
+                                    <option value="cambial activity">cambial activity</option>
+                                
+                                    <option value="resin flow">resin flow</option>
+                                
+                                    <option value="protein network">protein network</option>
+                                
+                                    <option value="higher surface area-to-volume ratios">higher surface area-to-volume ratios</option>
+                                
+                                    <option value="enhanced properties">enhanced properties</option>
+                                
+                                    <option value="nanoporous polymeric materials">nanoporous polymeric materials</option>
+                                
+                                    <option value="nanoglasses">nanoglasses</option>
+                                
+                                    <option value="shear band formation">shear band formation</option>
+                                
+                                    <option value="persists">persists</option>
+                                
+                                    <option value="difference">difference</option>
+                                
+                                    <option value="composite materials with staggered microstructures">composite materials with staggered microstructures</option>
+                                
+                                    <option value="effects">effects</option>
+                                
+                                    <option value="interfacial toughening">interfacial toughening</option>
+                                
+                                    <option value="sutural tooth sharpness">sutural tooth sharpness</option>
+                                
+                                    <option value="connectivity in network mechanics">connectivity in network mechanics</option>
+                                
+                                    <option value="each hierarchical level">each hierarchical level</option>
+                                
+                                    <option value="michel and yunker's study">michel and yunker's study</option>
+                                
+                                    <option value="mesoscale structures">mesoscale structures</option>
+                                
+                                    <option value="mountain goat horn">mountain goat horn</option>
+                                
+                                    <option value="pronghorn horn">pronghorn horn</option>
+                                
+                                    <option value="electrode films">electrode films</option>
+                                
+                                    <option value="dimensions">dimensions</option>
+                                
+                                    <option value="shear-induced alignment">shear-induced alignment</option>
+                                
+                                    <option value="nanofibrillar materials">nanofibrillar materials</option>
+                                
+                                    <option value="fibrous components">fibrous components</option>
+                                
+                                    <option value="preferential orientation">preferential orientation</option>
+                                
+                                    <option value="barrier effects">barrier effects</option>
+                                
+                                    <option value="industries">industries</option>
+                                
+                                    <option value="wagner">wagner</option>
+                                
+                                    <option value="electrical properties">electrical properties</option>
+                                
+                                    <option value="biomimetic mineralized composites">biomimetic mineralized composites</option>
+                                
+                                    <option value="enhanced post-yield lateral expansion">enhanced post-yield lateral expansion</option>
+                                
+                                    <option value="bulk polymers">bulk polymers</option>
+                                
+                                    <option value="computational methods">computational methods</option>
+                                
+                                    <option value="flexible electronics">flexible electronics</option>
+                                
+                                    <option value="higher compressive strength">higher compressive strength</option>
+                                
+                                    <option value="large stretchability">large stretchability</option>
+                                
+                                    <option value="robust tensile strength">robust tensile strength</option>
+                                
+                                    <option value="environmental stimuli">environmental stimuli</option>
+                                
+                                    <option value="gradient characteristics">gradient characteristics</option>
+                                
+                                    <option value="mf127-20ca composite">mf127-20ca composite</option>
+                                
+                                    <option value="natural materials such as bone and mollusk shells">natural materials such as bone and mollusk shells</option>
+                                
+                                    <option value="experimental testing">experimental testing</option>
+                                
+                                    <option value="computational simulation techniques">computational simulation techniques</option>
+                                
+                                    <option value="slight micro-structural modifications">slight micro-structural modifications</option>
+                                
+                                    <option value="bouligand structure (gradient)">bouligand structure (gradient)</option>
+                                
+                                    <option value="complex models">complex models</option>
+                                
+                                    <option value="individual structural features">individual structural features</option>
+                                
+                                    <option value="hhcs with (nu_{1}=nu_{2}=0.75)">hhcs with (nu_{1}=nu_{2}=0.75)</option>
+                                
+                                    <option value="second-order hexagonal honeycomb cells (hhcs)">second-order hexagonal honeycomb cells (hhcs)</option>
+                                
+                                    <option value="other authors">other authors</option>
+                                
+                                    <option value="cardiac tissue mechanics">cardiac tissue mechanics</option>
+                                
+                                    <option value="analytical model">analytical model</option>
+                                
+                                    <option value="crack location">crack location</option>
+                                
+                                    <option value="maximum deformation">maximum deformation</option>
+                                
+                                    <option value="controlled crack formation">controlled crack formation</option>
+                                
+                                    <option value="elastic deformation">elastic deformation</option>
+                                
+                                    <option value="preferential cracking">preferential cracking</option>
+                                
+                                    <option value="3d_microstructures">3d_microstructures</option>
+                                
+                                    <option value="efficient_and_scalable_replication">efficient_and_scalable_replication</option>
+                                
+                                    <option value="initial_prototyping_techniques">initial_prototyping_techniques</option>
+                                
+                                    <option value="liquid_rectification_performance">liquid_rectification_performance</option>
+                                
+                                    <option value="nanoscale_beams">nanoscale_beams</option>
+                                
+                                    <option value="nanoscale_gaps">nanoscale_gaps</option>
+                                
+                                    <option value="remarkable_conformability">remarkable_conformability</option>
+                                
+                                    <option value="superior_robustness">superior_robustness</option>
+                                
+                                    <option value="superomniphobic_surfaces">superomniphobic_surfaces</option>
+                                
+                                    <option value="experiments">experiments</option>
+                                
+                                    <option value="cece process">cece process</option>
+                                
+                                    <option value="elastic buckling behavior">elastic buckling behavior</option>
+                                
+                                    <option value="pdms">pdms</option>
+                                
+                                    <option value="cross-linked film">cross-linked film</option>
+                                
+                                    <option value="output voltage and current">output voltage and current</option>
+                                
+                                    <option value="ps film">ps film</option>
+                                
+                                    <option value="size scaling behavior">size scaling behavior</option>
+                                
+                                    <option value="initial cell attachment">initial cell attachment</option>
+                                
+                                    <option value="3d structured scaffolds">3d structured scaffolds</option>
+                                
+                                    <option value="pcl micro/nanofiber biocomposites">pcl micro/nanofiber biocomposites</option>
+                                
+                                    <option value="pcl strands">pcl strands</option>
+                                
+                                    <option value="conventional air drying">conventional air drying</option>
+                                
+                                    <option value="nanopores">nanopores</option>
+                                
+                                    <option value="small molecular solvents">small molecular solvents</option>
+                                
+                                    <option value="ncs">ncs</option>
+                                
+                                    <option value="organic additives">organic additives</option>
+                                
+                                    <option value="bone marrow-derived mesenchymal stem cells">bone marrow-derived mesenchymal stem cells</option>
+                                
+                                    <option value="accurate prediction">accurate prediction</option>
+                                
+                                    <option value="infinite matrix inaccuracy">infinite matrix inaccuracy</option>
+                                
+                                    <option value="numerical simulations">numerical simulations</option>
+                                
+                                    <option value="computer programs">computer programs</option>
+                                
+                                    <option value="seska software">seska software</option>
+                                
+                                    <option value="comsol-5.1">comsol-5.1</option>
+                                
+                                    <option value="theoretical analysis">theoretical analysis</option>
+                                
+                                    <option value="classical laminate analysis">classical laminate analysis</option>
+                                
+                                    <option value="iterative processes">iterative processes</option>
+                                
+                                    <option value="accurate potentials">accurate potentials</option>
+                                
+                                    <option value="constitutive modeling">constitutive modeling</option>
+                                
+                                    <option value="nanograins against imaging data at different scales">nanograins against imaging data at different scales</option>
+                                
+                                    <option value="microstructure modeling">microstructure modeling</option>
+                                
+                                    <option value="relevant microstructures">relevant microstructures</option>
+                                
+                                    <option value="integrated model">integrated model</option>
+                                
+                                    <option value="forward modeling">forward modeling</option>
+                                
+                                    <option value="assumptions">assumptions</option>
+                                
+                                    <option value="identification challenge">identification challenge</option>
+                                
+                                    <option value="interaction challenge">interaction challenge</option>
+                                
+                                    <option value="energy absorption applications">energy absorption applications</option>
+                                
+                                    <option value="specific applications">specific applications</option>
+                                
+                                    <option value="anisotropic materials">anisotropic materials</option>
+                                
+                                    <option value="complex bonding">complex bonding</option>
+                                
+                                    <option value="p(am-an-ma)/fe3+ hydrogel">p(am-an-ma)/fe3+ hydrogel</option>
+                                
+                                    <option value="dipole-dipole interactions">dipole-dipole interactions</option>
+                                
+                                    <option value="fe3+-coo+coordination interactions">fe3+-coo+coordination interactions</option>
+                                
+                                    <option value="regime ii">regime ii</option>
+                                
+                                    <option value="biphasic stress-strain behavior">biphasic stress-strain behavior</option>
+                                
+                                    <option value="good shape memory">good shape memory</option>
+                                
+                                    <option value="high cyclic stability">high cyclic stability</option>
+                                
+                                    <option value="high hysteresis">high hysteresis</option>
+                                
+                                    <option value="stiffness improvement">stiffness improvement</option>
+                                
+                                    <option value="small strains">small strains</option>
+                                
+                                    <option value="attached regions">attached regions</option>
+                                
+                                    <option value="n1 interlocking angle">n1 interlocking angle</option>
+                                
+                                    <option value="true stress-strain curves">true stress-strain curves</option>
+                                
+                                    <option value="regime iii">regime iii</option>
+                                
+                                    <option value="compression samples">compression samples</option>
+                                
+                                    <option value="maximum compressive stress">maximum compressive stress</option>
+                                
+                                    <option value="plla composites">plla composites</option>
+                                
+                                    <option value="aligned array structures">aligned array structures</option>
+                                
+                                    <option value="assemblies">assemblies</option>
+                                
+                                    <option value="3d collectors">3d collectors</option>
+                                
+                                    <option value="iron oxide">iron oxide</option>
+                                
+                                    <option value="promising candidate systems for biotemplating">promising candidate systems for biotemplating</option>
+                                
+                                    <option value="silk production (bacteria)">silk production (bacteria)</option>
+                                
+                                    <option value="assemble bioinspired composite materials">assemble bioinspired composite materials</option>
+                                
+                                    <option value="producing compounds">producing compounds</option>
+                                
+                                    <option value="bioactive agents">bioactive agents</option>
+                                
+                                    <option value="e-spin nanomaterials">e-spin nanomaterials</option>
+                                
+                                    <option value="bioactive molecules">bioactive molecules</option>
+                                
+                                    <option value="drug/bioactive molecule delivery">drug/bioactive molecule delivery</option>
+                                
+                                    <option value="biomolecule incorporation for bioactivity regulation and cell behavior control">biomolecule incorporation for bioactivity regulation and cell behavior control</option>
+                                
+                                    <option value="biological entities">biological entities</option>
+                                
+                                    <option value="connective tissue-mimicking structures">connective tissue-mimicking structures</option>
+                                
+                                    <option value="patterned structures">patterned structures</option>
+                                
+                                    <option value="crimping structures">crimping structures</option>
+                                
+                                    <option value="ecm-mimicking structures">ecm-mimicking structures</option>
+                                
+                                    <option value="hybrid structures">hybrid structures</option>
+                                
+                                    <option value="bending-dominated lattices">bending-dominated lattices</option>
+                                
+                                    <option value="stretching-dominated lattices">stretching-dominated lattices</option>
+                                
+                                    <option value="individual components">individual components</option>
+                                
+                                    <option value="pell">pell</option>
+                                
+                                    <option value="ropes">ropes</option>
+                                
+                                    <option value="tubes">tubes</option>
+                                
+                                    <option value="peptide self-assembly">peptide self-assembly</option>
+                                
+                                    <option value="hollow, core-shell, or multichannel structures">hollow, core-shell, or multichannel structures</option>
+                                
+                                    <option value="sheet nacre">sheet nacre</option>
+                                
+                                    <option value="macro">macro</option>
+                                
+                                    <option value="ts">ts</option>
+                                
+                                    <option value="burrowing">burrowing</option>
+                                
+                                    <option value="shallow sandy environments">shallow sandy environments</option>
+                                
+                                    <option value="sub-surface">sub-surface</option>
+                                
+                                    <option value="cross-lamellar structures">cross-lamellar structures</option>
+                                
+                                    <option value="interdigitated polygonal calcium carbonate ts">interdigitated polygonal calcium carbonate ts</option>
+                                
+                                    <option value="light and shade first-order platelets">light and shade first-order platelets</option>
+                                
+                                    <option value="second-order lamellae">second-order lamellae</option>
+                                
+                                    <option value="average stiffness">average stiffness</option>
+                                
+                                    <option value="tibia cuticle structure">tibia cuticle structure</option>
+                                
+                                    <option value="array pan fibers (ap fibers)">array pan fibers (ap fibers)</option>
+                                
+                                    <option value="angular direction">angular direction</option>
+                                
+                                    <option value="scorpion pincer cuticle">scorpion pincer cuticle</option>
+                                
+                                    <option value="cnc/pva composite">cnc/pva composite</option>
+                                
+                                    <option value="drawing experiments">drawing experiments</option>
+                                
+                                    <option value="stiffening">stiffening</option>
+                                
+                                    <option value="strengthening">strengthening</option>
+                                
+                                    <option value="membranestretching">membranestretching</option>
+                                
+                                    <option value="drycortex">drycortex</option>
+                                
+                                    <option value="feathershaft">feathershaft</option>
+                                
+                                    <option value="overallfeatherrachis">overallfeatherrachis</option>
+                                
+                                    <option value="carbon nanotubes (cnts)">carbon nanotubes (cnts)</option>
+                                
+                                    <option value="snake eggshells">snake eggshells</option>
+                                
+                                    <option value="crack branching">crack branching</option>
+                                
+                                    <option value="beetle elytra">beetle elytra</option>
+                                
+                                    <option value="pre-existing defects">pre-existing defects</option>
+                                
+                                    <option value="time-lapse nanoct">time-lapse nanoct</option>
+                                
+                                    <option value="energy required">energy required</option>
+                                
+                                    <option value="zig-zag pattern">zig-zag pattern</option>
+                                
+                                    <option value="strip">strip</option>
+                                
+                                    <option value="outer cracks">outer cracks</option>
+                                
+                                    <option value="overlapping_structure">overlapping_structure</option>
+                                
+                                    <option value="shell sub-regions">shell sub-regions</option>
+                                
+                                    <option value="compressive_response">compressive_response</option>
+                                
+                                    <option value="human cortical bone tissue mechanics">human cortical bone tissue mechanics</option>
+                                
+                                    <option value="enhanced interfacial separation">enhanced interfacial separation</option>
+                                
+                                    <option value="interface strength">interface strength</option>
+                                
+                                    <option value="horns">horns</option>
+                                
+                                    <option value="strengthening bridges">strengthening bridges</option>
+                                
+                                    <option value="synergy (strength-plasticity)">synergy (strength-plasticity)</option>
+                                
+                                    <option value="magnetic field">magnetic field</option>
+                                
+                                    <option value="polymerization temperature">polymerization temperature</option>
+                                
+                                    <option value="collagen fiber misalignment">collagen fiber misalignment</option>
+                                
+                                    <option value="parallellism index">parallellism index</option>
+                                
+                                    <option value="collagen fluid">collagen fluid</option>
+                                
+                                    <option value="polymerization">polymerization</option>
+                                
+                                    <option value="neo-hookean hyperelastic constitutive model">neo-hookean hyperelastic constitutive model</option>
+                                
+                                    <option value="mechanical properties of collagen gel">mechanical properties of collagen gel</option>
+                                
+                                    <option value="white yak horn sheath">white yak horn sheath</option>
+                                
+                                    <option value="confocal reflectance microscopy">confocal reflectance microscopy</option>
+                                
+                                    <option value="collagen fiber alignment measurement method">collagen fiber alignment measurement method</option>
+                                
+                                    <option value="fibril alignment">fibril alignment</option>
+                                
+                                    <option value="collagen fluid behavior analysis result">collagen fluid behavior analysis result</option>
+                                
+                                    <option value="greenish blue contours">greenish blue contours</option>
+                                
+                                    <option value="red spots or patches">red spots or patches</option>
+                                
+                                    <option value="stress distribution patterns">stress distribution patterns</option>
+                                
+                                    <option value="human knee-model">human knee-model</option>
+                                
+                                    <option value="scorpion aculeus">scorpion aculeus</option>
+                                
+                                    <option value="theoretical results">theoretical results</option>
+                                
+                                    <option value="average strain energy density">average strain energy density</option>
+                                
+                                    <option value="local model">local model</option>
+                                
+                                    <option value="linear elastic stiffness properties">linear elastic stiffness properties</option>
+                                
+                                    <option value="fluid convection">fluid convection</option>
+                                
+                                    <option value="internal temperature gradients">internal temperature gradients</option>
+                                
+                                    <option value="light absorber">light absorber</option>
+                                
+                                    <option value="shear storage modulus">shear storage modulus</option>
+                                
+                                    <option value="temperature distribution">temperature distribution</option>
+                                
+                                    <option value="damage to corneal stroma">damage to corneal stroma</option>
+                                
+                                    <option value="stromal substitutes">stromal substitutes</option>
+                                
+                                    <option value="high density regions">high density regions</option>
+                                
+                                    <option value="aragonite ts">aragonite ts</option>
+                                
+                                    <option value="proteinaceous layers">proteinaceous layers</option>
+                                
+                                    <option value="hierarchically structured low weight impact-resistant material">hierarchically structured low weight impact-resistant material</option>
+                                
+                                    <option value="brick-and-mortar microstructure">brick-and-mortar microstructure</option>
+                                
+                                    <option value="inorganic tablets">inorganic tablets</option>
+                                
+                                    <option value="nanoasperities">nanoasperities</option>
+                                
+                                    <option value="brick-and-mortar composite structure">brick-and-mortar composite structure</option>
+                                
+                                    <option value="damage diffusion">damage diffusion</option>
+                                
+                                    <option value="high deformations">high deformations</option>
+                                
+                                    <option value="short anagonite agglomerates">short anagonite agglomerates</option>
+                                
+                                    <option value="ts pull-out">ts pull-out</option>
+                                
+                                    <option value="ultra-high toughness">ultra-high toughness</option>
+                                
+                                    <option value="brick and mortar microstructures">brick and mortar microstructures</option>
+                                
+                                    <option value="inner nacreous layer">inner nacreous layer</option>
+                                
+                                    <option value="outer prismatic layer">outer prismatic layer</option>
+                                
+                                    <option value="stacked platelets">stacked platelets</option>
+                                
+                                    <option value="shear strength">shear strength</option>
+                                
+                                    <option value="advantageous properties">advantageous properties</option>
+                                
+                                    <option value="global unusual mechanical properties">global unusual mechanical properties</option>
+                                
+                                    <option value="increases energy absorption and toughness">increases energy absorption and toughness</option>
+                                
+                                    <option value="large viscoelastic energy dissipation">large viscoelastic energy dissipation</option>
+                                
+                                    <option value="local scale sliding">local scale sliding</option>
+                                
+                                    <option value="conformal t waviness">conformal t waviness</option>
+                                
+                                    <option value="organic material">organic material</option>
+                                
+                                    <option value="representative volume element">representative volume element</option>
+                                
+                                    <option value="tabular shells (ts)">tabular shells (ts)</option>
+                                
+                                    <option value="sliding of ts">sliding of ts</option>
+                                
+                                    <option value="certain molluscan shells">certain molluscan shells</option>
+                                
+                                    <option value="fundamental structural principles of biological materials">fundamental structural principles of biological materials</option>
+                                
+                                    <option value="high volume fraction of inorganic phase">high volume fraction of inorganic phase</option>
+                                
+                                    <option value="low-order structure">low-order structure</option>
+                                
+                                    <option value="platelets">platelets</option>
+                                
+                                    <option value="two-phase composite material">two-phase composite material</option>
+                                
+                                    <option value="multilevel, irreversible interfacial slip">multilevel, irreversible interfacial slip</option>
+                                
+                                    <option value="multiple cracking">multiple cracking</option>
+                                
+                                    <option value="r-curves">r-curves</option>
+                                
+                                    <option value="process zone toughening mechanism">process zone toughening mechanism</option>
+                                
+                                    <option value="aragonite platelets">aragonite platelets</option>
+                                
+                                    <option value="direct crack deflection">direct crack deflection</option>
+                                
+                                    <option value="void formation">void formation</option>
+                                
+                                    <option value="bulk modulus">bulk modulus</option>
+                                
+                                    <option value="cohesive law">cohesive law</option>
+                                
+                                    <option value="hardening behavior">hardening behavior</option>
+                                
+                                    <option value="inter-t shearing">inter-t shearing</option>
+                                
+                                    <option value="interface material">interface material</option>
+                                
+                                    <option value="interface waviness">interface waviness</option>
+                                
+                                    <option value="mineral plates">mineral plates</option>
+                                
+                                    <option value="biogenic calcium carbonate composite">biogenic calcium carbonate composite</option>
+                                
+                                    <option value="resistance to t sliding">resistance to t sliding</option>
+                                
+                                    <option value="bi-layer armor system">bi-layer armor system</option>
+                                
+                                    <option value="hard outer layer">hard outer layer</option>
+                                
+                                    <option value="sliding between adjacent tablets">sliding between adjacent tablets</option>
+                                
+                                    <option value="soft inner layer">soft inner layer</option>
+                                
+                                    <option value="sub-layers of weaker material">sub-layers of weaker material</option>
+                                
+                                    <option value="voronoi-like contours">voronoi-like contours</option>
+                                
+                                    <option value="waviness of adjacent tablets">waviness of adjacent tablets</option>
+                                
+                                    <option value="multi-scale hierarchical microstructures">multi-scale hierarchical microstructures</option>
+                                
+                                    <option value="microstructural features">microstructural features</option>
+                                
+                                    <option value="polygonal tablets">polygonal tablets</option>
+                                
+                                    <option value="biomechanical functions">biomechanical functions</option>
+                                
+                                    <option value="dynamic compressive loading">dynamic compressive loading</option>
+                                
+                                    <option value="harmonious collaboration">harmonious collaboration</option>
+                                
+                                    <option value="interconnected layer-to-layer spiral structures">interconnected layer-to-layer spiral structures</option>
+                                
+                                    <option value="higher fracture toughness">higher fracture toughness</option>
+                                
+                                    <option value="hysteresis">hysteresis</option>
+                                
+                                    <option value="interlamellar shear">interlamellar shear</option>
+                                
+                                    <option value="optimized structure for energy absorption">optimized structure for energy absorption</option>
+                                
+                                    <option value="quasi-static loading">quasi-static loading</option>
+                                
+                                    <option value="screw dislocations">screw dislocations</option>
+                                
+                                    <option value="synergetic collaboration">synergetic collaboration</option>
+                                
+                                    <option value="t geometry">t geometry</option>
+                                
+                                    <option value="weibull analysis">weibull analysis</option>
+                                
+                                    <option value="molecular chains">molecular chains</option>
+                                
+                                    <option value="strong viscoelastic adhesives">strong viscoelastic adhesives</option>
+                                
+                                    <option value="streptavidin (sta)">streptavidin (sta)</option>
+                                
+                                    <option value="preparation">preparation</option>
+                                
+                                    <option value="vimentin ah protein domain">vimentin ah protein domain</option>
+                                
+                                    <option value="thrombin">thrombin</option>
+                                
+                                    <option value="cameron jr et al.">cameron jr et al.</option>
+                                
+                                    <option value="dynamic fracture energy">dynamic fracture energy</option>
+                                
+                                    <option value="coefficient of friction">coefficient of friction</option>
+                                
+                                    <option value="reptilian scales">reptilian scales</option>
+                                
+                                    <option value="wear rate">wear rate</option>
+                                
+                                    <option value="crack deflection mechanism">crack deflection mechanism</option>
+                                
+                                    <option value="crossed lamellae">crossed lamellae</option>
+                                
+                                    <option value="enhanced fracture resistance">enhanced fracture resistance</option>
+                                
+                                    <option value="hydration sensitivity">hydration sensitivity</option>
+                                
+                                    <option value="lamellar bonding">lamellar bonding</option>
+                                
+                                    <option value="protective function">protective function</option>
+                                
+                                    <option value="tortuous crack path">tortuous crack path</option>
+                                
+                                    <option value="unconventional mechanical behaviors">unconventional mechanical behaviors</option>
+                                
+                                    <option value="unique fracture patterns">unique fracture patterns</option>
+                                
+                                    <option value="stratum corneum">stratum corneum</option>
+                                
+                                    <option value="simulation platform 5">simulation platform 5</option>
+                                
+                                    <option value="bouligand structure">bouligand structure</option>
+                                
+                                    <option value="epoxy">epoxy</option>
+                                
+                                    <option value="engineered structures">engineered structures</option>
+                                
+                                    <option value="polylactic acid">polylactic acid</option>
+                                
+                                    <option value="characteristic strength">characteristic strength</option>
+                                
+                                    <option value="larger samples">larger samples</option>
+                                
+                                    <option value="smaller samples">smaller samples</option>
+                                
+                                    <option value="deflection">deflection</option>
+                                
+                                    <option value="tip blunting">tip blunting</option>
+                                
+                                    <option value="rigid line">rigid line</option>
+                                
+                                    <option value="shielding effect">shielding effect</option>
+                                
+                                    <option value="slow crack propagation">slow crack propagation</option>
+                                
+                                    <option value="maximum diameter range">maximum diameter range</option>
+                                
+                                    <option value="coconut endocarp samples">coconut endocarp samples</option>
+                                
+                                    <option value="weibull moduli">weibull moduli</option>
+                                
+                                    <option value="fibre caps">fibre caps</option>
+                                
+                                    <option value="plant_materials">plant_materials</option>
+                                
+                                    <option value="dracaena marginata individuals">dracaena marginata individuals</option>
+                                
+                                    <option value="dracaena marginata">dracaena marginata</option>
+                                
+                                    <option value="dissimilar materials">dissimilar materials</option>
+                                
+                                    <option value="tailorability">tailorability</option>
+                                
+                                    <option value="connection">connection</option>
+                                
+                                    <option value="hybrid films">hybrid films</option>
+                                
+                                    <option value="bony region">bony region</option>
+                                
+                                    <option value="toucan beak">toucan beak</option>
+                                
+                                    <option value="beta sheet nanocrystal">beta sheet nanocrystal</option>
+                                
+                                    <option value="cable-driven actuation">cable-driven actuation</option>
+                                
+                                    <option value="dental membranes">dental membranes</option>
+                                
+                                    <option value="selective failure mode">selective failure mode</option>
+                                
+                                    <option value="tailorable stresses">tailorable stresses</option>
+                                
+                                    <option value="interface fracture problem">interface fracture problem</option>
+                                
+                                    <option value="calcite">calcite</option>
+                                
+                                    <option value="areas that did not change color after 90° rotation">areas that did not change color after 90° rotation</option>
+                                
+                                    <option value="crystallographic orientation">crystallographic orientation</option>
+                                
+                                    <option value="biologically formed large single crystals of mg-calcite">biologically formed large single crystals of mg-calcite</option>
+                                
+                                    <option value="calcium carbonate mineral">calcium carbonate mineral</option>
+                                
+                                    <option value="calcareous skeletal elements">calcareous skeletal elements</option>
+                                
+                                    <option value="bivalve shells">bivalve shells</option>
+                                
+                                    <option value="sea urchin teeth">sea urchin teeth</option>
+                                
+                                    <option value="double twisted honeycomb frameworks">double twisted honeycomb frameworks</option>
+                                
+                                    <option value="higher crystallinity">higher crystallinity</option>
+                                
+                                    <option value="shorter pitch">shorter pitch</option>
+                                
+                                    <option value="3d ure">3d ure</option>
+                                
+                                    <option value="c- and a+-axes">c- and a+-axes</option>
+                                
+                                    <option value="high co-orientation strength">high co-orientation strength</option>
+                                
+                                    <option value="highly-disordered fashion">highly-disordered fashion</option>
+                                
+                                    <option value="mainly one orientation arrangement">mainly one orientation arrangement</option>
+                                
+                                    <option value="weak co-orientation">weak co-orientation</option>
+                                
+                                    <option value="external factors">external factors</option>
+                                
+                                    <option value="vacuum-assisted flocculation">vacuum-assisted flocculation</option>
+                                
+                                    <option value="porous materials">porous materials</option>
+                                
+                                    <option value="young's modulus with spheroidal pores">young's modulus with spheroidal pores</option>
+                                
+                                    <option value="lightweight frameworks">lightweight frameworks</option>
+                                
+                                    <option value="scaffold permeability">scaffold permeability</option>
+                                
+                                    <option value="statistical computing software">statistical computing software</option>
+                                
+                                    <option value="q">q</option>
+                                
+                                    <option value="s">s</option>
+                                
+                                    <option value="rock salt">rock salt</option>
+                                
+                                    <option value="wood and wood composites">wood and wood composites</option>
+                                
+                                    <option value="tissue packing">tissue packing</option>
+                                
+                                    <option value="spatial gradients">spatial gradients</option>
+                                
+                                    <option value="coconut shells (old)">coconut shells (old)</option>
+                                
+                                    <option value="isotropy">isotropy</option>
+                                
+                                    <option value="phonons">phonons</option>
+                                
+                                    <option value="periodic boundary conditions">periodic boundary conditions</option>
+                                
+                                    <option value="left">left</option>
+                                
+                                    <option value="mineral tips">mineral tips</option>
+                                
+                                    <option value="slender beams">slender beams</option>
+                                
+                                    <option value="contact">contact</option>
+                                
+                                    <option value=".54a">.54a</option>
+                                
+                                    <option value="representative volume element (rve)">representative volume element (rve)</option>
+                                
+                                    <option value="reproduce entire scaffold area or volume">reproduce entire scaffold area or volume</option>
+                                
+                                    <option value="most knit strain sensors">most knit strain sensors</option>
+                                
+                                    <option value="energy conversion">energy conversion</option>
+                                
+                                    <option value="limited material selection">limited material selection</option>
+                                
+                                    <option value="signal transmission">signal transmission</option>
+                                
+                                    <option value="flexible materials">flexible materials</option>
+                                
+                                    <option value="inexpensive materials">inexpensive materials</option>
+                                
+                                    <option value="transparent materials">transparent materials</option>
+                                
+                                    <option value="complex stress states">complex stress states</option>
+                                
+                                    <option value="fiber-reinforced_polymer_composites">fiber-reinforced_polymer_composites</option>
+                                
+                                    <option value="functional gradient structures">functional gradient structures</option>
+                                
+                                    <option value="laminate_composite_structure">laminate_composite_structure</option>
+                                
+                                    <option value="non-continuous heterogeneity">non-continuous heterogeneity</option>
+                                
+                                    <option value="transverse_isotropy">transverse_isotropy</option>
+                                
+                                    <option value="multiple hierarchical levels">multiple hierarchical levels</option>
+                                
+                                    <option value="broad material compatibility">broad material compatibility</option>
+                                
+                                    <option value="functional integrity">functional integrity</option>
+                                
+                                    <option value="liquid diode devices">liquid diode devices</option>
+                                
+                                    <option value="structural and functional diversity">structural and functional diversity</option>
+                                
+                                    <option value="superpemellant surfaces">superpemellant surfaces</option>
+                                
+                                    <option value="moderate value for φ0">moderate value for φ0</option>
+                                
+                                    <option value="small value for t/r0">small value for t/r0</option>
+                                
+                                    <option value="flexural rigidity">flexural rigidity</option>
+                                
+                                    <option value="reference axis">reference axis</option>
+                                
+                                    <option value="isotropic structure">isotropic structure</option>
+                                
+                                    <option value="isotropic arrangement">isotropic arrangement</option>
+                                
+                                    <option value="basal texture">basal texture</option>
+                                
+                                    <option value="continuous dynamic recrystallization (cdrx)">continuous dynamic recrystallization (cdrx)</option>
+                                
+                                    <option value="discontinuous dynamic recrystallization (ddrx)">discontinuous dynamic recrystallization (ddrx)</option>
+                                
+                                    <option value="grain-boundary rotational (gbrx)">grain-boundary rotational (gbrx)</option>
+                                
+                                    <option value="prismatic texture">prismatic texture</option>
+                                
+                                    <option value="twin-boundary rotational (tbrx)">twin-boundary rotational (tbrx)</option>
+                                
+                                    <option value="inner enamel area">inner enamel area</option>
+                                
+                                    <option value="marianne liebi et al.">marianne liebi et al.</option>
+                                
+                                    <option value="cylindrical symmetry">cylindrical symmetry</option>
+                                
+                                    <option value="human trabecular bone">human trabecular bone</option>
+                                
+                                    <option value="self-consistent scheme">self-consistent scheme</option>
+                                
+                                    <option value="hydroxyapatite platelets">hydroxyapatite platelets</option>
+                                
+                                    <option value="mcf">mcf</option>
+                                
+                                    <option value="collagen concentration">collagen concentration</option>
+                                
+                                    <option value="cylindrical shape">cylindrical shape</option>
+                                
+                                    <option value="distance between collagen fibers">distance between collagen fibers</option>
+                                
+                                    <option value="lamella">lamella</option>
+                                
+                                    <option value="ability to adapt to changing loads over time">ability to adapt to changing loads over time</option>
+                                
+                                    <option value="high strength-to-weight ratio">high strength-to-weight ratio</option>
+                                
+                                    <option value="unique mechanical properties">unique mechanical properties</option>
+                                
+                                    <option value="pure collagen fibrils">pure collagen fibrils</option>
+                                
+                                    <option value="electron microscopy techniques">electron microscopy techniques</option>
+                                
+                                    <option value="haadf-stem images">haadf-stem images</option>
+                                
+                                    <option value="inorganic phase">inorganic phase</option>
+                                
+                                    <option value="nature-optimized material">nature-optimized material</option>
+                                
+                                    <option value="fibershapedmotif">fibershapedmotif</option>
+                                
+                                    <option value="tshapedmotif">tshapedmotif</option>
+                                
+                                    <option value="gapregions">gapregions</option>
+                                
+                                    <option value="highstrength">highstrength</option>
+                                
+                                    <option value="largedeformation">largedeformation</option>
+                                
+                                    <option value="largelocalyieldregions">largelocalyieldregions</option>
+                                
+                                    <option value="tropocollagenmolecules">tropocollagenmolecules</option>
+                                
+                                    <option value="stiffness estimation">stiffness estimation</option>
+                                
+                                    <option value="small-angle scattering (sas)">small-angle scattering (sas)</option>
+                                
+                                    <option value="neutrons">neutrons</option>
+                                
+                                    <option value="non-destructive technique">non-destructive technique</option>
+                                
+                                    <option value="extended length scales">extended length scales</option>
+                                
+                                    <option value="in situ measurements">in situ measurements</option>
+                                
+                                    <option value="metal">metal</option>
+                                
+                                    <option value="hemispheres">hemispheres</option>
+                                
+                                    <option value="hexagonal fashion">hexagonal fashion</option>
+                                
+                                    <option value="bactericidal activity">bactericidal activity</option>
+                                
+                                    <option value="hairs">hairs</option>
+                                
+                                    <option value="microscale protrusions">microscale protrusions</option>
+                                
+                                    <option value="hydrophilic termites">hydrophilic termites</option>
+                                
+                                    <option value="micrasters">micrasters</option>
+                                
+                                    <option value="microgrooves">microgrooves</option>
+                                
+                                    <option value="photolithography">photolithography</option>
+                                
+                                    <option value="rooftop arrangements">rooftop arrangements</option>
+                                
+                                    <option value="nanocellulose crystal surface">nanocellulose crystal surface</option>
+                                
+                                    <option value="waviness">waviness</option>
+                                
+                                    <option value="distinct underlying mechanisms">distinct underlying mechanisms</option>
+                                
+                                    <option value="plastic dissipation">plastic dissipation</option>
+                                
+                                    <option value="post-yield strain hardening">post-yield strain hardening</option>
+                                
+                                    <option value="effective longitudinal elastic modulus">effective longitudinal elastic modulus</option>
+                                
+                                    <option value="mineral volume fractions">mineral volume fractions</option>
+                                
+                                    <option value="beakage of mineral teeth">beakage of mineral teeth</option>
+                                
+                                    <option value="fibril shearing">fibril shearing</option>
+                                
+                                    <option value="nanospherical ure">nanospherical ure</option>
+                                
+                                    <option value="efms">efms</option>
+                                
+                                    <option value="dilational bands">dilational bands</option>
+                                
+                                    <option value="hidden length">hidden length</option>
+                                
+                                    <option value="microstructural mechanisms">microstructural mechanisms</option>
+                                
+                                    <option value="sacrificial bonds">sacrificial bonds</option>
+                                
+                                    <option value="lignin-rich matrix">lignin-rich matrix</option>
+                                
+                                    <option value="trabecular bone">trabecular bone</option>
+                                
+                                    <option value="creating mesopores">creating mesopores</option>
+                                
+                                    <option value="biofilms">biofilms</option>
+                                
+                                    <option value="tunicate tests">tunicate tests</option>
+                                
+                                    <option value="5.4 mm thick plates">5.4 mm thick plates</option>
+                                
+                                    <option value="more globalized energy absorption">more globalized energy absorption</option>
+                                
+                                    <option value="keratin_scales">keratin_scales</option>
+                                
+                                    <option value="surface coatings">surface coatings</option>
+                                
+                                    <option value="interlayer delamination">interlayer delamination</option>
+                                
+                                    <option value="hierarchical structure and multi-layered composition">hierarchical structure and multi-layered composition</option>
+                                
+                                    <option value="improved blast resistance">improved blast resistance</option>
+                                
+                                    <option value="blast resistance tests">blast resistance tests</option>
+                                
+                                    <option value="covalent crosslinking methods">covalent crosslinking methods</option>
+                                
+                                    <option value="divalent cations">divalent cations</option>
+                                
+                                    <option value="hybrid crosslinking">hybrid crosslinking</option>
+                                
+                                    <option value="seaweed">seaweed</option>
+                                
+                                    <option value="red algae">red algae</option>
+                                
+                                    <option value="sulphated polysaccharides">sulphated polysaccharides</option>
+                                
+                                    <option value="food thickener">food thickener</option>
+                                
+                                    <option value="gelling properties">gelling properties</option>
+                                
+                                    <option value="silk fibroin composites">silk fibroin composites</option>
+                                
+                                    <option value="oxidized alginate">oxidized alginate</option>
+                                
+                                    <option value="high stretchability">high stretchability</option>
+                                
+                                    <option value="large deformations">large deformations</option>
+                                
+                                    <option value="aqueous surroundings">aqueous surroundings</option>
+                                
+                                    <option value="multiscale biomimetic constructs">multiscale biomimetic constructs</option>
+                                
+                                    <option value="hyperelastic nonlinear behavior">hyperelastic nonlinear behavior</option>
+                                
+                                    <option value="msbcs">msbcs</option>
+                                
+                                    <option value="remarkable similarity">remarkable similarity</option>
+                                
+                                    <option value="improved toughness">improved toughness</option>
+                                
+                                    <option value="fiberglass fabric">fiberglass fabric</option>
+                                
+                                    <option value="low sliding friction on solid surfaces">low sliding friction on solid surfaces</option>
+                                
+                                    <option value="poorer adhesion">poorer adhesion</option>
+                                
+                                    <option value="li et al.'s hybrid alginate/paam hydrogel">li et al.'s hybrid alginate/paam hydrogel</option>
+                                
+                                    <option value="uniaxial stretching">uniaxial stretching</option>
+                                
+                                    <option value="hybrid multiparadigm technique">hybrid multiparadigm technique</option>
+                                
+                                    <option value="single ifs">single ifs</option>
+                                
+                                    <option value="vimentin gels">vimentin gels</option>
+                                
+                                    <option value="controlled buckling">controlled buckling</option>
+                                
+                                    <option value="skin-like electronics systems">skin-like electronics systems</option>
+                                
+                                    <option value="allow for">allow for</option>
+                                
+                                    <option value="structural anisotropy">structural anisotropy</option>
+                                
+                                    <option value="unbonded regions">unbonded regions</option>
+                                
+                                    <option value="endoskeleton">endoskeleton</option>
+                                
+                                    <option value="new rve model">new rve model</option>
+                                
+                                    <option value="dugdale model">dugdale model</option>
+                                
+                                    <option value="cohesive strength">cohesive strength</option>
+                                
+                                    <option value="sg-d">sg-d</option>
+                                
+                                    <option value="wof">wof</option>
+                                
+                                    <option value="gc">gc</option>
+                                
+                                    <option value="aligned polymer chains">aligned polymer chains</option>
+                                
+                                    <option value="spidroin pre-assemblies">spidroin pre-assemblies</option>
+                                
+                                    <option value="denaturant">denaturant</option>
+                                
+                                    <option value="larger silk protein superstructures">larger silk protein superstructures</option>
+                                
+                                    <option value="time">time</option>
+                                
+                                    <option value="spidroin proteins">spidroin proteins</option>
+                                
+                                    <option value="alanine">alanine</option>
+                                
+                                    <option value="denaturant solution">denaturant solution</option>
+                                
+                                    <option value="dynamic light scattering">dynamic light scattering</option>
+                                
+                                    <option value="glutamine">glutamine</option>
+                                
+                                    <option value="glycine">glycine</option>
+                                
+                                    <option value="hncacb and cbcaconh triple-resonance experiments">hncacb and cbcaconh triple-resonance experiments</option>
+                                
+                                    <option value="nmr spectroscopy">nmr spectroscopy</option>
+                                
+                                    <option value="hierarchical nanoscale superstructures">hierarchical nanoscale superstructures</option>
+                                
+                                    <option value="black widow spider dragline silk">black widow spider dragline silk</option>
+                                
+                                    <option value="large nanoscale (~250 nm) hierarchical pre-assemblies">large nanoscale (~250 nm) hierarchical pre-assemblies</option>
+                                
+                                    <option value="native spidroin proteins">native spidroin proteins</option>
+                                
+                                    <option value="chitosan (cs) tubules and membranes">chitosan (cs) tubules and membranes</option>
+                                
+                                    <option value="polypeptide chain">polypeptide chain</option>
+                                
+                                    <option value="amino acid substitutions">amino acid substitutions</option>
+                                
+                                    <option value="plant epicuticular waxes">plant epicuticular waxes</option>
+                                
+                                    <option value="biomechanics">biomechanics</option>
+                                
+                                    <option value="macroscopic scale">macroscopic scale</option>
+                                
+                                    <option value="fracture mechanics concepts">fracture mechanics concepts</option>
+                                
+                                    <option value="classic mechanics">classic mechanics</option>
+                                
+                                    <option value="bone health">bone health</option>
+                                
+                                    <option value="complex biofluids">complex biofluids</option>
+                                
+                                    <option value="76%">76%</option>
+                                
+                                    <option value="mt doublets">mt doublets</option>
+                                
+                                    <option value="observed">observed</option>
+                                
+                                    <option value="process-induced nanochitin assembly">process-induced nanochitin assembly</option>
+                                
+                                    <option value="ammonia">ammonia</option>
+                                
+                                    <option value="proportion of graphene oxide">proportion of graphene oxide</option>
+                                
+                                    <option value="constitutiverelations">constitutiverelations</option>
+                                
+                                    <option value="finite element method-based computational fluid dynamic model">finite element method-based computational fluid dynamic model</option>
+                                
+                                    <option value="multimodal experiment-guided computational approach">multimodal experiment-guided computational approach</option>
+                                
+                                    <option value="shape-changing rate">shape-changing rate</option>
+                                
+                                    <option value="material performance">material performance</option>
+                                
+                                    <option value="equal channel angular pressing (ecap)">equal channel angular pressing (ecap)</option>
+                                
+                                    <option value="single-point diamond cutting">single-point diamond cutting</option>
+                                
+                                    <option value="air pocket formation">air pocket formation</option>
+                                
+                                    <option value="liquid droplets">liquid droplets</option>
+                                
+                                    <option value="high contact angle hysteresis">high contact angle hysteresis</option>
+                                
+                                    <option value="micropatterned surfaces">micropatterned surfaces</option>
+                                
+                                    <option value="fast water spreading">fast water spreading</option>
+                                
+                                    <option value="property of hydrophilic-oleophobic textile membranes">property of hydrophilic-oleophobic textile membranes</option>
+                                
+                                    <option value="hydrophilic-oleophobic textile membranes exhibit">hydrophilic-oleophobic textile membranes exhibit</option>
+                                
+                                    <option value="critical radius of impalement">critical radius of impalement</option>
+                                
+                                    <option value="droplet radius">droplet radius</option>
+                                
+                                    <option value="mg63 cells">mg63 cells</option>
+                                
+                                    <option value="self-assembled monolayer">self-assembled monolayer</option>
+                                
+                                    <option value="surface nanopatterning">surface nanopatterning</option>
+                                
+                                    <option value="pinning">pinning</option>
+                                
+                                    <option value="roughness geometry">roughness geometry</option>
+                                
+                                    <option value="square grid of cylindrical pillars">square grid of cylindrical pillars</option>
+                                
+                                    <option value="tilt angle">tilt angle</option>
+                                
+                                    <option value="biomedical sensing">biomedical sensing</option>
+                                
+                                    <option value="nonmechanical methods">nonmechanical methods</option>
+                                
+                                    <option value="laser surface treatment (lst)">laser surface treatment (lst)</option>
+                                
+                                    <option value="cylindrical arrays">cylindrical arrays</option>
+                                
+                                    <option value="grating">grating</option>
+                                
+                                    <option value="poly(dimethylsiloxane)">poly(dimethylsiloxane)</option>
+                                
+                                    <option value="glass micromachining">glass micromachining</option>
+                                
+                                    <option value="nanochannel dimensions">nanochannel dimensions</option>
+                                
+                                    <option value="silicon micromachining">silicon micromachining</option>
+                                
+                                    <option value="traditional micromachining methods">traditional micromachining methods</option>
+                                
+                                    <option value="photonic arrays">photonic arrays</option>
+                                
+                                    <option value="homogeneous roughness">homogeneous roughness</option>
+                                
+                                    <option value="laser-induced periodic surface structures (lipss)">laser-induced periodic surface structures (lipss)</option>
+                                
+                                    <option value="charge effects">charge effects</option>
+                                
+                                    <option value="morphology">morphology</option>
+                                
+                                    <option value="polarity">polarity</option>
+                                
+                                    <option value="surface tension">surface tension</option>
+                                
+                                    <option value="nano-calcium phosphates (nano-cps)">nano-calcium phosphates (nano-cps)</option>
+                                
+                                    <option value="biomineralization">biomineralization</option>
+                                
+                                    <option value="artificial bone tissue">artificial bone tissue</option>
+                                
+                                    <option value="implant surfaces">implant surfaces</option>
+                                
+                                    <option value="toxicity">toxicity</option>
+                                
+                                    <option value="zebrafish fin rays">zebrafish fin rays</option>
+                                
+                                    <option value="mantle cells">mantle cells</option>
+                                
+                                    <option value="nacreous layer">nacreous layer</option>
+                                
+                                    <option value="coating techniques">coating techniques</option>
+                                
+                                    <option value="experimental design">experimental design</option>
+                                
+                                    <option value="osteoblast adhesion">osteoblast adhesion</option>
+                                
+                                    <option value="sem characterization">sem characterization</option>
+                                
+                                    <option value="px removal efficiency">px removal efficiency</option>
+                                
+                                    <option value="ce-lamin">ce-lamin</option>
+                                
+                                    <option value="suspension">suspension</option>
+                                
+                                    <option value="coverage">coverage</option>
+                                
+                                    <option value="chitosan (cs) solution">chitosan (cs) solution</option>
+                                
+                                    <option value="plga scaffolds">plga scaffolds</option>
+                                
+                                    <option value="williams' flat crack assumption">williams' flat crack assumption</option>
+                                
+                                    <option value="twisting cracks">twisting cracks</option>
+                                
+                                    <option value="lefm">lefm</option>
+                                
+                                    <option value="three-dimensional models">three-dimensional models</option>
+                                
+                                    <option value="bouligand fibrous materials">bouligand fibrous materials</option>
+                                
+                                    <option value="fiber layers">fiber layers</option>
+                                
+                                    <option value="global coordinate system">global coordinate system</option>
+                                
+                                    <option value="interlayer spacing">interlayer spacing</option>
+                                
+                                    <option value="local coordinate system">local coordinate system</option>
+                                
+                                    <option value="local stress intensity factors">local stress intensity factors</option>
+                                
+                                    <option value="pitch angle">pitch angle</option>
+                                
+                                    <option value="effective stiffness">effective stiffness</option>
+                                
+                                    <option value="tailoring microstructures">tailoring microstructures</option>
+                                
+                                    <option value="permeability">permeability</option>
+                                
+                                    <option value="biological tissue (bone)">biological tissue (bone)</option>
+                                
+                                    <option value="microindentation">microindentation</option>
+                                
+                                    <option value="process parameters">process parameters</option>
+                                
+                                    <option value="optimizing mechanical and mass transport properties">optimizing mechanical and mass transport properties</option>
+                                
+                                    <option value="specific strategies">specific strategies</option>
+                                
+                                    <option value="each system">each system</option>
+                                
+                                    <option value="discontinuities">discontinuities</option>
+                                
+                                    <option value="porosity gradient">porosity gradient</option>
+                                
+                                    <option value="tiger claws">tiger claws</option>
+                                
+                                    <option value="lateral cracks">lateral cracks</option>
+                                
+                                    <option value="vertical cracks">vertical cracks</option>
+                                
+                                    <option value="stress transfer">stress transfer</option>
+                                
+                                    <option value="hard b2 phase">hard b2 phase</option>
+                                
+                                    <option value="yielding">yielding</option>
+                                
+                                    <option value="functional network hydrogels">functional network hydrogels</option>
+                                
+                                    <option value="fiber morphologies">fiber morphologies</option>
+                                
+                                    <option value="adjacent rigid components">adjacent rigid components</option>
+                                
+                                    <option value="crack surface">crack surface</option>
+                                
+                                    <option value="matrix shear failure">matrix shear failure</option>
+                                
+                                    <option value="dense and tough layer">dense and tough layer</option>
+                                
+                                    <option value="endomyosin">endomyosin</option>
+                                
+                                    <option value="hierarchical conformation">hierarchical conformation</option>
+                                
+                                    <option value="closed-form expression for effective elastic moduli and specific stiffness">closed-form expression for effective elastic moduli and specific stiffness</option>
+                                
+                                    <option value="chondroitin sulfate">chondroitin sulfate</option>
+                                
+                                    <option value="base plate">base plate</option>
+                                
+                                    <option value="crustacean exoskeletons">crustacean exoskeletons</option>
+                                
+                                    <option value="mollusc shells">mollusc shells</option>
+                                
+                                    <option value="unique hierarchical configurations">unique hierarchical configurations</option>
+                                
+                                    <option value="deformation curvatures">deformation curvatures</option>
+                                
+                                    <option value="humidity-driven shape morphing">humidity-driven shape morphing</option>
+                                
+                                    <option value="multi-scale composite architecture">multi-scale composite architecture</option>
+                                
+                                    <option value="relevant tissue geometries">relevant tissue geometries</option>
+                                
+                                    <option value="theoretical model">theoretical model</option>
+                                
+                                    <option value="gradient of elastic modulus">gradient of elastic modulus</option>
+                                
+                                    <option value="reversible hydro-actuated deformation">reversible hydro-actuated deformation</option>
+                                
+                                    <option value="adp">adp</option>
+                                
+                                    <option value="ammonium dihydrogen phosphate (adp)">ammonium dihydrogen phosphate (adp)</option>
+                                
+                                    <option value="calcium carbonate (caco₃)">calcium carbonate (caco₃)</option>
+                                
+                                    <option value="mineral">mineral</option>
+                                
+                                    <option value="cellulose nanocellulose (cnc)">cellulose nanocellulose (cnc)</option>
+                                
+                                    <option value="environmentally friendly building materials">environmentally friendly building materials</option>
+                                
+                                    <option value="1d carbon nanofibers">1d carbon nanofibers</option>
+                                
+                                    <option value="anisotropic composite aerogel">anisotropic composite aerogel</option>
+                                
+                                    <option value="nanocellulose fibers">nanocellulose fibers</option>
+                                
+                                    <option value="he et al.">he et al.</option>
+                                
+                                    <option value="researchers">researchers</option>
+                                
+                                    <option value="kong et al.">kong et al.</option>
+                                
+                                    <option value="li et al.">li et al.</option>
+                                
+                                    <option value="suture interfaces">suture interfaces</option>
+                                
+                                    <option value="untreated wood">untreated wood</option>
+                                
+                                    <option value="compositions selected for scaffold manufacture">compositions selected for scaffold manufacture</option>
+                                
+                                    <option value="healthy bone">healthy bone</option>
+                                
+                                    <option value="larger pore sizes">larger pore sizes</option>
+                                
+                                    <option value="white delignified wood">white delignified wood</option>
+                                
+                                    <option value="white wood">white wood</option>
+                                
+                                    <option value="concentration">concentration</option>
+                                
+                                    <option value="method for synthesizing nanoporous materials">method for synthesizing nanoporous materials</option>
+                                
+                                    <option value="probes">probes</option>
+                                
+                                    <option value="sample cells">sample cells</option>
+                                
+                                    <option value="whole system designs">whole system designs</option>
+                                
+                                    <option value="natural structures such as horsetail and bamboo">natural structures such as horsetail and bamboo</option>
+                                
+                                    <option value="refining">refining</option>
+                                
+                                    <option value="synthesizing">synthesizing</option>
+                                
+                                    <option value="continuous 3d electrical conductivity networks">continuous 3d electrical conductivity networks</option>
+                                
+                                    <option value="ldh nanoplates">ldh nanoplates</option>
+                                
+                                    <option value="air-water interface">air-water interface</option>
+                                
+                                    <option value="chitosan matrix">chitosan matrix</option>
+                                
+                                    <option value="glass substrate">glass substrate</option>
+                                
+                                    <option value="interwoven keratin fiber layers">interwoven keratin fiber layers</option>
+                                
+                                    <option value="total work to failure">total work to failure</option>
+                                
+                                    <option value="transverse keratin fiber layers">transverse keratin fiber layers</option>
+                                
+                                    <option value="transversely oriented keratin fibers">transversely oriented keratin fibers</option>
+                                
+                                    <option value="turtle eggshells">turtle eggshells</option>
+                                
+                                    <option value="beta-turns">beta-turns</option>
+                                
+                                    <option value="large pseudo-elastic deformation">large pseudo-elastic deformation</option>
+                                
+                                    <option value="multilayers">multilayers</option>
+                                
+                                    <option value="keratin fibers">keratin fibers</option>
+                                
+                                    <option value="subsurface keratin layers">subsurface keratin layers</option>
+                                
+                                    <option value="neither extensible nor recoverable">neither extensible nor recoverable</option>
+                                
+                                    <option value="amorphous matrix">amorphous matrix</option>
+                                
+                                    <option value="alpha-keratin">alpha-keratin</option>
+                                
+                                    <option value="beta-structure">beta-structure</option>
+                                
+                                    <option value="quill shell structure alignment">quill shell structure alignment</option>
+                                
+                                    <option value="disulfide bonds">disulfide bonds</option>
+                                
+                                    <option value="large-scale keratin fibers">large-scale keratin fibers</option>
+                                
+                                    <option value="higher proportion">higher proportion</option>
+                                
+                                    <option value="leaf dry mass">leaf dry mass</option>
+                                
+                                    <option value="non-crystalline b-sheets">non-crystalline b-sheets</option>
+                                
+                                    <option value="nzphila pilipes spider silk fibers">nzphila pilipes spider silk fibers</option>
+                                
+                                    <option value="leaf mass per area">leaf mass per area</option>
+                                
+                                    <option value="shell">shell</option>
+                                
+                                    <option value="synthetic route">synthetic route</option>
+                                
+                                    <option value="security">security</option>
+                                
+                                    <option value="fruit wall">fruit wall</option>
+                                
+                                    <option value="lignified seed coat">lignified seed coat</option>
+                                
+                                    <option value="packaging materials">packaging materials</option>
+                                
+                                    <option value="alligator osteoderms">alligator osteoderms</option>
+                                
+                                    <option value="extrinsic mechanisms">extrinsic mechanisms</option>
+                                
+                                    <option value="intrinsic mechanisms">intrinsic mechanisms</option>
+                                
+                                    <option value="chloroplatinic acid">chloroplatinic acid</option>
+                                
+                                    <option value="ferric chloride">ferric chloride</option>
+                                
+                                    <option value="nickel skeleton">nickel skeleton</option>
+                                
+                                    <option value="cell supports">cell supports</option>
+                                
+                                    <option value="fichia pastoris cells">fichia pastoris cells</option>
+                                
+                                    <option value="neurite outgrowth">neurite outgrowth</option>
+                                
+                                    <option value="retinoic acid-differentiated sh-sy5/si cells">retinoic acid-differentiated sh-sy5/si cells</option>
+                                
+                                    <option value="undifferentiated sh-sy5/si cells">undifferentiated sh-sy5/si cells</option>
+                                
+                                    <option value="reduction process">reduction process</option>
+                                
+                                    <option value="polyvinyl alcohol (pva)">polyvinyl alcohol (pva)</option>
+                                
+                                    <option value="hydrazine">hydrazine</option>
+                                
+                                    <option value="go">go</option>
+                                
+                                    <option value="hydrochloric acid">hydrochloric acid</option>
+                                
+                                    <option value="monosodium citrate">monosodium citrate</option>
+                                
+                                    <option value="platinum">platinum</option>
+                                
+                                    <option value="poly(vinylidene fluoride-co-hexafluoropropylene)">poly(vinylidene fluoride-co-hexafluoropropylene)</option>
+                                
+                                    <option value="excellent electromagnetic shielding effectiveness (ems)">excellent electromagnetic shielding effectiveness (ems)</option>
+                                
+                                    <option value="interconnected 3d networks">interconnected 3d networks</option>
+                                
+                                    <option value="light weight">light weight</option>
+                                
+                                    <option value="non-pollution">non-pollution</option>
+                                
+                                    <option value="prominent merits">prominent merits</option>
+                                
+                                    <option value="dispersions">dispersions</option>
+                                
+                                    <option value="modified hummers method">modified hummers method</option>
+                                
+                                    <option value="ultrasonication">ultrasonication</option>
+                                
+                                    <option value="fe(iii)">fe(iii)</option>
+                                
+                                    <option value="poly(vinyl alcohol) (pva) solution">poly(vinyl alcohol) (pva) solution</option>
+                                
+                                    <option value="high-frequency loading">high-frequency loading</option>
+                                
+                                    <option value="parallel alignment">parallel alignment</option>
+                                
+                                    <option value="large forces">large forces</option>
+                                
+                                    <option value="low strains">low strains</option>
+                                
+                                    <option value="external mechanical loads">external mechanical loads</option>
+                                
+                                    <option value="low-frequency loading">low-frequency loading</option>
+                                
+                                    <option value="static loading">static loading</option>
+                                
+                                    <option value="calcite layers">calcite layers</option>
+                                
+                                    <option value="morphological remodeling">morphological remodeling</option>
+                                
+                                    <option value="stutter region">stutter region</option>
+                                
+                                    <option value="constant volume assumption">constant volume assumption</option>
+                                
+                                    <option value="distance_between_tips">distance_between_tips</option>
+                                
+                                    <option value="micropillars">micropillars</option>
+                                
+                                    <option value="height">height</option>
+                                
+                                    <option value="tilted_angle">tilted_angle</option>
+                                
+                                    <option value="distinct variations in contact area and stress distribution">distinct variations in contact area and stress distribution</option>
+                                
+                                    <option value="analytical solutions">analytical solutions</option>
+                                
+                                    <option value="bulk material constraints">bulk material constraints</option>
+                                
+                                    <option value="displacement measurements">displacement measurements</option>
+                                
+                                    <option value="reaction force">reaction force</option>
+                                
+                                    <option value="three-dimensional finite element simulations">three-dimensional finite element simulations</option>
+                                
+                                    <option value="crack deflection behavior">crack deflection behavior</option>
+                                
+                                    <option value="deformation mechanisms of tubules">deformation mechanisms of tubules</option>
+                                
+                                    <option value="tapered spiral geometry">tapered spiral geometry</option>
+                                
+                                    <option value="sg-b">sg-b</option>
+                                
+                                    <option value="second-order structures">second-order structures</option>
+                                
+                                    <option value="sg-a">sg-a</option>
+                                
+                                    <option value="thin bn coating">thin bn coating</option>
+                                
+                                    <option value="tunnel cracking layer">tunnel cracking layer</option>
+                                
+                                    <option value="biomimetic architectures">biomimetic architectures</option>
+                                
+                                    <option value="sg-c">sg-c</option>
+                                
+                                    <option value="liberal coating of bn">liberal coating of bn</option>
+                                
+                                    <option value="tunnel-cracking layer">tunnel-cracking layer</option>
+                                
+                                    <option value="xz architectures">xz architectures</option>
+                                
+                                    <option value="energy absorption capacity during fracture">energy absorption capacity during fracture</option>
+                                
+                                    <option value="mechanical performance">mechanical performance</option>
+                                
+                                    <option value="split hopkinson pressure bar">split hopkinson pressure bar</option>
+                                
+                                    <option value="dynamic mechanical properties">dynamic mechanical properties</option>
+                                
+                                    <option value="static mechanical properties">static mechanical properties</option>
+                                
+                                    <option value="chitosan-coated iron oxide nps">chitosan-coated iron oxide nps</option>
+                                
+                                    <option value="nanoscale silica fibers">nanoscale silica fibers</option>
+                                
+                                    <option value="poly(n-isopropylacrylamide)">poly(n-isopropylacrylamide)</option>
+                                
+                                    <option value="chi content">chi content</option>
+                                
+                                    <option value="adscs">adscs</option>
+                                
+                                    <option value="surface functionalization">surface functionalization</option>
+                                
+                                    <option value="normal scaffolds">normal scaffolds</option>
+                                
+                                    <option value="adipose-derived stem cells (adscs)">adipose-derived stem cells (adscs)</option>
+                                
+                                    <option value="hot dog-like scaffolds">hot dog-like scaffolds</option>
+                                
+                                    <option value="subsent biotemplating processes">subsent biotemplating processes</option>
+                                
+                                    <option value="chi">chi</option>
+                                
+                                    <option value="titanium surfaces">titanium surfaces</option>
+                                
+                                    <option value="molecular adhesion bonds">molecular adhesion bonds</option>
+                                
+                                    <option value="electrospun poly(e-caprolactone)">electrospun poly(e-caprolactone)</option>
+                                
+                                    <option value="cell division">cell division</option>
+                                
+                                    <option value="collagen sponges">collagen sponges</option>
+                                
+                                    <option value="genetics">genetics</option>
+                                
+                                    <option value="connective tissues (biological-tissue)">connective tissues (biological-tissue)</option>
+                                
+                                    <option value="bone-scale pore sizes">bone-scale pore sizes</option>
+                                
+                                    <option value="osteoconductivity">osteoconductivity</option>
+                                
+                                    <option value="osteoinductivity">osteoinductivity</option>
+                                
+                                    <option value="cell response">cell response</option>
+                                
+                                    <option value="surface quality modification">surface quality modification</option>
+                                
+                                    <option value="mg-ch4">mg-ch4</option>
+                                
+                                    <option value="cell contractility">cell contractility</option>
+                                
+                                    <option value="nuclear translocation of yes-associated protein">nuclear translocation of yes-associated protein</option>
+                                
+                                    <option value="vinculin expression">vinculin expression</option>
+                                
+                                    <option value="osteoconductivity and osteogenicity">osteoconductivity and osteogenicity</option>
+                                
+                                    <option value="chitosan-modified halloysite nanotubes hydrogel">chitosan-modified halloysite nanotubes hydrogel</option>
+                                
+                                    <option value="calibration">calibration</option>
+                                
+                                    <option value="load cells">load cells</option>
+                                
+                                    <option value="animal-specific experimental data">animal-specific experimental data</option>
+                                
+                                    <option value="in vitro shear experiments">in vitro shear experiments</option>
+                                
+                                    <option value="large load cell">large load cell</option>
+                                
+                                    <option value="small piezo load cell">small piezo load cell</option>
+                                
+                                    <option value="wiener filtering">wiener filtering</option>
+                                
+                                    <option value="stress variations">stress variations</option>
+                                
+                                    <option value="diameter">diameter</option>
+                                
+                                    <option value="experimental results">experimental results</option>
+                                
+                                    <option value="fe simulation">fe simulation</option>
+                                
+                                    <option value="from different animal species">from different animal species</option>
+                                
+                                    <option value="yield point">yield point</option>
+                                
+                                    <option value="elastic region">elastic region</option>
+                                
+                                    <option value="hardening region">hardening region</option>
+                                
+                                    <option value="logarithmic dependence on pulling rate">logarithmic dependence on pulling rate</option>
+                                
+                                    <option value="plateau region">plateau region</option>
+                                
+                                    <option value="linear elastic region">linear elastic region</option>
+                                
+                                    <option value="knight butterfly wings">knight butterfly wings</option>
+                                
+                                    <option value="electrospun active properties">electrospun active properties</option>
+                                
+                                    <option value="highly selective detection">highly selective detection</option>
+                                
+                                    <option value="rapid gas detection">rapid gas detection</option>
+                                
+                                    <option value="three-dimensional architectures">three-dimensional architectures</option>
+                                
+                                    <option value="ultralow concentrations">ultralow concentrations</option>
+                                
+                                    <option value="continuum plate theory">continuum plate theory</option>
+                                
+                                    <option value="complex patterns">complex patterns</option>
+                                
+                                    <option value="ripple formation">ripple formation</option>
+                                
+                                    <option value="wrinkle formation">wrinkle formation</option>
+                                
+                                    <option value="cnt-based 3d architectures and aerogels">cnt-based 3d architectures and aerogels</option>
+                                
+                                    <option value="electrophysiological signal transmission electrodes">electrophysiological signal transmission electrodes</option>
+                                
+                                    <option value="motion sensors">motion sensors</option>
+                                
+                                    <option value="functional filler">functional filler</option>
+                                
+                                    <option value="graphite">graphite</option>
+                                
+                                    <option value="bottom-up processing">bottom-up processing</option>
+                                
+                                    <option value="carbon-based materials">carbon-based materials</option>
+                                
+                                    <option value="large internal cavities">large internal cavities</option>
+                                
+                                    <option value="reduced stiffness">reduced stiffness</option>
+                                
+                                    <option value="beta-keratin">beta-keratin</option>
+                                
+                                    <option value="hydrogel matrix">hydrogel matrix</option>
+                                
+                                    <option value="mimics the mechanical properties and topography">mimics the mechanical properties and topography</option>
+                                
+                                    <option value="promotes the formation of organized structures">promotes the formation of organized structures</option>
+                                
+                                    <option value="crystal">crystal</option>
+                                
+                                    <option value="thf">thf</option>
+                                
+                                    <option value="thickest layer">thickest layer</option>
+                                
+                                    <option value="continuum">continuum</option>
+                                
+                                    <option value="hierarchical cellular material">hierarchical cellular material</option>
+                                
+                                    <option value="vessel elements">vessel elements</option>
+                                
+                                    <option value="boundary conditions (description)">boundary conditions (description)</option>
+                                
+                                    <option value="normal physiological structure and function">normal physiological structure and function</option>
+                                
+                                    <option value="conventional biomaterials">conventional biomaterials</option>
+                                
+                                    <option value="distinct constituents">distinct constituents</option>
+                                
+                                    <option value="native tissues">native tissues</option>
+                                
+                                    <option value="anisotropic properties">anisotropic properties</option>
+                                
+                                    <option value="cardiac contractility">cardiac contractility</option>
+                                
+                                    <option value="channeled highly porous microstructure">channeled highly porous microstructure</option>
+                                
+                                    <option value="conformational architecture">conformational architecture</option>
+                                
+                                    <option value="directed cellular attachment">directed cellular attachment</option>
+                                
+                                    <option value="mechanical forces">mechanical forces</option>
+                                
+                                    <option value="rgd peptide motifs">rgd peptide motifs</option>
+                                
+                                    <option value="mechanotransduction">mechanotransduction</option>
+                                
+                                    <option value="gene expression">gene expression</option>
+                                
+                                    <option value="signaling pathways">signaling pathways</option>
+                                
+                                    <option value="particle">particle</option>
+                                
+                                    <option value="hydrophilic-hydrophobic regions">hydrophilic-hydrophobic regions</option>
+                                
+                                    <option value="specific biomolecule-binding domains">specific biomolecule-binding domains</option>
+                                
+                                    <option value="external loading">external loading</option>
+                                
+                                    <option value="geometric nonlinearity">geometric nonlinearity</option>
+                                
+                                    <option value="interparticle interactions">interparticle interactions</option>
+                                
+                                    <option value="rotation angle">rotation angle</option>
+                                
+                                    <option value="reinforcement phase">reinforcement phase</option>
+                                
+                                    <option value="composite mechanical integrity or toughness">composite mechanical integrity or toughness</option>
+                                
+                                    <option value="matrix-reinforcement phase">matrix-reinforcement phase</option>
+                                
+                                    <option value="reinforcement directionality">reinforcement directionality</option>
+                                
+                                    <option value="unique additional functions">unique additional functions</option>
+                                
+                                    <option value="ec">ec</option>
+                                
+                                    <option value="focal tensile forces">focal tensile forces</option>
+                                
+                                    <option value="protein synthesis">protein synthesis</option>
+                                
+                                    <option value="(gamma_{{(rigid)}})">(gamma_{{(rigid)}})</option>
+                                
+                                    <option value="critical shear strain">critical shear strain</option>
+                                
+                                    <option value="edges">edges</option>
+                                
+                                    <option value="larger sheets">larger sheets</option>
+                                
+                                    <option value="midpoint">midpoint</option>
+                                
+                                    <option value="open edge">open edge</option>
+                                
+                                    <option value="small sheet sizes">small sheet sizes</option>
+                                
+                                    <option value="tensile force">tensile force</option>
+                                
+                                    <option value="uniform distribution">uniform distribution</option>
+                                
+                                    <option value="graphs">graphs</option>
+                                
+                                    <option value="collagen fiber reinforcement">collagen fiber reinforcement</option>
+                                
+                                    <option value="weak acids">weak acids</option>
+                                
+                                    <option value="carbon nanofilters">carbon nanofilters</option>
+                                
+                                    <option value="collagen fiber mixing">collagen fiber mixing</option>
+                                
+                                    <option value="collagen fiber composite fibers">collagen fiber composite fibers</option>
+                                
+                                    <option value="collagen fiber blending">collagen fiber blending</option>
+                                
+                                    <option value="electrospun nanomaterials">electrospun nanomaterials</option>
+                                
+                                    <option value="toxic degradation products">toxic degradation products</option>
+                                
+                                    <option value="(psi_{1})">(psi_{1})</option>
+                                
+                                    <option value="ea">ea</option>
+                                
+                                    <option value="pcf">pcf</option>
+                                
+                                    <option value="wave length">wave length</option>
+                                
+                                    <option value="excessive porosity">excessive porosity</option>
+                                
+                                    <option value="geometrical overlap">geometrical overlap</option>
+                                
+                                    <option value="(psi_{1})=0.5">(psi_{1})=0.5</option>
+                                
+                                    <option value="fold overlap">fold overlap</option>
+                                
+                                    <option value="energy absorption (ea)">energy absorption (ea)</option>
+                                
+                                    <option value="hhcs">hhcs</option>
+                                
+                                    <option value="peak crushing force (pcf)">peak crushing force (pcf)</option>
+                                
+                                    <option value="traditional profile configurations">traditional profile configurations</option>
+                                
+                                    <option value="apa">apa</option>
+                                
+                                    <option value="ideal elasticity">ideal elasticity</option>
+                                
+                                    <option value="biological fluids">biological fluids</option>
+                                
+                                    <option value="plga-nacl slurry">plga-nacl slurry</option>
+                                
+                                    <option value="plga-tcp slurry">plga-tcp slurry</option>
+                                
+                                    <option value="tcp">tcp</option>
+                                
+                                    <option value="supernatant">supernatant</option>
+                                
+                                    <option value="guide design">guide design</option>
+                                
+                                    <option value="optimal mechanical and biological properties">optimal mechanical and biological properties</option>
+                                
+                                    <option value="emulsion templating">emulsion templating</option>
+                                
+                                    <option value="ebt (electrochemical thinning)">ebt (electrochemical thinning)</option>
+                                
+                                    <option value="ecm (electrochemical machining)">ecm (electrochemical machining)</option>
+                                
+                                    <option value="complicated control over structure shape">complicated control over structure shape</option>
+                                
+                                    <option value="difficult-to-cut materials">difficult-to-cut materials</option>
+                                
+                                    <option value="fts (focused ion beam/scanning electron microscope lithography and etching)">fts (focused ion beam/scanning electron microscope lithography and etching)</option>
+                                
+                                    <option value="large-amplitude surface structures">large-amplitude surface structures</option>
+                                
+                                    <option value="uprm/upfc (ultraprecision grinding/cutting)">uprm/upfc (ultraprecision grinding/cutting)</option>
+                                
+                                    <option value="extreme small-size structures">extreme small-size structures</option>
+                                
+                                    <option value="upsm (ultraprecision diamond turning)">upsm (ultraprecision diamond turning)</option>
+                                
+                                    <option value="high accuracy machining">high accuracy machining</option>
+                                
+                                    <option value="soft materials applications">soft materials applications</option>
+                                
+                                    <option value="sla">sla</option>
+                                
+                                    <option value="kinetogami">kinetogami</option>
+                                
+                                    <option value="origami">origami</option>
+                                
+                                    <option value="anisotropic swelling">anisotropic swelling</option>
+                                
+                                    <option value="controlled swelling characteristics">controlled swelling characteristics</option>
+                                
+                                    <option value="31">31</option>
+                                
+                                    <option value="aluminosilicate acid (aaer)">aluminosilicate acid (aaer)</option>
+                                
+                                    <option value="epoxy resin">epoxy resin</option>
+                                
+                                    <option value="polymer layer">polymer layer</option>
+                                
+                                    <option value="al-o-c bonds">al-o-c bonds</option>
+                                
+                                    <option value="nanofibrillar cellulose">nanofibrillar cellulose</option>
+                                
+                                    <option value="nanoaminated composite films">nanoaminated composite films</option>
+                                
+                                    <option value="electrophoretic deposition">electrophoretic deposition</option>
+                                
+                                    <option value="natural nacre">natural nacre</option>
+                                
+                                    <option value="asperities">asperities</option>
+                                
+                                    <option value="inorganic layers">inorganic layers</option>
+                                
+                                    <option value="polymer layers">polymer layers</option>
+                                
+                                    <option value="ceramic layers">ceramic layers</option>
+                                
+                                    <option value="large mineral platelets">large mineral platelets</option>
+                                
+                                    <option value="smaller mineral crystals">smaller mineral crystals</option>
+                                
+                                    <option value="organic-inorganic ordered nanocomposite thin films">organic-inorganic ordered nanocomposite thin films</option>
+                                
+                                    <option value="strength_and_stiffness">strength_and_stiffness</option>
+                                
+                                    <option value="carbon dioxide">carbon dioxide</option>
+                                
+                                    <option value="ghgs">ghgs</option>
+                                
+                                    <option value="propionamide">propionamide</option>
+                                
+                                    <option value="critical angle">critical angle</option>
+                                
+                                    <option value="oc">oc</option>
+                                
+                                    <option value="on">on</option>
+                                
+                                    <option value="op">op</option>
+                                
+                                    <option value="mineralization">mineralization</option>
+                                
+                                    <option value="inorganic phase deposition">inorganic phase deposition</option>
+                                
+                                    <option value="in vitro nucleation assays">in vitro nucleation assays</option>
+                                
+                                    <option value="chitinous biopolymer">chitinous biopolymer</option>
+                                
+                                    <option value="bone mechanics">bone mechanics</option>
+                                
+                                    <option value="sem analysis">sem analysis</option>
+                                
+                                    <option value="protein cages">protein cages</option>
+                                
+                                    <option value="palm trees">palm trees</option>
+                                
+                                    <option value="property_gradients">property_gradients</option>
+                                
+                                    <option value="axial loading">axial loading</option>
+                                
+                                    <option value="brick-mud structures">brick-mud structures</option>
+                                
+                                    <option value="nature">nature</option>
+                                
+                                    <option value="ion gradients">ion gradients</option>
+                                
+                                    <option value="colorful structures">colorful structures</option>
+                                
+                                    <option value="continuous optimization">continuous optimization</option>
+                                
+                                    <option value="robustness of morphologies and materials">robustness of morphologies and materials</option>
+                                
+                                    <option value="dental ink formulations">dental ink formulations</option>
+                                
+                                    <option value="bone ink formulations">bone ink formulations</option>
+                                
+                                    <option value="osteogenic differentiation">osteogenic differentiation</option>
+                                
+                                    <option value="bioink">bioink</option>
+                                
+                                    <option value="co-axial printing techniques">co-axial printing techniques</option>
+                                
+                                    <option value="dispersion">dispersion</option>
+                                
+                                    <option value="electrostatic interactions">electrostatic interactions</option>
+                                
+                                    <option value="ordered structures">ordered structures</option>
+                                
+                                    <option value="collagen 1 (col 1)">collagen 1 (col 1)</option>
+                                
+                                    <option value="polycaprolactone (pcl)/clay-based scaffolds">polycaprolactone (pcl)/clay-based scaffolds</option>
+                                
+                                    <option value="stem cells">stem cells</option>
+                                
+                                    <option value="physicochemical properties">physicochemical properties</option>
+                                
+                                    <option value="β-tcp scaffolds">β-tcp scaffolds</option>
+                                
+                                    <option value="polyhipes">polyhipes</option>
+                                
+                                    <option value="pcair">pcair</option>
+                                
+                                    <option value="pdaac coating">pdaac coating</option>
+                                
+                                    <option value="acid-etching">acid-etching</option>
+                                
+                                    <option value="acid etching">acid etching</option>
+                                
+                                    <option value="alkaline heat treatment">alkaline heat treatment</option>
+                                
+                                    <option value="electrochemical polishing">electrochemical polishing</option>
+                                
+                                    <option value="various materials such as polymers or metals">various materials such as polymers or metals</option>
+                                
+                                    <option value="passive inert implants">passive inert implants</option>
+                                
+                                    <option value="photothermal heating">photothermal heating</option>
+                                
+                                    <option value="single-walled carbon nanotubes (swcnts)">single-walled carbon nanotubes (swcnts)</option>
+                                
+                                    <option value="transformation">transformation</option>
+                                
+                                    <option value="flir camera">flir camera</option>
+                                
+                                    <option value="spatiotemporal recording">spatiotemporal recording</option>
+                                
+                                    <option value="nir laser irradiation">nir laser irradiation</option>
+                                
+                                    <option value="non-radiative relaxation">non-radiative relaxation</option>
+                                
+                                    <option value="interfacial segregation">interfacial segregation</option>
+                                
+                                    <option value="microsphere-based scaffolds">microsphere-based scaffolds</option>
+                                
+                                    <option value="glycosaminoglycans">glycosaminoglycans</option>
+                                
+                                    <option value="tissue hydration">tissue hydration</option>
+                                
+                                    <option value="tissue lubrication">tissue lubrication</option>
+                                
+                                    <option value="glycosaminoglycan chains">glycosaminoglycan chains</option>
+                                
+                                    <option value="proteoglycan core protein">proteoglycan core protein</option>
+                                
+                                    <option value="fung">fung</option>
+                                
+                                    <option value="glycoprotein matrix">glycoprotein matrix</option>
+                                
+                                    <option value="viscoelastic materials">viscoelastic materials</option>
+                                
+                                    <option value="native tissue function">native tissue function</option>
+                                
+                                    <option value="homogeneous tissue substitutes">homogeneous tissue substitutes</option>
+                                
+                                    <option value="prisms">prisms</option>
+                                
+                                    <option value="higher birefringent retardance values">higher birefringent retardance values</option>
+                                
+                                    <option value="longer average sizes">longer average sizes</option>
+                                
+                                    <option value="core-shell nanotubes">core-shell nanotubes</option>
+                                
+                                    <option value="surface properties">surface properties</option>
+                                
+                                    <option value="go hydrogels">go hydrogels</option>
+                                
+                                    <option value="bet analysis">bet analysis</option>
+                                
+                                    <option value="bet surface area analysis">bet surface area analysis</option>
+                                
+                                    <option value="apatite layer thickness">apatite layer thickness</option>
+                                
+                                    <option value="phosphate groups">phosphate groups</option>
+                                
+                                    <option value="ion adsorption">ion adsorption</option>
+                                
+                                    <option value="human osteoblasts">human osteoblasts</option>
+                                
+                                    <option value="sbf">sbf</option>
+                                
+                                    <option value="hydroxyapatite formation">hydroxyapatite formation</option>
+                                
+                                    <option value="fourier transform infrared">fourier transform infrared</option>
+                                
+                                    <option value="biomimetic fibrillar interfaces">biomimetic fibrillar interfaces</option>
+                                
+                                    <option value="thin strips">thin strips</option>
+                                
+                                    <option value="critical structural size">critical structural size</option>
+                                
+                                    <option value="established phenomena in fracture mechanics">established phenomena in fracture mechanics</option>
+                                
+                                    <option value="flaw size">flaw size</option>
+                                
+                                    <option value="disparate properties">disparate properties</option>
+                                
+                                    <option value="bone biomechanics">bone biomechanics</option>
+                                
+                                    <option value="mineralized tendon">mineralized tendon</option>
+                                
+                                    <option value="synchrotron diffraction techniques">synchrotron diffraction techniques</option>
+                                
+                                    <option value="steel sheets">steel sheets</option>
+                                
+                                    <option value="slits">slits</option>
+                                
+                                    <option value="yielding behavior">yielding behavior</option>
+                                
+                                    <option value="biomimetics">biomimetics</option>
+                                
+                                    <option value="mesoscale">mesoscale</option>
+                                
+                                    <option value="assemblymechanisms">assemblymechanisms</option>
+                                
+                                    <option value="complex mechanics">complex mechanics</option>
+                                
+                                    <option value="principles of self-assembly">principles of self-assembly</option>
+                                
+                                    <option value="impact resistant materials">impact resistant materials</option>
+                                
+                                    <option value="water behavior near solid surfaces">water behavior near solid surfaces</option>
+                                
+                                    <option value="casting">casting</option>
+                                
+                                    <option value="coating">coating</option>
+                                
+                                    <option value="nanoscale material synthesis">nanoscale material synthesis</option>
+                                
+                                    <option value="preparation of nanoscale materials">preparation of nanoscale materials</option>
+                                
+                                    <option value="templating">templating</option>
+                                
+                                    <option value="thermal conversion">thermal conversion</option>
+                                
+                                    <option value="mineral composites">mineral composites</option>
+                                
+                                    <option value="evolutionary process">evolutionary process</option>
+                                
+                                    <option value="boltzmann distribution">boltzmann distribution</option>
+                                
+                                    <option value="ordered states">ordered states</option>
+                                
+                                    <option value="second law of thermodynamics">second law of thermodynamics</option>
+                                
+                                    <option value="self-organization">self-organization</option>
+                                
+                                    <option value="keratinous scales">keratinous scales</option>
+                                
+                                    <option value="green nanofiber composites">green nanofiber composites</option>
+                                
+                                    <option value="cellulose whiskers">cellulose whiskers</option>
+                                
+                                    <option value="natural plants">natural plants</option>
+                                
+                                    <option value="active units or modular building blocks for green, smart, and environmentally friendly electronic materials">active units or modular building blocks for green, smart, and environmentally friendly electronic materials</option>
+                                
+                                    <option value="transparent films">transparent films</option>
+                                
+                                    <option value="light transmittance (visible)">light transmittance (visible)</option>
+                                
+                                    <option value="tempo oxidized cellulose">tempo oxidized cellulose</option>
+                                
+                                    <option value="cnc">cnc</option>
+                                
+                                    <option value="pva/cnc nanocomposite hydrogels">pva/cnc nanocomposite hydrogels</option>
+                                
+                                    <option value="ta">ta</option>
+                                
+                                    <option value="artificial enamel">artificial enamel</option>
+                                
+                                    <option value="butterfly wing-based ph sensor">butterfly wing-based ph sensor</option>
+                                
+                                    <option value="water-soluble polymers">water-soluble polymers</option>
+                                
+                                    <option value="mxene dispersions">mxene dispersions</option>
+                                
+                                    <option value="biological performance limitations">biological performance limitations</option>
+                                
+                                    <option value="final composite material">final composite material</option>
+                                
+                                    <option value="hydroxyapatite (hap) chemical composition">hydroxyapatite (hap) chemical composition</option>
+                                
+                                    <option value="starting commercial hap powders">starting commercial hap powders</option>
+                                
+                                    <option value="linking of hap particles">linking of hap particles</option>
+                                
+                                    <option value="macroporosity">macroporosity</option>
+                                
+                                    <option value="organic phase vibrations">organic phase vibrations</option>
+                                
+                                    <option value="organic phase wetting">organic phase wetting</option>
+                                
+                                    <option value="regions with different sizes">regions with different sizes</option>
+                                
+                                    <option value="solid phase">solid phase</option>
+                                
+                                    <option value="releasability">releasability</option>
+                                
+                                    <option value="synthetic adhesives">synthetic adhesives</option>
+                                
+                                    <option value="detachment">detachment</option>
+                                
+                                    <option value="frictional adhesion forces">frictional adhesion forces</option>
+                                
+                                    <option value="higher adhesion and friction">higher adhesion and friction</option>
+                                
+                                    <option value="radial outward location of toes">radial outward location of toes</option>
+                                
+                                    <option value="rapid attachment">rapid attachment</option>
+                                
+                                    <option value="remarkable tunability">remarkable tunability</option>
+                                
+                                    <option value="seals">seals</option>
+                                
+                                    <option value="smaller separation angle">smaller separation angle</option>
+                                
+                                    <option value="some angle along surface">some angle along surface</option>
+                                
+                                    <option value="sophisticated toe actions">sophisticated toe actions</option>
+                                
+                                    <option value="strong tensile force">strong tensile force</option>
+                                
+                                    <option value="rough surfaces">rough surfaces</option>
+                                
+                                    <option value="spatulae">spatulae</option>
+                                
+                                    <option value="tarsal claws">tarsal claws</option>
+                                
+                                    <option value="gecko footpad">gecko footpad</option>
+                                
+                                    <option value="geometric changes">geometric changes</option>
+                                
+                                    <option value="ladybird beetles">ladybird beetles</option>
+                                
+                                    <option value="nanoscale dimensions">nanoscale dimensions</option>
+                                
+                                    <option value="terminal adhesion elements">terminal adhesion elements</option>
+                                
+                                    <option value="adherend surface">adherend surface</option>
+                                
+                                    <option value="adhesion failure">adhesion failure</option>
+                                
+                                    <option value="setal tips">setal tips</option>
+                                
+                                    <option value="spatula geometry">spatula geometry</option>
+                                
+                                    <option value="contact formation">contact formation</option>
+                                
+                                    <option value="adhesion">adhesion</option>
+                                
+                                    <option value="multicellular crosstalk">multicellular crosstalk</option>
+                                
+                                    <option value="multi-scale micro/nano-topography">multi-scale micro/nano-topography</option>
+                                
+                                    <option value="ti-6al-4v implants">ti-6al-4v implants</option>
+                                
+                                    <option value="afm images">afm images</option>
+                                
+                                    <option value="osseointegration">osseointegration</option>
+                                
+                                    <option value="importance">importance</option>
+                                
+                                    <option value="tissue growth">tissue growth</option>
+                                
+                                    <option value="wear reduction">wear reduction</option>
+                                
+                                    <option value="high robustness">high robustness</option>
+                                
+                                    <option value="custom testing protocols">custom testing protocols</option>
+                                
+                                    <option value="higher ph">higher ph</option>
+                                
+                                    <option value="age">age</option>
+                                
+                                    <option value="criticalstressintensityfactor">criticalstressintensityfactor</option>
+                                
+                                    <option value="brownian motion">brownian motion</option>
+                                
+                                    <option value="colloidal particles">colloidal particles</option>
+                                
+                                    <option value="hydrodynamic interactions">hydrodynamic interactions</option>
+                                
+                                    <option value="particle size">particle size</option>
+                                
+                                    <option value="loading history">loading history</option>
+                                
+                                    <option value="stress plateau">stress plateau</option>
+                                
+                                    <option value="low reynolds number fluid flows">low reynolds number fluid flows</option>
+                                
+                                    <option value="alignment behavior">alignment behavior</option>
+                                
+                                    <option value="cq-m1">cq-m1</option>
+                                
+                                    <option value="cq-m2">cq-m2</option>
+                                
+                                    <option value="shear rate">shear rate</option>
+                                
+                                    <option value="wind speeds exceeding 10 m/s">wind speeds exceeding 10 m/s</option>
+                                
+                                    <option value="hydrodynamic alignment">hydrodynamic alignment</option>
+                                
+                                    <option value="kink bands">kink bands</option>
+                                
+                                    <option value="shell materials">shell materials</option>
+                                
+                                    <option value="bast fiber">bast fiber</option>
+                                
+                                    <option value="mesolayers">mesolayers</option>
+                                
+                                    <option value="kinking">kinking</option>
+                                
+                                    <option value="mineral ligaments">mineral ligaments</option>
+                                
+                                    <option value="tile pullout">tile pullout</option>
+                                
+                                    <option value="acidic proteins">acidic proteins</option>
+                                
+                                    <option value="b-chitin">b-chitin</option>
+                                
+                                    <option value="nacreous shells">nacreous shells</option>
+                                
+                                    <option value="caco3 crystal growth">caco3 crystal growth</option>
+                                
+                                    <option value="silk-fibroin protein">silk-fibroin protein</option>
+                                
+                                    <option value="hydrogen bonding interactions">hydrogen bonding interactions</option>
+                                
+                                    <option value="wave propagation">wave propagation</option>
+                                
+                                    <option value="insoluble chitin sheet">insoluble chitin sheet</option>
+                                
+                                    <option value="soluble protein matrix">soluble protein matrix</option>
+                                
+                                    <option value="ua coating">ua coating</option>
+                                
+                                    <option value="aragonite">aragonite</option>
+                                
+                                    <option value="aragonite phase">aragonite phase</option>
+                                
+                                    <option value="vertical (c)-axis direction">vertical (c)-axis direction</option>
+                                
+                                    <option value="spacing between reinforcement units">spacing between reinforcement units</option>
+                                
+                                    <option value="tensile failure">tensile failure</option>
+                                
+                                    <option value="ternary rgo-dwnts-pcdo nanocomposites">ternary rgo-dwnts-pcdo nanocomposites</option>
+                                
+                                    <option value="nacre-like materials">nacre-like materials</option>
+                                
+                                    <option value="materiomics">materiomics</option>
+                                
+                                    <option value="medical applications">medical applications</option>
+                                
+                                    <option value="new materials">new materials</option>
+                                
+                                    <option value="revolutionary impact on engineering">revolutionary impact on engineering</option>
+                                
+                                    <option value="sustainable structures">sustainable structures</option>
+                                
+                                    <option value="synthesis">synthesis</option>
+                                
+                                    <option value="traditional constitutive models">traditional constitutive models</option>
+                                
+                                    <option value="severe plastic deformation (spd)-processed titanium alloys">severe plastic deformation (spd)-processed titanium alloys</option>
+                                
+                                    <option value="energy storage">energy storage</option>
+                                
+                                    <option value="damping properties">damping properties</option>
+                                
+                                    <option value="insect exo- and endocuticle">insect exo- and endocuticle</option>
+                                
+                                    <option value="strong interactions between layers">strong interactions between layers</option>
+                                
+                                    <option value="desiccation">desiccation</option>
+                                
+                                    <option value="friction between layers">friction between layers</option>
+                                
+                                    <option value="model 4_c">model 4_c</option>
+                                
+                                    <option value="valiant material">valiant material</option>
+                                
+                                    <option value="endocuticle">endocuticle</option>
+                                
+                                    <option value="lower density">lower density</option>
+                                
+                                    <option value="bouligand layers">bouligand layers</option>
+                                
+                                    <option value="membranous layer">membranous layer</option>
+                                
+                                    <option value="arthrodial membrane">arthrodial membrane</option>
+                                
+                                    <option value="anterioredge">anterioredge</option>
+                                
+                                    <option value="insignificant increase in ered">insignificant increase in ered</option>
+                                
+                                    <option value="significant increase in h">significant increase in h</option>
+                                
+                                    <option value="cuticle surface failure">cuticle surface failure</option>
+                                
+                                    <option value="waterproofing">waterproofing</option>
+                                
+                                    <option value="dimensional parameters">dimensional parameters</option>
+                                
+                                    <option value="mode-i loading">mode-i loading</option>
+                                
+                                    <option value="mode-ii loading">mode-ii loading</option>
+                                
+                                    <option value="apparent fracture toughness">apparent fracture toughness</option>
+                                
+                                    <option value="leaching liquor">leaching liquor</option>
+                                
+                                    <option value="nih/3t3 cells">nih/3t3 cells</option>
+                                
+                                    <option value="dmem medium">dmem medium</option>
+                                
+                                    <option value="fbs">fbs</option>
+                                
+                                    <option value="penicillin">penicillin</option>
+                                
+                                    <option value="streptomycin">streptomycin</option>
+                                
+                                    <option value="mem supplemented medium">mem supplemented medium</option>
+                                
+                                    <option value="forwarddifferencemethod">forwarddifferencemethod</option>
+                                
+                                    <option value="stiffness matrix">stiffness matrix</option>
+                                
+                                    <option value="jaumannrateofkirchhoffstress">jaumannrateofkirchhoffstress</option>
+                                
+                                    <option value="chelydra_serpentina">chelydra_serpentina</option>
+                                
+                                    <option value="dry_specimens">dry_specimens</option>
+                                
+                                    <option value="nanoindentation_measurements">nanoindentation_measurements</option>
+                                
+                                    <option value="red_eared_slider_turtle">red_eared_slider_turtle</option>
+                                
+                                    <option value="terrapene_cardina">terrapene_cardina</option>
+                                
+                                    <option value="decreased_mechanical_properties">decreased_mechanical_properties</option>
+                                
+                                    <option value="gecko setae">gecko setae</option>
+                                
+                                    <option value="escap">escap</option>
+                                
+                                    <option value="mammalian bones">mammalian bones</option>
+                                
+                                    <option value="patella">patella</option>
+                                
+                                    <option value="angular fluctuations (main contribution)">angular fluctuations (main contribution)</option>
+                                
+                                    <option value="length fluctuations">length fluctuations</option>
+                                
+                                    <option value="chitin (a-form)">chitin (a-form)</option>
+                                
+                                    <option value="computer-aided design">computer-aided design</option>
+                                
+                                    <option value="nature's hierarchical structuring">nature's hierarchical structuring</option>
+                                
+                                    <option value="enhanced performance">enhanced performance</option>
+                                
+                                    <option value="size scales">size scales</option>
+                                
+                                    <option value="electrostatic cnc-cnc interactions">electrostatic cnc-cnc interactions</option>
+                                
+                                    <option value="high-dielectric-constant solvents">high-dielectric-constant solvents</option>
+                                
+                                    <option value="non-polar regime">non-polar regime</option>
+                                
+                                    <option value="polar solvents">polar solvents</option>
+                                
+                                    <option value="chiral mesoporous silica">chiral mesoporous silica</option>
+                                
+                                    <option value="chiral nematic phase">chiral nematic phase</option>
+                                
+                                    <option value="gold nanorods">gold nanorods</option>
+                                
+                                    <option value="organo-silica nanoparticles">organo-silica nanoparticles</option>
+                                
+                                    <option value="silica nanoparticles">silica nanoparticles</option>
+                                
+                                    <option value="fluorescent cadmium sulfide quantum dots">fluorescent cadmium sulfide quantum dots</option>
+                                
+                                    <option value="enhanced thermal stability">enhanced thermal stability</option>
+                                
+                                    <option value="cellulose sources (wood pulp or bacterial celluloses)">cellulose sources (wood pulp or bacterial celluloses)</option>
+                                
+                                    <option value="cobalt ferrite nanoparticles">cobalt ferrite nanoparticles</option>
+                                
+                                    <option value="straight and several millimeters long tubular pores">straight and several millimeters long tubular pores</option>
+                                
+                                    <option value="strong hydrogen bonding interactions">strong hydrogen bonding interactions</option>
+                                
+                                    <option value="amorphous domains">amorphous domains</option>
+                                
+                                    <option value="paracrystalline domains">paracrystalline domains</option>
+                                
+                                    <option value="cellulose nanocrystals (cncs)">cellulose nanocrystals (cncs)</option>
+                                
+                                    <option value="supercontraction">supercontraction</option>
+                                
+                                    <option value="hydrogen bonds (h-bonds)">hydrogen bonds (h-bonds)</option>
+                                
+                                    <option value="size reduction">size reduction</option>
+                                
+                                    <option value="pitch height">pitch height</option>
+                                
+                                    <option value="bet measurements">bet measurements</option>
+                                
+                                    <option value="surface area">surface area</option>
+                                
+                                    <option value="reduced moduli">reduced moduli</option>
+                                
+                                    <option value="berkovich diamond tip">berkovich diamond tip</option>
+                                
+                                    <option value="holdingperiod">holdingperiod</option>
+                                
+                                    <option value="hyistron/bruker tb950 tribolendenter">hyistron/bruker tb950 tribolendenter</option>
+                                
+                                    <option value="loading rates">loading rates</option>
+                                
+                                    <option value="relativehumidity">relativehumidity</option>
+                                
+                                    <option value="nanoindentation techniques">nanoindentation techniques</option>
+                                
+                                    <option value="average thicknesses">average thicknesses</option>
+                                
+                                    <option value="close packing">close packing</option>
+                                
+                                    <option value="highly ordered and anisotropic nanostructures">highly ordered and anisotropic nanostructures</option>
+                                
+                                    <option value="cxg_pa-h3 hydrogels">cxg_pa-h3 hydrogels</option>
+                                
+                                    <option value="atelo-fibers">atelo-fibers</option>
+                                
+                                    <option value="telo-fibers">telo-fibers</option>
+                                
+                                    <option value="discrete fibrils">discrete fibrils</option>
+                                
+                                    <option value="highly aligned fibrils">highly aligned fibrils</option>
+                                
+                                    <option value="isoitropic orientation">isoitropic orientation</option>
+                                
+                                    <option value="multiphase structure">multiphase structure</option>
+                                
+                                    <option value="contact stiffness">contact stiffness</option>
+                                
+                                    <option value="oliver-phar method">oliver-phar method</option>
+                                
+                                    <option value="soft quasi-1d nanostructures">soft quasi-1d nanostructures</option>
+                                
+                                    <option value="alanine residues">alanine residues</option>
+                                
+                                    <option value="arginine residues">arginine residues</option>
+                                
+                                    <option value="asparagine residues">asparagine residues</option>
+                                
+                                    <option value="aspartic acid residues">aspartic acid residues</option>
+                                
+                                    <option value="protein elastic properties">protein elastic properties</option>
+                                
+                                    <option value="nonlinear behavior">nonlinear behavior</option>
+                                
+                                    <option value="polymer network rupture">polymer network rupture</option>
+                                
+                                    <option value="shearmodulus">shearmodulus</option>
+                                
+                                    <option value="adhesive layer">adhesive layer</option>
+                                
+                                    <option value="increased shear modulus">increased shear modulus</option>
+                                
+                                    <option value="reduced shear modulus">reduced shear modulus</option>
+                                
+                                    <option value="collagen fiber deviation angle">collagen fiber deviation angle</option>
+                                
+                                    <option value="alpha-helix">alpha-helix</option>
+                                
+                                    <option value="rsf fibers">rsf fibers</option>
+                                
+                                    <option value="β-sheets">β-sheets</option>
+                                
+                                    <option value="keratinous_materials">keratinous_materials</option>
+                                
+                                    <option value="regenerated silk fibroin (rsf) fibers">regenerated silk fibroin (rsf) fibers</option>
+                                
+                                    <option value="prions">prions</option>
+                                
+                                    <option value="weak hydrogen bonds">weak hydrogen bonds</option>
+                                
+                                    <option value="three-dimensional structures">three-dimensional structures</option>
+                                
+                                    <option value="bs">bs</option>
+                                
+                                    <option value="control strength">control strength</option>
+                                
+                                    <option value="maximum plastic strain">maximum plastic strain</option>
+                                
+                                    <option value="shear displacement">shear displacement</option>
+                                
+                                    <option value="small-strain elastic modulus">small-strain elastic modulus</option>
+                                
+                                    <option value="antiparallel arrangements">antiparallel arrangements</option>
+                                
+                                    <option value="full-length tau fibrils">full-length tau fibrils</option>
+                                
+                                    <option value="fibroin">fibroin</option>
+                                
+                                    <option value="β-crystallite">β-crystallite</option>
+                                
+                                    <option value="disordered random coil">disordered random coil</option>
+                                
+                                    <option value="intermediate states">intermediate states</option>
+                                
+                                    <option value="breaking of hydrogen bonds">breaking of hydrogen bonds</option>
+                                
+                                    <option value="decrease in fiber diameter">decrease in fiber diameter</option>
+                                
+                                    <option value="increase in amorphous content">increase in amorphous content</option>
+                                
+                                    <option value="nanocrystals carrying the supplied load">nanocrystals carrying the supplied load</option>
+                                
+                                    <option value="natural silk fibers">natural silk fibers</option>
+                                
+                                    <option value="unfolding of secondary structures">unfolding of secondary structures</option>
+                                
+                                    <option value="self-folding materials">self-folding materials</option>
+                                
+                                    <option value="cellular layers">cellular layers</option>
+                                
+                                    <option value="high packing density">high packing density</option>
+                                
+                                    <option value="intercellular matrix">intercellular matrix</option>
+                                
+                                    <option value="microstructure-property relationships">microstructure-property relationships</option>
+                                
+                                    <option value="outer hard shell">outer hard shell</option>
+                                
+                                    <option value="reinforcing fibers">reinforcing fibers</option>
+                                
+                                    <option value="similar high performance properties">similar high performance properties</option>
+                                
+                                    <option value="compressive_stress">compressive_stress</option>
+                                
+                                    <option value="energy absorption mechanisms">energy absorption mechanisms</option>
+                                
+                                    <option value="failure strain">failure strain</option>
+                                
+                                    <option value="young modulus">young modulus</option>
+                                
+                                    <option value="pearl oyster coccoliths">pearl oyster coccoliths</option>
+                                
+                                    <option value="inorganic materials">inorganic materials</option>
+                                
+                                    <option value="mineralized regions">mineralized regions</option>
+                                
+                                    <option value="plywood-like laminae">plywood-like laminae</option>
+                                
+                                    <option value="porous channels">porous channels</option>
+                                
+                                    <option value="unmineralized regions">unmineralized regions</option>
+                                
+                                    <option value="single fibers">single fibers</option>
+                                
+                                    <option value="fish scales">fish scales</option>
+                                
+                                    <option value="homogenization methods">homogenization methods</option>
+                                
+                                    <option value="aligned fiber bundles">aligned fiber bundles</option>
+                                
+                                    <option value="twisted plywood-type sheets">twisted plywood-type sheets</option>
+                                
+                                    <option value="mantis shrimp dactyl club">mantis shrimp dactyl club</option>
+                                
+                                    <option value="defensive materials">defensive materials</option>
+                                
+                                    <option value="energy absorbing materials">energy absorbing materials</option>
+                                
+                                    <option value="alternating layers of chitin and protein">alternating layers of chitin and protein</option>
+                                
+                                    <option value="energy absorption capabilities">energy absorption capabilities</option>
+                                
+                                    <option value="twist-aligned nanofiber lamellae">twist-aligned nanofiber lamellae</option>
+                                
+                                    <option value="kaolin ceramic filaments">kaolin ceramic filaments</option>
+                                
+                                    <option value="breaking strain">breaking strain</option>
+                                
+                                    <option value="implant interface">implant interface</option>
+                                
+                                    <option value="light guiding media">light guiding media</option>
+                                
+                                    <option value="aquoplastics material">aquoplastics material</option>
+                                
+                                    <option value="endothelial cells">endothelial cells</option>
+                                
+                                    <option value="control films">control films</option>
+                                
+                                    <option value="self-healing properties">self-healing properties</option>
+                                
+                                    <option value="curli fibers">curli fibers</option>
+                                
+                                    <option value="gel matrix">gel matrix</option>
+                                
+                                    <option value="sfc">sfc</option>
+                                
+                                    <option value="native biofilms">native biofilms</option>
+                                
+                                    <option value="embedded microbial cells">embedded microbial cells</option>
+                                
+                                    <option value="sf (semi-flexible polymer)">sf (semi-flexible polymer)</option>
+                                
+                                    <option value="bioinspired metallopolymers">bioinspired metallopolymers</option>
+                                
+                                    <option value="biopolymer-based nanocomposite hydrogels">biopolymer-based nanocomposite hydrogels</option>
+                                
+                                    <option value="damaged hydrogels">damaged hydrogels</option>
+                                
+                                    <option value="hidden length (20)">hidden length (20)</option>
+                                
+                                    <option value="marine snail egg cases (25)">marine snail egg cases (25)</option>
+                                
+                                    <option value="mussel byssus (26)">mussel byssus (26)</option>
+                                
+                                    <option value="sacrificial bonds (22)">sacrificial bonds (22)</option>
+                                
+                                    <option value="spider silks (24)">spider silks (24)</option>
+                                
+                                    <option value="worm silks (23)">worm silks (23)</option>
+                                
+                                    <option value="disulfide linkages">disulfide linkages</option>
+                                
+                                    <option value="interchain peptide linkages">interchain peptide linkages</option>
+                                
+                                    <option value="intermediate filaments">intermediate filaments</option>
+                                
+                                    <option value="matrix proteins">matrix proteins</option>
+                                
+                                    <option value="chapman/hearle model">chapman/hearle model</option>
+                                
+                                    <option value="pleated sheets">pleated sheets</option>
+                                
+                                    <option value="crystalline beta-keratin filaments">crystalline beta-keratin filaments</option>
+                                
+                                    <option value="hard-shelled turtles">hard-shelled turtles</option>
+                                
+                                    <option value="cc unfolding">cc unfolding</option>
+                                
+                                    <option value="contact length (l_c)">contact length (l_c)</option>
+                                
+                                    <option value="unfolding force (f_ap)">unfolding force (f_ap)</option>
+                                
+                                    <option value="unfolding forces">unfolding forces</option>
+                                
+                                    <option value="a-keratin protofibrils">a-keratin protofibrils</option>
+                                
+                                    <option value="3d printing materials">3d printing materials</option>
+                                
+                                    <option value="diversity">diversity</option>
+                                
+                                    <option value="biological hierarchical materials">biological hierarchical materials</option>
+                                
+                                    <option value="intermediate scales">intermediate scales</option>
+                                
+                                    <option value="safe transmission">safe transmission</option>
+                                
+                                    <option value="universality">universality</option>
+                                
+                                    <option value="mof crystal">mof crystal</option>
+                                
+                                    <option value="extrusion die">extrusion die</option>
+                                
+                                    <option value="filament">filament</option>
+                                
+                                    <option value="sapphire water-jet cutting nozzle">sapphire water-jet cutting nozzle</option>
+                                
+                                    <option value="zirconia media">zirconia media</option>
+                                
+                                    <option value="deionized water">deionized water</option>
+                                
+                                    <option value="hierarchical interconnected porous poly(carbonate-urea)urethane (puu)-polyhedral oligomeric silsesquioxane (poss) scaffolds">hierarchical interconnected porous poly(carbonate-urea)urethane (puu)-polyhedral oligomeric silsesquioxane (poss) scaffolds</option>
+                                
+                                    <option value="aragonite crystals">aragonite crystals</option>
+                                
+                                    <option value="residual acid">residual acid</option>
+                                
+                                    <option value="diffusion water">diffusion water</option>
+                                
+                                    <option value="fused deposition modeling (fdm)">fused deposition modeling (fdm)</option>
+                                
+                                    <option value="printing preforms">printing preforms</option>
+                                
+                                    <option value="low-temperature deposition manufacturing (ldm)">low-temperature deposition manufacturing (ldm)</option>
+                                
+                                    <option value="3d-tips process">3d-tips process</option>
+                                
+                                    <option value="puu-poss nanohybrid">puu-poss nanohybrid</option>
+                                
+                                    <option value="water-soluble polyvinyl alcohol (pva)">water-soluble polyvinyl alcohol (pva)</option>
+                                
+                                    <option value="ar+ ion implantation (aii)">ar+ ion implantation (aii)</option>
+                                
+                                    <option value="fr">fr</option>
+                                
+                                    <option value="b+ ion implantation (bii)">b+ ion implantation (bii)</option>
+                                
+                                    <option value="ion implantation (ii)">ion implantation (ii)</option>
+                                
+                                    <option value="n2+ ion implantation (nii)">n2+ ion implantation (nii)</option>
+                                
+                                    <option value="oxidation (ox)">oxidation (ox)</option>
+                                
+                                    <option value="ac">ac</option>
+                                
+                                    <option value="ch">ch</option>
+                                
+                                    <option value="tr">tr</option>
+                                
+                                    <option value="lc">lc</option>
+                                
+                                    <option value="uc">uc</option>
+                                
+                                    <option value="cell attachment enhancement">cell attachment enhancement</option>
+                                
+                                    <option value="electrochemical anodization">electrochemical anodization</option>
+                                
+                                    <option value="titanium-based implants">titanium-based implants</option>
+                                
+                                    <option value="fluoride anions">fluoride anions</option>
+                                
+                                    <option value="anodized tio2">anodized tio2</option>
+                                
+                                    <option value="implant material">implant material</option>
+                                
+                                    <option value="low density">low density</option>
+                                
+                                    <option value="dry fibers">dry fibers</option>
+                                
+                                    <option value="cryo-tem">cryo-tem</option>
+                                
+                                    <option value="dry state">dry state</option>
+                                
+                                    <option value="hydrated state">hydrated state</option>
+                                
+                                    <option value="100 nm">100 nm</option>
+                                
+                                    <option value="active materials">active materials</option>
+                                
+                                    <option value="fibrous electrode threads">fibrous electrode threads</option>
+                                
+                                    <option value="biological gluing material">biological gluing material</option>
+                                
+                                    <option value="enhanced mechanical stability">enhanced mechanical stability</option>
+                                
+                                    <option value="drying process">drying process</option>
+                                
+                                    <option value="inline coating process">inline coating process</option>
+                                
+                                    <option value="enhanced capacity">enhanced capacity</option>
+                                
+                                    <option value="fibrous libs">fibrous libs</option>
+                                
+                                    <option value="hierarchical weaving">hierarchical weaving</option>
+                                
+                                    <option value="twisting">twisting</option>
+                                
+                                    <option value="fibrous all-in-one monolith electrodes">fibrous all-in-one monolith electrodes</option>
+                                
+                                    <option value="wearable lithium-ion batteries">wearable lithium-ion batteries</option>
+                                
+                                    <option value="increased packing density">increased packing density</option>
+                                
+                                    <option value="linear capacity">linear capacity</option>
+                                
+                                    <option value="porous membrane shell layer">porous membrane shell layer</option>
+                                
+                                    <option value="highest reported linear capacities">highest reported linear capacities</option>
+                                
+                                    <option value="single anode and cathode threads">single anode and cathode threads</option>
+                                
+                                    <option value="short genetic tags">short genetic tags</option>
+                                
+                                    <option value="crispr">crispr</option>
+                                
+                                    <option value="induced pluripotent stem cells (ipsc)">induced pluripotent stem cells (ipsc)</option>
+                                
+                                    <option value="organ-noid">organ-noid</option>
+                                
+                                    <option value="organ-on-a-chip">organ-on-a-chip</option>
+                                
+                                    <option value="nanogold molecules">nanogold molecules</option>
+                                
+                                    <option value="target proteins">target proteins</option>
+                                
+                                    <option value="ultra-fast immunolabeling techniques">ultra-fast immunolabeling techniques</option>
+                                
+                                    <option value="cnt arrays">cnt arrays</option>
+                                
+                                    <option value="acetone">acetone</option>
+                                
+                                    <option value="capillary action">capillary action</option>
+                                
+                                    <option value="controlled nanoscale features">controlled nanoscale features</option>
+                                
+                                    <option value="thermally oxidized silicon wafer">thermally oxidized silicon wafer</option>
+                                
+                                    <option value="thin film catalyst">thin film catalyst</option>
+                                
+                                    <option value="su-8 photoresist">su-8 photoresist</option>
+                                
+                                    <option value="transfer molding technique">transfer molding technique</option>
+                                
+                                    <option value="polydimethylsiloxane">polydimethylsiloxane</option>
+                                
+                                    <option value="centrifugation">centrifugation</option>
+                                
+                                    <option value="whatman 1 filter">whatman 1 filter</option>
+                                
+                                    <option value="discoloration">discoloration</option>
+                                
+                                    <option value="layered structural nanocomposites">layered structural nanocomposites</option>
+                                
+                                    <option value="composite scaffolds">composite scaffolds</option>
+                                
+                                    <option value="intersliding">intersliding</option>
+                                
+                                    <option value="functional silk fibers">functional silk fibers</option>
+                                
+                                    <option value="pcl during acetone post-treatment">pcl during acetone post-treatment</option>
+                                
+                                    <option value="feather_rachis">feather_rachis</option>
+                                
+                                    <option value="cvd">cvd</option>
+                                
+                                    <option value="huvecs (human umbilical vein endothelial cells)">huvecs (human umbilical vein endothelial cells)</option>
+                                
+                                    <option value="mesenchymal stem cells (mscs)">mesenchymal stem cells (mscs)</option>
+                                
+                                    <option value="pdacs">pdacs</option>
+                                
+                                    <option value="biomimetic design strategy">biomimetic design strategy</option>
+                                
+                                    <option value="high specific strength">high specific strength</option>
+                                
+                                    <option value="low coefficient of friction">low coefficient of friction</option>
+                                
+                                    <option value="low wear rate">low wear rate</option>
+                                
+                                    <option value="mineral fillers">mineral fillers</option>
+                                
+                                    <option value="natural composite shell system">natural composite shell system</option>
+                                
+                                    <option value="helicoidal architected materials">helicoidal architected materials</option>
+                                
+                                    <option value="interpenetrating pore canal tubule fibers">interpenetrating pore canal tubule fibers</option>
+                                
+                                    <option value="z-pinning">z-pinning</option>
+                                
+                                    <option value="calcium">calcium</option>
+                                
+                                    <option value="lipolysis">lipolysis</option>
+                                
+                                    <option value="barrier integrity">barrier integrity</option>
+                                
+                                    <option value="relative levels">relative levels</option>
+                                
+                                    <option value="edx spectroscopy">edx spectroscopy</option>
+                                
+                                    <option value="-oh groups of pva/cnc matrix">-oh groups of pva/cnc matrix</option>
+                                
+                                    <option value="pva/cnc matrix">pva/cnc matrix</option>
+                                
+                                    <option value="hydrogel synthesis">hydrogel synthesis</option>
+                                
+                                    <option value="shrinking behavior">shrinking behavior</option>
+                                
+                                    <option value="aligned microstructures">aligned microstructures</option>
+                                
+                                    <option value="dynamic networks">dynamic networks</option>
+                                
+                                    <option value="modification strategies">modification strategies</option>
+                                
+                                    <option value="rigid fillers">rigid fillers</option>
+                                
+                                    <option value="solvent-induced strong and tough hydrogels">solvent-induced strong and tough hydrogels</option>
+                                
+                                    <option value="supramolecular interactions">supramolecular interactions</option>
+                                
+                                    <option value="wound healing">wound healing</option>
+                                
+                                    <option value="water-swollen polymer networks">water-swollen polymer networks</option>
+                                
+                                    <option value="swelling behavior">swelling behavior</option>
+                                
+                                    <option value="binary solvent-exchange-induced self-assembly gelation method">binary solvent-exchange-induced self-assembly gelation method</option>
+                                
+                                    <option value="bispenol a (bpa)">bispenol a (bpa)</option>
+                                
+                                    <option value="poly(ethylene imine) (pei)">poly(ethylene imine) (pei)</option>
+                                
+                                    <option value="sebacic acid (sa)">sebacic acid (sa)</option>
+                                
+                                    <option value="carboxyleatine acrylamide">carboxyleatine acrylamide</option>
+                                
+                                    <option value="carboxyleatine dimethylcarbate">carboxyleatine dimethylcarbate</option>
+                                
+                                    <option value="stem cell preservation">stem cell preservation</option>
+                                
+                                    <option value="cnt alignment">cnt alignment</option>
+                                
+                                    <option value="host-guest interactions">host-guest interactions</option>
+                                
+                                    <option value="multifunctionality (e.g., ph responsiveness)">multifunctionality (e.g., ph responsiveness)</option>
+                                
+                                    <option value="quick recovery">quick recovery</option>
+                                
+                                    <option value="mussel adhesive proteins (maps)">mussel adhesive proteins (maps)</option>
+                                
+                                    <option value="alginate hydrogel raw solutions">alginate hydrogel raw solutions</option>
+                                
+                                    <option value="hydrogen bonding microdomains">hydrogen bonding microdomains</option>
+                                
+                                    <option value="liu wenguang">liu wenguang</option>
+                                
+                                    <option value="pnaga">pnaga</option>
+                                
+                                    <option value="pnasc">pnasc</option>
+                                
+                                    <option value="supramolecular polymer hydrogels">supramolecular polymer hydrogels</option>
+                                
+                                    <option value="efficient energy dissipation hydrogels">efficient energy dissipation hydrogels</option>
+                                
+                                    <option value="hydrogel building blocks">hydrogel building blocks</option>
+                                
+                                    <option value="neotissue formation">neotissue formation</option>
+                                
+                                    <option value="optimal environments">optimal environments</option>
+                                
+                                    <option value="ethanol">ethanol</option>
+                                
+                                    <option value="bulk formation">bulk formation</option>
+                                
+                                    <option value="microfluidic-based generation">microfluidic-based generation</option>
+                                
+                                    <option value="fiberglass woven fabrics">fiberglass woven fabrics</option>
+                                
+                                    <option value="long-term stability">long-term stability</option>
+                                
+                                    <option value="pharmaceuticals">pharmaceuticals</option>
+                                
+                                    <option value="physical crosslinking points">physical crosslinking points</option>
+                                
+                                    <option value="potential degradation">potential degradation</option>
+                                
+                                    <option value="mesenchymalstemcells">mesenchymalstemcells</option>
+                                
+                                    <option value="snfs">snfs</option>
+                                
+                                    <option value="spatiotemporally controllable crosslinking">spatiotemporally controllable crosslinking</option>
+                                
+                                    <option value="chondrogenesis study">chondrogenesis study</option>
+                                
+                                    <option value="col1a1">col1a1</option>
+                                
+                                    <option value="col2a1">col2a1</option>
+                                
+                                    <option value="sox9">sox9</option>
+                                
+                                    <option value="osteogenesis study">osteogenesis study</option>
+                                
+                                    <option value="concentration gradient">concentration gradient</option>
+                                
+                                    <option value="bt13derivative">bt13derivative</option>
+                                
+                                    <option value="bfgf">bfgf</option>
+                                
+                                    <option value="fe3+">fe3+</option>
+                                
+                                    <option value="p(am-an-ma)">p(am-an-ma)</option>
+                                
+                                    <option value="mechanical durability">mechanical durability</option>
+                                
+                                    <option value="self-recovery ability">self-recovery ability</option>
+                                
+                                    <option value="strain-stiffening properties">strain-stiffening properties</option>
+                                
+                                    <option value="electric potential">electric potential</option>
+                                
+                                    <option value="chitosan (cs) tubules and membranes or wires">chitosan (cs) tubules and membranes or wires</option>
+                                
+                                    <option value="multiple h-bonding interactions">multiple h-bonding interactions</option>
+                                
+                                    <option value="post-crosslinking strategy">post-crosslinking strategy</option>
+                                
+                                    <option value="ta-pva/cnc hydrogels">ta-pva/cnc hydrogels</option>
+                                
+                                    <option value="ta macromolecules">ta macromolecules</option>
+                                
+                                    <option value="commercially pure titanium (cp-ti)">commercially pure titanium (cp-ti)</option>
+                                
+                                    <option value="absorption">absorption</option>
+                                
+                                    <option value="desorption">desorption</option>
+                                
+                                    <option value="urethane dimer">urethane dimer</option>
+                                
+                                    <option value="coarse-graining techniques">coarse-graining techniques</option>
+                                
+                                    <option value="hydrogen-bond network">hydrogen-bond network</option>
+                                
+                                    <option value="intermolecular forces">intermolecular forces</option>
+                                
+                                    <option value="agglomeration">agglomeration</option>
+                                
+                                    <option value="core layer">core layer</option>
+                                
+                                    <option value="underlying nano- and microscale structures">underlying nano- and microscale structures</option>
+                                
+                                    <option value="extract global physical and mechanical properties">extract global physical and mechanical properties</option>
+                                
+                                    <option value="computational tools">computational tools</option>
+                                
+                                    <option value="experimental tools">experimental tools</option>
+                                
+                                    <option value="handshaking between methods">handshaking between methods</option>
+                                
+                                    <option value="results from atomistic, molecular or mesoscale simulations">results from atomistic, molecular or mesoscale simulations</option>
+                                
+                                    <option value="tendon-to-bone insertion site">tendon-to-bone insertion site</option>
+                                
+                                    <option value="understanding mechanical behavior">understanding mechanical behavior</option>
+                                
+                                    <option value="six homogenization steps">six homogenization steps</option>
+                                
+                                    <option value="self-healing materials">self-healing materials</option>
+                                
+                                    <option value="various industries">various industries</option>
+                                
+                                    <option value="phenomenological mesoscopic internal variable approach">phenomenological mesoscopic internal variable approach</option>
+                                
+                                    <option value="mineralization pathways">mineralization pathways</option>
+                                
+                                    <option value="extruded hollow tubes (chts)">extruded hollow tubes (chts)</option>
+                                
+                                    <option value="lifespan">lifespan</option>
+                                
+                                    <option value="flexible piezoresistive pulse sensors">flexible piezoresistive pulse sensors</option>
+                                
+                                    <option value="0.7 kpa">0.7 kpa</option>
+                                
+                                    <option value="62.56 kpa-1">62.56 kpa-1</option>
+                                
+                                    <option value="hierarchical interlock structures found in shark skin">hierarchical interlock structures found in shark skin</option>
+                                
+                                    <option value="pedot:pss coating">pedot:pss coating</option>
+                                
+                                    <option value="27 mv n-1">27 mv n-1</option>
+                                
+                                    <option value="4.9 ms">4.9 ms</option>
+                                
+                                    <option value="pdms substrates">pdms substrates</option>
+                                
+                                    <option value="high-speed video camera">high-speed video camera</option>
+                                
+                                    <option value="scorpion sting penetration behavior">scorpion sting penetration behavior</option>
+                                
+                                    <option value="biaxial">biaxial</option>
+                                
+                                    <option value="stretching devices">stretching devices</option>
+                                
+                                    <option value="biological responses">biological responses</option>
+                                
+                                    <option value="flow mechanics">flow mechanics</option>
+                                
+                                    <option value="mechanical characterization">mechanical characterization</option>
+                                
+                                    <option value="bulk mechanical characterization">bulk mechanical characterization</option>
+                                
+                                    <option value="magnetic twisting cytometry (mtc)">magnetic twisting cytometry (mtc)</option>
+                                
+                                    <option value="pressure-controlled">pressure-controlled</option>
+                                
+                                    <option value="uniaxial">uniaxial</option>
+                                
+                                    <option value="strength tests">strength tests</option>
+                                
+                                    <option value="failure extension">failure extension</option>
+                                
+                                    <option value="brittle system">brittle system</option>
+                                
+                                    <option value="brittleness">brittleness</option>
+                                
+                                    <option value="brittle behavior">brittle behavior</option>
+                                
+                                    <option value="ductile system">ductile system</option>
+                                
+                                    <option value="fleine">fleine</option>
+                                
+                                    <option value="glue">glue</option>
+                                
+                                    <option value="collagen solution concentration">collagen solution concentration</option>
+                                
+                                    <option value="direct ink writing (diw)">direct ink writing (diw)</option>
+                                
+                                    <option value="hierarchical porous ceramics">hierarchical porous ceramics</option>
+                                
+                                    <option value="ceramic foam">ceramic foam</option>
+                                
+                                    <option value="colloidal inks">colloidal inks</option>
+                                
+                                    <option value="distinct microstructures">distinct microstructures</option>
+                                
+                                    <option value="distinct mechanical properties">distinct mechanical properties</option>
+                                
+                                    <option value="highly organized 3d woven matrices">highly organized 3d woven matrices</option>
+                                
+                                    <option value="soft outermost layer">soft outermost layer</option>
+                                
+                                    <option value="multi-layered shell">multi-layered shell</option>
+                                
+                                    <option value="proposed method">proposed method</option>
+                                
+                                    <option value="oil phase volume">oil phase volume</option>
+                                
+                                    <option value="interconnected macroporous structures">interconnected macroporous structures</option>
+                                
+                                    <option value="pore morphology">pore morphology</option>
+                                
+                                    <option value="pluronice f-127">pluronice f-127</option>
+                                
+                                    <option value="microporosity">microporosity</option>
+                                
+                                    <option value="viscoelastic alumina-stabilized emulsion inks">viscoelastic alumina-stabilized emulsion inks</option>
+                                
+                                    <option value="different micropore morphology">different micropore morphology</option>
+                                
+                                    <option value="emulsifying surfactant">emulsifying surfactant</option>
+                                
+                                    <option value="gel structure">gel structure</option>
+                                
+                                    <option value="additives">additives</option>
+                                
+                                    <option value="freezing temperatures">freezing temperatures</option>
+                                
+                                    <option value="slurry concentrations">slurry concentrations</option>
+                                
+                                    <option value="nanoporosity">nanoporosity</option>
+                                
+                                    <option value="vimentin_dimer">vimentin_dimer</option>
+                                
+                                    <option value="vimentin_tetramer">vimentin_tetramer</option>
+                                
+                                    <option value="carbohydrate components">carbohydrate components</option>
+                                
+                                    <option value="cell recognition">cell recognition</option>
+                                
+                                    <option value="protective barrier">protective barrier</option>
+                                
+                                    <option value="signaling">signaling</option>
+                                
+                                    <option value="polymorphs of calcium carbonate">polymorphs of calcium carbonate</option>
+                                
+                                    <option value="glycosidic bonds">glycosidic bonds</option>
+                                
+                                    <option value="sugars">sugars</option>
+                                
+                                    <option value="amino acid units">amino acid units</option>
+                                
+                                    <option value="van der waals bonds">van der waals bonds</option>
+                                
+                                    <option value="sodium metasilicate gels">sodium metasilicate gels</option>
+                                
+                                    <option value="compositional changes">compositional changes</option>
+                                
+                                    <option value="graphene carrier">graphene carrier</option>
+                                
+                                    <option value="bioelectronics">bioelectronics</option>
+                                
+                                    <option value="electronic properties">electronic properties</option>
+                                
+                                    <option value="amorphous calcium carbonate">amorphous calcium carbonate</option>
+                                
+                                    <option value="function">function</option>
+                                
+                                    <option value="cell structure and function">cell structure and function</option>
+                                
+                                    <option value="components of biosensors">components of biosensors</option>
+                                
+                                    <option value="dissoluble substrates">dissoluble substrates</option>
+                                
+                                    <option value="surface recognition">surface recognition</option>
+                                
+                                    <option value="proline">proline</option>
+                                
+                                    <option value="ridge height">ridge height</option>
+                                
+                                    <option value="ridge spacing">ridge spacing</option>
+                                
+                                    <option value="ridge thickness">ridge thickness</option>
+                                
+                                    <option value="octopus skin">octopus skin</option>
+                                
+                                    <option value="plant stems">plant stems</option>
+                                
+                                    <option value="amorphous silica glass">amorphous silica glass</option>
+                                
+                                    <option value="genetic material">genetic material</option>
+                                
+                                    <option value="calcium phosphate nanostructures">calcium phosphate nanostructures</option>
+                                
+                                    <option value="hydroxyapatite nanoparticles">hydroxyapatite nanoparticles</option>
+                                
+                                    <option value="aunps">aunps</option>
+                                
+                                    <option value="endoplasmic reticulum">endoplasmic reticulum</option>
+                                
+                                    <option value="protein folding">protein folding</option>
+                                
+                                    <option value="amorphous cellulose">amorphous cellulose</option>
+                                
+                                    <option value="extractives">extractives</option>
+                                
+                                    <option value="resins">resins</option>
+                                
+                                    <option value="etching">etching</option>
+                                
+                                    <option value="koh activation">koh activation</option>
+                                
+                                    <option value="coal">coal</option>
+                                
+                                    <option value="chemicals">chemicals</option>
+                                
+                                    <option value="electricity">electricity</option>
+                                
+                                    <option value="syngas">syngas</option>
+                                
+                                    <option value="oxygen">oxygen</option>
+                                
+                                    <option value="pyrolysis">pyrolysis</option>
+                                
+                                    <option value="steam">steam</option>
+                                
+                                    <option value="intercalation effects">intercalation effects</option>
+                                
+                                    <option value="coconut shells">coconut shells</option>
+                                
+                                    <option value="alternative geometries">alternative geometries</option>
+                                
+                                    <option value="computer-aided manufacturing (cam)">computer-aided manufacturing (cam)</option>
+                                
+                                    <option value="euclidean geometry">euclidean geometry</option>
+                                
+                                    <option value="fractal dimension">fractal dimension</option>
+                                
+                                    <option value="fractal dimension between 2 and 3">fractal dimension between 2 and 3</option>
+                                
+                                    <option value="fractal paths">fractal paths</option>
+                                
+                                    <option value="fractal surfaces">fractal surfaces</option>
+                                
+                                    <option value="nowhere differentiable">nowhere differentiable</option>
+                                
+                                    <option value="planar when viewed from a distance">planar when viewed from a distance</option>
+                                
+                                    <option value="dependence">dependence</option>
+                                
+                                    <option value="artificial wound fluid">artificial wound fluid</option>
+                                
+                                    <option value="synthetic blood">synthetic blood</option>
+                                
+                                    <option value="disordered regions">disordered regions</option>
+                                
+                                    <option value="cell adhesion capability">cell adhesion capability</option>
+                                
+                                    <option value="introduces cell recognition sites">introduces cell recognition sites</option>
+                                
+                                    <option value="nanoplate arrays">nanoplate arrays</option>
+                                
+                                    <option value="asv device">asv device</option>
+                                
+                                    <option value="biomarkers">biomarkers</option>
+                                
+                                    <option value="light">light</option>
+                                
+                                    <option value="on-skin fluids">on-skin fluids</option>
+                                
+                                    <option value="octopus">octopus</option>
+                                
+                                    <option value="unusual receptor">unusual receptor</option>
+                                
+                                    <option value="optical imaging techniques">optical imaging techniques</option>
+                                
+                                    <option value="radiant energy">radiant energy</option>
+                                
+                                    <option value="optical radiation">optical radiation</option>
+                                
+                                    <option value="cap coating">cap coating</option>
+                                
+                                    <option value="non-antibiotic organic compounds">non-antibiotic organic compounds</option>
+                                
+                                    <option value="antimicrobial hydrogels">antimicrobial hydrogels</option>
+                                
+                                    <option value="bisphosphonates">bisphosphonates</option>
+                                
+                                    <option value="physical coating techniques">physical coating techniques</option>
+                                
+                                    <option value="collagen-cap composites">collagen-cap composites</option>
+                                
+                                    <option value="composite coatings">composite coatings</option>
+                                
+                                    <option value="exogenous ecm">exogenous ecm</option>
+                                
+                                    <option value="growth factors and cytokines">growth factors and cytokines</option>
+                                
+                                    <option value="plasma spraying">plasma spraying</option>
+                                
+                                    <option value="radio frequency magnetron sputtering">radio frequency magnetron sputtering</option>
+                                
+                                    <option value="continuous transition">continuous transition</option>
+                                
+                                    <option value="engineered biomimetic composites">engineered biomimetic composites</option>
+                                
+                                    <option value="extracellular matrix remodeling">extracellular matrix remodeling</option>
+                                
+                                    <option value="rod-like structure">rod-like structure</option>
+                                
+                                    <option value="shorter lengths">shorter lengths</option>
+                                
+                                    <option value="widths">widths</option>
+                                
+                                    <option value="nematic liquid crystal order">nematic liquid crystal order</option>
+                                
+                                    <option value="shrimp shells">shrimp shells</option>
+                                
+                                    <option value="pan fiber mats">pan fiber mats</option>
+                                
+                                    <option value="pim-1 fiber mats">pim-1 fiber mats</option>
+                                
+                                    <option value="mesopore range">mesopore range</option>
+                                
+                                    <option value="nitrogen adsorption-desorption isotherms">nitrogen adsorption-desorption isotherms</option>
+                                
+                                    <option value="proper degassing">proper degassing</option>
+                                
+                                    <option value="hybrid materials based on pva and bioactive glass">hybrid materials based on pva and bioactive glass</option>
+                                
+                                    <option value="gas sorption capacity">gas sorption capacity</option>
+                                
+                                    <option value="pan fiber webs">pan fiber webs</option>
+                                
+                                    <option value="improved mechanical performance">improved mechanical performance</option>
+                                
+                                    <option value="structural stability">structural stability</option>
+                                
+                                    <option value="rotational speed">rotational speed</option>
+                                
+                                    <option value="drawing ratios">drawing ratios</option>
+                                
+                                    <option value="uio-66-nh2 metal-organic framework particles">uio-66-nh2 metal-organic framework particles</option>
+                                
+                                    <option value="synthetic calcite-based composite crystals">synthetic calcite-based composite crystals</option>
+                                
+                                    <option value="b-ha scaffold">b-ha scaffold</option>
+                                
+                                    <option value="damage-tolerant mechanical performance">damage-tolerant mechanical performance</option>
+                                
+                                    <option value="enhanced bone regeneration">enhanced bone regeneration</option>
+                                
+                                    <option value="enhanced vascular regeneration">enhanced vascular regeneration</option>
+                                
+                                    <option value="interconnected porous channels with large and small tubules">interconnected porous channels with large and small tubules</option>
+                                
+                                    <option value="gel fibers">gel fibers</option>
+                                
+                                    <option value="commercial instrument">commercial instrument</option>
+                                
+                                    <option value="constant stress">constant stress</option>
+                                
+                                    <option value="elastic deformation step">elastic deformation step</option>
+                                
+                                    <option value="kelvin-voigt model">kelvin-voigt model</option>
+                                
+                                    <option value="time-dependent deformation behavior">time-dependent deformation behavior</option>
+                                
+                                    <option value="cell-secreted matrix">cell-secreted matrix</option>
+                                
+                                    <option value="hydrolysis">hydrolysis</option>
+                                
+                                    <option value="proliferated cells">proliferated cells</option>
+                                
+                                    <option value="multi-cell thin-walled structures">multi-cell thin-walled structures</option>
+                                
+                                    <option value="conical structures">conical structures</option>
+                                
+                                    <option value="skin layer">skin layer</option>
+                                
+                                    <option value="external magnetic field">external magnetic field</option>
+                                
+                                    <option value="controlled localization">controlled localization</option>
+                                
+                                    <option value="magnetophoretic transport">magnetophoretic transport</option>
+                                
+                                    <option value="structural patterning">structural patterning</option>
+                                
+                                    <option value="magnetic pillar arrays">magnetic pillar arrays</option>
+                                
+                                    <option value="initial state">initial state</option>
+                                
+                                    <option value="high magnetization">high magnetization</option>
+                                
+                                    <option value="increased roughness">increased roughness</option>
+                                
+                                    <option value="nanocavities">nanocavities</option>
+                                
+                                    <option value="surface hierarchy">surface hierarchy</option>
+                                
+                                    <option value="nanowire-based constructs for bone regeneration">nanowire-based constructs for bone regeneration</option>
+                                
+                                    <option value="vertical sinws bound to a si substrate">vertical sinws bound to a si substrate</option>
+                                
+                                    <option value="lipus stimulation">lipus stimulation</option>
+                                
+                                    <option value="live/dead reagent">live/dead reagent</option>
+                                
+                                    <option value="hydrogel microgels">hydrogel microgels</option>
+                                
+                                    <option value="vmax kinetic elisa microplate reader">vmax kinetic elisa microplate reader</option>
+                                
+                                    <option value="cytotoxicity studies">cytotoxicity studies</option>
+                                
+                                    <option value="human mesenchymal stem cells (hmscs)">human mesenchymal stem cells (hmscs)</option>
+                                
+                                    <option value="2-d si chip">2-d si chip</option>
+                                
+                                    <option value="high cell density">high cell density</option>
+                                
+                                    <option value="biodegradable plga">biodegradable plga</option>
+                                
+                                    <option value="osteogenic lineage">osteogenic lineage</option>
+                                
+                                    <option value="kuo et al.">kuo et al.</option>
+                                
+                                    <option value="significant cytotoxicity">significant cytotoxicity</option>
+                                
+                                    <option value="spherical shaped cells">spherical shaped cells</option>
+                                
+                                    <option value="typical spindle morphology">typical spindle morphology</option>
+                                
+                                    <option value="alumina (al2o3)">alumina (al2o3)</option>
+                                
+                                    <option value="biofabrication (bf)">biofabrication (bf)</option>
+                                
+                                    <option value="post-processing">post-processing</option>
+                                
+                                    <option value="drying">drying</option>
+                                
+                                    <option value="precipitate">precipitate</option>
+                                
+                                    <option value="fumed silica (sio2)">fumed silica (sio2)</option>
+                                
+                                    <option value="household active yeast (saccharomyces cerevisiae)">household active yeast (saccharomyces cerevisiae)</option>
+                                
+                                    <option value="polymeric oxide nanoparticles">polymeric oxide nanoparticles</option>
+                                
+                                    <option value="silicon nitride (si3n4)">silicon nitride (si3n4)</option>
+                                
+                                    <option value="sintering">sintering</option>
+                                
+                                    <option value="ceramic green body">ceramic green body</option>
+                                
+                                    <option value="high temperatures">high temperatures</option>
+                                
+                                    <option value="thermal analysis">thermal analysis</option>
+                                
+                                    <option value="yttria (y2o3)">yttria (y2o3)</option>
+                                
+                                    <option value="central canal">central canal</option>
+                                
+                                    <option value="bonefatigue">bonefatigue</option>
+                                
+                                    <option value="long bones">long bones</option>
+                                
+                                    <option value="dense bone">dense bone</option>
+                                
+                                    <option value="arrangement and orientation">arrangement and orientation</option>
+                                
+                                    <option value="initial linear elastic region">initial linear elastic region</option>
+                                
+                                    <option value="nonlinear stress-strain response">nonlinear stress-strain response</option>
+                                
+                                    <option value="bone-resorbing cell">bone-resorbing cell</option>
+                                
+                                    <option value="marrow cavity">marrow cavity</option>
+                                
+                                    <option value="nanoscale bone material">nanoscale bone material</option>
+                                
+                                    <option value="collagen ground substance">collagen ground substance</option>
+                                
+                                    <option value="aligned osteoblasts">aligned osteoblasts</option>
+                                
+                                    <option value="mineralized matrix production">mineralized matrix production</option>
+                                
+                                    <option value="local densification">local densification</option>
+                                
+                                    <option value="chondrogenic differentiation">chondrogenic differentiation</option>
+                                
+                                    <option value="morphological properties">morphological properties</option>
+                                
+                                    <option value="collagen signaling">collagen signaling</option>
+                                
+                                    <option value="endosteal region">endosteal region</option>
+                                
+                                    <option value="medullary cavities">medullary cavities</option>
+                                
+                                    <option value="increased yield strength">increased yield strength</option>
+                                
+                                    <option value="reduced yield strength">reduced yield strength</option>
+                                
+                                    <option value="fracture strength">fracture strength</option>
+                                
+                                    <option value="compression behavior">compression behavior</option>
+                                
+                                    <option value="stress relaxation">stress relaxation</option>
+                                
+                                    <option value="collagenmolecule">collagenmolecule</option>
+                                
+                                    <option value="extrinsic toughening">extrinsic toughening</option>
+                                
+                                    <option value="fiber pull-out">fiber pull-out</option>
+                                
+                                    <option value="interlaminar sliding">interlaminar sliding</option>
+                                
+                                    <option value="shear tears">shear tears</option>
+                                
+                                    <option value="macrofibers">macrofibers</option>
+                                
+                                    <option value="isopod t. europeaus">isopod t. europeaus</option>
+                                
+                                    <option value="structural stiffness">structural stiffness</option>
+                                
+                                    <option value="pore canal tubes">pore canal tubes</option>
+                                
+                                    <option value="chitinfibers">chitinfibers</option>
+                                
+                                    <option value="elytra">elytra</option>
+                                
+                                    <option value="longitudinaldirection">longitudinaldirection</option>
+                                
+                                    <option value="outerlayer">outerlayer</option>
+                                
+                                    <option value="transversedirection">transversedirection</option>
+                                
+                                    <option value="compositional variations">compositional variations</option>
+                                
+                                    <option value="structural variations">structural variations</option>
+                                
+                                    <option value="crack blunting">crack blunting</option>
+                                
+                                    <option value="fiber rupture">fiber rupture</option>
+                                
+                                    <option value="diversion around neighboring tubercle pores">diversion around neighboring tubercle pores</option>
+                                
+                                    <option value="fiber behavior">fiber behavior</option>
+                                
+                                    <option value="defined twisted plywood structures">defined twisted plywood structures</option>
+                                
+                                    <option value="driest horse hoof wall samples">driest horse hoof wall samples</option>
+                                
+                                    <option value="785 nm">785 nm</option>
+                                
+                                    <option value="laser beam">laser beam</option>
+                                
+                                    <option value="bessy synchrotron source">bessy synchrotron source</option>
+                                
+                                    <option value="muspot beamline">muspot beamline</option>
+                                
+                                    <option value="saxs measurements">saxs measurements</option>
+                                
+                                    <option value="waxs measurements">waxs measurements</option>
+                                
+                                    <option value="complex materials">complex materials</option>
+                                
+                                    <option value="crystallographic analysis">crystallographic analysis</option>
+                                
+                                    <option value="resulting pattern">resulting pattern</option>
+                                
+                                    <option value="amorphous hump">amorphous hump</option>
+                                
+                                    <option value="amorphous state">amorphous state</option>
+                                
+                                    <option value="characteristic peak">characteristic peak</option>
+                                
+                                    <option value="crystalline mo">crystalline mo</option>
+                                
+                                    <option value="scan line spacing">scan line spacing</option>
+                                
+                                    <option value="time-resolved synchrotron saxs experiments">time-resolved synchrotron saxs experiments</option>
+                                
+                                    <option value="discontinuities patterns">discontinuities patterns</option>
+                                
+                                    <option value="discontinuities' presence">discontinuities' presence</option>
+                                
+                                    <option value="maximum strength">maximum strength</option>
+                                
+                                    <option value="notch sensitivity">notch sensitivity</option>
+                                
+                                    <option value="pseudo-plastic mechanisms">pseudo-plastic mechanisms</option>
+                                
+                                    <option value="strain at failure">strain at failure</option>
+                                
+                                    <option value="traditional composites">traditional composites</option>
+                                
+                                    <option value="high load resistance">high load resistance</option>
+                                
+                                    <option value="soluble hybrids">soluble hybrids</option>
+                                
+                                    <option value="environmental remediation">environmental remediation</option>
+                                
+                                    <option value="application">application</option>
+                                
+                                    <option value="enzymes">enzymes</option>
+                                
+                                    <option value="specific chemical reactions">specific chemical reactions</option>
+                                
+                                    <option value="fermentation">fermentation</option>
+                                
+                                    <option value="controlled modification">controlled modification</option>
+                                
+                                    <option value="semiconducting behavior">semiconducting behavior</option>
+                                
+                                    <option value="enhanced optical properties">enhanced optical properties</option>
+                                
+                                    <option value="potential industrial applications">potential industrial applications</option>
+                                
+                                    <option value="unique biological properties">unique biological properties</option>
+                                
+                                    <option value="in situ synthesis">in situ synthesis</option>
+                                
+                                    <option value="imogolite nanotubes">imogolite nanotubes</option>
+                                
+                                    <option value="organophosphonic acid groups">organophosphonic acid groups</option>
+                                
+                                    <option value="p-hema">p-hema</option>
+                                
+                                    <option value="pmma nanocomposites">pmma nanocomposites</option>
+                                
+                                    <option value="homogenous dispersion">homogenous dispersion</option>
+                                
+                                    <option value="stronger interfacial interaction">stronger interfacial interaction</option>
+                                
+                                    <option value="graphene nanosheets">graphene nanosheets</option>
+                                
+                                    <option value="nanotube dispersion and interfacial adhesion">nanotube dispersion and interfacial adhesion</option>
+                                
+                                    <option value="precise control">precise control</option>
+                                
+                                    <option value="uniform dispersal">uniform dispersal</option>
+                                
+                                    <option value="biomolecular self-assembly">biomolecular self-assembly</option>
+                                
+                                    <option value="precise design control strategies">precise design control strategies</option>
+                                
+                                    <option value="pva polymer matrices">pva polymer matrices</option>
+                                
+                                    <option value="adsorbents">adsorbents</option>
+                                
+                                    <option value="source material">source material</option>
+                                
+                                    <option value="phosphonic acid group">phosphonic acid group</option>
+                                
+                                    <option value="polymer grafting">polymer grafting</option>
+                                
+                                    <option value="spin-assembly">spin-assembly</option>
+                                
+                                    <option value="go-fibrinogen nf hybrid composites">go-fibrinogen nf hybrid composites</option>
+                                
+                                    <option value="chemically modified pdms surface">chemically modified pdms surface</option>
+                                
+                                    <option value="tga">tga</option>
+                                
+                                    <option value="multilayer alginate (mag)">multilayer alginate (mag)</option>
+                                
+                                    <option value="nc blend">nc blend</option>
+                                
+                                    <option value="nc materials">nc materials</option>
+                                
+                                    <option value="cellulose material">cellulose material</option>
+                                
+                                    <option value="cq-s3">cq-s3</option>
+                                
+                                    <option value="cellulose derivative">cellulose derivative</option>
+                                
+                                    <option value="thermal stability assessment">thermal stability assessment</option>
+                                
+                                    <option value="hydroxyapatite (hap) nanocomposites with silk fibroin (sf) and collagen nanofibrils (cnf)">hydroxyapatite (hap) nanocomposites with silk fibroin (sf) and collagen nanofibrils (cnf)</option>
+                                
+                                    <option value="self-assembly process">self-assembly process</option>
+                                
+                                    <option value="simplest possible model">simplest possible model</option>
+                                
+                                    <option value="simulation precision">simulation precision</option>
+                                
+                                    <option value="macromolecules">macromolecules</option>
+                                
+                                    <option value="actin-based materials">actin-based materials</option>
+                                
+                                    <option value="cross-linkers">cross-linkers</option>
+                                
+                                    <option value="massless springs">massless springs</option>
+                                
+                                    <option value="computational efficiency">computational efficiency</option>
+                                
+                                    <option value="explicit solvent">explicit solvent</option>
+                                
+                                    <option value="assembly process">assembly process</option>
+                                
+                                    <option value="cell deformation">cell deformation</option>
+                                
+                                    <option value="biological macromolecules">biological macromolecules</option>
+                                
+                                    <option value="chemical interaction">chemical interaction</option>
+                                
+                                    <option value="computational approaches">computational approaches</option>
+                                
+                                    <option value="conformational sampling">conformational sampling</option>
+                                
+                                    <option value="diseased states">diseased states</option>
+                                
+                                    <option value="effective gaussian model">effective gaussian model</option>
+                                
+                                    <option value="pathogenesis studies">pathogenesis studies</option>
+                                
+                                    <option value="physiological states">physiological states</option>
+                                
+                                    <option value="reliable results">reliable results</option>
+                                
+                                    <option value="variability in structure">variability in structure</option>
+                                
+                                    <option value="complex biological materials">complex biological materials</option>
+                                
+                                    <option value="energy absorption materials">energy absorption materials</option>
+                                
+                                    <option value="full length filaments">full length filaments</option>
+                                
+                                    <option value="self-assembled nanomaterials">self-assembled nanomaterials</option>
+                                
+                                    <option value="stimulus responsive gels">stimulus responsive gels</option>
+                                
+                                    <option value="unit length filaments">unit length filaments</option>
+                                
+                                    <option value="equilibrium lattice constant">equilibrium lattice constant</option>
+                                
+                                    <option value="lattice structure">lattice structure</option>
+                                
+                                    <option value="hap nanoplatelets">hap nanoplatelets</option>
+                                
+                                    <option value="full atomistic simulation results">full atomistic simulation results</option>
+                                
+                                    <option value="energy well depth">energy well depth</option>
+                                
+                                    <option value="minimum distance">minimum distance</option>
+                                
+                                    <option value="well depth">well depth</option>
+                                
+                                    <option value="sf and cnf beads">sf and cnf beads</option>
+                                
+                                    <option value="mesoscale modeling">mesoscale modeling</option>
+                                
+                                    <option value="model parameters">model parameters</option>
+                                
+                                    <option value="reax">reax</option>
+                                
+                                    <option value="creep behavior">creep behavior</option>
+                                
+                                    <option value="creep properties">creep properties</option>
+                                
+                                    <option value="creep resistance">creep resistance</option>
+                                
+                                    <option value="elevated temperature strength">elevated temperature strength</option>
+                                
+                                    <option value="failure critical value">failure critical value</option>
+                                
+                                    <option value="metal carbides">metal carbides</option>
+                                
+                                    <option value="silicides">silicides</option>
+                                
+                                    <option value="spallation">spallation</option>
+                                
+                                    <option value="spallation formation">spallation formation</option>
+                                
+                                    <option value="ticp/ti6al4v composites">ticp/ti6al4v composites</option>
+                                
+                                    <option value="continuous and dense oxide scales">continuous and dense oxide scales</option>
+                                
+                                    <option value="drastic decreases in steady-state creep rates">drastic decreases in steady-state creep rates</option>
+                                
+                                    <option value="homogeneous microstructure">homogeneous microstructure</option>
+                                
+                                    <option value="significantly enhanced creep resistance">significantly enhanced creep resistance</option>
+                                
+                                    <option value="macro-scale spallation">macro-scale spallation</option>
+                                
+                                    <option value="one-level network structure">one-level network structure</option>
+                                
+                                    <option value="improved creep resistance">improved creep resistance</option>
+                                
+                                    <option value="similar creep rates">similar creep rates</option>
+                                
+                                    <option value="three stress regions">three stress regions</option>
+                                
+                                    <option value="three stress regions and threshold stress">three stress regions and threshold stress</option>
+                                
+                                    <option value="threshold stress">threshold stress</option>
+                                
+                                    <option value="magnesium ions">magnesium ions</option>
+                                
+                                    <option value="surface charge">surface charge</option>
+                                
+                                    <option value="adsorption behavior">adsorption behavior</option>
+                                
+                                    <option value="changing alkoxide precursors">changing alkoxide precursors</option>
+                                
+                                    <option value="ct technique">ct technique</option>
+                                
+                                    <option value="condensation reaction">condensation reaction</option>
+                                
+                                    <option value="larger pores">larger pores</option>
+                                
+                                    <option value="ct imaging limitations">ct imaging limitations</option>
+                                
+                                    <option value="micron graphite">micron graphite</option>
+                                
+                                    <option value="nanographite">nanographite</option>
+                                
+                                    <option value="cartilage phase">cartilage phase</option>
+                                
+                                    <option value="critical number of hydrogen bonds">critical number of hydrogen bonds</option>
+                                
+                                    <option value="energy barrier">energy barrier</option>
+                                
+                                    <option value="unfolding">unfolding</option>
+                                
+                                    <option value="rigid rods">rigid rods</option>
+                                
+                                    <option value="mp">mp</option>
+                                
+                                    <option value="was used for characterization">was used for characterization</option>
+                                
+                                    <option value="compressiveforce">compressiveforce</option>
+                                
+                                    <option value="effectivecontactelasticmodulus">effectivecontactelasticmodulus</option>
+                                
+                                    <option value="effectiveradiusofcurvature">effectiveradiusofcurvature</option>
+                                
+                                    <option value="fea">fea</option>
+                                
+                                    <option value="structuralhierarchy">structuralhierarchy</option>
+                                
+                                    <option value="resilin">resilin</option>
+                                
+                                    <option value="healthy cells">healthy cells</option>
+                                
+                                    <option value="disappears">disappears</option>
+                                
+                                    <option value="instantaneous">instantaneous</option>
+                                
+                                    <option value="softness-elasticity ratio">softness-elasticity ratio</option>
+                                
+                                    <option value="force-strain curve">force-strain curve</option>
+                                
+                                    <option value="viscosity">viscosity</option>
+                                
+                                    <option value="80 micron diameter nozzle">80 micron diameter nozzle</option>
+                                
+                                    <option value="higher dry volume fractions">higher dry volume fractions</option>
+                                
+                                    <option value="lower dry volume fractions">lower dry volume fractions</option>
+                                
+                                    <option value="hybrid materials">hybrid materials</option>
+                                
+                                    <option value="dense, compact structures">dense, compact structures</option>
+                                
+                                    <option value="amyloid bundles">amyloid bundles</option>
+                                
+                                    <option value="amyloid plaques">amyloid plaques</option>
+                                
+                                    <option value="amyloid protofilaments">amyloid protofilaments</option>
+                                
+                                    <option value="cross-β architecture">cross-β architecture</option>
+                                
+                                    <option value="bio-inorganic hybrid materials">bio-inorganic hybrid materials</option>
+                                
+                                    <option value="charged graphene oxide">charged graphene oxide</option>
+                                
+                                    <option value="charged nanoparticles">charged nanoparticles</option>
+                                
+                                    <option value="luminescent platinum(n) complexes">luminescent platinum(n) complexes</option>
+                                
+                                    <option value="antibiotic encapsulation">antibiotic encapsulation</option>
+                                
+                                    <option value="controlled drug release">controlled drug release</option>
+                                
+                                    <option value="growth factor encapsulation">growth factor encapsulation</option>
+                                
+                                    <option value="mechanical property enhancement techniques">mechanical property enhancement techniques</option>
+                                
+                                    <option value="tissue adhesive properties enhancement">tissue adhesive properties enhancement</option>
+                                
+                                    <option value="natural biopolymer-based hydrogels">natural biopolymer-based hydrogels</option>
+                                
+                                    <option value="adhesives">adhesives</option>
+                                
+                                    <option value="sealants">sealants</option>
+                                
+                                    <option value="nanochitin cryogels">nanochitin cryogels</option>
+                                
+                                    <option value="multiple separate contacts">multiple separate contacts</option>
+                                
+                                    <option value="microsucker-inspired adhesives">microsucker-inspired adhesives</option>
+                                
+                                    <option value="graphene nanoplatelets (gnps)">graphene nanoplatelets (gnps)</option>
+                                
+                                    <option value="hot isostatic pressing (hip)">hot isostatic pressing (hip)</option>
+                                
+                                    <option value="hot pressing (hp)">hot pressing (hp)</option>
+                                
+                                    <option value="twins">twins</option>
+                                
+                                    <option value="spark plasma sintering (sps)">spark plasma sintering (sps)</option>
+                                
+                                    <option value="vacuum hot-pressure sintering (vhps)">vacuum hot-pressure sintering (vhps)</option>
+                                
+                                    <option value="toughening">toughening</option>
+                                
+                                    <option value="abalone shell">abalone shell</option>
+                                
+                                    <option value="parallel direction">parallel direction</option>
+                                
+                                    <option value="perpendicular direction">perpendicular direction</option>
+                                
+                                    <option value="river clam shell">river clam shell</option>
+                                
+                                    <option value="ratio">ratio</option>
+                                
+                                    <option value="giant clam shell">giant clam shell</option>
+                                
+                                    <option value="red abalone shell">red abalone shell</option>
+                                
+                                    <option value="crack propagation rate">crack propagation rate</option>
+                                
+                                    <option value="wood fibers">wood fibers</option>
+                                
+                                    <option value="ductile failure">ductile failure</option>
+                                
+                                    <option value="metals">metals</option>
+                                
+                                    <option value="reorganization">reorganization</option>
+                                
+                                    <option value="location">location</option>
+                                
+                                    <option value="position">position</option>
+                                
+                                    <option value="cortical bone (transverse direction)">cortical bone (transverse direction)</option>
+                                
+                                    <option value="elastic moduli (longitudinal direction)">elastic moduli (longitudinal direction)</option>
+                                
+                                    <option value="strength (longitudinal direction)">strength (longitudinal direction)</option>
+                                
+                                    <option value="cortical bone (longitudinal direction)">cortical bone (longitudinal direction)</option>
+                                
+                                    <option value="strength (transverse direction)">strength (transverse direction)</option>
+                                
+                                    <option value="femur">femur</option>
+                                
+                                    <option value="humerus">humerus</option>
+                                
+                                    <option value="lumbar spine">lumbar spine</option>
+                                
+                                    <option value="mandibles">mandibles</option>
+                                
+                                    <option value="estimated energy absorption">estimated energy absorption</option>
+                                
+                                    <option value="tibia">tibia</option>
+                                
+                                    <option value="laminate elastic modeling">laminate elastic modeling</option>
+                                
+                                    <option value="graphite-reinforced ha (ha-g)">graphite-reinforced ha (ha-g)</option>
+                                
+                                    <option value="controllable">controllable</option>
+                                
+                                    <option value="crystal fibers">crystal fibers</option>
+                                
+                                    <option value="fiber tortuosity">fiber tortuosity</option>
+                                
+                                    <option value="mineralized tissues">mineralized tissues</option>
+                                
+                                    <option value="(n)1po43- band">(n)1po43- band</option>
+                                
+                                    <option value="algae species">algae species</option>
+                                
+                                    <option value="fucose-containing sulfated polysaccharide matrices">fucose-containing sulfated polysaccharide matrices</option>
+                                
+                                    <option value="green algae">green algae</option>
+                                
+                                    <option value="mannan">mannan</option>
+                                
+                                    <option value="sulphated galactan polymer matrix">sulphated galactan polymer matrix</option>
+                                
+                                    <option value="xylan microfibers">xylan microfibers</option>
+                                
+                                    <option value="mechanical methods">mechanical methods</option>
+                                
+                                    <option value="diamond turning">diamond turning</option>
+                                
+                                    <option value="electrochemical machining">electrochemical machining</option>
+                                
+                                    <option value="focused ion beam milling">focused ion beam milling</option>
+                                
+                                    <option value="bulk defects">bulk defects</option>
+                                
+                                    <option value="sonication exfoliation">sonication exfoliation</option>
+                                
+                                    <option value="various surfaces">various surfaces</option>
+                                
+                                    <option value="friction reduction">friction reduction</option>
+                                
+                                    <option value="optical reflection and diffraction">optical reflection and diffraction</option>
+                                
+                                    <option value="precision glass molding">precision glass molding</option>
+                                
+                                    <option value="wear resistance">wear resistance</option>
+                                
+                                    <option value="semiconductors">semiconductors</option>
+                                
+                                    <option value="ultrafast lasers">ultrafast lasers</option>
+                                
+                                    <option value="electron beam lithography">electron beam lithography</option>
+                                
+                                    <option value="nanoimprint lithography">nanoimprint lithography</option>
+                                
+                                    <option value="dimensional stability">dimensional stability</option>
+                                
+                                    <option value="large deformation regime">large deformation regime</option>
+                                
+                                    <option value="loading rate">loading rate</option>
+                                
+                                    <option value="vimentin">vimentin</option>
+                                
+                                    <option value="coiled-coil domains">coiled-coil domains</option>
+                                
+                                    <option value="beta sheet">beta sheet</option>
+                                
+                                    <option value="explicit water">explicit water</option>
+                                
+                                    <option value="longer time-scales">longer time-scales</option>
+                                
+                                    <option value="contact segments">contact segments</option>
+                                
+                                    <option value="inner surface">inner surface</option>
+                                
+                                    <option value="outer surface">outer surface</option>
+                                
+                                    <option value="fiber bundles">fiber bundles</option>
+                                
+                                    <option value="head_to_tail_polymers">head_to_tail_polymers</option>
+                                
+                                    <option value="leg (hind)">leg (hind)</option>
+                                
+                                    <option value="intercrystalline space">intercrystalline space</option>
+                                
+                                    <option value="mori-tanaka scheme">mori-tanaka scheme</option>
+                                
+                                    <option value="micromechanical model">micromechanical model</option>
+                                
+                                    <option value="interstitial fluid">interstitial fluid</option>
+                                
+                                    <option value="least absolute shrinkage and selection operator (lasso)">least absolute shrinkage and selection operator (lasso)</option>
+                                
+                                    <option value="overfitting">overfitting</option>
+                                
+                                    <option value="relevant features">relevant features</option>
+                                
+                                    <option value="random forest (rf)">random forest (rf)</option>
+                                
+                                    <option value="accuracy">accuracy</option>
+                                
+                                    <option value="machine learning prediction">machine learning prediction</option>
+                                
+                                    <option value="derived elastic bounds">derived elastic bounds</option>
+                                
+                                    <option value="fea results">fea results</option>
+                                
+                                    <option value="position perturbation">position perturbation</option>
+                                
+                                    <option value="digital light processing">digital light processing</option>
+                                
+                                    <option value="protein-based elastomeric materials">protein-based elastomeric materials</option>
+                                
+                                    <option value="multi-layer woodpile scaffolds">multi-layer woodpile scaffolds</option>
+                                
+                                    <option value="cell compactness between strands">cell compactness between strands</option>
+                                
+                                    <option value="controllable synthesis">controllable synthesis</option>
+                                
+                                    <option value="controlled pore sizes">controlled pore sizes</option>
+                                
+                                    <option value="material extrusion">material extrusion</option>
+                                
+                                    <option value="mechanical properties and effectiveness">mechanical properties and effectiveness</option>
+                                
+                                    <option value="design-based collagen 3d scaffolds">design-based collagen 3d scaffolds</option>
+                                
+                                    <option value="dispensed scaffolds">dispensed scaffolds</option>
+                                
+                                    <option value="traditional dispensed scaffolds">traditional dispensed scaffolds</option>
+                                
+                                    <option value="real-time pcr analysis">real-time pcr analysis</option>
+                                
+                                    <option value="rh-bmp2">rh-bmp2</option>
+                                
+                                    <option value="ha/col-alginate collagen scaffolds">ha/col-alginate collagen scaffolds</option>
+                                
+                                    <option value="capillary density">capillary density</option>
+                                
+                                    <option value="granulation tissue formation">granulation tissue formation</option>
+                                
+                                    <option value="collagen microfibers">collagen microfibers</option>
+                                
+                                    <option value="metal frame">metal frame</option>
+                                
+                                    <option value="hierarchical biocomposites">hierarchical biocomposites</option>
+                                
+                                    <option value="polyamide nanofibers">polyamide nanofibers</option>
+                                
+                                    <option value="gpag nanofibers">gpag nanofibers</option>
+                                
+                                    <option value="soft tissue properties">soft tissue properties</option>
+                                
+                                    <option value="universal fabrication method">universal fabrication method</option>
+                                
+                                    <option value="biomimetic constructs">biomimetic constructs</option>
+                                
+                                    <option value="enhanced biological properties">enhanced biological properties</option>
+                                
+                                    <option value="certain molecules">certain molecules</option>
+                                
+                                    <option value="excellent chemical stability">excellent chemical stability</option>
+                                
+                                    <option value="selective permeability">selective permeability</option>
+                                
+                                    <option value="hinds et al.'s study">hinds et al.'s study</option>
+                                
+                                    <option value="molecularly imprinted polymer nanotube membranes">molecularly imprinted polymer nanotube membranes</option>
+                                
+                                    <option value="specific target molecule separation">specific target molecule separation</option>
+                                
+                                    <option value="target molecule recognition">target molecule recognition</option>
+                                
+                                    <option value="template synthesis method">template synthesis method</option>
+                                
+                                    <option value="study published in 2015">study published in 2015</option>
+                                
+                                    <option value="detachment mechanisms">detachment mechanisms</option>
+                                
+                                    <option value="in air">in air</option>
+                                
+                                    <option value="single polyurethane microcups">single polyurethane microcups</option>
+                                
+                                    <option value="underwater behavior">underwater behavior</option>
+                                
+                                    <option value="e-skin sensors">e-skin sensors</option>
+                                
+                                    <option value="nitca">nitca</option>
+                                
+                                    <option value="al">al</option>
+                                
+                                    <option value="cr">cr</option>
+                                
+                                    <option value="g">g</option>
+                                
+                                    <option value="is">is</option>
+                                
+                                    <option value="my">my</option>
+                                
+                                    <option value="sp">sp</option>
+                                
+                                    <option value="deviatoric plastic strain (εp)">deviatoric plastic strain (εp)</option>
+                                
+                                    <option value="tm">tm</option>
+                                
+                                    <option value="clustering coefficient">clustering coefficient</option>
+                                
+                                    <option value="antigenicity">antigenicity</option>
+                                
+                                    <option value="fiber length">fiber length</option>
+                                
+                                    <option value="interfacial adhesion">interfacial adhesion</option>
+                                
+                                    <option value="carp scales">carp scales</option>
+                                
+                                    <option value="hap supercell">hap supercell</option>
+                                
+                                    <option value="computational limitations">computational limitations</option>
+                                
+                                    <option value="failure stress">failure stress</option>
+                                
+                                    <option value="interfacial area">interfacial area</option>
+                                
+                                    <option value="organic-inorganic interfaces">organic-inorganic interfaces</option>
+                                
+                                    <option value="slab">slab</option>
+                                
+                                    <option value="stress tensor">stress tensor</option>
+                                
+                                    <option value="supercells">supercells</option>
+                                
+                                    <option value="virial stress measure">virial stress measure</option>
+                                
+                                    <option value="wt supercell">wt supercell</option>
+                                
+                                    <option value="real-time imaging">real-time imaging</option>
+                                
+                                    <option value="hcfms">hcfms</option>
+                                
+                                    <option value="trabecular bone tissue">trabecular bone tissue</option>
+                                
+                                    <option value="structural factors">structural factors</option>
+                                
+                                    <option value="deformation regimes">deformation regimes</option>
+                                
+                                    <option value="bio-inspired nanocomposites">bio-inspired nanocomposites</option>
+                                
+                                    <option value="constituent strength">constituent strength</option>
+                                
+                                    <option value="deformation mechanisms">deformation mechanisms</option>
+                                
+                                    <option value="design strategies">design strategies</option>
+                                
+                                    <option value="factors controlling brittleness or ductility">factors controlling brittleness or ductility</option>
+                                
+                                    <option value="matrix failure">matrix failure</option>
+                                
+                                    <option value="md simulations">md simulations</option>
+                                
+                                    <option value="platelet failure">platelet failure</option>
+                                
+                                    <option value="pull-out of platelets">pull-out of platelets</option>
+                                
+                                    <option value="source of plasticity and toughness">source of plasticity and toughness</option>
+                                
+                                    <option value="critical strain">critical strain</option>
+                                
+                                    <option value="continuous mechanical testing">continuous mechanical testing</option>
+                                
+                                    <option value="bell model">bell model</option>
+                                
+                                    <option value="four-point bending loading scenarios">four-point bending loading scenarios</option>
+                                
+                                    <option value="biomaterials for tissue engineering">biomaterials for tissue engineering</option>
+                                
+                                    <option value="nanofibrillation efficiency">nanofibrillation efficiency</option>
+                                
+                                    <option value="cellular property">cellular property</option>
+                                
+                                    <option value="cortical actin ring">cortical actin ring</option>
+                                
+                                    <option value="lf">lf</option>
+                                
+                                    <option value="hemicellulose content">hemicellulose content</option>
+                                
+                                    <option value="constitutive behavior">constitutive behavior</option>
+                                
+                                    <option value="impact-resistant polymer composite">impact-resistant polymer composite</option>
+                                
+                                    <option value="natural fibers">natural fibers</option>
+                                
+                                    <option value="aspect ratio">aspect ratio</option>
+                                
+                                    <option value="mineral plate thickness">mineral plate thickness</option>
+                                
+                                    <option value="simulation results">simulation results</option>
+                                
+                                    <option value="inclusions">inclusions</option>
+                                
+                                    <option value="continuous fiber-reinforced composites">continuous fiber-reinforced composites</option>
+                                
+                                    <option value="traditional laminate material properties">traditional laminate material properties</option>
+                                
+                                    <option value="unreinforced laminate material properties">unreinforced laminate material properties</option>
+                                
+                                    <option value="offset displacement">offset displacement</option>
+                                
+                                    <option value="cycling stability">cycling stability</option>
+                                
+                                    <option value="high capacity">high capacity</option>
+                                
+                                    <option value="setae tips">setae tips</option>
+                                
+                                    <option value="experimental tests (widely used term in materials science)">experimental tests (widely used term in materials science)</option>
+                                
+                                    <option value="hierarchical thin-walled structures (widely used term in materials science)">hierarchical thin-walled structures (widely used term in materials science)</option>
+                                
+                                    <option value="finite element analysis (widely used term in materials science)">finite element analysis (widely used term in materials science)</option>
+                                
+                                    <option value="damage resistance">damage resistance</option>
+                                
+                                    <option value="piezoelectric domains">piezoelectric domains</option>
+                                
+                                    <option value="explicit_structure">explicit_structure</option>
+                                
+                                    <option value="framework">framework</option>
+                                
+                                    <option value="implicit_structure">implicit_structure</option>
+                                
+                                    <option value="ligament_deformation">ligament_deformation</option>
+                                
+                                    <option value="complex deformation and failure mechanisms">complex deformation and failure mechanisms</option>
+                                
+                                    <option value="localized impulsive loading">localized impulsive loading</option>
+                                
+                                    <option value="continuum shell elements">continuum shell elements</option>
+                                
+                                    <option value="tie constraints">tie constraints</option>
+                                
+                                    <option value="voronoi diagram">voronoi diagram</option>
+                                
+                                    <option value="zero thickness cohesive elements">zero thickness cohesive elements</option>
+                                
+                                    <option value="collapse deformation patterns (widely used term in materials science)">collapse deformation patterns (widely used term in materials science)</option>
+                                
+                                    <option value="impact energy absorption (widely used term in materials science)">impact energy absorption (widely used term in materials science)</option>
+                                
+                                    <option value="load-carrying consistency (widely used term in materials science)">load-carrying consistency (widely used term in materials science)</option>
+                                
+                                    <option value="progressive collapse deformation (widely used term in materials science)">progressive collapse deformation (widely used term in materials science)</option>
+                                
+                                    <option value="structural crashworthiness (widely used term in materials science)">structural crashworthiness (widely used term in materials science)</option>
+                                
+                                    <option value="wall thickness-to-diameter ratio (widely used term in materials science)">wall thickness-to-diameter ratio (widely used term in materials science)</option>
+                                
+                                    <option value="material (widely used term in materials science)">material (widely used term in materials science)</option>
+                                
+                                    <option value="constitutive framework">constitutive framework</option>
+                                
+                                    <option value="damage modeling">damage modeling</option>
+                                
+                                    <option value="distinct material parameters">distinct material parameters</option>
+                                
+                                    <option value="mineral fibers">mineral fibers</option>
+                                
+                                    <option value="biomimetism">biomimetism</option>
+                                
+                                    <option value="complex hierarchical nanostructure">complex hierarchical nanostructure</option>
+                                
+                                    <option value="high tensile strength">high tensile strength</option>
+                                
+                                    <option value="sustainable production methods">sustainable production methods</option>
+                                
+                                    <option value="gliadin fractions">gliadin fractions</option>
+                                
+                                    <option value="wheat gluten (wg) powder">wheat gluten (wg) powder</option>
+                                
+                                    <option value="glutenin fractions">glutenin fractions</option>
+                                
+                                    <option value="pellet">pellet</option>
+                                
+                                    <option value="compression molding">compression molding</option>
+                                
+                                    <option value="water-in-oil microemulsions">water-in-oil microemulsions</option>
+                                
+                                    <option value="dma">dma</option>
+                                
+                                    <option value="materials behavior">materials behavior</option>
+                                
+                                    <option value="static tensile tests">static tensile tests</option>
+                                
+                                    <option value="scaffold structure">scaffold structure</option>
+                                
+                                    <option value="nanofiber thermal behavior">nanofiber thermal behavior</option>
+                                
+                                    <option value="thermograms">thermograms</option>
+                                
+                                    <option value="pmma domains">pmma domains</option>
+                                
+                                    <option value="saxs">saxs</option>
+                                
+                                    <option value="small-angle x-ray scattering spectra">small-angle x-ray scattering spectra</option>
+                                
+                                    <option value="local fine-scale changes in microstructure">local fine-scale changes in microstructure</option>
+                                
+                                    <option value="bell theory">bell theory</option>
+                                
+                                    <option value="energy landscapes">energy landscapes</option>
+                                
+                                    <option value="kramer's diffusion model">kramer's diffusion model</option>
+                                
+                                    <option value="reaction coordinate">reaction coordinate</option>
+                                
+                                    <option value="insect hairs">insect hairs</option>
+                                
+                                    <option value="insect setae">insect setae</option>
+                                
+                                    <option value="ctab">ctab</option>
+                                
+                                    <option value="fracture microstructure">fracture microstructure</option>
+                                
+                                    <option value="other armor materials">other armor materials</option>
+                                
+                                    <option value="penetration loading">penetration loading</option>
+                                
+                                    <option value="density functional theory">density functional theory</option>
+                                
+                                    <option value="electron transfer mechanism analysis">electron transfer mechanism analysis</option>
+                                
+                                    <option value="basis set">basis set</option>
+                                
+                                    <option value="collaborative research">collaborative research</option>
+                                
+                                    <option value="computational expense">computational expense</option>
+                                
+                                    <option value="exchange-correlation functional">exchange-correlation functional</option>
+                                
+                                    <option value="material properties prediction">material properties prediction</option>
+                                
+                                    <option value="effect on teng output performance">effect on teng output performance</option>
+                                
+                                    <option value="hygroscopicity">hygroscopicity</option>
+                                
+                                    <option value="recovery speed">recovery speed</option>
+                                
+                                    <option value="rotating speed">rotating speed</option>
+                                
+                                    <option value="adhesion force">adhesion force</option>
+                                
+                                    <option value="moisture">moisture</option>
+                                
+                                    <option value="influence">influence</option>
+                                
+                                    <option value="complexhierarchicalonetothreedimensionalarchitectures">complexhierarchicalonetothreedimensionalarchitectures</option>
+                                
+                                    <option value="biomechanical performance">biomechanical performance</option>
+                                
+                                    <option value="osseointegration enhancement">osseointegration enhancement</option>
+                                
+                                    <option value="improved recovery with antibiotics">improved recovery with antibiotics</option>
+                                
+                                    <option value="tomographical mapping">tomographical mapping</option>
+                                
+                                    <option value="gasoline">gasoline</option>
+                                
+                                    <option value="liquid paraffin">liquid paraffin</option>
+                                
+                                    <option value="oil droplets">oil droplets</option>
+                                
+                                    <option value="soybean oil">soybean oil</option>
+                                
+                                    <option value="complexarrangement">complexarrangement</option>
+                                
+                                    <option value="individualcomponents">individualcomponents</option>
+                                
+                                    <option value="3d array">3d array</option>
+                                
+                                    <option value="in-growth mechanism">in-growth mechanism</option>
+                                
+                                    <option value="mechanical metamaterials">mechanical metamaterials</option>
+                                
+                                    <option value="older bone tissue">older bone tissue</option>
+                                
+                                    <option value="rehydrated bone tissue">rehydrated bone tissue</option>
+                                
+                                    <option value="crack diversion">crack diversion</option>
+                                
+                                    <option value="new surface areas">new surface areas</option>
+                                
+                                    <option value="chain length">chain length</option>
+                                
+                                    <option value="bending moments">bending moments</option>
+                                
+                                    <option value="sliding keratin scales">sliding keratin scales</option>
+                                
+                                    <option value="helical hierarchical structure">helical hierarchical structure</option>
+                                
+                                    <option value="staggered composites">staggered composites</option>
+                                
+                                    <option value="rhombic dodecahedron">rhombic dodecahedron</option>
+                                
+                                    <option value="neighboring unit cells">neighboring unit cells</option>
+                                
+                                    <option value="octahedra">octahedra</option>
+                                
+                                    <option value="strain energy per unit volume ratio">strain energy per unit volume ratio</option>
+                                
+                                    <option value="superior energy dissipation">superior energy dissipation</option>
+                                
+                                    <option value="berkovich diamond probe">berkovich diamond probe</option>
+                                
+                                    <option value="fused silica">fused silica</option>
+                                
+                                    <option value="oliver-pharr method">oliver-pharr method</option>
+                                
+                                    <option value="axial compression experiment">axial compression experiment</option>
+                                
+                                    <option value="k">k</option>
+                                
+                                    <option value="bcc lattice structure">bcc lattice structure</option>
+                                
+                                    <option value="circ lattice structure">circ lattice structure</option>
+                                
+                                    <option value="lattice structure (hcirc)">lattice structure (hcirc)</option>
+                                
+                                    <option value="relative density">relative density</option>
+                                
+                                    <option value="rod diameter value">rod diameter value</option>
+                                
+                                    <option value="specific stiffness">specific stiffness</option>
+                                
+                                    <option value="kinetic energy">kinetic energy</option>
+                                
+                                    <option value="internal energy">internal energy</option>
+                                
+                                    <option value="actual density">actual density</option>
+                                
+                                    <option value="c3d4 element type">c3d4 element type</option>
+                                
+                                    <option value="elastic-plastic constitutive behavior">elastic-plastic constitutive behavior</option>
+                                
+                                    <option value="r3d4 element type">r3d4 element type</option>
+                                
+                                    <option value="damping coefficient">damping coefficient</option>
+                                
+                                    <option value="energy dissipated during first impact cycle">energy dissipated during first impact cycle</option>
+                                
+                                    <option value="rotational stiffness">rotational stiffness</option>
+                                
+                                    <option value="v_in">v_in</option>
+                                
+                                    <option value="v_out">v_out</option>
+                                
+                                    <option value="x{cl}">x{cl}</option>
+                                
+                                    <option value="x{max}">x{max}</option>
+                                
+                                    <option value="x{r}">x{r}</option>
+                                
+                                    <option value="j">j</option>
+                                
+                                    <option value="l">l</option>
+                                
+                                    <option value="(x)">(x)</option>
+                                
+                                    <option value="z">z</option>
+                                
+                                    <option value="anisotropic">anisotropic</option>
+                                
+                                    <option value="n">n</option>
+                                
+                                    <option value="hierarchical lattice structures">hierarchical lattice structures</option>
+                                
+                                    <option value="optimization framework">optimization framework</option>
+                                
+                                    <option value="effective viscosity">effective viscosity</option>
+                                
+                                    <option value="lower bound">lower bound</option>
+                                
+                                    <option value="upper bound">upper bound</option>
+                                
+                                    <option value="increased shear strength">increased shear strength</option>
+                                
+                                    <option value="reduced shear strength">reduced shear strength</option>
+                                
+                                    <option value="bionic leaf">bionic leaf</option>
+                                
+                                    <option value="pla stripes">pla stripes</option>
+                                
+                                    <option value="small network structures">small network structures</option>
+                                
+                                    <option value="solidworks modeling software">solidworks modeling software</option>
+                                
+                                    <option value="distance">distance</option>
+                                
+                                    <option value="lennard-jones interactions">lennard-jones interactions</option>
+                                
+                                    <option value="parallel lines">parallel lines</option>
+                                
+                                    <option value="main vein structure">main vein structure</option>
+                                
+                                    <option value="main vein">main vein</option>
+                                
+                                    <option value="gripping function">gripping function</option>
+                                
+                                    <option value="printing conditions">printing conditions</option>
+                                
+                                    <option value="final product">final product</option>
+                                
+                                    <option value="slicing">slicing</option>
+                                
+                                    <option value="cad models">cad models</option>
+                                
+                                    <option value="50 nm">50 nm</option>
+                                
+                                    <option value="biomaterials science">biomaterials science</option>
+                                
+                                    <option value="hardware and software tools">hardware and software tools</option>
+                                
+                                    <option value="online repositories and user-group meetings">online repositories and user-group meetings</option>
+                                
+                                    <option value="topology optimization">topology optimization</option>
+                                
+                                    <option value="biological science">biological science</option>
+                                
+                                    <option value="fragile or wet materials">fragile or wet materials</option>
+                                
+                                    <option value="industrial application">industrial application</option>
+                                
+                                    <option value="non-destructive">non-destructive</option>
+                                
+                                    <option value="quantitative analytical tool">quantitative analytical tool</option>
+                                
+                                    <option value="virtual slice images">virtual slice images</option>
+                                
+                                    <option value="deformability">deformability</option>
+                                
+                                    <option value="dental implants">dental implants</option>
+                                
+                                    <option value="spinal implants">spinal implants</option>
+                                
+                                    <option value="complications">complications</option>
+                                
+                                    <option value="air curing environment">air curing environment</option>
+                                
+                                    <option value="concrete structure repairs">concrete structure repairs</option>
+                                
+                                    <option value="moist curing environment">moist curing environment</option>
+                                
+                                    <option value="hydrophobic coating (comparison)">hydrophobic coating (comparison)</option>
+                                
+                                    <option value="hydrophobic coating (immersion)">hydrophobic coating (immersion)</option>
+                                
+                                    <option value="pve resin coating">pve resin coating</option>
+                                
+                                    <option value="sodium silicate">sodium silicate</option>
+                                
+                                    <option value="wax">wax</option>
+                                
+                                    <option value="concrete applications">concrete applications</option>
+                                
+                                    <option value="self-healing concrete systems">self-healing concrete systems</option>
+                                
+                                    <option value="sealing">sealing</option>
+                                
+                                    <option value="failure criterion">failure criterion</option>
+                                
+                                    <option value="maximum principal stress">maximum principal stress</option>
+                                
+                                    <option value="cortical tissue">cortical tissue</option>
+                                
+                                    <option value="dsc therm">dsc therm</option>
+                                
+                                    <option value="equilibrium swelling">equilibrium swelling</option>
+                                
+                                    <option value="macroscopic gel swelling">macroscopic gel swelling</option>
+                                
+                                    <option value="milliq water">milliq water</option>
+                                
+                                    <option value="osmotic effects">osmotic effects</option>
+                                
+                                    <option value="carbodiimide crosslinking">carbodiimide crosslinking</option>
+                                
+                                    <option value="endogenous recruitment">endogenous recruitment</option>
+                                
+                                    <option value="native cornea">native cornea</option>
+                                
+                                    <option value="optical clarity">optical clarity</option>
+                                
+                                    <option value="regeneration of corneal tissue and nerves">regeneration of corneal tissue and nerves</option>
+                                
+                                    <option value="rejection episode">rejection episode</option>
+                                
+                                    <option value="surgical handling">surgical handling</option>
+                                
+                                    <option value="recombinant collagen">recombinant collagen</option>
+                                
+                                    <option value="fullows">fullows</option>
+                                
+                                    <option value="stripes">stripes</option>
+                                
+                                    <option value="arc">arc</option>
+                                
+                                    <option value="critical crack length">critical crack length</option>
+                                
+                                    <option value="topography">topography</option>
+                                
+                                    <option value="minitubular structures">minitubular structures</option>
+                                
+                                    <option value="cross-linking sites">cross-linking sites</option>
+                                
+                                    <option value="31helices">31helices</option>
+                                
+                                    <option value="betaturns">betaturns</option>
+                                
+                                    <option value="microscopic cell structure">microscopic cell structure</option>
+                                
+                                    <option value="printing accuracy">printing accuracy</option>
+                                
+                                    <option value="small average cell sizes">small average cell sizes</option>
+                                
+                                    <option value="aerospace engineering applications">aerospace engineering applications</option>
+                                
+                                    <option value="electrical application">electrical application</option>
+                                
+                                    <option value="electronic application">electronic application</option>
+                                
+                                    <option value="energy storage capacity">energy storage capacity</option>
+                                
+                                    <option value="ion transport performance">ion transport performance</option>
+                                
+                                    <option value="long printing time">long printing time</option>
+                                
+                                    <option value="low gas diffusivity">low gas diffusivity</option>
+                                
+                                    <option value="manufacturing methods">manufacturing methods</option>
+                                
+                                    <option value="conductivity exponent">conductivity exponent</option>
+                                
+                                    <option value="critical concentration">critical concentration</option>
+                                
+                                    <option value="filler volume fraction">filler volume fraction</option>
+                                
+                                    <option value="scaling factor">scaling factor</option>
+                                
+                                    <option value="content of conductive materials">content of conductive materials</option>
+                                
+                                    <option value="efficient nutrient transport">efficient nutrient transport</option>
+                                
+                                    <option value="petiole region">petiole region</option>
+                                
+                                    <option value="secondary and tertiary veins">secondary and tertiary veins</option>
+                                
+                                    <option value="co_s,s nanoparticles">co_s,s nanoparticles</option>
+                                
+                                    <option value="four-point probe method">four-point probe method</option>
+                                
+                                    <option value="cnt network">cnt network</option>
+                                
+                                    <option value="excessive cnts">excessive cnts</option>
+                                
+                                    <option value="poor conductivity">poor conductivity</option>
+                                
+                                    <option value="gf">gf</option>
+                                
+                                    <option value="resistance changes">resistance changes</option>
+                                
+                                    <option value="chemical vapor deposition">chemical vapor deposition</option>
+                                
+                                    <option value="dielectric layer">dielectric layer</option>
+                                
+                                    <option value="conductive layer">conductive layer</option>
+                                
+                                    <option value="evaporation">evaporation</option>
+                                
+                                    <option value="graphene layer">graphene layer</option>
+                                
+                                    <option value="inkjet printing technology">inkjet printing technology</option>
+                                
+                                    <option value="metal layer">metal layer</option>
+                                
+                                    <option value="sputtering">sputtering</option>
+                                
+                                    <option value="spin-coating">spin-coating</option>
+                                
+                                    <option value="atmp-pva hydrogels">atmp-pva hydrogels</option>
+                                
+                                    <option value="maximum force output">maximum force output</option>
+                                
+                                    <option value="minimum friction">minimum friction</option>
+                                
+                                    <option value="multilayered structure">multilayered structure</option>
+                                
+                                    <option value="cuticle structure">cuticle structure</option>
+                                
+                                    <option value="loosely attached layers">loosely attached layers</option>
+                                
+                                    <option value="larger output forces">larger output forces</option>
+                                
+                                    <option value="self-assembly strategies">self-assembly strategies</option>
+                                
+                                    <option value="vacuum deposition">vacuum deposition</option>
+                                
+                                    <option value="wet chemistry">wet chemistry</option>
+                                
+                                    <option value="functional properties">functional properties</option>
+                                
+                                    <option value="structural features">structural features</option>
+                                
+                                    <option value="linear fitting">linear fitting</option>
+                                
+                                    <option value="mass">mass</option>
+                                
+                                    <option value="super-structures">super-structures</option>
+                                
+                                    <option value="alpha-helical protein building block">alpha-helical protein building block</option>
+                                
+                                    <option value="carbon nanomaterials">carbon nanomaterials</option>
+                                
+                                    <option value="biopolymer matrices">biopolymer matrices</option>
+                                
+                                    <option value="aggregate breakdown">aggregate breakdown</option>
+                                
+                                    <option value="entanglement-disentanglement">entanglement-disentanglement</option>
+                                
+                                    <option value="high transparency">high transparency</option>
+                                
+                                    <option value="self-cleaning surfaces">self-cleaning surfaces</option>
+                                
+                                    <option value="practical applications">practical applications</option>
+                                
+                                    <option value="insect-inspired materials">insect-inspired materials</option>
+                                
+                                    <option value="lotus effect">lotus effect</option>
+                                
+                                    <option value="nipple arrays">nipple arrays</option>
+                                
+                                    <option value="super-hydrophobicity">super-hydrophobicity</option>
+                                
+                                    <option value="flexible electrode">flexible electrode</option>
+                                
+                                    <option value="angle bending force constants">angle bending force constants</option>
+                                
+                                    <option value="bond stretching force constants">bond stretching force constants</option>
+                                
+                                    <option value="dihedral angle twisting force constants">dihedral angle twisting force constants</option>
+                                
+                                    <option value="improper torsion angle distortion force constants">improper torsion angle distortion force constants</option>
+                                
+                                    <option value="urey-bradley force constants">urey-bradley force constants</option>
+                                
+                                    <option value="coulomb interactions">coulomb interactions</option>
+                                
+                                    <option value="effective dielectric constant">effective dielectric constant</option>
+                                
+                                    <option value="partial atomic charge">partial atomic charge</option>
+                                
+                                    <option value="cannot describe transition state energies during covalent bond formation and rupture">cannot describe transition state energies during covalent bond formation and rupture</option>
+                                
+                                    <option value="bond orders">bond orders</option>
+                                
+                                    <option value="cfo">cfo</option>
+                                
+                                    <option value="mwm">mwm</option>
+                                
+                                    <option value="tp">tp</option>
+                                
+                                    <option value="height of highest peak">height of highest peak</option>
+                                
+                                    <option value="sp(2)">sp(2)</option>
+                                
+                                    <option value="sp(3)">sp(3)</option>
+                                
+                                    <option value="interatomic distance">interatomic distance</option>
+                                
+                                    <option value="partial atomic charges">partial atomic charges</option>
+                                
+                                    <option value="magnesium hydroxide">magnesium hydroxide</option>
+                                
+                                    <option value="crosslinking agent">crosslinking agent</option>
+                                
+                                    <option value="ionic bonding">ionic bonding</option>
+                                
+                                    <option value="π-π interaction">π-π interaction</option>
+                                
+                                    <option value="collagen biological safety">collagen biological safety</option>
+                                
+                                    <option value="collagen self-assembly">collagen self-assembly</option>
+                                
+                                    <option value="collagen self-assembly incubation conditions">collagen self-assembly incubation conditions</option>
+                                
+                                    <option value="collagen toxicity">collagen toxicity</option>
+                                
+                                    <option value="nsc matrix">nsc matrix</option>
+                                
+                                    <option value="dramatically_enhance">dramatically_enhance</option>
+                                
+                                    <option value="freezing_front">freezing_front</option>
+                                
+                                    <option value="large_ice_crystals">large_ice_crystals</option>
+                                
+                                    <option value="pva_hydrogel">pva_hydrogel</option>
+                                
+                                    <option value="strong_hydrogen_bonding">strong_hydrogen_bonding</option>
+                                
+                                    <option value="well_dispersed">well_dispersed</option>
+                                
+                                    <option value="ag@agnps (silver nanoparticles coated with silver)">ag@agnps (silver nanoparticles coated with silver)</option>
+                                
+                                    <option value="agnps (silver nanoparticles)">agnps (silver nanoparticles)</option>
+                                
+                                    <option value="agnps@cnts (silver nanoparticles attached to carbon nanotubes)">agnps@cnts (silver nanoparticles attached to carbon nanotubes)</option>
+                                
+                                    <option value="poor dispersion">poor dispersion</option>
+                                
+                                    <option value="highly dispersed state">highly dispersed state</option>
+                                
+                                    <option value="an aqueous solution of h2so4">an aqueous solution of h2so4</option>
+                                
+                                    <option value="foreign atom content">foreign atom content</option>
+                                
+                                    <option value="good cyclability">good cyclability</option>
+                                
+                                    <option value="high specific capacitance">high specific capacitance</option>
+                                
+                                    <option value="libs">libs</option>
+                                
+                                    <option value="nibs">nibs</option>
+                                
+                                    <option value="mechanical sensors">mechanical sensors</option>
+                                
+                                    <option value="high-pressure sensors">high-pressure sensors</option>
+                                
+                                    <option value="alkali metal ion batteries">alkali metal ion batteries</option>
+                                
+                                    <option value="alkali metal ions">alkali metal ions</option>
+                                
+                                    <option value="biomorphic carbon">biomorphic carbon</option>
+                                
+                                    <option value="graphitization degree">graphitization degree</option>
+                                
+                                    <option value="heteroatom doping">heteroatom doping</option>
+                                
+                                    <option value="higher temperatures">higher temperatures</option>
+                                
+                                    <option value="ion intercalation">ion intercalation</option>
+                                
+                                    <option value="msnps">msnps</option>
+                                
+                                    <option value="ncf">ncf</option>
+                                
+                                    <option value="surface adsorption">surface adsorption</option>
+                                
+                                    <option value="surface functional groups">surface functional groups</option>
+                                
+                                    <option value="zns">zns</option>
+                                
+                                    <option value="addresses limitation of metal fillers' oxidation stability over long-term usage">addresses limitation of metal fillers' oxidation stability over long-term usage</option>
+                                
+                                    <option value="high surface area and electrical conductivity">high surface area and electrical conductivity</option>
+                                
+                                    <option value="smps">smps</option>
+                                
+                                    <option value="excellent electrical contact">excellent electrical contact</option>
+                                
+                                    <option value="foam-like behavior">foam-like behavior</option>
+                                
+                                    <option value="load release">load release</option>
+                                
+                                    <option value="zigzag buckles">zigzag buckles</option>
+                                
+                                    <option value="cds quantum dots">cds quantum dots</option>
+                                
+                                    <option value="inconel 600 catalyst">inconel 600 catalyst</option>
+                                
+                                    <option value="polydimethylsiloxane (pdms)">polydimethylsiloxane (pdms)</option>
+                                
+                                    <option value="dip-coating procedure">dip-coating procedure</option>
+                                
+                                    <option value="piezoresistive sensor">piezoresistive sensor</option>
+                                
+                                    <option value="enhancement">enhancement</option>
+                                
+                                    <option value="antiparallel alignment">antiparallel alignment</option>
+                                
+                                    <option value="lateral packing">lateral packing</option>
+                                
+                                    <option value="optical axis">optical axis</option>
+                                
+                                    <option value="osteogenesis-related genes">osteogenesis-related genes</option>
+                                
+                                    <option value="rbmscs">rbmscs</option>
+                                
+                                    <option value="5 wt% solution">5 wt% solution</option>
+                                
+                                    <option value="naoh solution">naoh solution</option>
+                                
+                                    <option value="product">product</option>
+                                
+                                    <option value="sodium carbonate anhydrous">sodium carbonate anhydrous</option>
+                                
+                                    <option value="succinic anhydride">succinic anhydride</option>
+                                
+                                    <option value="unreacted chitosan">unreacted chitosan</option>
+                                
+                                    <option value="hydrothermal treatment">hydrothermal treatment</option>
+                                
+                                    <option value="no references">no references</option>
+                                
+                                    <option value="goal">goal</option>
+                                
+                                    <option value="adhesive failure">adhesive failure</option>
+                                
+                                    <option value="failure mode">failure mode</option>
+                                
+                                    <option value="advanced manufacturing capabilities">advanced manufacturing capabilities</option>
+                                
+                                    <option value="cohesive failure">cohesive failure</option>
+                                
+                                    <option value="adhesion toughness">adhesion toughness</option>
+                                
+                                    <option value="nontoxicity">nontoxicity</option>
+                                
+                                    <option value="tissue-matching stiffness">tissue-matching stiffness</option>
+                                
+                                    <option value="multiple materials compatibility">multiple materials compatibility</option>
+                                
+                                    <option value="salting out">salting out</option>
+                                
+                                    <option value="sensitive to temperature">sensitive to temperature</option>
+                                
+                                    <option value="slow diffusion rates">slow diffusion rates</option>
+                                
+                                    <option value="swelling in water">swelling in water</option>
+                                
+                                    <option value="go-based materials">go-based materials</option>
+                                
+                                    <option value="quasibrittle materials">quasibrittle materials</option>
+                                
+                                    <option value="short fiber films">short fiber films</option>
+                                
+                                    <option value="scaffold's degradation or leaching products">scaffold's degradation or leaching products</option>
+                                
+                                    <option value="host matrix (renamed to aligned polymer matrix)">host matrix (renamed to aligned polymer matrix)</option>
+                                
+                                    <option value="large-scale composites with well-defined structural features and toughening mechanisms at length scales comparable to biological composites like bone (renamed to high-performance composites)">large-scale composites with well-defined structural features and toughening mechanisms at length scales comparable to biological composites like bone (renamed to high-performance composites)</option>
+                                
+                                    <option value="bone-like apatite (renamed to calcium phosphate)">bone-like apatite (renamed to calcium phosphate)</option>
+                                
+                                    <option value="composite materials (renamed to high-performance composites)">composite materials (renamed to high-performance composites)</option>
+                                
+                                    <option value="teeth">teeth</option>
+                                
+                                    <option value="mechanical control (renamed to precise control over mechanics in specific directions and regions)">mechanical control (renamed to precise control over mechanics in specific directions and regions)</option>
+                                
+                                    <option value="3d printing (3dp)">3d printing (3dp)</option>
+                                
+                                    <option value="biphasic scaffolds">biphasic scaffolds</option>
+                                
+                                    <option value="computer-aided design (cad)">computer-aided design (cad)</option>
+                                
+                                    <option value="computer aided engineering (cae)">computer aided engineering (cae)</option>
+                                
+                                    <option value="customizable am">customizable am</option>
+                                
+                                    <option value="hybrid scaffolds">hybrid scaffolds</option>
+                                
+                                    <option value="material jetting">material jetting</option>
+                                
+                                    <option value="cartilage regeneration">cartilage regeneration</option>
+                                
+                                    <option value="critical-size defects">critical-size defects</option>
+                                
+                                    <option value="dorsum subcutaneously">dorsum subcutaneously</option>
+                                
+                                    <option value="evaluation">evaluation</option>
+                                
+                                    <option value="fibrin">fibrin</option>
+                                
+                                    <option value="goat femoral head articular cartilage">goat femoral head articular cartilage</option>
+                                
+                                    <option value="goat proximal femoral condyle">goat proximal femoral condyle</option>
+                                
+                                    <option value="ha">ha</option>
+                                
+                                    <option value="micro ct analysis">micro ct analysis</option>
+                                
+                                    <option value="pcl/ha">pcl/ha</option>
+                                
+                                    <option value="pcl/pcl-tcp">pcl/pcl-tcp</option>
+                                
+                                    <option value="rabbit model">rabbit model</option>
+                                
+                                    <option value="scaffold-cells constructs">scaffold-cells constructs</option>
+                                
+                                    <option value="material jetting (mj)">material jetting (mj)</option>
+                                
+                                    <option value="traditional fabrication methods">traditional fabrication methods</option>
+                                
+                                    <option value="multiscale strategies">multiscale strategies</option>
+                                
+                                    <option value="coagulation">coagulation</option>
+                                
+                                    <option value="wound healing applications">wound healing applications</option>
+                                
+                                    <option value="fibrinogen">fibrinogen</option>
+                                
+                                    <option value="production">production</option>
+                                
+                                    <option value="fluorinated silica nanoparticles">fluorinated silica nanoparticles</option>
+                                
+                                    <option value="polyurethane molecule">polyurethane molecule</option>
+                                
+                                    <option value="polycaprolactone">polycaprolactone</option>
+                                
+                                    <option value="chain extension">chain extension</option>
+                                
+                                    <option value="chondrogenic growth factors">chondrogenic growth factors</option>
+                                
+                                    <option value="complex tissue scaffolds">complex tissue scaffolds</option>
+                                
+                                    <option value="ethylene diamine">ethylene diamine</option>
+                                
+                                    <option value="poly(ether-b-amide)">poly(ether-b-amide)</option>
+                                
+                                    <option value="di-ps system">di-ps system</option>
+                                
+                                    <option value="superhydrophobic surface coating">superhydrophobic surface coating</option>
+                                
+                                    <option value="brittle ceramic materials">brittle ceramic materials</option>
+                                
+                                    <option value="center-crack detachment phenomenon">center-crack detachment phenomenon</option>
+                                
+                                    <option value="mushroom cap structures">mushroom cap structures</option>
+                                
+                                    <option value="compliant seam">compliant seam</option>
+                                
+                                    <option value="stiff skeletal components">stiff skeletal components</option>
+                                
+                                    <option value="accelerated healing process">accelerated healing process</option>
+                                
+                                    <option value="antibacterial activity">antibacterial activity</option>
+                                
+                                    <option value="cryogels">cryogels</option>
+                                
+                                    <option value="high specific surface areas">high specific surface areas</option>
+                                
+                                    <option value="low immunogenicity">low immunogenicity</option>
+                                
+                                    <option value="solid-state zibs">solid-state zibs</option>
+                                
+                                    <option value="rechargeability">rechargeability</option>
+                                
+                                    <option value="regeneration">regeneration</option>
+                                
+                                    <option value="endogenous sources">endogenous sources</option>
+                                
+                                    <option value="mineralized materials">mineralized materials</option>
+                                
+                                    <option value="hybrid nanofibers">hybrid nanofibers</option>
+                                
+                                    <option value="chitosan functional groups">chitosan functional groups</option>
+                                
+                                    <option value="copper ions">copper ions</option>
+                                
+                                    <option value="higher silica content">higher silica content</option>
+                                
+                                    <option value="hard template method">hard template method</option>
+                                
+                                    <option value="myofibers">myofibers</option>
+                                
+                                    <option value="large-strain elastic modulus">large-strain elastic modulus</option>
+                                
+                                    <option value="capsule wall material">capsule wall material</option>
+                                
+                                    <option value="meridional peaks">meridional peaks</option>
+                                
+                                    <option value="adhesion energy">adhesion energy</option>
+                                
+                                    <option value="intermolecular potential">intermolecular potential</option>
+                                
+                                    <option value="active components in functional soft systems">active components in functional soft systems</option>
+                                
+                                    <option value="bioresorbable electronics">bioresorbable electronics</option>
+                                
+                                    <option value="conformal biosensors">conformal biosensors</option>
+                                
+                                    <option value="epidermal electronics">epidermal electronics</option>
+                                
+                                    <option value="flexible biosupports/biomatrixes">flexible biosupports/biomatrixes</option>
+                                
+                                    <option value="flexible transistors">flexible transistors</option>
+                                
+                                    <option value="ile electronics">ile electronics</option>
+                                
+                                    <option value="resistive switching memory devices">resistive switching memory devices</option>
+                                
+                                    <option value="transient electronics">transient electronics</option>
+                                
+                                    <option value="ultraconformal bioelectronics">ultraconformal bioelectronics</option>
+                                
+                                    <option value="silk-derived carbon materials">silk-derived carbon materials</option>
+                                
+                                    <option value="conformable and intimate association with human tissues/organs">conformable and intimate association with human tissues/organs</option>
+                                
+                                    <option value="electronic skins">electronic skins</option>
+                                
+                                    <option value="flexible energy devices">flexible energy devices</option>
+                                
+                                    <option value="significant impact on diverse healthcare fields">significant impact on diverse healthcare fields</option>
+                                
+                                    <option value="the design and construction strategy for flexible electronics">the design and construction strategy for flexible electronics</option>
+                                
+                                    <option value="unique advantages combined with">unique advantages combined with</option>
+                                
+                                    <option value="wearable sensors">wearable sensors</option>
+                                
+                                    <option value="soft bioelectronics">soft bioelectronics</option>
+                                
+                                    <option value="offer significant impact on diverse healthcare fields">offer significant impact on diverse healthcare fields</option>
+                                
+                                    <option value="flexibility of metal coatings">flexibility of metal coatings</option>
+                                
+                                    <option value="skin adhesion">skin adhesion</option>
+                                
+                                    <option value="force-displacement curves">force-displacement curves</option>
+                                
+                                    <option value="sequential hydrogen bond rupture">sequential hydrogen bond rupture</option>
+                                
+                                    <option value="simultaneous hydrogen bond rupture">simultaneous hydrogen bond rupture</option>
+                                
+                                    <option value="transitional region">transitional region</option>
+                                
+                                    <option value="deformation mode">deformation mode</option>
+                                
+                                    <option value="recirculation zone">recirculation zone</option>
+                                
+                                    <option value="bending rigidity">bending rigidity</option>
+                                
+                                    <option value="dox">dox</option>
+                                
+                                    <option value="renewable resources">renewable resources</option>
+                                
+                                    <option value="sustainable materials">sustainable materials</option>
+                                
+                                    <option value="wearable_systems">wearable_systems</option>
+                                
+                                    <option value="electrodes">electrodes</option>
+                                
+                                    <option value="misalignment">misalignment</option>
+                                
+                                    <option value="spacing">spacing</option>
+                                
+                                    <option value="sliding resistance">sliding resistance</option>
+                                
+                                    <option value="kirkendall effect">kirkendall effect</option>
+                                
+                                    <option value="strong acid hydrolysis">strong acid hydrolysis</option>
+                                
+                                    <option value="helix pitch">helix pitch</option>
+                                
+                                    <option value="helix stability">helix stability</option>
+                                
+                                    <option value="π-stacking interactions">π-stacking interactions</option>
+                                
+                                    <option value="drug delivery">drug delivery</option>
+                                
+                                    <option value="nanospheric cap particles">nanospheric cap particles</option>
+                                
+                                    <option value="galectins">galectins</option>
+                                
+                                    <option value="surface glycans">surface glycans</option>
+                                
+                                    <option value="specific tensile strength">specific tensile strength</option>
+                                
+                                    <option value="vickers hardness">vickers hardness</option>
+                                
+                                    <option value="elastic strain">elastic strain</option>
+                                
+                                    <option value="first ply failure (fpf)">first ply failure (fpf)</option>
+                                
+                                    <option value="more ductile materials">more ductile materials</option>
+                                
+                                    <option value="pla scaffolds">pla scaffolds</option>
+                                
+                                    <option value="hyperelastic behavior">hyperelastic behavior</option>
+                                
+                                    <option value="interdigitating protrusions">interdigitating protrusions</option>
+                                
+                                    <option value="stiff plates">stiff plates</option>
+                                
+                                    <option value="internal stresses">internal stresses</option>
+                                
+                                    <option value="scutes">scutes</option>
+                                
+                                    <option value="short fiber neat films">short fiber neat films</option>
+                                
+                                    <option value="chemical linker method">chemical linker method</option>
+                                
+                                    <option value="borate ester bonds">borate ester bonds</option>
+                                
+                                    <option value="pbh">pbh</option>
+                                
+                                    <option value="biological carbonate-based hard materials">biological carbonate-based hard materials</option>
+                                
+                                    <option value="high disorder">high disorder</option>
+                                
+                                    <option value="high order">high order</option>
+                                
+                                    <option value="calcite grain orientation">calcite grain orientation</option>
+                                
+                                    <option value="distal exocuticle">distal exocuticle</option>
+                                
+                                    <option value="horizontal fibers">horizontal fibers</option>
+                                
+                                    <option value="other biologically formed hard materials">other biologically formed hard materials</option>
+                                
+                                    <option value="crystal co-orientation strength">crystal co-orientation strength</option>
+                                
+                                    <option value="specific habitats">specific habitats</option>
+                                
+                                    <option value="specific shell layer">specific shell layer</option>
+                                
+                                    <option value="nc fibrils">nc fibrils</option>
+                                
+                                    <option value="small- and wide-angle x-ray scattering (saxs/waxs)">small- and wide-angle x-ray scattering (saxs/waxs)</option>
+                                
+                                    <option value="non-mineralized collagen fibrils">non-mineralized collagen fibrils</option>
+                                
+                                    <option value="separation">separation</option>
+                                
+                                    <option value="induce">induce</option>
+                                
+                                    <option value="digital image correlation">digital image correlation</option>
+                                
+                                    <option value="localized deformation bands (in fibroinallier bone under melanelike loading conditions)">localized deformation bands (in fibroinallier bone under melanelike loading conditions)</option>
+                                
+                                    <option value="strain analysis">strain analysis</option>
+                                
+                                    <option value="palmetto wood specimens">palmetto wood specimens</option>
+                                
+                                    <option value="in-situ and ex-situ three point bending fracture tests">in-situ and ex-situ three point bending fracture tests</option>
+                                
+                                    <option value="strain maps">strain maps</option>
+                                
+                                    <option value="lc-polscope microscopy">lc-polscope microscopy</option>
+                                
+                                    <option value="blurred polarization signal">blurred polarization signal</option>
+                                
+                                    <option value="domains with varying grey levels">domains with varying grey levels</option>
+                                
+                                    <option value="identical grey levels">identical grey levels</option>
+                                
+                                    <option value="no visible structure">no visible structure</option>
+                                
+                                    <option value="prismatic layer">prismatic layer</option>
+                                
+                                    <option value="stacked nacre platelets">stacked nacre platelets</option>
+                                
+                                    <option value="similar structures">similar structures</option>
+                                
+                                    <option value="matrix sheet">matrix sheet</option>
+                                
+                                    <option value="prisms (blue areas)">prisms (blue areas)</option>
+                                
+                                    <option value="database">database</option>
+                                
+                                    <option value="storage device">storage device</option>
+                                
+                                    <option value="procedure">procedure</option>
+                                
+                                    <option value="hardware">hardware</option>
+                                
+                                    <option value="software">software</option>
+                                
+                                    <option value="computing">computing</option>
+                                
+                                    <option value="input">input</option>
+                                
+                                    <option value="output">output</option>
+                                
+                                    <option value="network">network</option>
+                                
+                                    <option value="operating system">operating system</option>
+                                
+                                    <option value="kernel">kernel</option>
+                                
+                                    <option value="app store">app store</option>
+                                
+                                    <option value="security features">security features</option>
+                                
+                                    <option value="user interface">user interface</option>
+                                
+                                    <option value="smartphone">smartphone</option>
+                                
+                                    <option value="memory">memory</option>
+                                
+                                    <option value="detailed method described by spedding and salat">detailed method described by spedding and salat</option>
+                                
+                                    <option value="lower levels">lower levels</option>
+                                
+                                    <option value="echolocation">echolocation</option>
+                                
+                                    <option value="mechanosensory whiskers">mechanosensory whiskers</option>
+                                
+                                    <option value="input/output">input/output</option>
+                                
+                                    <option value="promoted between neighboring plies">promoted between neighboring plies</option>
+                                
+                                    <option value="cell wall matrix">cell wall matrix</option>
+                                
+                                    <option value="gradient distribution of mechanical properties">gradient distribution of mechanical properties</option>
+                                
+                                    <option value="perforations">perforations</option>
+                                
+                                    <option value="failure mechanisms interaction">failure mechanisms interaction</option>
+                                
+                                    <option value="fitelli bridging">fitelli bridging</option>
+                                
+                                    <option value="large pull-out structures">large pull-out structures</option>
+                                
+                                    <option value="laser engraving">laser engraving</option>
+                                
+                                    <option value="global scales">global scales</option>
+                                
+                                    <option value="local stress concentration">local stress concentration</option>
+                                
+                                    <option value="local von mises stresses">local von mises stresses</option>
+                                
+                                    <option value="smaller grain sizes">smaller grain sizes</option>
+                                
+                                    <option value="organic matrix interlayers">organic matrix interlayers</option>
+                                
+                                    <option value="automated manufacturing">automated manufacturing</option>
+                                
+                                    <option value="carbon fiber-reinforced polymers">carbon fiber-reinforced polymers</option>
+                                
+                                    <option value="core-shell structures">core-shell structures</option>
+                                
+                                    <option value="glass fiber-reinforced polymers">glass fiber-reinforced polymers</option>
+                                
+                                    <option value="high local strains">high local strains</option>
+                                
+                                    <option value="isotropic specimens">isotropic specimens</option>
+                                
+                                    <option value="lower carbon footprint">lower carbon footprint</option>
+                                
+                                    <option value="recyclability">recyclability</option>
+                                
+                                    <option value="reinforcement">reinforcement</option>
+                                
+                                    <option value="specific young's modulus">specific young's modulus</option>
+                                
+                                    <option value="top-down methods">top-down methods</option>
+                                
+                                    <option value="brick-and-mortar pattern">brick-and-mortar pattern</option>
+                                
+                                    <option value="nanoclay">nanoclay</option>
+                                
+                                    <option value="varying cell wall layers">varying cell wall layers</option>
+                                
+                                    <option value="silicon carbide whiskers">silicon carbide whiskers</option>
+                                
+                                    <option value="baseline sample">baseline sample</option>
+                                
+                                    <option value="cancellous layer">cancellous layer</option>
+                                
+                                    <option value="higher loads">higher loads</option>
+                                
+                                    <option value="small loads">small loads</option>
+                                
+                                    <option value="biopolymer networks">biopolymer networks</option>
+                                
+                                    <option value="linear stiffness gradient">linear stiffness gradient</option>
+                                
+                                    <option value="heat transfer">heat transfer</option>
+                                
+                                    <option value="maximum porosity">maximum porosity</option>
+                                
+                                    <option value="minimum porosity">minimum porosity</option>
+                                
+                                    <option value="bi-linear cohesive zone model">bi-linear cohesive zone model</option>
+                                
+                                    <option value="initial failure">initial failure</option>
+                                
+                                    <option value="structures">structures</option>
+                                
+                                    <option value="bimetallic stripes">bimetallic stripes</option>
+                                
+                                    <option value="cold spray pressure">cold spray pressure</option>
+                                
+                                    <option value="depth of particle penetration">depth of particle penetration</option>
+                                
+                                    <option value="embedment layer thickness">embedment layer thickness</option>
+                                
+                                    <option value="surface roughness (s2)">surface roughness (s2)</option>
+                                
+                                    <option value="cold spray temperature">cold spray temperature</option>
+                                
+                                    <option value="number of layers deposited">number of layers deposited</option>
+                                
+                                    <option value="peak-to-valley roughness (s2)">peak-to-valley roughness (s2)</option>
+                                
+                                    <option value="feeder rotation rate">feeder rotation rate</option>
+                                
+                                    <option value="solid">solid</option>
+                                
+                                    <option value="cim">cim</option>
+                                
+                                    <option value="dpim">dpim</option>
+                                
+                                    <option value="morphological analysis">morphological analysis</option>
+                                
+                                    <option value="pm/cs/gly e-skin">pm/cs/gly e-skin</option>
+                                
+                                    <option value="nanofiber distribution">nanofiber distribution</option>
+                                
+                                    <option value="nanofiber morphology">nanofiber morphology</option>
+                                
+                                    <option value="shear action">shear action</option>
+                                
+                                    <option value="trc">trc</option>
+                                
+                                    <option value="bone defect repair">bone defect repair</option>
+                                
+                                    <option value="homogeneous and isotropic material">homogeneous and isotropic material</option>
+                                
+                                    <option value="whale baleen">whale baleen</option>
+                                
+                                    <option value="sandwich-tubular structure">sandwich-tubular structure</option>
+                                
+                                    <option value="solid shell">solid shell</option>
+                                
+                                    <option value="tubular layer">tubular layer</option>
+                                
+                                    <option value="microstructured tubules">microstructured tubules</option>
+                                
+                                    <option value="optimal performance">optimal performance</option>
+                                
+                                    <option value="weak mechanical properties">weak mechanical properties</option>
+                                
+                                    <option value="optimized properties">optimized properties</option>
+                                
+                                    <option value="biological inspiration">biological inspiration</option>
+                                
+                                    <option value="bio-inspired design">bio-inspired design</option>
+                                
+                                    <option value="multiple levels of hierarchy">multiple levels of hierarchy</option>
+                                
+                                    <option value="timber">timber</option>
+                                
+                                    <option value="fixed">fixed</option>
+                                
+                                    <option value="joint">joint</option>
+                                
+                                    <option value="removal">removal</option>
+                                
+                                    <option value="animal surgery study">animal surgery study</option>
+                                
+                                    <option value="tail domain">tail domain</option>
+                                
+                                    <option value="accuracy range">accuracy range</option>
+                                
+                                    <option value="longer printing times">longer printing times</option>
+                                
+                                    <option value="lower mechanical properties">lower mechanical properties</option>
+                                
+                                    <option value="lower processing temperatures">lower processing temperatures</option>
+                                
+                                    <option value="lower viscosity">lower viscosity</option>
+                                
+                                    <option value="material oozing or stringing between layers">material oozing or stringing between layers</option>
+                                
+                                    <option value="thermally sensitive polymers">thermally sensitive polymers</option>
+                                
+                                    <option value="first hydrogen bonds">first hydrogen bonds</option>
+                                
+                                    <option value="high pulling rates">high pulling rates</option>
+                                
+                                    <option value="potassium silicate solution">potassium silicate solution</option>
+                                
+                                    <option value="inflammatory reaction">inflammatory reaction</option>
+                                
+                                    <option value="proliferative phase">proliferative phase</option>
+                                
+                                    <option value="remodeling phase">remodeling phase</option>
+                                
+                                    <option value="direct bone formation">direct bone formation</option>
+                                
+                                    <option value="bioactive ceramics">bioactive ceramics</option>
+                                
+                                    <option value="indirect bone formation">indirect bone formation</option>
+                                
+                                    <option value="osx protein">osx protein</option>
+                                
+                                    <option value="randomly oriented lamellae">randomly oriented lamellae</option>
+                                
+                                    <option value="demineralized thin sections">demineralized thin sections</option>
+                                
+                                    <option value="rim">rim</option>
+                                
+                                    <option value="metal precursors">metal precursors</option>
+                                
+                                    <option value="anti-reflective surfaces">anti-reflective surfaces</option>
+                                
+                                    <option value="interference">interference</option>
+                                
+                                    <option value="mie scattering">mie scattering</option>
+                                
+                                    <option value="optical functionality">optical functionality</option>
+                                
+                                    <option value="troglobionts">troglobionts</option>
+                                
+                                    <option value="tyndall scattering">tyndall scattering</option>
+                                
+                                    <option value="regular nfsk structures">regular nfsk structures</option>
+                                
+                                    <option value="polymer composite (bc)">polymer composite (bc)</option>
+                                
+                                    <option value="fibrous media">fibrous media</option>
+                                
+                                    <option value="cnfs mechanical properties">cnfs mechanical properties</option>
+                                
+                                    <option value="critical fiber length">critical fiber length</option>
+                                
+                                    <option value="acoh">acoh</option>
+                                
+                                    <option value="cryogenic electron microscopy">cryogenic electron microscopy</option>
+                                
+                                    <option value="['photopolymerization', 'solventevaporation']">['photopolymerization', 'solventevaporation']</option>
+                                
+                                    <option value="x-ray ct">x-ray ct</option>
+                                
+                                    <option value="nacre proteins">nacre proteins</option>
+                                
+                                    <option value="arrangement of lamellae or domains">arrangement of lamellae or domains</option>
+                                
+                                    <option value="bending tests">bending tests</option>
+                                
+                                    <option value="horse hoof">horse hoof</option>
+                                
+                                    <option value="elevated porosity">elevated porosity</option>
+                                
+                                    <option value="lower hardness">lower hardness</option>
+                                
+                                    <option value="weak interfaces between cell lamellae">weak interfaces between cell lamellae</option>
+                                
+                                    <option value="contact surfaces">contact surfaces</option>
+                                
+                                    <option value="local moduli">local moduli</option>
+                                
+                                    <option value="hydrogel surface">hydrogel surface</option>
+                                
+                                    <option value="layered silicate nanoparticles">layered silicate nanoparticles</option>
+                                
+                                    <option value="keratinocytes">keratinocytes</option>
+                                
+                                    <option value="hollow elliptical tubules">hollow elliptical tubules</option>
+                                
+                                    <option value="keratinous cells">keratinous cells</option>
+                                
+                                    <option value="keratin filaments">keratin filaments</option>
+                                
+                                    <option value="bkeratinfilaments">bkeratinfilaments</option>
+                                
+                                    <option value="exponential decay function">exponential decay function</option>
+                                
+                                    <option value="weibull distribution">weibull distribution</option>
+                                
+                                    <option value="fiber strength distribution">fiber strength distribution</option>
+                                
+                                    <option value="strength distribution">strength distribution</option>
+                                
+                                    <option value="stress at failure">stress at failure</option>
+                                
+                                    <option value="horse hair specimens">horse hair specimens</option>
+                                
+                                    <option value="human hair specimens">human hair specimens</option>
+                                
+                                    <option value="σ0">σ0</option>
+                                
+                                    <option value="nacre mimetic composite">nacre mimetic composite</option>
+                                
+                                    <option value="highly porous 3d scaffolds">highly porous 3d scaffolds</option>
+                                
+                                    <option value="stress-strain experiments">stress-strain experiments</option>
+                                
+                                    <option value="srct">srct</option>
+                                
+                                    <option value="8gigsshell">8gigsshell</option>
+                                
+                                    <option value="complexdamagefailureevolution">complexdamagefailureevolution</option>
+                                
+                                    <option value="displacementloading">displacementloading</option>
+                                
+                                    <option value="internalmicrostructureevolution">internalmicrostructureevolution</option>
+                                
+                                    <option value="multistageinterfacecoordination">multistageinterfacecoordination</option>
+                                
+                                    <option value="nondestructive">nondestructive</option>
+                                
+                                    <option value="online">online</option>
+                                
+                                    <option value="projectionimage">projectionimage</option>
+                                
+                                    <option value="secondorderlamellae">secondorderlamellae</option>
+                                
+                                    <option value="3d photonic crystals">3d photonic crystals</option>
+                                
+                                    <option value="histidine-functionalized peptide supramolecular assemblies">histidine-functionalized peptide supramolecular assemblies</option>
+                                
+                                    <option value="research challenges">research challenges</option>
+                                
+                                    <option value="biological materials science">biological materials science</option>
+                                
+                                    <option value="directly imposing special topographies during the design stage">directly imposing special topographies during the design stage</option>
+                                
+                                    <option value="future perspectives">future perspectives</option>
+                                
+                                    <option value="buffer molecule">buffer molecule</option>
+                                
+                                    <option value="carbonic anhydrase">carbonic anhydrase</option>
+                                
+                                    <option value="his64">his64</option>
+                                
+                                    <option value="long-range proton transfer">long-range proton transfer</option>
+                                
+                                    <option value="metalloenzymes">metalloenzymes</option>
+                                
+                                    <option value="transition metals">transition metals</option>
+                                
+                                    <option value="conformation">conformation</option>
+                                
+                                    <option value="coacervate phase separation">coacervate phase separation</option>
+                                
+                                    <option value="conformational transformations">conformational transformations</option>
+                                
+                                    <option value="metal cations">metal cations</option>
+                                
+                                    <option value="oligomerization">oligomerization</option>
+                                
+                                    <option value="protonation">protonation</option>
+                                
+                                    <option value="histidyl binding sites">histidyl binding sites</option>
+                                
+                                    <option value="metal-ligand binding affinities">metal-ligand binding affinities</option>
+                                
+                                    <option value="metal ions (mis)">metal ions (mis)</option>
+                                
+                                    <option value="optoelectronic materials">optoelectronic materials</option>
+                                
+                                    <option value="snfnetworks">snfnetworks</option>
+                                
+                                    <option value="hbm">hbm</option>
+                                
+                                    <option value="adapted properties at lower scales">adapted properties at lower scales</option>
+                                
+                                    <option value="multi-functional biological materials">multi-functional biological materials</option>
+                                
+                                    <option value="robustness at higher scales">robustness at higher scales</option>
+                                
+                                    <option value="silencing mechanisms">silencing mechanisms</option>
+                                
+                                    <option value="structures with multiple scales">structures with multiple scales</option>
+                                
+                                    <option value="shape transformers (psg)">shape transformers (psg)</option>
+                                
+                                    <option value="double-helix structure">double-helix structure</option>
+                                
+                                    <option value="interplay">interplay</option>
+                                
+                                    <option value="bone microstructure">bone microstructure</option>
+                                
+                                    <option value="higher osteon density">higher osteon density</option>
+                                
+                                    <option value="higher proportion of ages cross-links">higher proportion of ages cross-links</option>
+                                
+                                    <option value="reduced extrinsic toughness">reduced extrinsic toughness</option>
+                                
+                                    <option value="catalyst for creation of extrinsic toughening">catalyst for creation of extrinsic toughening</option>
+                                
+                                    <option value="increased density/length">increased density/length</option>
+                                
+                                    <option value="amplified percolation networks">amplified percolation networks</option>
+                                
+                                    <option value="osteonal_lamellae">osteonal_lamellae</option>
+                                
+                                    <option value="bone fracture toughness">bone fracture toughness</option>
+                                
+                                    <option value="dilatation">dilatation</option>
+                                
+                                    <option value="discrepancy">discrepancy</option>
+                                
+                                    <option value="irreversible strain">irreversible strain</option>
+                                
+                                    <option value="crack extension resistance">crack extension resistance</option>
+                                
+                                    <option value="crack tip">crack tip</option>
+                                
+                                    <option value="icom">icom</option>
+                                
+                                    <option value="bone material properties (13)">bone material properties (13)</option>
+                                
+                                    <option value="chiral templating">chiral templating</option>
+                                
+                                    <option value="coassembly">coassembly</option>
+                                
+                                    <option value="laminations">laminations</option>
+                                
+                                    <option value="poly(ethylene glycol)">poly(ethylene glycol)</option>
+                                
+                                    <option value="post-processing procedures">post-processing procedures</option>
+                                
+                                    <option value="flexible and tunable iridescent composite films">flexible and tunable iridescent composite films</option>
+                                
+                                    <option value="robust flexible nanocomposites">robust flexible nanocomposites</option>
+                                
+                                    <option value="strong and highly anisotropic aerogels">strong and highly anisotropic aerogels</option>
+                                
+                                    <option value="ultrastrong fibers">ultrastrong fibers</option>
+                                
+                                    <option value="ultrastrong nanocomposite films">ultrastrong nanocomposite films</option>
+                                
+                                    <option value="crude oil-water mixture separation">crude oil-water mixture separation</option>
+                                
+                                    <option value="excellent salt resistance">excellent salt resistance</option>
+                                
+                                    <option value="good ph stability">good ph stability</option>
+                                
+                                    <option value="no water-flux decline">no water-flux decline</option>
+                                
+                                    <option value="chiral nematic liquid crystals">chiral nematic liquid crystals</option>
+                                
+                                    <option value="structural color reflectance">structural color reflectance</option>
+                                
+                                    <option value="order parameter">order parameter</option>
+                                
+                                    <option value="polymer fibers">polymer fibers</option>
+                                
+                                    <option value="chiral photonic crystals">chiral photonic crystals</option>
+                                
+                                    <option value="maximum adhesion">maximum adhesion</option>
+                                
+                                    <option value="fcs">fcs</option>
+                                
+                                    <option value="glutamax">glutamax</option>
+                                
+                                    <option value="sodium pyruvate">sodium pyruvate</option>
+                                
+                                    <option value="nh4oh">nh4oh</option>
+                                
+                                    <option value="helical twist">helical twist</option>
+                                
+                                    <option value="crusher claw">crusher claw</option>
+                                
+                                    <option value="mineralization degree">mineralization degree</option>
+                                
+                                    <option value="wnt signaling pathway">wnt signaling pathway</option>
+                                
+                                    <option value="promotes osteogenic differentiation">promotes osteogenic differentiation</option>
+                                
+                                    <option value="both directions">both directions</option>
+                                
+                                    <option value="classical constitutive model">classical constitutive model</option>
+                                
+                                    <option value="microstructural deformation modes">microstructural deformation modes</option>
+                                
+                                    <option value="muscle fibers">muscle fibers</option>
+                                
+                                    <option value="one-dimensional cosserat continua">one-dimensional cosserat continua</option>
+                                
+                                    <option value="peri-mysial collagen mesh">peri-mysial collagen mesh</option>
+                                
+                                    <option value="non-linear pressure volume curve">non-linear pressure volume curve</option>
+                                
+                                    <option value="passive cardiac tissue behavior">passive cardiac tissue behavior</option>
+                                
+                                    <option value="shear experimental data">shear experimental data</option>
+                                
+                                    <option value="moment of inertia">moment of inertia</option>
+                                
+                                    <option value="simplified formulation">simplified formulation</option>
+                                
+                                    <option value="out-of-plane deformations">out-of-plane deformations</option>
+                                
+                                    <option value="multiple barriers">multiple barriers</option>
+                                
+                                    <option value="multiple regions">multiple regions</option>
+                                
+                                    <option value="interior fibrous foam-like layer">interior fibrous foam-like layer</option>
+                                
+                                    <option value="individual plates">individual plates</option>
+                                
+                                    <option value="lamellar bone layers">lamellar bone layers</option>
+                                
+                                    <option value="bending strength">bending strength</option>
+                                
+                                    <option value="further studies">further studies</option>
+                                
+                                    <option value="bridging zone">bridging zone</option>
+                                
+                                    <option value="alumina">alumina</option>
+                                
+                                    <option value="small- and large-deformation mechanical response characteristics">small- and large-deformation mechanical response characteristics</option>
+                                
+                                    <option value="microdomes">microdomes</option>
+                                
+                                    <option value="micropyramids">micropyramids</option>
+                                
+                                    <option value="creep">creep</option>
+                                
+                                    <option value="thermal drift">thermal drift</option>
+                                
+                                    <option value="inherentstructure">inherentstructure</option>
+                                
+                                    <option value="nativelikecollagenmaterials">nativelikecollagenmaterials</option>
+                                
+                                    <option value="reconstructedcollagenmaterials">reconstructedcollagenmaterials</option>
+                                
+                                    <option value="spiesz and zysset">spiesz and zysset</option>
+                                
+                                    <option value="bisolica addition">bisolica addition</option>
+                                
+                                    <option value="interlocking teeth">interlocking teeth</option>
+                                
+                                    <option value="resistance to fracture propagation">resistance to fracture propagation</option>
+                                
+                                    <option value="structural ordering">structural ordering</option>
+                                
+                                    <option value="average weight molecular weight (mw)">average weight molecular weight (mw)</option>
+                                
+                                    <option value="characterization">characterization</option>
+                                
+                                    <option value="carboxyl groups">carboxyl groups</option>
+                                
+                                    <option value="mw">mw</option>
+                                
+                                    <option value="perkin elmer spectrum two ftir spectrometer">perkin elmer spectrum two ftir spectrometer</option>
+                                
+                                    <option value="pore architecture">pore architecture</option>
+                                
+                                    <option value="pore walls">pore walls</option>
+                                
+                                    <option value="small angle oscillatory shear measurements">small angle oscillatory shear measurements</option>
+                                
+                                    <option value="cxg_pa-h3 mixtures">cxg_pa-h3 mixtures</option>
+                                
+                                    <option value="cd spectra">cd spectra</option>
+                                
+                                    <option value="local density of peptide chromophores">local density of peptide chromophores</option>
+                                
+                                    <option value="bt13 peptide">bt13 peptide</option>
+                                
+                                    <option value="relevance for various applications">relevance for various applications</option>
+                                
+                                    <option value="thermal stability profiles">thermal stability profiles</option>
+                                
+                                    <option value="chromatin accessibility">chromatin accessibility</option>
+                                
+                                    <option value="decreased expression of genes involved in apoptosis">decreased expression of genes involved in apoptosis</option>
+                                
+                                    <option value="decreased expression of genes involved in differentiation">decreased expression of genes involved in differentiation</option>
+                                
+                                    <option value="increased expression of genes involved in cell proliferation">increased expression of genes involved in cell proliferation</option>
+                                
+                                    <option value="average distance between particles">average distance between particles</option>
+                                
+                                    <option value="interactions between particles">interactions between particles</option>
+                                
+                                    <option value="particle diameter">particle diameter</option>
+                                
+                                    <option value="random packing">random packing</option>
+                                
+                                    <option value="orientation angle">orientation angle</option>
+                                
+                                    <option value="enhancement of rotation">enhancement of rotation</option>
+                                
+                                    <option value="particles">particles</option>
+                                
+                                    <option value="effect on rotation">effect on rotation</option>
+                                
+                                    <option value="stress contours">stress contours</option>
+                                
+                                    <option value="property encoding">property encoding</option>
+                                
+                                    <option value="syntheticcomposite">syntheticcomposite</option>
+                                
+                                    <option value="graduallydecreasingthickness">graduallydecreasingthickness</option>
+                                
+                                    <option value="curvature of chief rays">curvature of chief rays</option>
+                                
+                                    <option value="dependencies on the underlying constituent spicule geometry">dependencies on the underlying constituent spicule geometry</option>
+                                
+                                    <option value="division into terminal branches">division into terminal branches</option>
+                                
+                                    <option value="horizontal ray">horizontal ray</option>
+                                
+                                    <option value="local thickenings">local thickenings</option>
+                                
+                                    <option value="network of non-planar cruciform spicules">network of non-planar cruciform spicules</option>
+                                
+                                    <option value="origins of ordering">origins of ordering</option>
+                                
+                                    <option value="ornamental protuberances">ornamental protuberances</option>
+                                
+                                    <option value="quadrate lattice symmetry">quadrate lattice symmetry</option>
+                                
+                                    <option value="unal development of rays">unal development of rays</option>
+                                
+                                    <option value="vertical and horizontal struts">vertical and horizontal struts</option>
+                                
+                                    <option value="plates">plates</option>
+                                
+                                    <option value="rods">rods</option>
+                                
+                                    <option value="bioinspiredtougheningmechanisms">bioinspiredtougheningmechanisms</option>
+                                
+                                    <option value="highceramiccontent">highceramiccontent</option>
+                                
+                                    <option value="interlayeradhesion">interlayeradhesion</option>
+                                
+                                    <option value="planarlayeredstructure">planarlayeredstructure</option>
+                                
+                                    <option value="concrete structures">concrete structures</option>
+                                
+                                    <option value="self-healing systems">self-healing systems</option>
+                                
+                                    <option value="potassium silicate">potassium silicate</option>
+                                
+                                    <option value="colored dyes">colored dyes</option>
+                                
+                                    <option value="conductive pathway">conductive pathway</option>
+                                
+                                    <option value="electrode surfaces">electrode surfaces</option>
+                                
+                                    <option value="polymer electrolytes">polymer electrolytes</option>
+                                
+                                    <option value="300 million years ago">300 million years ago</option>
+                                
+                                    <option value="octopuses">octopuses</option>
+                                
+                                    <option value="cellular processes">cellular processes</option>
+                                
+                                    <option value="outputs released by cells">outputs released by cells</option>
+                                
+                                    <option value="compensation">compensation</option>
+                                
+                                    <option value="octopus eyes">octopus eyes</option>
+                                
+                                    <option value="octopus taste receptors">octopus taste receptors</option>
+                                
+                                    <option value="octopus touch receptors">octopus touch receptors</option>
+                                
+                                    <option value="taste">taste</option>
+                                
+                                    <option value="touch">touch</option>
+                                
+                                    <option value="mollusks">mollusks</option>
+                                
+                                    <option value="producing natural materials">producing natural materials</option>
+                                
+                                    <option value="sensory organs">sensory organs</option>
+                                
+                                    <option value="cephalopods">cephalopods</option>
+                                
+                                    <option value="closest relatives">closest relatives</option>
+                                
+                                    <option value="intermittent and irregular characteristics">intermittent and irregular characteristics</option>
+                                
+                                    <option value="iridophores">iridophores</option>
+                                
+                                    <option value="x-ray diffraction studies">x-ray diffraction studies</option>
+                                
+                                    <option value="meristem">meristem</option>
+                                
+                                    <option value="peridermis">peridermis</option>
+                                
+                                    <option value="open access freeware">open access freeware</option>
+                                
+                                    <option value="data base expansion">data base expansion</option>
+                                
+                                    <option value="reproducibility">reproducibility</option>
+                                
+                                    <option value="structural control">structural control</option>
+                                
+                                    <option value="co2">co2</option>
+                                
+                                    <option value="residue">residue</option>
+                                
+                                    <option value="pore density">pore density</option>
+                                
+                                    <option value="changing substrates">changing substrates</option>
+                                
+                                    <option value="emulsion electrospinning">emulsion electrospinning</option>
+                                
+                                    <option value="regulating environmental humidity">regulating environmental humidity</option>
+                                
+                                    <option value="diffusion-based processes">diffusion-based processes</option>
+                                
+                                    <option value="conventional synthetic materials">conventional synthetic materials</option>
+                                
+                                    <option value="external energy sources">external energy sources</option>
+                                
+                                    <option value="high mechanical properties">high mechanical properties</option>
+                                
+                                    <option value="lightweight nature">lightweight nature</option>
+                                
+                                    <option value="biomimetic composites">biomimetic composites</option>
+                                
+                                    <option value="circularly polarized light">circularly polarized light</option>
+                                
+                                    <option value="transparent chitin or cellulose nanofibril-based helicoidal structures">transparent chitin or cellulose nanofibril-based helicoidal structures</option>
+                                
+                                    <option value="selective reflection">selective reflection</option>
+                                
+                                    <option value="handedness">handedness</option>
+                                
+                                    <option value="dactyl club">dactyl club</option>
+                                
+                                    <option value="microcrack propagation">microcrack propagation</option>
+                                
+                                    <option value="partially mineralized chitin nanofibril helicoidal structure">partially mineralized chitin nanofibril helicoidal structure</option>
+                                
+                                    <option value="out-of-plane stiffness">out-of-plane stiffness</option>
+                                
+                                    <option value="grain boundaries">grain boundaries</option>
+                                
+                                    <option value="soft organic layer intercalated in grain boundaries">soft organic layer intercalated in grain boundaries</option>
+                                
+                                    <option value="weaker polarization response">weaker polarization response</option>
+                                
+                                    <option value="mechanical milling">mechanical milling</option>
+                                
+                                    <option value="spark plasma sintering">spark plasma sintering</option>
+                                
+                                    <option value="thermo-mechanical processing">thermo-mechanical processing</option>
+                                
+                                    <option value="apparent_elastic_modulus">apparent_elastic_modulus</option>
+                                
+                                    <option value="uniaxial_compression">uniaxial_compression</option>
+                                
+                                    <option value="cone_penetrometry">cone_penetrometry</option>
+                                
+                                    <option value="limitations_of_current_methods_for_nonlinear_viscoelasticity_in_fats">limitations_of_current_methods_for_nonlinear_viscoelasticity_in_fats</option>
+                                
+                                    <option value="edge_fracture">edge_fracture</option>
+                                
+                                    <option value="test_reproducibility">test_reproducibility</option>
+                                
+                                    <option value="laos">laos</option>
+                                
+                                    <option value="amply_operational_window">amply_operational_window</option>
+                                
+                                    <option value="controlled_flow">controlled_flow</option>
+                                
+                                    <option value="frameworks_for_data_interpretation">frameworks_for_data_interpretation</option>
+                                
+                                    <option value="superior_sensitivity">superior_sensitivity</option>
+                                
+                                    <option value="viscoelastic_characterization">viscoelastic_characterization</option>
+                                
+                                    <option value="widening_deformation_window">widening_deformation_window</option>
+                                
+                                    <option value="shear_creep">shear_creep</option>
+                                
+                                    <option value="adjoining t interfaces">adjoining t interfaces</option>
+                                
+                                    <option value="steady_shear">steady_shear</option>
+                                
+                                    <option value="stress_relaxation">stress_relaxation</option>
+                                
+                                    <option value="thixotropic_effects">thixotropic_effects</option>
+                                
+                                    <option value="transients">transients</option>
+                                
+                                    <option value="p morphologies">p morphologies</option>
+                                
+                                    <option value="carbon nanotube forest">carbon nanotube forest</option>
+                                
+                                    <option value="areal density">areal density</option>
+                                
+                                    <option value="periodicity-related constant">periodicity-related constant</option>
+                                
+                                    <option value="spatially controlled growth">spatially controlled growth</option>
+                                
+                                    <option value="adhesive polymer pei-c">adhesive polymer pei-c</option>
+                                
+                                    <option value="polymer infiltration">polymer infiltration</option>
+                                
+                                    <option value="aligned and self-organized structure">aligned and self-organized structure</option>
+                                
+                                    <option value="cnt bundles">cnt bundles</option>
+                                
+                                    <option value="composite rigidity">composite rigidity</option>
+                                
+                                    <option value="outer diameter">outer diameter</option>
+                                
+                                    <option value="hydroxyapatite matrix">hydroxyapatite matrix</option>
+                                
+                                    <option value="iijima et al.">iijima et al.</option>
+                                
+                                    <option value="doping">doping</option>
+                                
+                                    <option value="functionalizing">functionalizing</option>
+                                
+                                    <option value="soft epitaxy">soft epitaxy</option>
+                                
+                                    <option value="polymer 2d crystals">polymer 2d crystals</option>
+                                
+                                    <option value="core-spun yarn">core-spun yarn</option>
+                                
+                                    <option value="exceptional interfacial properties">exceptional interfacial properties</option>
+                                
+                                    <option value="biotemplates">biotemplates</option>
+                                
+                                    <option value="m13 bacteriophages">m13 bacteriophages</option>
+                                
+                                    <option value="confinement effects">confinement effects</option>
+                                
+                                    <option value="specific ligand recognition">specific ligand recognition</option>
+                                
+                                    <option value="ga cross-linker">ga cross-linker</option>
+                                
+                                    <option value="g3p">g3p</option>
+                                
+                                    <option value="host bacteria">host bacteria</option>
+                                
+                                    <option value="chemically cross-linked hydrogels">chemically cross-linked hydrogels</option>
+                                
+                                    <option value="adhesiveness">adhesiveness</option>
+                                
+                                    <option value="dynamic coloration">dynamic coloration</option>
+                                
+                                    <option value="electrostatic induction">electrostatic induction</option>
+                                
+                                    <option value="fluorescence">fluorescence</option>
+                                
+                                    <option value="static coloration">static coloration</option>
+                                
+                                    <option value="dry etching">dry etching</option>
+                                
+                                    <option value="disease diagnostics">disease diagnostics</option>
+                                
+                                    <option value="theranostics">theranostics</option>
+                                
+                                    <option value="therapy">therapy</option>
+                                
+                                    <option value="charge density">charge density</option>
+                                
+                                    <option value="feeding rate">feeding rate</option>
+                                
+                                    <option value="field strength">field strength</option>
+                                
+                                    <option value="relative humidity">relative humidity</option>
+                                
+                                    <option value="substrate type">substrate type</option>
+                                
+                                    <option value="vapor pressure">vapor pressure</option>
+                                
+                                    <option value="silica spheres">silica spheres</option>
+                                
+                                    <option value="electrical stimulation">electrical stimulation</option>
+                                
+                                    <option value="nerve cell cultures">nerve cell cultures</option>
+                                
+                                    <option value="process improvement">process improvement</option>
+                                
+                                    <option value="process optimization">process optimization</option>
+                                
+                                    <option value="muscle-tendon units">muscle-tendon units</option>
+                                
+                                    <option value="neuromuscular junctions">neuromuscular junctions</option>
+                                
+                                    <option value="tendon-bone units">tendon-bone units</option>
+                                
+                                    <option value="living organs and tissues">living organs and tissues</option>
+                                
+                                    <option value="hybrid hydrogels">hybrid hydrogels</option>
+                                
+                                    <option value="potential applications">potential applications</option>
+                                
+                                    <option value="pla material">pla material</option>
+                                
+                                    <option value="bioleaching">bioleaching</option>
+                                
+                                    <option value="peng et al.">peng et al.</option>
+                                
+                                    <option value="sodium alginate">sodium alginate</option>
+                                
+                                    <option value="tang et al.">tang et al.</option>
+                                
+                                    <option value="micromachining technologies">micromachining technologies</option>
+                                
+                                    <option value="mechanical behavior of nacre">mechanical behavior of nacre</option>
+                                
+                                    <option value="combination">combination</option>
+                                
+                                    <option value="of the microstructure">of the microstructure</option>
+                                
+                                    <option value="provides">provides</option>
+                                
+                                    <option value="specimen-specific properties">specimen-specific properties</option>
+                                
+                                    <option value="yields">yields</option>
+                                
+                                    <option value="bioprinting">bioprinting</option>
+                                
+                                    <option value="peaks">peaks</option>
+                                
+                                    <option value="metal substrate">metal substrate</option>
+                                
+                                    <option value="cell length">cell length</option>
+                                
+                                    <option value="cell width">cell width</option>
+                                
+                                    <option value="elongated morphologies">elongated morphologies</option>
+                                
+                                    <option value="non-elongated morphologies">non-elongated morphologies</option>
+                                
+                                    <option value="surfaces without nw">surfaces without nw</option>
+                                
+                                    <option value="oxide passivation layer">oxide passivation layer</option>
+                                
+                                    <option value="protective tio2 layers">protective tio2 layers</option>
+                                
+                                    <option value="anisotropic shapes">anisotropic shapes</option>
+                                
+                                    <option value="compliant interlayers">compliant interlayers</option>
+                                
+                                    <option value="continuous networked arrays">continuous networked arrays</option>
+                                
+                                    <option value="crosses">crosses</option>
+                                
+                                    <option value="curved shapes">curved shapes</option>
+                                
+                                    <option value="deformation-induced changes in geometry">deformation-induced changes in geometry</option>
+                                
+                                    <option value="flexible substrates">flexible substrates</option>
+                                
+                                    <option value="overhanging shapes">overhanging shapes</option>
+                                
+                                    <option value="stiff replica materials">stiff replica materials</option>
+                                
+                                    <option value="stiffness gradients">stiffness gradients</option>
+                                
+                                    <option value="stretching/compressing along specific directions">stretching/compressing along specific directions</option>
+                                
+                                    <option value="surface-related phenomena">surface-related phenomena</option>
+                                
+                                    <option value="tapered shapes">tapered shapes</option>
+                                
+                                    <option value="tilting">tilting</option>
+                                
+                                    <option value="variable material properties">variable material properties</option>
+                                
+                                    <option value="varying fiber lengths">varying fiber lengths</option>
+                                
+                                    <option value="gold sputtering">gold sputtering</option>
+                                
+                                    <option value="gpa6">gpa6</option>
+                                
+                                    <option value="multiscale fibrous composites (msbcs)">multiscale fibrous composites (msbcs)</option>
+                                
+                                    <option value="pa6">pa6</option>
+                                
+                                    <option value="self-organized m13 filamentous phage">self-organized m13 filamentous phage</option>
+                                
+                                    <option value="bioactive properties">bioactive properties</option>
+                                
+                                    <option value="self-healing behavior">self-healing behavior</option>
+                                
+                                    <option value="pva/montmorillonite nanocomposites">pva/montmorillonite nanocomposites</option>
+                                
+                                    <option value="varying scales">varying scales</option>
+                                
+                                    <option value="bioactive factor incorporation">bioactive factor incorporation</option>
+                                
+                                    <option value="cell encapsulation">cell encapsulation</option>
+                                
+                                    <option value="drug loading">drug loading</option>
+                                
+                                    <option value="protein immobilization">protein immobilization</option>
+                                
+                                    <option value="structural diversity">structural diversity</option>
+                                
+                                    <option value="random coils">random coils</option>
+                                
+                                    <option value="universality-diversity paradigm">universality-diversity paradigm</option>
+                                
+                                    <option value="structural makeup">structural makeup</option>
+                                
+                                    <option value="ha deposition">ha deposition</option>
+                                
+                                    <option value="ordered nanotubes">ordered nanotubes</option>
+                                
+                                    <option value="alkaline phosphatase">alkaline phosphatase</option>
+                                
+                                    <option value="bone volume">bone volume</option>
+                                
+                                    <option value="bone volume fraction (bv/tv)">bone volume fraction (bv/tv)</option>
+                                
+                                    <option value="osteocalcin (ocn)">osteocalcin (ocn)</option>
+                                
+                                    <option value="trabecular thickness (tb.th)">trabecular thickness (tb.th)</option>
+                                
+                                    <option value="critical size defects">critical size defects</option>
+                                
+                                    <option value="implant">implant</option>
+                                
+                                    <option value="implant failure">implant failure</option>
+                                
+                                    <option value="rabbit models">rabbit models</option>
+                                
+                                    <option value="scaffold degradation">scaffold degradation</option>
+                                
+                                    <option value="titanium implants">titanium implants</option>
+                                
+                                    <option value="dermal bone">dermal bone</option>
+                                
+                                    <option value="minor loads">minor loads</option>
+                                
+                                    <option value="ribs">ribs</option>
+                                
+                                    <option value="endochondral ossification">endochondral ossification</option>
+                                
+                                    <option value="blunt shock">blunt shock</option>
+                                
+                                    <option value="dorsal">dorsal</option>
+                                
+                                    <option value="predator attacks">predator attacks</option>
+                                
+                                    <option value="ventral">ventral</option>
+                                
+                                    <option value="soft unmineralized collagen joints">soft unmineralized collagen joints</option>
+                                
+                                    <option value="ostwald ripening">ostwald ripening</option>
+                                
+                                    <option value="overall mechanical resistance">overall mechanical resistance</option>
+                                
+                                    <option value="park et al.">park et al.</option>
+                                
+                                    <option value="asthmatic airway epithelial cells">asthmatic airway epithelial cells</option>
+                                
+                                    <option value="alginate network">alginate network</option>
+                                
+                                    <option value="phema network">phema network</option>
+                                
+                                    <option value="cel">cel</option>
+                                
+                                    <option value="aqueous electrolyte">aqueous electrolyte</option>
+                                
+                                    <option value="ion interaction">ion interaction</option>
+                                
+                                    <option value="nim">nim</option>
+                                
+                                    <option value="bulk enamel">bulk enamel</option>
+                                
+                                    <option value="compressive properties">compressive properties</option>
+                                
+                                    <option value="microscale structural changes">microscale structural changes</option>
+                                
+                                    <option value="damage tolerance">damage tolerance</option>
+                                
+                                    <option value="structural geometry">structural geometry</option>
+                                
+                                    <option value="topological reasons behind the 'brick'">topological reasons behind the 'brick'</option>
+                                
+                                    <option value="drastic improvements in crack propagation resistance">drastic improvements in crack propagation resistance</option>
+                                
+                                    <option value="exponential increase in defect tolerance">exponential increase in defect tolerance</option>
+                                
+                                    <option value="significant changes in r-curve">significant changes in r-curve</option>
+                                
+                                    <option value="level-2">level-2</option>
+                                
+                                    <option value="singleturnahmolecule">singleturnahmolecule</option>
+                                
+                                    <option value="long imaging acquisitions">long imaging acquisitions</option>
+                                
+                                    <option value="tissue creep">tissue creep</option>
+                                
+                                    <option value="histological analysis">histological analysis</option>
+                                
+                                    <option value="micro-ct tests">micro-ct tests</option>
+                                
+                                    <option value="alpha-keratin fibrils">alpha-keratin fibrils</option>
+                                
+                                    <option value="a-layer">a-layer</option>
+                                
+                                    <option value="calamus">calamus</option>
+                                
+                                    <option value="horse hoof wall samples hydrated to 20%">horse hoof wall samples hydrated to 20%</option>
+                                
+                                    <option value="hooves">hooves</option>
+                                
+                                    <option value="nails">nails</option>
+                                
+                                    <option value="20% rh">20% rh</option>
+                                
+                                    <option value="40°c">40°c</option>
+                                
+                                    <option value="50% rh">50% rh</option>
+                                
+                                    <option value="60°c">60°c</option>
+                                
+                                    <option value="80°c">80°c</option>
+                                
+                                    <option value="di water">di water</option>
+                                
+                                    <option value="embedding medium">embedding medium</option>
+                                
+                                    <option value="fracture plane">fracture plane</option>
+                                
+                                    <option value="lead stain">lead stain</option>
+                                
+                                    <option value="osmium tetroxide stain">osmium tetroxide stain</option>
+                                
+                                    <option value="regular cleaning">regular cleaning</option>
+                                
+                                    <option value="strain rates(s)">strain rates(s)</option>
+                                
+                                    <option value="bovidae family animals">bovidae family animals</option>
+                                
+                                    <option value="keratin types">keratin types</option>
+                                
+                                    <option value="primates">primates</option>
+                                
+                                    <option value="some mammalian fingers and toes">some mammalian fingers and toes</option>
+                                
+                                    <option value="cc dimers">cc dimers</option>
+                                
+                                    <option value="coulomb bonds">coulomb bonds</option>
+                                
+                                    <option value="mechanical properties of intermediate filaments (ifs)">mechanical properties of intermediate filaments (ifs)</option>
+                                
+                                    <option value="intermolecular adhesion strength">intermolecular adhesion strength</option>
+                                
+                                    <option value="high pulling speeds">high pulling speeds</option>
+                                
+                                    <option value="expected outcome">expected outcome</option>
+                                
+                                    <option value="preliminary screening assays">preliminary screening assays</option>
+                                
+                                    <option value="unique structure">unique structure</option>
+                                
+                                    <option value="starting material">starting material</option>
+                                
+                                    <option value="precursor molecule">precursor molecule</option>
+                                
+                                    <option value="cross-coupling reaction">cross-coupling reaction</option>
+                                
+                                    <option value="deprotection">deprotection</option>
+                                
+                                    <option value="multiple steps">multiple steps</option>
+                                
+                                    <option value="desirable characteristics">desirable characteristics</option>
+                                
+                                    <option value="high biocompatibility">high biocompatibility</option>
+                                
+                                    <option value="high gas adsorption capacities">high gas adsorption capacities</option>
+                                
+                                    <option value="template deposition">template deposition</option>
+                                
+                                    <option value="normal distribution">normal distribution</option>
+                                
+                                    <option value="transmission electron microscopy">transmission electron microscopy</option>
+                                
+                                    <option value="nfc substrates">nfc substrates</option>
+                                
+                                    <option value="bridges">bridges</option>
+                                
+                                    <option value="hollow pockets">hollow pockets</option>
+                                
+                                    <option value="balance of forces">balance of forces</option>
+                                
+                                    <option value="intuitive understanding">intuitive understanding</option>
+                                
+                                    <option value="governing partial differential equations">governing partial differential equations</option>
+                                
+                                    <option value="material parameters">material parameters</option>
+                                
+                                    <option value="non-local microforce balance">non-local microforce balance</option>
+                                
+                                    <option value="theory">theory</option>
+                                
+                                    <option value="efa">efa</option>
+                                
+                                    <option value="energy dissipated during crack propagation">energy dissipated during crack propagation</option>
+                                
+                                    <option value="new surfaces">new surfaces</option>
+                                
+                                    <option value="apparent stiffness">apparent stiffness</option>
+                                
+                                    <option value="controlled structure formation">controlled structure formation</option>
+                                
+                                    <option value="bone tissue mechanical properties">bone tissue mechanical properties</option>
+                                
+                                    <option value="bone tissue compositions">bone tissue compositions</option>
+                                
+                                    <option value="decrease">decrease</option>
+                                
+                                    <option value="normal stiffness">normal stiffness</option>
+                                
+                                    <option value="global strength">global strength</option>
+                                
+                                    <option value="global toughness">global toughness</option>
+                                
+                                    <option value="en">en</option>
+                                
+                                    <option value="cellulose carrier">cellulose carrier</option>
+                                
+                                    <option value="creep tests">creep tests</option>
+                                
+                                    <option value="drop tower impact testing">drop tower impact testing</option>
+                                
+                                    <option value="liquid crystalline epoxy resins">liquid crystalline epoxy resins</option>
+                                
+                                    <option value="average repeat lengths">average repeat lengths</option>
+                                
+                                    <option value="protofilament">protofilament</option>
+                                
+                                    <option value="exhibited">exhibited</option>
+                                
+                                    <option value="optimal assembly conditions">optimal assembly conditions</option>
+                                
+                                    <option value="similar diameters">similar diameters</option>
+                                
+                                    <option value="filamentous structures">filamentous structures</option>
+                                
+                                    <option value="current settings">current settings</option>
+                                
+                                    <option value="double-sided carbon tape">double-sided carbon tape</option>
+                                
+                                    <option value="low voltage">low voltage</option>
+                                
+                                    <option value="mct detector">mct detector</option>
+                                
+                                    <option value="mechanical testing">mechanical testing</option>
+                                
+                                    <option value="nicolet spectrometer">nicolet spectrometer</option>
+                                
+                                    <option value="olympus szx9 microscope">olympus szx9 microscope</option>
+                                
+                                    <option value="optical polarization microscopy">optical polarization microscopy</option>
+                                
+                                    <option value="sample holder">sample holder</option>
+                                
+                                    <option value="organization">organization</option>
+                                
+                                    <option value="under different conditions">under different conditions</option>
+                                
+                                    <option value="enamel distribution patterns between teeth">enamel distribution patterns between teeth</option>
+                                
+                                    <option value="rheological behavior">rheological behavior</option>
+                                
+                                    <option value="actuation">actuation</option>
+                                
+                                    <option value="untwisting speed">untwisting speed</option>
+                                
+                                    <option value="fitting curve">fitting curve</option>
+                                
+                                    <option value="faster stress wave decay">faster stress wave decay</option>
+                                
+                                    <option value="eb">eb</option>
+                                
+                                    <option value="es">es</option>
+                                
+                                    <option value="hydrogenbonds">hydrogenbonds</option>
+                                
+                                    <option value="nativestate">nativestate</option>
+                                
+                                    <option value="transitionstate">transitionstate</option>
+                                
+                                    <option value="x1">x1</option>
+                                
+                                    <option value="xtr">xtr</option>
+                                
+                                    <option value="ε">ε</option>
+                                
+                                    <option value="φs">φs</option>
+                                
+                                    <option value="adding components">adding components</option>
+                                
+                                    <option value="mesoscale functionalization">mesoscale functionalization</option>
+                                
+                                    <option value="adding components to a motherboard">adding components to a motherboard</option>
+                                
+                                    <option value="adding functional nanomaterials/molecules">adding functional nanomaterials/molecules</option>
+                                
+                                    <option value="additional functions">additional functions</option>
+                                
+                                    <option value="bio waveguides">bio waveguides</option>
+                                
+                                    <option value="biocompatible materials for biomedical diagnosis">biocompatible materials for biomedical diagnosis</option>
+                                
+                                    <option value="biocompatible materials for consumer electronics">biocompatible materials for consumer electronics</option>
+                                
+                                    <option value="biocompatible materials for human-machine interfaces">biocompatible materials for human-machine interfaces</option>
+                                
+                                    <option value="bioimaging">bioimaging</option>
+                                
+                                    <option value="correlation length">correlation length</option>
+                                
+                                    <option value="gold clusters">gold clusters</option>
+                                
+                                    <option value="ideal properties">ideal properties</option>
+                                
+                                    <option value="one or two-photon fluorescent molecules">one or two-photon fluorescent molecules</option>
+                                
+                                    <option value="soft matter">soft matter</option>
+                                
+                                    <option value="white-light-emitting devices">white-light-emitting devices</option>
+                                
+                                    <option value="mesoscopic material assembly (mma)">mesoscopic material assembly (mma)</option>
+                                
+                                    <option value="modification of preformation and functions">modification of preformation and functions</option>
+                                
+                                    <option value="practical tool for producing functionalized biocompatible materials">practical tool for producing functionalized biocompatible materials</option>
+                                
+                                    <option value="weakening original properties">weakening original properties</option>
+                                
+                                    <option value="ordering/symmetry">ordering/symmetry</option>
+                                
+                                    <option value="strength of linkage or interactions">strength of linkage or interactions</option>
+                                
+                                    <option value="topology">topology</option>
+                                
+                                    <option value="hsaf">hsaf</option>
+                                
+                                    <option value="apoptosis">apoptosis</option>
+                                
+                                    <option value="crc cells">crc cells</option>
+                                
+                                    <option value="non-collagenous proteins">non-collagenous proteins</option>
+                                
+                                    <option value="fresh produce">fresh produce</option>
+                                
+                                    <option value="fully damaged">fully damaged</option>
+                                
+                                    <option value="undamaged">undamaged</option>
+                                
+                                    <option value="loss of integrity">loss of integrity</option>
+                                
+                                    <option value="reduction in mechanical properties">reduction in mechanical properties</option>
+                                
+                                    <option value="gradient damage theory">gradient damage theory</option>
+                                
+                                    <option value="light absorbance">light absorbance</option>
+                                
+                                    <option value="al resonators (light absorber)">al resonators (light absorber)</option>
+                                
+                                    <option value="continuous al layer (light absorber)">continuous al layer (light absorber)</option>
+                                
+                                    <option value="glass substrates (light absorber)">glass substrates (light absorber)</option>
+                                
+                                    <option value="sio2 dielectric spacers (light absorber)">sio2 dielectric spacers (light absorber)</option>
+                                
+                                    <option value="square-shape designs (light absorber)">square-shape designs (light absorber)</option>
+                                
+                                    <option value="strip-shape designs (light absorber)">strip-shape designs (light absorber)</option>
+                                
+                                    <option value="y-axis">y-axis</option>
+                                
+                                    <option value="resin">resin</option>
+                                
+                                    <option value="cure depth">cure depth</option>
+                                
+                                    <option value="cell wall microfibrils">cell wall microfibrils</option>
+                                
+                                    <option value="lattice sample">lattice sample</option>
+                                
+                                    <option value="strain definition">strain definition</option>
+                                
+                                    <option value="endodontic layer">endodontic layer</option>
+                                
+                                    <option value="elastic regime">elastic regime</option>
+                                
+                                    <option value="plastic regime">plastic regime</option>
+                                
+                                    <option value="polymer foams">polymer foams</option>
+                                
+                                    <option value="substrate stiffness">substrate stiffness</option>
+                                
+                                    <option value="material property calculation">material property calculation</option>
+                                
+                                    <option value="quantum mechanical method">quantum mechanical method</option>
+                                
+                                    <option value="pseudopotential">pseudopotential</option>
+                                
+                                    <option value="core electrons">core electrons</option>
+                                
+                                    <option value="valence electrons">valence electrons</option>
+                                
+                                    <option value="plane-wave basis set">plane-wave basis set</option>
+                                
+                                    <option value="feasibility">feasibility</option>
+                                
+                                    <option value="scientific community">scientific community</option>
+                                
+                                    <option value="development/production">development/production</option>
+                                
+                                    <option value="h-bn">h-bn</option>
+                                
+                                    <option value="si3n4">si3n4</option>
+                                
+                                    <option value="elastic-plastic interactions">elastic-plastic interactions</option>
+                                
+                                    <option value="gastropod nacreous layers">gastropod nacreous layers</option>
+                                
+                                    <option value="biomedical implants applications">biomedical implants applications</option>
+                                
+                                    <option value="cold working techniques">cold working techniques</option>
+                                
+                                    <option value="cold working">cold working</option>
+                                
+                                    <option value="energy harvesting applications">energy harvesting applications</option>
+                                
+                                    <option value="heat treatment">heat treatment</option>
+                                
+                                    <option value="joining techniques">joining techniques</option>
+                                
+                                    <option value="mechanical engineering research">mechanical engineering research</option>
+                                
+                                    <option value="nanotechnology applications">nanotechnology applications</option>
+                                
+                                    <option value="powder processing techniques">powder processing techniques</option>
+                                
+                                    <option value="thin film deposition techniques">thin film deposition techniques</option>
+                                
+                                    <option value="biomedical">biomedical</option>
+                                
+                                    <option value="control of gradient">control of gradient</option>
+                                
+                                    <option value="gradient properties">gradient properties</option>
+                                
+                                    <option value="liquid-solid processing">liquid-solid processing</option>
+                                
+                                    <option value="microstructure characterization">microstructure characterization</option>
+                                
+                                    <option value="nuclear engineering">nuclear engineering</option>
+                                
+                                    <option value="powder consolidation">powder consolidation</option>
+                                
+                                    <option value="reproducibility of properties">reproducibility of properties</option>
+                                
+                                    <option value="solid-state processing">solid-state processing</option>
+                                
+                                    <option value="thermal properties">thermal properties</option>
+                                
+                                    <option value="uniformity of microstructure">uniformity of microstructure</option>
+                                
+                                    <option value="heat treatment techniques">heat treatment techniques</option>
+                                
+                                    <option value="solid-state diffusion bonding">solid-state diffusion bonding</option>
+                                
+                                    <option value="mechanical engineering">mechanical engineering</option>
+                                
+                                    <option value="chemical vapor deposition (cvd)">chemical vapor deposition (cvd)</option>
+                                
+                                    <option value="load-bearing applications">load-bearing applications</option>
+                                
+                                    <option value="mechanical functions">mechanical functions</option>
+                                
+                                    <option value="structural functions">structural functions</option>
+                                
+                                    <option value="high-resolution structured materials">high-resolution structured materials</option>
+                                
+                                    <option value="hybrid nanomaterial synthesis">hybrid nanomaterial synthesis</option>
+                                
+                                    <option value="environmental implications">environmental implications</option>
+                                
+                                    <option value="safety concerns">safety concerns</option>
+                                
+                                    <option value="nanoscience">nanoscience</option>
+                                
+                                    <option value="advanced materials manufacturing techniques">advanced materials manufacturing techniques</option>
+                                
+                                    <option value="commercially available fiber prepregs">commercially available fiber prepregs</option>
+                                
+                                    <option value="microfili">microfili</option>
+                                
+                                    <option value="oscillation">oscillation</option>
+                                
+                                    <option value="biological abrasion-resistant materials">biological abrasion-resistant materials</option>
+                                
+                                    <option value="ejection rate">ejection rate</option>
+                                
+                                    <option value="rotational velocity">rotational velocity</option>
+                                
+                                    <option value="acoustic_rainbow_sensors">acoustic_rainbow_sensors</option>
+                                
+                                    <option value="metamaterials">metamaterials</option>
+                                
+                                    <option value="cochlea">cochlea</option>
+                                
+                                    <option value="sub_wavelength_active_acoustic_graded_resonators">sub_wavelength_active_acoustic_graded_resonators</option>
+                                
+                                    <option value="spiral_shape">spiral_shape</option>
+                                
+                                    <option value="frequency_attenuation_loss">frequency_attenuation_loss</option>
+                                
+                                    <option value="tonotopic_organization">tonotopic_organization</option>
+                                
+                                    <option value="cochlea's_design">cochlea's_design</option>
+                                
+                                    <option value="safe and reliable structures">safe and reliable structures</option>
+                                
+                                    <option value="left-handed helix">left-handed helix</option>
+                                
+                                    <option value="morphological transformations">morphological transformations</option>
+                                
+                                    <option value="right-handed helix formation">right-handed helix formation</option>
+                                
+                                    <option value="rolls">rolls</option>
+                                
+                                    <option value="shape transformation">shape transformation</option>
+                                
+                                    <option value="stripe orientation">stripe orientation</option>
+                                
+                                    <option value="hydration-induced deformation">hydration-induced deformation</option>
+                                
+                                    <option value="absorbing elements">absorbing elements</option>
+                                
+                                    <option value="artificial photonic materials">artificial photonic materials</option>
+                                
+                                    <option value="integration of structural coloration and pigment absorption">integration of structural coloration and pigment absorption</option>
+                                
+                                    <option value="cholesteric liquid crystals">cholesteric liquid crystals</option>
+                                
+                                    <option value="bioinspired materials">bioinspired materials</option>
+                                
+                                    <option value="helicoidal structures">helicoidal structures</option>
+                                
+                                    <option value="angle-dependent structural coloration">angle-dependent structural coloration</option>
+                                
+                                    <option value="birefringent layer">birefringent layer</option>
+                                
+                                    <option value="helicoidal architectures">helicoidal architectures</option>
+                                
+                                    <option value="single-handed circularly polarized light">single-handed circularly polarized light</option>
+                                
+                                    <option value="lattice parameters">lattice parameters</option>
+                                
+                                    <option value="orthorhombic symmetry">orthorhombic symmetry</option>
+                                
+                                    <option value="reconstituted silk fibroin">reconstituted silk fibroin</option>
+                                
+                                    <option value="exoscutum">exoscutum</option>
+                                
+                                    <option value="zeta potential">zeta potential</option>
+                                
+                                    <option value="double twisted photonic crystal structure">double twisted photonic crystal structure</option>
+                                
+                                    <option value="computer simulation">computer simulation</option>
+                                
+                                    <option value="environmental friendliness">environmental friendliness</option>
+                                
+                                    <option value="inherent efficiency">inherent efficiency</option>
+                                
+                                    <option value="natural polymeric composites">natural polymeric composites</option>
+                                
+                                    <option value="distinct microstructures, chemical gradients, and mechanical properties">distinct microstructures, chemical gradients, and mechanical properties</option>
+                                
+                                    <option value="alginatepegda">alginatepegda</option>
+                                
+                                    <option value="alginatepegdahydrogels">alginatepegdahydrogels</option>
+                                
+                                    <option value="directinkwritingprintingtechniques">directinkwritingprintingtechniques</option>
+                                
+                                    <option value="hmscs">hmscs</option>
+                                
+                                    <option value="superiormechanicalproperties">superiormechanicalproperties</option>
+                                
+                                    <option value="highviability">highviability</option>
+                                
+                                    <option value="volumefractions">volumefractions</option>
+                                
+                                    <option value="reducedmodulus">reducedmodulus</option>
+                                
+                                    <option value="nanoinindentation">nanoinindentation</option>
+                                
+                                    <option value="extraordinary toughness">extraordinary toughness</option>
+                                
+                                    <option value="bovid animals">bovid animals</option>
+                                
+                                    <option value="buffalo">buffalo</option>
+                                
+                                    <option value="cattle">cattle</option>
+                                
+                                    <option value="flattened keratinocytes">flattened keratinocytes</option>
+                                
+                                    <option value="gazelle">gazelle</option>
+                                
+                                    <option value="sheep">sheep</option>
+                                
+                                    <option value="waterbuck">waterbuck</option>
+                                
+                                    <option value="planes of intertubular lamellae">planes of intertubular lamellae</option>
+                                
+                                    <option value="surrounding tissue">surrounding tissue</option>
+                                
+                                    <option value="defense">defense</option>
+                                
+                                    <option value="herringbone structure">herringbone structure</option>
+                                
+                                    <option value="impact along the radial direction">impact along the radial direction</option>
+                                
+                                    <option value="impact loads">impact loads</option>
+                                
+                                    <option value="impact loading">impact loading</option>
+                                
+                                    <option value="self-recovery">self-recovery</option>
+                                
+                                    <option value="tubule collapse">tubule collapse</option>
+                                
+                                    <option value="weapons">weapons</option>
+                                
+                                    <option value="mountain goat">mountain goat</option>
+                                
+                                    <option value="interlayer thickness">interlayer thickness</option>
+                                
+                                    <option value="mohr's circles">mohr's circles</option>
+                                
+                                    <option value="crack front">crack front</option>
+                                
+                                    <option value="remote applied loads">remote applied loads</option>
+                                
+                                    <option value="twisted angle of the crack">twisted angle of the crack</option>
+                                
+                                    <option value="silk inverse opals">silk inverse opals</option>
+                                
+                                    <option value="mollusk shells as 1d photonic crystals">mollusk shells as 1d photonic crystals</option>
+                                
+                                    <option value="highly-hierarchical architectures">highly-hierarchical architectures</option>
+                                
+                                    <option value="outstanding mechanical performances">outstanding mechanical performances</option>
+                                
+                                    <option value="lower elastic modulus">lower elastic modulus</option>
+                                
+                                    <option value="ocean waves">ocean waves</option>
+                                
+                                    <option value="predator impacts">predator impacts</option>
+                                
+                                    <option value="photonic crystals for controlled light propagation">photonic crystals for controlled light propagation</option>
+                                
+                                    <option value="photonic crystals">photonic crystals</option>
+                                
+                                    <option value="refractive index">refractive index</option>
+                                
+                                    <option value="drastic change">drastic change</option>
+                                
+                                    <option value="stretchable sensors">stretchable sensors</option>
+                                
+                                    <option value="conventional glass ph sensors">conventional glass ph sensors</option>
+                                
+                                    <option value="earlywood">earlywood</option>
+                                
+                                    <option value="spruce wood">spruce wood</option>
+                                
+                                    <option value="farruggia and perre (2000)">farruggia and perre (2000)</option>
+                                
+                                    <option value="neuhaus (1981)">neuhaus (1981)</option>
+                                
+                                    <option value="persson (2000)">persson (2000)</option>
+                                
+                                    <option value="rafsanjani et al. (2012)">rafsanjani et al. (2012)</option>
+                                
+                                    <option value="watanabe et al. (2000)">watanabe et al. (2000)</option>
+                                
+                                    <option value="eshelby tensor">eshelby tensor</option>
+                                
+                                    <option value="fourth-order tensor">fourth-order tensor</option>
+                                
+                                    <option value="elongated cells">elongated cells</option>
+                                
+                                    <option value="cell migration">cell migration</option>
+                                
+                                    <option value="synthetic biomaterials">synthetic biomaterials</option>
+                                
+                                    <option value="grain refinement">grain refinement</option>
+                                
+                                    <option value="lipus">lipus</option>
+                                
+                                    <option value="nanopatterned grids">nanopatterned grids</option>
+                                
+                                    <option value="concentration of crosslinking agent">concentration of crosslinking agent</option>
+                                
+                                    <option value="net charge of polyelectrolyte">net charge of polyelectrolyte</option>
+                                
+                                    <option value="physical entanglement">physical entanglement</option>
+                                
+                                    <option value="higher polymerization temperatures">higher polymerization temperatures</option>
+                                
+                                    <option value="modified curing process">modified curing process</option>
+                                
+                                    <option value="reversibility of swelling">reversibility of swelling</option>
+                                
+                                    <option value="swelling degree">swelling degree</option>
+                                
+                                    <option value="swelling kinetics">swelling kinetics</option>
+                                
+                                    <option value="ald-assisted in situ core-shell nanostructure synthesis">ald-assisted in situ core-shell nanostructure synthesis</option>
+                                
+                                    <option value="tmv-nickel/metal oxide core-shell nanostructures">tmv-nickel/metal oxide core-shell nanostructures</option>
+                                
+                                    <option value="high-temperature processing">high-temperature processing</option>
+                                
+                                    <option value="nickel-coated tmv">nickel-coated tmv</option>
+                                
+                                    <option value="virus-templated materials">virus-templated materials</option>
+                                
+                                    <option value="wafer-scale manufacturing">wafer-scale manufacturing</option>
+                                
+                                    <option value="alumina and titania coatings">alumina and titania coatings</option>
+                                
+                                    <option value="parameter tuning">parameter tuning</option>
+                                
+                                    <option value="gold metal layer">gold metal layer</option>
+                                
+                                    <option value="titanium metal layer">titanium metal layer</option>
+                                
+                                    <option value="uniform deposition">uniform deposition</option>
+                                
+                                    <option value="mineralized collagen">mineralized collagen</option>
+                                
+                                    <option value="e">e</option>
+                                
+                                    <option value="cover">cover</option>
+                                
+                                    <option value="prevents cracks">prevents cracks</option>
+                                
+                                    <option value="significant swelling">significant swelling</option>
+                                
+                                    <option value="initial moduli">initial moduli</option>
+                                
+                                    <option value="overlaps">overlaps</option>
+                                
+                                    <option value="fiber geometry">fiber geometry</option>
+                                
+                                    <option value="in-plane topology">in-plane topology</option>
+                                
+                                    <option value="simulation size">simulation size</option>
+                                
+                                    <option value="structural randomness">structural randomness</option>
+                                
+                                    <option value="enhanced fracture toughening">enhanced fracture toughening</option>
+                                
+                                    <option value="interlamellar shearing (is1)">interlamellar shearing (is1)</option>
+                                
+                                    <option value="pangolin scales (pf1)">pangolin scales (pf1)</option>
+                                
+                                    <option value="t sliding (ts1)">t sliding (ts1)</option>
+                                
+                                    <option value="median strength">median strength</option>
+                                
+                                    <option value="median toughness">median toughness</option>
+                                
+                                    <option value="resiliency to defects">resiliency to defects</option>
+                                
+                                    <option value="size dependence">size dependence</option>
+                                
+                                    <option value="brittle failure modes">brittle failure modes</option>
+                                
+                                    <option value="quasibrittle failure modes">quasibrittle failure modes</option>
+                                
+                                    <option value="small strain behavior">small strain behavior</option>
+                                
+                                    <option value="bone-like materials">bone-like materials</option>
+                                
+                                    <option value="exceptional adhesion capabilities">exceptional adhesion capabilities</option>
+                                
+                                    <option value="cuticle pore holes">cuticle pore holes</option>
+                                
+                                    <option value="distinctly curved shape">distinctly curved shape</option>
+                                
+                                    <option value="substance delivery">substance delivery</option>
+                                
+                                    <option value="high flexibility">high flexibility</option>
+                                
+                                    <option value="prey predation">prey predation</option>
+                                
+                                    <option value="crack nucleation">crack nucleation</option>
+                                
+                                    <option value="bulkmodulus">bulkmodulus</option>
+                                
+                                    <option value="bulk stiffness">bulk stiffness</option>
+                                
+                                    <option value="protein domains">protein domains</option>
+                                
+                                    <option value="results obtained">results obtained</option>
+                                
+                                    <option value="first principles quantum mechanical calculations">first principles quantum mechanical calculations</option>
+                                
+                                    <option value="behavior of single crystalline aragonite under tensile loading">behavior of single crystalline aragonite under tensile loading</option>
+                                
+                                    <option value="organic layers">organic layers</option>
+                                
+                                    <option value="esterified carbon nanotube yarn">esterified carbon nanotube yarn</option>
+                                
+                                    <option value="dragon skin armor">dragon skin armor</option>
+                                
+                                    <option value="scale armor">scale armor</option>
+                                
+                                    <option value="persistent length">persistent length</option>
+                                
+                                    <option value="crystal morphology and kinetics">crystal morphology and kinetics</option>
+                                
+                                    <option value="mechanical energy">mechanical energy</option>
+                                
+                                    <option value="polymer ligands">polymer ligands</option>
+                                
+                                    <option value="rapid transport">rapid transport</option>
+                                
+                                    <option value="dendrimer-encapsulated nanoparticles">dendrimer-encapsulated nanoparticles</option>
+                                
+                                    <option value="hydrogenation reactions">hydrogenation reactions</option>
+                                
+                                    <option value="monodispersity">monodispersity</option>
+                                
+                                    <option value="precise catalysis">precise catalysis</option>
+                                
+                                    <option value="small molecules">small molecules</option>
+                                
+                                    <option value="globular proteins">globular proteins</option>
+                                
+                                    <option value="precise biological functions">precise biological functions</option>
+                                
+                                    <option value="pristine metallic nanoparticles">pristine metallic nanoparticles</option>
+                                
+                                    <option value="effective surface area">effective surface area</option>
+                                
+                                    <option value="solubility">solubility</option>
+                                
+                                    <option value="naphthalene anhydride">naphthalene anhydride</option>
+                                
+                                    <option value="adaptability">adaptability</option>
+                                
+                                    <option value="carapace">carapace</option>
+                                
+                                    <option value="micrometer-thick-fibers">micrometer-thick-fibers</option>
+                                
+                                    <option value="bone lamella">bone lamella</option>
+                                
+                                    <option value="hierarchical structures">hierarchical structures</option>
+                                
+                                    <option value="hydroxyapatite-nano-platelets">hydroxyapatite-nano-platelets</option>
+                                
+                                    <option value="type-i-collagen-helices">type-i-collagen-helices</option>
+                                
+                                    <option value="optimal-mechanical-properties">optimal-mechanical-properties</option>
+                                
+                                    <option value="cavities">cavities</option>
+                                
+                                    <option value="afm experiments">afm experiments</option>
+                                
+                                    <option value="reaxff force field">reaxff force field</option>
+                                
+                                    <option value="daniel et al.">daniel et al.</option>
+                                
+                                    <option value="simply supported">simply supported</option>
+                                
+                                    <option value="jiang and vecchio">jiang and vecchio</option>
+                                
+                                    <option value="low velocity impact testing">low velocity impact testing</option>
+                                
+                                    <option value="critical strain rate">critical strain rate</option>
+                                
+                                    <option value="cross-sectional area">cross-sectional area</option>
+                                
+                                    <option value="dynamic three-point bending">dynamic three-point bending</option>
+                                
+                                    <option value="ilibrium">ilibrium</option>
+                                
+                                    <option value="load cell">load cell</option>
+                                
+                                    <option value="volume fraction of macrofiber">volume fraction of macrofiber</option>
+                                
+                                    <option value="spray paint">spray paint</option>
+                                
+                                    <option value="total load applied">total load applied</option>
+                                
+                                    <option value="vic-2d software">vic-2d software</option>
+                                
+                                    <option value="ravichandran and subhash">ravichandran and subhash</option>
+                                
+                                    <option value="each microfibril">each microfibril</option>
+                                
+                                    <option value="measuring mechanical properties">measuring mechanical properties</option>
+                                
+                                    <option value="traditional hydrogels">traditional hydrogels</option>
+                                
+                                    <option value="lubricant coatings for medical devices (lubricant coatings for indwelling devices)">lubricant coatings for medical devices (lubricant coatings for indwelling devices)</option>
+                                
+                                    <option value="conductive nanocomposite hydrogels">conductive nanocomposite hydrogels</option>
+                                
+                                    <option value="responsive nanocomposite hydrogels">responsive nanocomposite hydrogels</option>
+                                
+                                    <option value="transparent nanocomposite hydrogels">transparent nanocomposite hydrogels</option>
+                                
+                                    <option value="non-conductive hydrogels">non-conductive hydrogels</option>
+                                
+                                    <option value="antibacterial properties">antibacterial properties</option>
+                                
+                                    <option value="bonding strength">bonding strength</option>
+                                
+                                    <option value="decreased surface friction">decreased surface friction</option>
+                                
+                                    <option value="swelling properties (swelling behavior)">swelling properties (swelling behavior)</option>
+                                
+                                    <option value="tunable cell adhesion abilities">tunable cell adhesion abilities</option>
+                                
+                                    <option value="plate/shell mechanics">plate/shell mechanics</option>
+                                
+                                    <option value="timoshenko and woinowsky-krieger">timoshenko and woinowsky-krieger</option>
+                                
+                                    <option value="atomic points">atomic points</option>
+                                
+                                    <option value="continuum scale">continuum scale</option>
+                                
+                                    <option value="large biological domains">large biological domains</option>
+                                
+                                    <option value="microvessels">microvessels</option>
+                                
+                                    <option value="interior">interior</option>
+                                
+                                    <option value="large-scale ps">large-scale ps</option>
+                                
+                                    <option value="small-scale ps">small-scale ps</option>
+                                
+                                    <option value="template-free synthesis">template-free synthesis</option>
+                                
+                                    <option value="adjustable morphologies">adjustable morphologies</option>
+                                
+                                    <option value="size-tunable porous carbon nanospheres">size-tunable porous carbon nanospheres</option>
+                                
+                                    <option value="catalysts">catalysts</option>
+                                
+                                    <option value="monomers">monomers</option>
+                                
+                                    <option value="naphthalene">naphthalene</option>
+                                
+                                    <option value="spherical polyphenylenes (pps)">spherical polyphenylenes (pps)</option>
+                                
+                                    <option value="pyrene">pyrene</option>
+                                
+                                    <option value="foam in toucan beak">foam in toucan beak</option>
+                                
+                                    <option value="go-polymer nanocomposes">go-polymer nanocomposes</option>
+                                
+                                    <option value="water oxidation">water oxidation</option>
+                                
+                                    <option value="larger systems">larger systems</option>
+                                
+                                    <option value="replication">replication</option>
+                                
+                                    <option value="elastomeric master mold">elastomeric master mold</option>
+                                
+                                    <option value="optics">optics</option>
+                                
+                                    <option value="micropillar pdms substrates">micropillar pdms substrates</option>
+                                
+                                    <option value="elastomeric stamp">elastomeric stamp</option>
+                                
+                                    <option value="optical devices">optical devices</option>
+                                
+                                    <option value="dynamic network crystallization">dynamic network crystallization</option>
+                                
+                                    <option value="elastomeric properties">elastomeric properties</option>
+                                
+                                    <option value="good thermal and mechanical properties">good thermal and mechanical properties</option>
+                                
+                                    <option value="hydrophilic copolymers">hydrophilic copolymers</option>
+                                
+                                    <option value="self-propagating nanocomposites">self-propagating nanocomposites</option>
+                                
+                                    <option value="poly[(ethylene glycol methyl ether methacrylate)-co-n,n-dimethylacrylamide]">poly[(ethylene glycol methyl ether methacrylate)-co-n,n-dimethylacrylamide]</option>
+                                
+                                    <option value="bioactive photoresists">bioactive photoresists</option>
+                                
+                                    <option value="methacrylate">methacrylate</option>
+                                
+                                    <option value="n-vinyl-2-pyrrolidone">n-vinyl-2-pyrrolidone</option>
+                                
+                                    <option value="specific functionalities">specific functionalities</option>
+                                
+                                    <option value="hydrophilic group">hydrophilic group</option>
+                                
+                                    <option value="physical crosslinking agent">physical crosslinking agent</option>
+                                
+                                    <option value="in vivo degradation time">in vivo degradation time</option>
+                                
+                                    <option value="microscale extrusion writing">microscale extrusion writing</option>
+                                
+                                    <option value="dolphins">dolphins</option>
+                                
+                                    <option value="prey_location">prey_location</option>
+                                
+                                    <option value="odontocetes">odontocetes</option>
+                                
+                                    <option value="whales">whales</option>
+                                
+                                    <option value="standard testing protocols">standard testing protocols</option>
+                                
+                                    <option value="bismuth germinate (bgo)">bismuth germinate (bgo)</option>
+                                
+                                    <option value="shape-changing textile strategies">shape-changing textile strategies</option>
+                                
+                                    <option value="nn hydrogels">nn hydrogels</option>
+                                
+                                    <option value="outer segments">outer segments</option>
+                                
+                                    <option value="peeling">peeling</option>
+                                
+                                    <option value="mechanical abradients">mechanical abradients</option>
+                                
+                                    <option value="coating process">coating process</option>
+                                
+                                    <option value="demonstrate">demonstrate</option>
+                                
+                                    <option value="antibacterial features">antibacterial features</option>
+                                
+                                    <option value="binding sites for cell membrane receptors">binding sites for cell membrane receptors</option>
+                                
+                                    <option value="cell-surface interactions">cell-surface interactions</option>
+                                
+                                    <option value="superhydrophobic biological materials">superhydrophobic biological materials</option>
+                                
+                                    <option value="gel methods">gel methods</option>
+                                
+                                    <option value="crystal growth properties">crystal growth properties</option>
+                                
+                                    <option value="diffusion rates">diffusion rates</option>
+                                
+                                    <option value="local supersaturation">local supersaturation</option>
+                                
+                                    <option value="crystal growth techniques">crystal growth techniques</option>
+                                
+                                    <option value="solution techniques">solution techniques</option>
+                                
+                                    <option value="crystal harvesting">crystal harvesting</option>
+                                
+                                    <option value="harvesting">harvesting</option>
+                                
+                                    <option value="crystal formation">crystal formation</option>
+                                
+                                    <option value="mineralized tissue matrix environment">mineralized tissue matrix environment</option>
+                                
+                                    <option value="nano-mechanics">nano-mechanics</option>
+                                
+                                    <option value="afm studies">afm studies</option>
+                                
+                                    <option value="classical growth mode">classical growth mode</option>
+                                
+                                    <option value="non-classical growth mode">non-classical growth mode</option>
+                                
+                                    <option value="nanogranular organization">nanogranular organization</option>
+                                
+                                    <option value="non-classical growth mechanism">non-classical growth mechanism</option>
+                                
+                                    <option value="ua">ua</option>
+                                
+                                    <option value="aqua regia">aqua regia</option>
+                                
+                                    <option value="calcium chloride solution">calcium chloride solution</option>
+                                
+                                    <option value="mg-doped apatite nanocrystals">mg-doped apatite nanocrystals</option>
+                                
+                                    <option value="twisted area">twisted area</option>
+                                
+                                    <option value="bone regeneration applications">bone regeneration applications</option>
+                                
+                                    <option value="bone-like tissues">bone-like tissues</option>
+                                
+                                    <option value="drug encapsulation">drug encapsulation</option>
+                                
+                                    <option value="drug release">drug release</option>
+                                
+                                    <option value="low toxicity">low toxicity</option>
+                                
+                                    <option value="contact with rigid sphere representing tooth/claw or falling object.">contact with rigid sphere representing tooth/claw or falling object.</option>
+                                
+                                    <option value="dynamics">dynamics</option>
+                                
+                                    <option value="experiment">experiment</option>
+                                
+                                    <option value="greater adhesion strength">greater adhesion strength</option>
+                                
+                                    <option value="accumulated elastic energy">accumulated elastic energy</option>
+                                
+                                    <option value="corresponding branches">corresponding branches</option>
+                                
+                                    <option value="external work">external work</option>
+                                
+                                    <option value="fibril failure">fibril failure</option>
+                                
+                                    <option value="monotonically increasing variable">monotonically increasing variable</option>
+                                
+                                    <option value="scale-invariant modeling">scale-invariant modeling</option>
+                                
+                                    <option value="softening behavior">softening behavior</option>
+                                
+                                    <option value="fu-yun zhu">fu-yun zhu</option>
+                                
+                                    <option value="kh560">kh560</option>
+                                
+                                    <option value="top-down approaches">top-down approaches</option>
+                                
+                                    <option value="functional groups (-oh, c=o)">functional groups (-oh, c=o)</option>
+                                
+                                    <option value="stratified porous structure">stratified porous structure</option>
+                                
+                                    <option value="uniform mesopores">uniform mesopores</option>
+                                
+                                    <option value="bet">bet</option>
+                                
+                                    <option value="crab shell waste">crab shell waste</option>
+                                
+                                    <option value="p-xylene">p-xylene</option>
+                                
+                                    <option value="adsorption">adsorption</option>
+                                
+                                    <option value="equilibrium capacity">equilibrium capacity</option>
+                                
+                                    <option value="initial concentration">initial concentration</option>
+                                
+                                    <option value="removal efficiency">removal efficiency</option>
+                                
+                                    <option value="publication">publication</option>
+                                
+                                    <option value="heterogeneity">heterogeneity</option>
+                                
+                                    <option value="biomimetic 3d structures">biomimetic 3d structures</option>
+                                
+                                    <option value="morphological features">morphological features</option>
+                                
+                                    <option value="spatial positioning of cells">spatial positioning of cells</option>
+                                
+                                    <option value="traditional 2d cultures">traditional 2d cultures</option>
+                                
+                                    <option value="advantages">advantages</option>
+                                
+                                    <option value="limitations">limitations</option>
+                                
+                                    <option value="biomaterials design">biomaterials design</option>
+                                
+                                    <option value="boerneke et al.">boerneke et al.</option>
+                                
+                                    <option value="controllable self-assembly towards rna nanotriangles">controllable self-assembly towards rna nanotriangles</option>
+                                
+                                    <option value="base pairing">base pairing</option>
+                                
+                                    <option value="functional rna nanostructures">functional rna nanostructures</option>
+                                
+                                    <option value="pathogenic dipeptides">pathogenic dipeptides</option>
+                                
+                                    <option value="stress granules">stress granules</option>
+                                
+                                    <option value="nanorods">nanorods</option>
+                                
+                                    <option value="nanowires">nanowires</option>
+                                
+                                    <option value="qds">qds</option>
+                                
+                                    <option value="enr">enr</option>
+                                
+                                    <option value="fe3+ metal ions">fe3+ metal ions</option>
+                                
+                                    <option value="metallosupramolecular cross-links">metallosupramolecular cross-links</option>
+                                
+                                    <option value="shape-fixation mechanisms">shape-fixation mechanisms</option>
+                                
+                                    <option value="tg">tg</option>
+                                
+                                    <option value="high resilience">high resilience</option>
+                                
+                                    <option value="insect cuticle regions">insect cuticle regions</option>
+                                
+                                    <option value="polypeptide structure">polypeptide structure</option>
+                                
+                                    <option value="synthetic rubber materials">synthetic rubber materials</option>
+                                
+                                    <option value="resilin-inspired materials">resilin-inspired materials</option>
+                                
+                                    <option value="reversible bonds">reversible bonds</option>
+                                
+                                    <option value="vpr">vpr</option>
+                                
+                                    <option value="zn2+ cations">zn2+ cations</option>
+                                
+                                    <option value="long fibers">long fibers</option>
+                                
+                                    <option value="short fibers">short fibers</option>
+                                
+                                    <option value="cohesiveinterface">cohesiveinterface</option>
+                                
+                                    <option value="helmholtzfreeenergy">helmholtzfreeenergy</option>
+                                
+                                    <option value="johnsoncookconstitutivemodel">johnsoncookconstitutivemodel</option>
+                                
+                                    <option value="constitutivemodel">constitutivemodel</option>
+                                
+                                    <option value="f">f</option>
+                                
+                                    <option value="rhamphotheca region">rhamphotheca region</option>
+                                
+                                    <option value="oscillation amplitude">oscillation amplitude</option>
+                                
+                                    <option value="p">p</option>
+                                
+                                    <option value="weighting coefficients">weighting coefficients</option>
+                                
+                                    <option value="collagen composite materials">collagen composite materials</option>
+                                
+                                    <option value="chemical cross-linking">chemical cross-linking</option>
+                                
+                                    <option value="collagen molecular weight">collagen molecular weight</option>
+                                
+                                    <option value="denaturation">denaturation</option>
+                                
+                                    <option value="emulsifying methods">emulsifying methods</option>
+                                
+                                    <option value="neutral ph">neutral ph</option>
+                                
+                                    <option value="osteoblast growth">osteoblast growth</option>
+                                
+                                    <option value="resistance to enzymes">resistance to enzymes</option>
+                                
+                                    <option value="thermostability">thermostability</option>
+                                
+                                    <option value="surface engineering applications">surface engineering applications</option>
+                                
+                                    <option value="femtosecond lasers">femtosecond lasers</option>
+                                
+                                    <option value="laser-based surface processing methods">laser-based surface processing methods</option>
+                                
+                                    <option value="emerging laser processing techniques">emerging laser processing techniques</option>
+                                
+                                    <option value="high repetition rate fs laser systems">high repetition rate fs laser systems</option>
+                                
+                                    <option value="nanoscale fabrication">nanoscale fabrication</option>
+                                
+                                    <option value="conventional grain boundaries">conventional grain boundaries</option>
+                                
+                                    <option value="grain boundary structure">grain boundary structure</option>
+                                
+                                    <option value="stacking faults">stacking faults</option>
+                                
+                                    <option value="twin boundaries">twin boundaries</option>
+                                
+                                    <option value="(β)-chitin">(β)-chitin</option>
+                                
+                                    <option value="amorphous intercrystalline phase">amorphous intercrystalline phase</option>
+                                
+                                    <option value="hydroxyapatite (hap)">hydroxyapatite (hap)</option>
+                                
+                                    <option value="living bacteria">living bacteria</option>
+                                
+                                    <option value="mg(ii)">mg(ii)</option>
+                                
+                                    <option value="mica microplatelets">mica microplatelets</option>
+                                
+                                    <option value="nanoplatelets">nanoplatelets</option>
+                                
+                                    <option value="second level of hierarchical sculpturing">second level of hierarchical sculpturing</option>
+                                
+                                    <option value="paa">paa</option>
+                                
+                                    <option value="nitpcd">nitpcd</option>
+                                
+                                    <option value="c1">c1</option>
+                                
+                                    <option value="force">force</option>
+                                
+                                    <option value="h">h</option>
+                                
+                                    <option value="bf">bf</option>
+                                
+                                    <option value="fu">fu</option>
+                                
+                                    <option value="ot">ot</option>
+                                
+                                    <option value="ye">ye</option>
+                                
+                                    <option value="i">i</option>
+                                
+                                    <option value="interrod paths">interrod paths</option>
+                                
+                                    <option value="o">o</option>
+                                
+                                    <option value="t">t</option>
+                                
+                                    <option value="u">u</option>
+                                
+                                    <option value="released kinetic energy">released kinetic energy</option>
+                                
+                                    <option value="v">v</option>
+                                
+                                    <option value="w">w</option>
+                                
+                                    <option value="x">x</option>
+                                
+                                    <option value="ds">ds</option>
+                                
+                                    <option value="y">y</option>
+                                
+                                    <option value="z_direction">z_direction</option>
+                                
+                                    <option value="channel-like architecture">channel-like architecture</option>
+                                
+                                    <option value="conventional porous sintered ha">conventional porous sintered ha</option>
+                                
+                                    <option value="diffuse micro and nano-porosity">diffuse micro and nano-porosity</option>
+                                
+                                    <option value="porous ha">porous ha</option>
+                                
+                                    <option value="radial parenchyma">radial parenchyma</option>
+                                
+                                    <option value="smaller side channels">smaller side channels</option>
+                                
+                                    <option value="thin lamellar nanopses">thin lamellar nanopses</option>
+                                
+                                    <option value="wood-like architecture">wood-like architecture</option>
+                                
+                                    <option value="conventional_grain_coalescence">conventional_grain_coalescence</option>
+                                
+                                    <option value="fibrous_materials">fibrous_materials</option>
+                                
+                                    <option value="shear stresses">shear stresses</option>
+                                
+                                    <option value="connection_matrix">connection_matrix</option>
+                                
+                                    <option value="rigid_bodies">rigid_bodies</option>
+                                
+                                    <option value="catastrophic destruction">catastrophic destruction</option>
+                                
+                                    <option value="laminated pressure">laminated pressure</option>
+                                
+                                    <option value="longitudinal cracks">longitudinal cracks</option>
+                                
+                                    <option value="transverse cracks">transverse cracks</option>
+                                
+                                    <option value="nh3">nh3</option>
+                                
+                                    <option value="stress decay">stress decay</option>
+                                
+                                    <option value="heparin-bonded composite nanofibers">heparin-bonded composite nanofibers</option>
+                                
+                                    <option value="airways">airways</option>
+                                
+                                    <option value="differentiation">differentiation</option>
+                                
+                                    <option value="engineered tissues">engineered tissues</option>
+                                
+                                    <option value="microenvironments">microenvironments</option>
+                                
+                                    <option value="tubular structures">tubular structures</option>
+                                
+                                    <option value="higher animals">higher animals</option>
+                                
+                                    <option value="drawing">drawing</option>
+                                
+                                    <option value="protein-based materials">protein-based materials</option>
+                                
+                                    <option value="mechanical properties enhancement">mechanical properties enhancement</option>
+                                
+                                    <option value="coarse-grain mesoscale modeling">coarse-grain mesoscale modeling</option>
+                                
+                                    <option value="continuum mechanics">continuum mechanics</option>
+                                
+                                    <option value="experimentally observed values">experimentally observed values</option>
+                                
+                                    <option value="linear elasticity">linear elasticity</option>
+                                
+                                    <option value="softening behavior during β-sheet nanocrystal failure">softening behavior during β-sheet nanocrystal failure</option>
+                                
+                                    <option value="stiffening behavior due to β-sheet nanocrystal alignment">stiffening behavior due to β-sheet nanocrystal alignment</option>
+                                
+                                    <option value="unfolding of amorphous domains">unfolding of amorphous domains</option>
+                                
+                                    <option value="nebila cluyes dragline silk">nebila cluyes dragline silk</option>
+                                
+                                    <option value="biophysical processes">biophysical processes</option>
+                                
+                                    <option value="collagenous tissues">collagenous tissues</option>
+                                
+                                    <option value="cytoskeleton networks">cytoskeleton networks</option>
+                                
+                                    <option value="h-bond rupture">h-bond rupture</option>
+                                
+                                    <option value="longer beta-strands">longer beta-strands</option>
+                                
+                                    <option value="shear loading">shear loading</option>
+                                
+                                    <option value="keratin molecules">keratin molecules</option>
+                                
+                                    <option value="protein structure functional groups">protein structure functional groups</option>
+                                
+                                    <option value="heavy chain">heavy chain</option>
+                                
+                                    <option value="redox microenvironments">redox microenvironments</option>
+                                
+                                    <option value="directed self-assembly">directed self-assembly</option>
+                                
+                                    <option value="hydrophobic effects">hydrophobic effects</option>
+                                
+                                    <option value="steric and depletion forces">steric and depletion forces</option>
+                                
+                                    <option value="nanoscale intermolecular interactions">nanoscale intermolecular interactions</option>
+                                
+                                    <option value="anisotropic composites">anisotropic composites</option>
+                                
+                                    <option value="enhanced mechanical performance">enhanced mechanical performance</option>
+                                
+                                    <option value="structure similar to natural bone">structure similar to natural bone</option>
+                                
+                                    <option value="bone construction">bone construction</option>
+                                
+                                    <option value="enhances osteoclast activity">enhances osteoclast activity</option>
+                                
+                                    <option value="osteoblast calcification">osteoblast calcification</option>
+                                
+                                    <option value="osteoblast proliferation">osteoblast proliferation</option>
+                                
+                                    <option value="ha nucleation">ha nucleation</option>
+                                
+                                    <option value="optimized solution">optimized solution</option>
+                                
+                                    <option value="wolff's law">wolff's law</option>
+                                
+                                    <option value="low resolution uv-based stereolithography">low resolution uv-based stereolithography</option>
+                                
+                                    <option value="in vitro cell experiments">in vitro cell experiments</option>
+                                
+                                    <option value="coefficient of friction (cof)">coefficient of friction (cof)</option>
+                                
+                                    <option value="copper matrix phase">copper matrix phase</option>
+                                
+                                    <option value="anton paar pin-on-disk tribometer">anton paar pin-on-disk tribometer</option>
+                                
+                                    <option value="highly refined grains">highly refined grains</option>
+                                
+                                    <option value="nascent oxide layers">nascent oxide layers</option>
+                                
+                                    <option value="niobium phase (nb)">niobium phase (nb)</option>
+                                
+                                    <option value="shearing deformation">shearing deformation</option>
+                                
+                                    <option value="dislocation loops">dislocation loops</option>
+                                
+                                    <option value="waxy coating">waxy coating</option>
+                                
+                                    <option value="stomatal pores surface">stomatal pores surface</option>
+                                
+                                    <option value="superhydrophobic materials (artificial)">superhydrophobic materials (artificial)</option>
+                                
+                                    <option value="tiny hairs">tiny hairs</option>
+                                
+                                    <option value="diw">diw</option>
+                                
+                                    <option value="bp">bp</option>
+                                
+                                    <option value="critically coordinated lattices">critically coordinated lattices</option>
+                                
+                                    <option value="criticality">criticality</option>
+                                
+                                    <option value="geometry frustration">geometry frustration</option>
+                                
+                                    <option value="chain-like clusters">chain-like clusters</option>
+                                
+                                    <option value="anode material">anode material</option>
+                                
+                                    <option value="hierarchical porous structures">hierarchical porous structures</option>
+                                
+                                    <option value="ssa">ssa</option>
+                                
+                                    <option value="in-rod porosity">in-rod porosity</option>
+                                
+                                    <option value="hard carbon">hard carbon</option>
+                                
+                                    <option value="na-ion batteries">na-ion batteries</option>
+                                
+                                    <option value="li metal">li metal</option>
+                                
+                                    <option value="anode">anode</option>
+                                
+                                    <option value="cathode">cathode</option>
+                                
+                                    <option value="electrolyte">electrolyte</option>
+                                
+                                    <option value="separator">separator</option>
+                                
+                                    <option value="silicon">silicon</option>
+                                
+                                    <option value="reaxff potential">reaxff potential</option>
+                                
+                                    <option value="plain ceramics">plain ceramics</option>
+                                
+                                    <option value="separator layer">separator layer</option>
+                                
+                                    <option value="flexible sensors">flexible sensors</option>
+                                
+                                    <option value="high-sensitive sensors">high-sensitive sensors</option>
+                                
+                                    <option value="lightweight sensors">lightweight sensors</option>
+                                
+                                    <option value="larger lattice structures">larger lattice structures</option>
+                                
+                                    <option value="small clusters">small clusters</option>
+                                
+                                    <option value="bioactive scaffolds with hierarchical porosity">bioactive scaffolds with hierarchical porosity</option>
+                                
+                                    <option value="cell survival rate">cell survival rate</option>
+                                
+                                    <option value="nutrition conduction">nutrition conduction</option>
+                                
+                                    <option value="myotubes">myotubes</option>
+                                
+                                    <option value="cell spreading">cell spreading</option>
+                                
+                                    <option value="crack extension">crack extension</option>
+                                
+                                    <option value="dislocation spreading">dislocation spreading</option>
+                                
+                                    <option value="520°c">520°c</option>
+                                
+                                    <option value="citric acid solution">citric acid solution</option>
+                                
+                                    <option value="vaterite crystals">vaterite crystals</option>
+                                
+                                    <option value="high-temperature x-ray diffraction (xrd) analysis">high-temperature x-ray diffraction (xrd) analysis</option>
+                                
+                                    <option value="na2edta solution">na2edta solution</option>
+                                
+                                    <option value="surface effects">surface effects</option>
+                                
+                                    <option value="rate of response">rate of response</option>
+                                
+                                    <option value="sensitivity">sensitivity</option>
+                                
+                                    <option value="controllability over reversible coloration">controllability over reversible coloration</option>
+                                
+                                    <option value="natural organisms">natural organisms</option>
+                                
+                                    <option value="reconformation ability">reconformation ability</option>
+                                
+                                    <option value="bone structures">bone structures</option>
+                                
+                                    <option value="periodic porous material">periodic porous material</option>
+                                
+                                    <option value="bio-inspired foam composites">bio-inspired foam composites</option>
+                                
+                                    <option value="density distribution">density distribution</option>
+                                
+                                    <option value="macroscale level">macroscale level</option>
+                                
+                                    <option value="microscale">microscale</option>
+                                
+                                    <option value="gradient in collagen fiber organization">gradient in collagen fiber organization</option>
+                                
+                                    <option value="smc cell sheets">smc cell sheets</option>
+                                
+                                    <option value="bovine aortic smooth muscle cells (smcs)">bovine aortic smooth muscle cells (smcs)</option>
+                                
+                                    <option value="magnetic yoke">magnetic yoke</option>
+                                
+                                    <option value="steep, linear magnetic field gradient">steep, linear magnetic field gradient</option>
+                                
+                                    <option value="pre-stress load cycles">pre-stress load cycles</option>
+                                
+                                    <option value="engineering strain (20%)">engineering strain (20%)</option>
+                                
+                                    <option value="constant displacement rate">constant displacement rate</option>
+                                
+                                    <option value="notching">notching</option>
+                                
+                                    <option value="specific strength">specific strength</option>
+                                
+                                    <option value="nanoscale effects">nanoscale effects</option>
+                                
+                                    <option value="size-dependent strengthening">size-dependent strengthening</option>
+                                
+                                    <option value="stochastic nanoporous materials">stochastic nanoporous materials</option>
+                                
+                                    <option value="softer matrix">softer matrix</option>
+                                
+                                    <option value="staggered array">staggered array</option>
+                                
+                                    <option value="stiff reinforcing elements">stiff reinforcing elements</option>
+                                
+                                    <option value="constitutive models for biological soft tissues">constitutive models for biological soft tissues</option>
+                                
+                                    <option value="cell attachment">cell attachment</option>
+                                
+                                    <option value="berkovich indenter">berkovich indenter</option>
+                                
+                                    <option value="correction factor">correction factor</option>
+                                
+                                    <option value="sneddon's analysis">sneddon's analysis</option>
+                                
+                                    <option value="contact depth">contact depth</option>
+                                
+                                    <option value="curvature">curvature</option>
+                                
+                                    <option value="material waste">material waste</option>
+                                
+                                    <option value="chaotropes">chaotropes</option>
+                                
+                                    <option value="kosmotropes">kosmotropes</option>
+                                
+                                    <option value="oxygen-involving chemical groups">oxygen-involving chemical groups</option>
+                                
+                                    <option value="controllable physicochemical properties">controllable physicochemical properties</option>
+                                
+                                    <option value="optimal energy absorption">optimal energy absorption</option>
+                                
+                                    <option value="foam">foam</option>
+                                
+                                    <option value="mammalian spines">mammalian spines</option>
+                                
+                                    <option value="betakeratinfibers">betakeratinfibers</option>
+                                
+                                    <option value="horsetail bio-inspired multi-cell tubes (hbmts)">horsetail bio-inspired multi-cell tubes (hbmts)</option>
+                                
+                                    <option value="carbon fibers">carbon fibers</option>
+                                
+                                    <option value="compatibilizer">compatibilizer</option>
+                                
+                                    <option value="interfacial condition">interfacial condition</option>
+                                
+                                    <option value="cysteine">cysteine</option>
+                                
+                                    <option value="maleic anhydride">maleic anhydride</option>
+                                
+                                    <option value="peg">peg</option>
+                                
+                                    <option value="phthalic anhydride">phthalic anhydride</option>
+                                
+                                    <option value="human hair composition">human hair composition</option>
+                                
+                                    <option value="dispersion stability">dispersion stability</option>
+                                
+                                    <option value="(beta)-tcp scaffolds">(beta)-tcp scaffolds</option>
+                                
+                                    <option value="gas vesicles">gas vesicles</option>
+                                
+                                    <option value="silicon tetrachloride">silicon tetrachloride</option>
+                                
+                                    <option value="cancer">cancer</option>
+                                
+                                    <option value="developmental disorder">developmental disorder</option>
+                                
+                                    <option value="disease">disease</option>
+                                
+                                    <option value="fibrosis">fibrosis</option>
+                                
+                                    <option value="health">health</option>
+                                
+                                    <option value="organ">organ</option>
+                                
+                                    <option value="offset staggering">offset staggering</option>
+                                
+                                    <option value="regular staggering">regular staggering</option>
+                                
+                                    <option value="stairwise staggering">stairwise staggering</option>
+                                
+                                    <option value="correspondence principle">correspondence principle</option>
+                                
+                                    <option value="loss modulus">loss modulus</option>
+                                
+                                    <option value="durian shells fruits">durian shells fruits</option>
+                                
+                                    <option value="electrochemical-electrodeposition machining">electrochemical-electrodeposition machining</option>
+                                
+                                    <option value="hot embossing">hot embossing</option>
+                                
+                                    <option value="ion-beam etching">ion-beam etching</option>
+                                
+                                    <option value="micro-milling">micro-milling</option>
+                                
+                                    <option value="burrs formation prevention">burrs formation prevention</option>
+                                
+                                    <option value="bioceramic rods">bioceramic rods</option>
+                                
+                                    <option value="drug loading capacity">drug loading capacity</option>
+                                
+                                    <option value="hollow tubes">hollow tubes</option>
+                                
+                                    <option value="new bone formation">new bone formation</option>
+                                
+                                    <option value="parallel multichannel structures">parallel multichannel structures</option>
+                                
+                                    <option value="biomimetic scaffolds">biomimetic scaffolds</option>
+                                
+                                    <option value="dissolution behavior">dissolution behavior</option>
+                                
+                                    <option value="osteoprogenitor cell containing scaffolds">osteoprogenitor cell containing scaffolds</option>
+                                
+                                    <option value="tumor therapy">tumor therapy</option>
+                                
+                                    <option value="composite plates bio-inspired structures">composite plates bio-inspired structures</option>
+                                
+                                    <option value="foams bio-inspired structures">foams bio-inspired structures</option>
+                                
+                                    <option value="frusta bio-inspired structures">frusta bio-inspired structures</option>
+                                
+                                    <option value="honeycombs bio-inspired structures">honeycombs bio-inspired structures</option>
+                                
+                                    <option value="lattices bio-inspired structures">lattices bio-inspired structures</option>
+                                
+                                    <option value="multi-cell tubes bio-inspired structures">multi-cell tubes bio-inspired structures</option>
+                                
+                                    <option value="sandwich panels bio-inspired structures">sandwich panels bio-inspired structures</option>
+                                
+                                    <option value="biomimicry design spiral">biomimicry design spiral</option>
+                                
+                                    <option value="manufacturing technique">manufacturing technique</option>
+                                
+                                    <option value="tubular shapes">tubular shapes</option>
+                                
+                                    <option value="single hollow tubes">single hollow tubes</option>
+                                
+                                    <option value="reducing batch-to-batch variability">reducing batch-to-batch variability</option>
+                                
+                                    <option value="amino acids">amino acids</option>
+                                
+                                    <option value="capping agents">capping agents</option>
+                                
+                                    <option value="0-d shaped cap crystals">0-d shaped cap crystals</option>
+                                
+                                    <option value="nanoclusters">nanoclusters</option>
+                                
+                                    <option value="custom-designed manifold extrusion heads">custom-designed manifold extrusion heads</option>
+                                
+                                    <option value="satisfactory printing quality">satisfactory printing quality</option>
+                                
+                                    <option value="electrode materials">electrode materials</option>
+                                
+                                    <option value="imaging">imaging</option>
+                                
+                                    <option value="nps">nps</option>
+                                
+                                    <option value="crystal growth templates">crystal growth templates</option>
+                                
+                                    <option value="crystal surfaces">crystal surfaces</option>
+                                
+                                    <option value="block copolymers">block copolymers</option>
+                                
+                                    <option value="low-temperature, aqueous processing">low-temperature, aqueous processing</option>
+                                
+                                    <option value="dense crystalline films">dense crystalline films</option>
+                                
+                                    <option value="temperature-sensitive materials">temperature-sensitive materials</option>
+                                
+                                    <option value="uniform coating">uniform coating</option>
+                                
+                                    <option value="anisotropy (materials science)">anisotropy (materials science)</option>
+                                
+                                    <option value="bacterial cellulose (bc)">bacterial cellulose (bc)</option>
+                                
+                                    <option value="ethylene vinyl alcohol (evoh)">ethylene vinyl alcohol (evoh)</option>
+                                
+                                    <option value="mechanical properties (materials science)">mechanical properties (materials science)</option>
+                                
+                                    <option value="bc-evoh composites">bc-evoh composites</option>
+                                
+                                    <option value="phase separation (materials science)">phase separation (materials science)</option>
+                                
+                                    <option value="afm morphological analysis">afm morphological analysis</option>
+                                
+                                    <option value="(beta)-sheet secondary structures">(beta)-sheet secondary structures</option>
+                                
+                                    <option value="self-assembly properties">self-assembly properties</option>
+                                
+                                    <option value="highly ordered (beta)-sheet-rich assemblies">highly ordered (beta)-sheet-rich assemblies</option>
+                                
+                                    <option value="thicker and more ordered fibrils">thicker and more ordered fibrils</option>
+                                
+                                    <option value="tht binding assay">tht binding assay</option>
+                                
+                                    <option value="uv-induced degradation">uv-induced degradation</option>
+                                
+                                    <option value="nanophasetiplgacomposites">nanophasetiplgacomposites</option>
+                                
+                                    <option value="plgascaffold">plgascaffold</option>
+                                
+                                    <option value="stc">stc</option>
+                                
+                                    <option value="phdrop">phdrop</option>
+                                
+                                    <option value="weightloss">weightloss</option>
+                                
+                                    <option value="degradation behavior">degradation behavior</option>
+                                
+                                    <option value="tomographic reconstructions">tomographic reconstructions</option>
+                                
+                                    <option value="densification">densification</option>
+                                
+                                    <option value="ceramic gel casting">ceramic gel casting</option>
+                                
+                                    <option value="hydrogel-ceramic composite graft">hydrogel-ceramic composite graft</option>
+                                
+                                    <option value="interconnected pore structure">interconnected pore structure</option>
+                                
+                                    <option value="enriched s">enriched s</option>
+                                
+                                    <option value="extrinsic pseudocapacitor">extrinsic pseudocapacitor</option>
+                                
+                                    <option value="a-t/-mns@co_s,s/bn, s-c-5">a-t/-mns@co_s,s/bn, s-c-5</option>
+                                
+                                    <option value="qfeps device">qfeps device</option>
+                                
+                                    <option value="a-t/-mns nanoparticles">a-t/-mns nanoparticles</option>
+                                
+                                    <option value="operational potential range">operational potential range</option>
+                                
+                                    <option value="traditional solid-state capacitors">traditional solid-state capacitors</option>
+                                
+                                    <option value="bioactivity">bioactivity</option>
+                                
+                                    <option value="soft scaffold">soft scaffold</option>
+                                
+                                    <option value="roughly arranged interfaces">roughly arranged interfaces</option>
+                                
+                                    <option value="ph value">ph value</option>
+                                
+                                    <option value="phosphate ions">phosphate ions</option>
+                                
+                                    <option value="silicate ions">silicate ions</option>
+                                
+                                    <option value="shrinkage">shrinkage</option>
+                                
+                                    <option value="higher modulus">higher modulus</option>
+                                
+                                    <option value="xxyy pattern">xxyy pattern</option>
+                                
+                                    <option value="decrease during second stage">decrease during second stage</option>
+                                
+                                    <option value="increase during first stage">increase during first stage</option>
+                                
+                                    <option value="sbf solution">sbf solution</option>
+                                
+                                    <option value="actin bundle gels">actin bundle gels</option>
+                                
+                                    <option value="conceptual learning">conceptual learning</option>
+                                
+                                    <option value="effective use of information">effective use of information</option>
+                                
+                                    <option value="non-productive skills">non-productive skills</option>
+                                
+                                    <option value="productive knowledge transfer">productive knowledge transfer</option>
+                                
+                                    <option value="socio-cultural learning">socio-cultural learning</option>
+                                
+                                    <option value="unit elements">unit elements</option>
+                                
+                                    <option value="discovery acceleration">discovery acceleration</option>
+                                
+                                    <option value="chemistry">chemistry</option>
+                                
+                                    <option value="adsorption time">adsorption time</option>
+                                
+                                    <option value="carbonate">carbonate</option>
+                                
+                                    <option value="phosphate peak">phosphate peak</option>
+                                
+                                    <option value="phosphate vibrational mode (ν3)">phosphate vibrational mode (ν3)</option>
+                                
+                                    <option value="chemical bonding">chemical bonding</option>
+                                
+                                    <option value="functional groups">functional groups</option>
+                                
+                                    <option value="human cancellous bone fractures">human cancellous bone fractures</option>
+                                
+                                    <option value="iliac crest biopsies">iliac crest biopsies</option>
+                                
+                                    <option value="larger fibrous bundles">larger fibrous bundles</option>
+                                
+                                    <option value="n-acetyl-d-glucosamine units">n-acetyl-d-glucosamine units</option>
+                                
+                                    <option value="moulting">moulting</option>
+                                
+                                    <option value="crystalline structure">crystalline structure</option>
+                                
+                                    <option value="staggered structures">staggered structures</option>
+                                
+                                    <option value="25 mw">25 mw</option>
+                                
+                                    <option value="no significant change">no significant change</option>
+                                
+                                    <option value="writing threshold">writing threshold</option>
+                                
+                                    <option value="35 mw">35 mw</option>
+                                
+                                    <option value="50 mw">50 mw</option>
+                                
+                                    <option value="axial voxel-line distance">axial voxel-line distance</option>
+                                
+                                    <option value="local post-curing">local post-curing</option>
+                                
+                                    <option value="degree of conversion">degree of conversion</option>
+                                
+                                    <option value="process window">process window</option>
+                                
+                                    <option value="reference block">reference block</option>
+                                
+                                    <option value="doc">doc</option>
+                                
+                                    <option value="spherical aberrations">spherical aberrations</option>
+                                
+                                    <option value="introduced intensity">introduced intensity</option>
+                                
+                                    <option value="how mechanical properties during a second exposure depend on">how mechanical properties during a second exposure depend on</option>
+                                
+                                    <option value="laser power">laser power</option>
+                                
+                                    <option value="laser exposure energy">laser exposure energy</option>
+                                
+                                    <option value="second exposure">second exposure</option>
+                                
+                                    <option value="effect of multiple laser exposures">effect of multiple laser exposures</option>
+                                
+                                    <option value="shifting voxel lines">shifting voxel lines</option>
+                                
+                                    <option value="subsent exposure">subsent exposure</option>
+                                
+                                    <option value="transverse voxel-line distance">transverse voxel-line distance</option>
+                                
+                                    <option value="physical properties">physical properties</option>
+                                
+                                    <option value="soft yet solid properties">soft yet solid properties</option>
+                                
+                                    <option value="varying laser exposure energy">varying laser exposure energy</option>
+                                
+                                    <option value="scanning speed">scanning speed</option>
+                                
+                                    <option value="minimizes">minimizes</option>
+                                
+                                    <option value="assembly">assembly</option>
+                                
+                                    <option value="top-down lithographically defined structures">top-down lithographically defined structures</option>
+                                
+                                    <option value="rates">rates</option>
+                                
+                                    <option value="real-time data">real-time data</option>
+                                
+                                    <option value="self-assembly mechanisms">self-assembly mechanisms</option>
+                                
+                                    <option value="polystyrene">polystyrene</option>
+                                
+                                    <option value="domains">domains</option>
+                                
+                                    <option value="charging">charging</option>
+                                
+                                    <option value="electron density">electron density</option>
+                                
+                                    <option value="potential artifacts or damage">potential artifacts or damage</option>
+                                
+                                    <option value="quality">quality</option>
+                                
+                                    <option value="antiparallel-packed cellulose crystals">antiparallel-packed cellulose crystals</option>
+                                
+                                    <option value="bacterial cellulose">bacterial cellulose</option>
+                                
+                                    <option value="sfg spectroscopy">sfg spectroscopy</option>
+                                
+                                    <option value="major peaks at 2944 cm-1">major peaks at 2944 cm-1</option>
+                                
+                                    <option value="non-antiparallel bundles of cellulose microfibrils">non-antiparallel bundles of cellulose microfibrils</option>
+                                
+                                    <option value="randomly entangled microfibrils">randomly entangled microfibrils</option>
+                                
+                                    <option value="high-strength dual network hydrogels">high-strength dual network hydrogels</option>
+                                
+                                    <option value="common peak centered at ~3320 cm-1">common peak centered at ~3320 cm-1</option>
+                                
+                                    <option value="peak at 3270 cm-1">peak at 3270 cm-1</option>
+                                
+                                    <option value="peak at 3240 cm-1">peak at 3240 cm-1</option>
+                                
+                                    <option value="distinct cellulose structures">distinct cellulose structures</option>
+                                
+                                    <option value="cellulose crystals">cellulose crystals</option>
+                                
+                                    <option value="liquid photopolymer droplets">liquid photopolymer droplets</option>
+                                
+                                    <option value="mj">mj</option>
+                                
+                                    <option value="high resolution">high resolution</option>
+                                
+                                    <option value="hybrid stiff and soft matrix architectures">hybrid stiff and soft matrix architectures</option>
+                                
+                                    <option value="photosensitive resins">photosensitive resins</option>
+                                
+                                    <option value="smooth surfaces">smooth surfaces</option>
+                                
+                                    <option value="uv curing">uv curing</option>
+                                
+                                    <option value="multijet">multijet</option>
+                                
+                                    <option value="polyjet">polyjet</option>
+                                
+                                    <option value="high printing speed">high printing speed</option>
+                                
+                                    <option value="inkjet head blockage issues">inkjet head blockage issues</option>
+                                
+                                    <option value="multimaterial printing">multimaterial printing</option>
+                                
+                                    <option value="multimazle">multimazle</option>
+                                
+                                    <option value="pointwise manufacturing technologies like sls">pointwise manufacturing technologies like sls</option>
+                                
+                                    <option value="separation and purification">separation and purification</option>
+                                
+                                    <option value="biodegradable plga fiber deposition">biodegradable plga fiber deposition</option>
+                                
+                                    <option value="hierarchically branched structures">hierarchically branched structures</option>
+                                
+                                    <option value="similarly_porous_scaffolds">similarly_porous_scaffolds</option>
+                                
+                                    <option value="biological performance">biological performance</option>
+                                
+                                    <option value="simulated body fluid">simulated body fluid</option>
+                                
+                                    <option value="myoblasts">myoblasts</option>
+                                
+                                    <option value="proteins (alpha-helical)">proteins (alpha-helical)</option>
+                                
+                                    <option value="reaxff reactive molecular dynamics simulations">reaxff reactive molecular dynamics simulations</option>
+                                
+                                    <option value="of material under stretching">of material under stretching</option>
+                                
+                                    <option value="degree of crosslinking">degree of crosslinking</option>
+                                
+                                    <option value="feature-level control over geometry">feature-level control over geometry</option>
+                                
+                                    <option value="stratification">stratification</option>
+                                
+                                    <option value="superficial neuromasts of fish">superficial neuromasts of fish</option>
+                                
+                                    <option value="wetting">wetting</option>
+                                
+                                    <option value="usability">usability</option>
+                                
+                                    <option value="mobile application">mobile application</option>
+                                
+                                    <option value="combined assembly approach">combined assembly approach</option>
+                                
+                                    <option value="cryoet">cryoet</option>
+                                
+                                    <option value="sample">sample</option>
+                                
+                                    <option value="collective cell migration">collective cell migration</option>
+                                
+                                    <option value="crypt folding">crypt folding</option>
+                                
+                                    <option value="eth logo">eth logo</option>
+                                
+                                    <option value="hydrogen bonds (hbs)">hydrogen bonds (hbs)</option>
+                                
+                                    <option value="pareto principle">pareto principle</option>
+                                
+                                    <option value="coiled-coils (ccs)">coiled-coils (ccs)</option>
+                                
+                                    <option value="extended bell model">extended bell model</option>
+                                
+                                    <option value="homogeneous plastic strain distribution">homogeneous plastic strain distribution</option>
+                                
+                                    <option value="softer structure">softer structure</option>
+                                
+                                    <option value="fluids">fluids</option>
+                                
+                                    <option value="backward diffusion">backward diffusion</option>
+                                
+                                    <option value="alleviates limitations associated with">alleviates limitations associated with</option>
+                                
+                                    <option value="conventional simulation strategies">conventional simulation strategies</option>
+                                
+                                    <option value="dynamically modeling structures">dynamically modeling structures</option>
+                                
+                                    <option value="k'c">k'c</option>
+                                
+                                    <option value="k's">k's</option>
+                                
+                                    <option value="externalfields">externalfields</option>
+                                
+                                    <option value="interlocked structure">interlocked structure</option>
+                                
+                                    <option value="axoneme">axoneme</option>
+                                
+                                    <option value="9 + 2 bundle">9 + 2 bundle</option>
+                                
+                                    <option value="cylindrical mesh">cylindrical mesh</option>
+                                
+                                    <option value="complementary systems">complementary systems</option>
+                                
+                                    <option value="data sets">data sets</option>
+                                
+                                    <option value="increased resolution">increased resolution</option>
+                                
+                                    <option value="mathematical principles">mathematical principles</option>
+                                
+                                    <option value="data">data</option>
+                                
+                                    <option value="modeling">modeling</option>
+                                
+                                    <option value="structural complexity">structural complexity</option>
+                                
+                                    <option value="alpha-helical coiled coil domains">alpha-helical coiled coil domains</option>
+                                
+                                    <option value="beta-structured zones">beta-structured zones</option>
+                                
+                                    <option value="stretched alpha-helices">stretched alpha-helices</option>
+                                
+                                    <option value="double-edge-notched thin sheets">double-edge-notched thin sheets</option>
+                                
+                                    <option value="egg capsule material">egg capsule material</option>
+                                
+                                    <option value="mineral platelets">mineral platelets</option>
+                                
+                                    <option value="better connectivity">better connectivity</option>
+                                
+                                    <option value="significantly higher stiffness">significantly higher stiffness</option>
+                                
+                                    <option value="significantly higher strength">significantly higher strength</option>
+                                
+                                    <option value="strain stiffening">strain stiffening</option>
+                                
+                                    <option value="fatigue endurance">fatigue endurance</option>
+                                
+                                    <option value="ideal material">ideal material</option>
+                                
+                                    <option value="evaporation-induced self-assembly">evaporation-induced self-assembly</option>
+                                
+                                    <option value="layer-by-layer assembly">layer-by-layer assembly</option>
+                                
+                                    <option value="roles">roles</option>
+                                
+                                    <option value="wei et al.">wei et al.</option>
+                                
+                                    <option value="beetle-inspired elytron structure">beetle-inspired elytron structure</option>
+                                
+                                    <option value="honeycomb structure">honeycomb structure</option>
+                                
+                                    <option value="composite of oxide and polydimethylsiloxane">composite of oxide and polydimethylsiloxane</option>
+                                
+                                    <option value="oil-fouling-resistant superhydrophobicity">oil-fouling-resistant superhydrophobicity</option>
+                                
+                                    <option value="high aspect ratios">high aspect ratios</option>
+                                
+                                    <option value="theoretical predictions">theoretical predictions</option>
+                                
+                                    <option value="current rve model">current rve model</option>
+                                
+                                    <option value="real structure">real structure</option>
+                                
+                                    <option value="enhanced cell morphology">enhanced cell morphology</option>
+                                
+                                    <option value="smaller cell area">smaller cell area</option>
+                                
+                                    <option value="bacterial cellulose (cel)">bacterial cellulose (cel)</option>
+                                
+                                    <option value="highly ordered honeycomb structure">highly ordered honeycomb structure</option>
+                                
+                                    <option value="hydrochloric acid vapor treatment">hydrochloric acid vapor treatment</option>
+                                
+                                    <option value="weight ratio adjustment">weight ratio adjustment</option>
+                                
+                                    <option value="histocompatibility">histocompatibility</option>
+                                
+                                    <option value="dissolution mechanism">dissolution mechanism</option>
+                                
+                                    <option value="polymer structure">polymer structure</option>
+                                
+                                    <option value="skin applications">skin applications</option>
+                                
+                                    <option value="orthopaedic applications">orthopaedic applications</option>
+                                
+                                    <option value="magadite">magadite</option>
+                                
+                                    <option value="channel behavior">channel behavior</option>
+                                
+                                    <option value="dib networks">dib networks</option>
+                                
+                                    <option value="embedded passive biomolecules">embedded passive biomolecules</option>
+                                
+                                    <option value="charged lipid bilayers">charged lipid bilayers</option>
+                                
+                                    <option value="multiscale materials">multiscale materials</option>
+                                
+                                    <option value="extension case">extension case</option>
+                                
+                                    <option value="traditional electrical circuit models">traditional electrical circuit models</option>
+                                
+                                    <option value="elr matrix">elr matrix</option>
+                                
+                                    <option value="fluorapatite formation">fluorapatite formation</option>
+                                
+                                    <option value="viscous flows">viscous flows</option>
+                                
+                                    <option value="vascular bundles (dm10)">vascular bundles (dm10)</option>
+                                
+                                    <option value="repeating units">repeating units</option>
+                                
+                                    <option value="packmol">packmol</option>
+                                
+                                    <option value="dried scaffolds">dried scaffolds</option>
+                                
+                                    <option value="fe-sem">fe-sem</option>
+                                
+                                    <option value="optical microscope">optical microscope</option>
+                                
+                                    <option value="waxd">waxd</option>
+                                
+                                    <option value="wide-angle x-ray diffraction">wide-angle x-ray diffraction</option>
+                                
+                                    <option value="all-atom models">all-atom models</option>
+                                
+                                    <option value="coarser, larger scales">coarser, larger scales</option>
+                                
+                                    <option value="multiscale description">multiscale description</option>
+                                
+                                    <option value="molecular composition and notch/crease patterns">molecular composition and notch/crease patterns</option>
+                                
+                                    <option value="nacretherm">nacretherm</option>
+                                
+                                    <option value="simulation methods">simulation methods</option>
+                                
+                                    <option value="microscale_and_macroscale_phenomena">microscale_and_macroscale_phenomena</option>
+                                
+                                    <option value="process complexity challenges">process complexity challenges</option>
+                                
+                                    <option value="investigation">investigation</option>
+                                
+                                    <option value="tersoff potential">tersoff potential</option>
+                                
+                                    <option value="xps">xps</option>
+                                
+                                    <option value="tri-phasic scaffolds">tri-phasic scaffolds</option>
+                                
+                                    <option value="stepwise patterns in stress-strain curves">stepwise patterns in stress-strain curves</option>
+                                
+                                    <option value="bi-phasic scaffolds">bi-phasic scaffolds</option>
+                                
+                                    <option value="focusing performance">focusing performance</option>
+                                
+                                    <option value="furcate slanted micropillars">furcate slanted micropillars</option>
+                                
+                                    <option value="trapping">trapping</option>
+                                
+                                    <option value="micropillar assembly force">micropillar assembly force</option>
+                                
+                                    <option value="micropillar development solvent">micropillar development solvent</option>
+                                
+                                    <option value="micropillar fabrication technique">micropillar fabrication technique</option>
+                                
+                                    <option value="micropillar fabrication">micropillar fabrication</option>
+                                
+                                    <option value="micropillar materials">micropillar materials</option>
+                                
+                                    <option value="diffraction imaging">diffraction imaging</option>
+                                
+                                    <option value="gravity">gravity</option>
+                                
+                                    <option value="honeycomb structures">honeycomb structures</option>
+                                
+                                    <option value="optical fiber tips">optical fiber tips</option>
+                                
+                                    <option value="impact force">impact force</option>
+                                
+                                    <option value="material aggregates">material aggregates</option>
+                                
+                                    <option value="carbonized chitin/caco3 crab shell">carbonized chitin/caco3 crab shell</option>
+                                
+                                    <option value="continuity">continuity</option>
+                                
+                                    <option value="fibrous_morphology">fibrous_morphology</option>
+                                
+                                    <option value="particulate_morphology">particulate_morphology</option>
+                                
+                                    <option value="synthetic composites">synthetic composites</option>
+                                
+                                    <option value="hierarchical filamentous networks">hierarchical filamentous networks</option>
+                                
+                                    <option value="nested, dilute triangular lattice structure">nested, dilute triangular lattice structure</option>
+                                
+                                    <option value="images and maps">images and maps</option>
+                                
+                                    <option value="individual polygonal b-keratin microplatelets">individual polygonal b-keratin microplatelets</option>
+                                
+                                    <option value="nanoscale platelets">nanoscale platelets</option>
+                                
+                                    <option value="do not arrange in">do not arrange in</option>
+                                
+                                    <option value="macroscopic turtle shell keratin layer">macroscopic turtle shell keratin layer</option>
+                                
+                                    <option value="dry environment">dry environment</option>
+                                
+                                    <option value="prismatic single crystals">prismatic single crystals</option>
+                                
+                                    <option value="organic molecules">organic molecules</option>
+                                
+                                    <option value="amber ff99 force field">amber ff99 force field</option>
+                                
+                                    <option value="dlip">dlip</option>
+                                
+                                    <option value="absorption coefficient">absorption coefficient</option>
+                                
+                                    <option value="dlw">dlw</option>
+                                
+                                    <option value="ionization energy">ionization energy</option>
+                                
+                                    <option value="pulse duration">pulse duration</option>
+                                
+                                    <option value="wavelength">wavelength</option>
+                                
+                                    <option value="maximum energy input required for ablation">maximum energy input required for ablation</option>
+                                
+                                    <option value="repetition rate">repetition rate</option>
+                                
+                                    <option value="scattering vector">scattering vector</option>
+                                
+                                    <option value="constant loading rate">constant loading rate</option>
+                                
+                                    <option value="in-situ electro-mechanical testing platform">in-situ electro-mechanical testing platform</option>
+                                
+                                    <option value="lubrication">lubrication</option>
+                                
+                                    <option value="cooling kinetics during extrusion">cooling kinetics during extrusion</option>
+                                
+                                    <option value="domain orientation parameter s">domain orientation parameter s</option>
+                                
+                                    <option value="theoretical description">theoretical description</option>
+                                
+                                    <option value="skin depth">skin depth</option>
+                                
+                                    <option value="melting temperature">melting temperature</option>
+                                
+                                    <option value="room temperature substrate">room temperature substrate</option>
+                                
+                                    <option value="synthetic hydrogels">synthetic hydrogels</option>
+                                
+                                    <option value="hydrolytically labile groups">hydrolytically labile groups</option>
+                                
+                                    <option value="oligo poly(esters)">oligo poly(esters)</option>
+                                
+                                    <option value="biological body armor materials">biological body armor materials</option>
+                                
+                                    <option value="cell collapse and densification">cell collapse and densification</option>
+                                
+                                    <option value="delamination buckling">delamination buckling</option>
+                                
+                                    <option value="fiber bridging">fiber bridging</option>
+                                
+                                    <option value="protective layer debonding">protective layer debonding</option>
+                                
+                                    <option value="resistance to stress and strain">resistance to stress and strain</option>
+                                
+                                    <option value="synthetic body armor materials">synthetic body armor materials</option>
+                                
+                                    <option value="isotropic behavior">isotropic behavior</option>
+                                
+                                    <option value="total_energy_absorption">total_energy_absorption</option>
+                                
+                                    <option value="storage moduli">storage moduli</option>
+                                
+                                    <option value="cell-free tissue substitutes">cell-free tissue substitutes</option>
+                                
+                                    <option value="collagen films">collagen films</option>
+                                
+                                    <option value="carbon nanotube-based composites">carbon nanotube-based composites</option>
+                                
+                                    <option value="nanotube-spun_fibers">nanotube-spun_fibers</option>
+                                
+                                    <option value="electronic microscopy">electronic microscopy</option>
+                                
+                                    <option value="hardness values">hardness values</option>
+                                
+                                    <option value="used for proteins">used for proteins</option>
+                                
+                                    <option value="provide efficient gas exchange with high sensitivity">provide efficient gas exchange with high sensitivity</option>
+                                
+                                    <option value="provide support for">provide support for</option>
+                                
+                                    <option value="fibrous structures">fibrous structures</option>
+                                
+                                    <option value="embedding">embedding</option>
+                                
+                                    <option value="abete's study">abete's study</option>
+                                
+                                    <option value="short-range graphitic domains">short-range graphitic domains</option>
+                                
+                                    <option value="ligaments and tendons">ligaments and tendons</option>
+                                
+                                    <option value="coiled ssebs chains">coiled ssebs chains</option>
+                                
+                                    <option value="continuous breakage and reforming of hydrogen bonding">continuous breakage and reforming of hydrogen bonding</option>
+                                
+                                    <option value="pure go film">pure go film</option>
+                                
+                                    <option value="ssebs nanoparticles">ssebs nanoparticles</option>
+                                
+                                    <option value="phenyl groups">phenyl groups</option>
+                                
+                                    <option value="laminated spicules">laminated spicules</option>
+                                
+                                    <option value="interlayer boundary">interlayer boundary</option>
+                                
+                                    <option value="outer cortex">outer cortex</option>
+                                
+                                    <option value="periphery">periphery</option>
+                                
+                                    <option value="thin outer layers">thin outer layers</option>
+                                
+                                    <option value="silica sheets">silica sheets</option>
+                                
+                                    <option value="multicellular organisms">multicellular organisms</option>
+                                
+                                    <option value="organs">organs</option>
+                                
+                                    <option value="hypothesis">hypothesis</option>
+                                
+                                    <option value="center crack">center crack</option>
+                                
+                                    <option value="cohesive zone size">cohesive zone size</option>
+                                
+                                    <option value="crack size">crack size</option>
+                                
+                                    <option value="contact size">contact size</option>
+                                
+                                    <option value="defect_tolerance_length_scales">defect_tolerance_length_scales</option>
+                                
+                                    <option value="critical size">critical size</option>
+                                
+                                    <option value="critical thickness">critical thickness</option>
+                                
+                                    <option value="flaw tolerance number">flaw tolerance number</option>
+                                
+                                    <option value="traction-separation law">traction-separation law</option>
+                                
+                                    <option value="normalized critical size">normalized critical size</option>
+                                
+                                    <option value="concentration variations of adhesive proteins like resilin">concentration variations of adhesive proteins like resilin</option>
+                                
+                                    <option value="gradually reducing interface stiffness">gradually reducing interface stiffness</option>
+                                
+                                    <option value="1 mpa">1 mpa</option>
+                                
+                                    <option value="6 gpa">6 gpa</option>
+                                
+                                    <option value="adaptability to surfaces">adaptability to surfaces</option>
+                                
+                                    <option value="adhesive energy">adhesive energy</option>
+                                
+                                    <option value="early-stage onset of delamination">early-stage onset of delamination</option>
+                                
+                                    <option value="stress distributions on the contact area">stress distributions on the contact area</option>
+                                
+                                    <option value="two gradients">two gradients</option>
+                                
+                                    <option value="tapered geometries">tapered geometries</option>
+                                
+                                    <option value="local strain environments">local strain environments</option>
+                                
+                                    <option value="interstitial_lamellae">interstitial_lamellae</option>
+                                
+                                    <option value="cca_model">cca_model</option>
+                                
+                                    <option value="cement lines">cement lines</option>
+                                
+                                    <option value="effective modulus">effective modulus</option>
+                                
+                                    <option value="haversian_canals">haversian_canals</option>
+                                
+                                    <option value="locally_exact_homogenization_theory">locally_exact_homogenization_theory</option>
+                                
+                                    <option value="mori-tanaka_theory">mori-tanaka_theory</option>
+                                
+                                    <option value="under low-energy exposure">under low-energy exposure</option>
+                                
+                                    <option value="composite_structure">composite_structure</option>
+                                
+                                    <option value="biofabrication approach">biofabrication approach</option>
+                                
+                                    <option value="uni platform">uni platform</option>
+                                
+                                    <option value="direct inject writing (diw)">direct inject writing (diw)</option>
+                                
+                                    <option value="gelatin methacryloyl (gelma) solutions">gelatin methacryloyl (gelma) solutions</option>
+                                
+                                    <option value="biomaterial mechanical properties">biomaterial mechanical properties</option>
+                                
+                                    <option value="silica-sf-cm-rgd-60">silica-sf-cm-rgd-60</option>
+                                
+                                    <option value="diw suitable rheological properties">diw suitable rheological properties</option>
+                                
+                                    <option value="representative biological structures">representative biological structures</option>
+                                
+                                    <option value="uni platform provides hierarchical control">uni platform provides hierarchical control</option>
+                                
+                                    <option value="tailored rheological properties">tailored rheological properties</option>
+                                
+                                    <option value="energy volume density">energy volume density</option>
+                                
+                                    <option value="enhancement factor">enhancement factor</option>
+                                
+                                    <option value="chemical modification">chemical modification</option>
+                                
+                                    <option value="physical changes">physical changes</option>
+                                
+                                    <option value="optimized parameter">optimized parameter</option>
+                                
+                                    <option value="aptes">aptes</option>
+                                
+                                    <option value="hydrogen peroxide">hydrogen peroxide</option>
+                                
+                                    <option value="enhanced mechanical strength">enhanced mechanical strength</option>
+                                
+                                    <option value="microscopy">microscopy</option>
+                                
+                                    <option value="renewable materials">renewable materials</option>
+                                
+                                    <option value="spectroscopy">spectroscopy</option>
+                                
+                                    <option value="superconducting behavior">superconducting behavior</option>
+                                
+                                    <option value="electronic device applications">electronic device applications</option>
+                                
+                                    <option value="energy storage applications">energy storage applications</option>
+                                
+                                    <option value="areas of greatest stress">areas of greatest stress</option>
+                                
+                                    <option value="biological strategies">biological strategies</option>
+                                
+                                    <option value="biological terms">biological terms</option>
+                                
+                                    <option value="desired function">desired function</option>
+                                
+                                    <option value="essential features">essential features</option>
+                                
+                                    <option value="natural models">natural models</option>
+                                
+                                    <option value="b2 phase">b2 phase</option>
+                                
+                                    <option value="crystal interior">crystal interior</option>
+                                
+                                    <option value="deviation from initial angle">deviation from initial angle</option>
+                                
+                                    <option value="high load-bearing capability">high load-bearing capability</option>
+                                
+                                    <option value="huge elastic strain">huge elastic strain</option>
+                                
+                                    <option value="conventionally cast ehea">conventionally cast ehea</option>
+                                
+                                    <option value="macroscopic necking">macroscopic necking</option>
+                                
+                                    <option value="directionally solidified ehea">directionally solidified ehea</option>
+                                
+                                    <option value="ehea_cc">ehea_cc</option>
+                                
+                                    <option value="interface delamination cracks">interface delamination cracks</option>
+                                
+                                    <option value="ehea_ds">ehea_ds</option>
+                                
+                                    <option value="l12 phase">l12 phase</option>
+                                
+                                    <option value="massive dislocations">massive dislocations</option>
+                                
+                                    <option value="pronounced crystallographic slip line structures">pronounced crystallographic slip line structures</option>
+                                
+                                    <option value="self-shaping textiles">self-shaping textiles</option>
+                                
+                                    <option value="fabrication pathway">fabrication pathway</option>
+                                
+                                    <option value="full robotic garments">full robotic garments</option>
+                                
+                                    <option value="passive textiles">passive textiles</option>
+                                
+                                    <option value="high mechanical stresses">high mechanical stresses</option>
+                                
+                                    <option value="clothing">clothing</option>
+                                
+                                    <option value="small-scale applications">small-scale applications</option>
+                                
+                                    <option value="textiles">textiles</option>
+                                
+                                    <option value="iless">iless</option>
+                                
+                                    <option value="wearable robots">wearable robots</option>
+                                
+                                    <option value="bionic bumper">bionic bumper</option>
+                                
+                                    <option value="crash box">crash box</option>
+                                
+                                    <option value="cross-beam">cross-beam</option>
+                                
+                                    <option value="specific energy absorption (sea)">specific energy absorption (sea)</option>
+                                
+                                    <option value="circular tubes">circular tubes</option>
+                                
+                                    <option value="square tubes">square tubes</option>
+                                
+                                    <option value="beetle-inspired additively manufactured structures">beetle-inspired additively manufactured structures</option>
+                                
+                                    <option value="al tube">al tube</option>
+                                
+                                    <option value="pp tube">pp tube</option>
+                                
+                                    <option value="glass surfaces">glass surfaces</option>
+                                
+                                    <option value="mkene-based aerogels">mkene-based aerogels</option>
+                                
+                                    <option value="charge repulsion">charge repulsion</option>
+                                
+                                    <option value="degree of">degree of</option>
+                                
+                                    <option value="ad">ad</option>
+                                
+                                    <option value="acrylamide monomers">acrylamide monomers</option>
+                                
+                                    <option value="zwitterionic systems">zwitterionic systems</option>
+                                
+                                    <option value="controlled free radical polymerization">controlled free radical polymerization</option>
+                                
+                                    <option value="controlled hydrophilic/hydrophobic interactions">controlled hydrophilic/hydrophobic interactions</option>
+                                
+                                    <option value="poly(n-(2-hydroxyethyl) methacrylate-_co-peg)">poly(n-(2-hydroxyethyl) methacrylate-_co-peg)</option>
+                                
+                                    <option value="cucurbit[7]">cucurbit[7]</option>
+                                
+                                    <option value="printing parameters">printing parameters</option>
+                                
+                                    <option value="well-defined am parts">well-defined am parts</option>
+                                
+                                    <option value="supramolecular chemistry">supramolecular chemistry</option>
+                                
+                                    <option value="synthetic polymer chemistry">synthetic polymer chemistry</option>
+                                
+                                    <option value="covalent crosslinking">covalent crosslinking</option>
+                                
+                                    <option value="precise tuning">precise tuning</option>
+                                
+                                    <option value="constitutive_theories">constitutive_theories</option>
+                                
+                                    <option value="transverse direction">transverse direction</option>
+                                
+                                    <option value="knee_joint">knee_joint</option>
+                                
+                                    <option value="weaknesses in longitudinal direction">weaknesses in longitudinal direction</option>
+                                
+                                    <option value="82%">82%</option>
+                                
+                                    <option value="cuticle layer (biological material)">cuticle layer (biological material)</option>
+                                
+                                    <option value="inner diameter (tubular shapes)">inner diameter (tubular shapes)</option>
+                                
+                                    <option value="layered arrangements">layered arrangements</option>
+                                
+                                    <option value="glass">glass</option>
+                                
+                                    <option value="bond rupture">bond rupture</option>
+                                
+                                    <option value="flaw-tolerance mechanisms">flaw-tolerance mechanisms</option>
+                                
+                                    <option value="self-protecting materials">self-protecting materials</option>
+                                
+                                    <option value="accessible values for robustness">accessible values for robustness</option>
+                                
+                                    <option value="alpha-helical protein domains">alpha-helical protein domains</option>
+                                
+                                    <option value="fracture/rupture">fracture/rupture</option>
+                                
+                                    <option value="adverse effects">adverse effects</option>
+                                
+                                    <option value="nonpolar solvent">nonpolar solvent</option>
+                                
+                                    <option value="repeated breaking">repeated breaking</option>
+                                
+                                    <option value="medial aspect">medial aspect</option>
+                                
+                                    <option value="compressive stresses">compressive stresses</option>
+                                
+                                    <option value="rat femora">rat femora</option>
+                                
+                                    <option value="ts waviness">ts waviness</option>
+                                
+                                    <option value="nickel layers">nickel layers</option>
+                                
+                                    <option value="alkyl chains">alkyl chains</option>
+                                
+                                    <option value="sg">sg</option>
+                                
+                                    <option value="acid-base titration">acid-base titration</option>
+                                
+                                    <option value="quantitative estimation">quantitative estimation</option>
+                                
+                                    <option value="mineral ions">mineral ions</option>
+                                
+                                    <option value="nanosheet-laminated hydroxyapatite composites">nanosheet-laminated hydroxyapatite composites</option>
+                                
+                                    <option value="glass-like temperature dependence">glass-like temperature dependence</option>
+                                
+                                    <option value="scattering events">scattering events</option>
+                                
+                                    <option value="elephant ivory">elephant ivory</option>
+                                
+                                    <option value="short pulses">short pulses</option>
+                                
+                                    <option value="a-chitin">a-chitin</option>
+                                
+                                    <option value="marine barnacles">marine barnacles</option>
+                                
+                                    <option value="convergent evolution">convergent evolution</option>
+                                
+                                    <option value="matrix phase">matrix phase</option>
+                                
+                                    <option value="buckling-like instability">buckling-like instability</option>
+                                
+                                    <option value="cyclic stick-slip motion">cyclic stick-slip motion</option>
+                                
+                                    <option value="behavior during pull-out">behavior during pull-out</option>
+                                
+                                    <option value="studies on hybrid interfaces">studies on hybrid interfaces</option>
+                                
+                                    <option value="valuable insights">valuable insights</option>
+                                
+                                    <option value="worm-like chain models">worm-like chain models</option>
+                                
+                                    <option value="mechanical strengthening">mechanical strengthening</option>
+                                
+                                    <option value="coconut shell">coconut shell</option>
+                                
+                                    <option value="coccoliths">coccoliths</option>
+                                
+                                    <option value="acetic acid treatment">acetic acid treatment</option>
+                                
+                                    <option value="antifade resin embedding">antifade resin embedding</option>
+                                
+                                    <option value="dialysis">dialysis</option>
+                                
+                                    <option value="fluorescent polymer mixing (pah-fl or paa-fr)">fluorescent polymer mixing (pah-fl or paa-fr)</option>
+                                
+                                    <option value="fluorophore labeling">fluorophore labeling</option>
+                                
+                                    <option value="structured illumination microscopy (sim)">structured illumination microscopy (sim)</option>
+                                
+                                    <option value="super resolution microscopy (srrf)">super resolution microscopy (srrf)</option>
+                                
+                                    <option value="bionic gradient properties">bionic gradient properties</option>
+                                
+                                    <option value="collection">collection</option>
+                                
+                                    <option value="devices for energy collection and reuse">devices for energy collection and reuse</option>
+                                
+                                    <option value="efficient collection and transportation of water">efficient collection and transportation of water</option>
+                                
+                                    <option value="energy collection and reuse based on bionic gradient properties">energy collection and reuse based on bionic gradient properties</option>
+                                
+                                    <option value="long-distance transportation and energy reuse">long-distance transportation and energy reuse</option>
+                                
+                                    <option value="micro controls">micro controls</option>
+                                
+                                    <option value="transportation">transportation</option>
+                                
+                                    <option value="oled panels">oled panels</option>
+                                
+                                    <option value="wet spinning">wet spinning</option>
+                                
+                                    <option value="accelerated healing by promoting angiogenesis and reducing oxidative stress">accelerated healing by promoting angiogenesis and reducing oxidative stress</option>
+                                
+                                    <option value="have shown potential applications in biomedical applications beyond tissue engineering">have shown potential applications in biomedical applications beyond tissue engineering</option>
+                                
+                                    <option value="have shown potential applications in biosensors and wound dressings">have shown potential applications in biosensors and wound dressings</option>
+                                
+                                    <option value="promoted the differentiation into bone tissue">promoted the differentiation into bone tissue</option>
+                                
+                                    <option value="bpca">bpca</option>
+                                
+                                    <option value="gel transition">gel transition</option>
+                                
+                                    <option value="preconditioning">preconditioning</option>
+                                
+                                    <option value="active electrochemistry materials">active electrochemistry materials</option>
+                                
+                                    <option value="electronic and energy storage/conversion applications">electronic and energy storage/conversion applications</option>
+                                
+                                    <option value="cell motility">cell motility</option>
+                                
+                                    <option value="focal adhesion complexes">focal adhesion complexes</option>
+                                
+                                    <option value="protein adsorption">protein adsorption</option>
+                                
+                                    <option value="superhydrophilicity">superhydrophilicity</option>
+                                
+                                    <option value="bioactive coating">bioactive coating</option>
+                                
+                                    <option value="interconnected carbon scaffolds">interconnected carbon scaffolds</option>
+                                
+                                    <option value="biomimetic applications">biomimetic applications</option>
+                                
+                                    <option value="viola tricolor">viola tricolor</option>
+                                
+                                    <option value="superwettability">superwettability</option>
+                                
+                                    <option value="convex to papillose cells">convex to papillose cells</option>
+                                
+                                    <option value="third level of sculptural complexity">third level of sculptural complexity</option>
+                                
+                                    <option value="sem imaging">sem imaging</option>
+                                
+                                    <option value="surrounding gas">surrounding gas</option>
+                                
+                                    <option value="liquid">liquid</option>
+                                
+                                    <option value="newtons per meter">newtons per meter</option>
+                                
+                                    <option value="un-wet surfaces">un-wet surfaces</option>
+                                
+                                    <option value="scaffold component">scaffold component</option>
+                                
+                                    <option value="conventional pre-sintering process">conventional pre-sintering process</option>
+                                
+                                    <option value="heterogeneous materials">heterogeneous materials</option>
+                                
+                                    <option value="material composition">material composition</option>
+                                
+                                    <option value="bioceramic material">bioceramic material</option>
+                                
+                                    <option value="atomistic deformation processes">atomistic deformation processes</option>
+                                
+                                    <option value="structure-material properties relationship">structure-material properties relationship</option>
+                                
+                                    <option value="optimized voronoi arrangement">optimized voronoi arrangement</option>
+                                
+                                    <option value="three-tier hierarchical lamellar structure">three-tier hierarchical lamellar structure</option>
+                                
+                                    <option value="first-order lamellae">first-order lamellae</option>
+                                
+                                    <option value="structural analogy">structural analogy</option>
+                                
+                                    <option value="work-of-fracture">work-of-fracture</option>
+                                
+                                    <option value="annually shed">annually shed</option>
+                                
+                                    <option value="testing method">testing method</option>
+                                
+                                    <option value="unconstrained setups">unconstrained setups</option>
+                                
+                                    <option value="cervids">cervids</option>
+                                
+                                    <option value="elongated">elongated</option>
+                                
+                                    <option value="high rigidity">high rigidity</option>
+                                
+                                    <option value="nacre-like ceramics">nacre-like ceramics</option>
+                                
+                                    <option value="longitudinal direction">longitudinal direction</option>
+                                
+                                    <option value="71%">71%</option>
+                                
+                                    <option value="stress wave focusing">stress wave focusing</option>
+                                
+                                    <option value="ef">ef</option>
+                                
+                                    <option value="rhamphotheca_layer">rhamphotheca_layer</option>
+                                
+                                    <option value="shearing_mechanism">shearing_mechanism</option>
+                                
+                                    <option value="stacking_morphology">stacking_morphology</option>
+                                
+                                    <option value="vf">vf</option>
+                                
+                                    <option value="greater_number_of_scales">greater_number_of_scales</option>
+                                
+                                    <option value="strength gradient">strength gradient</option>
+                                
+                                    <option value="thinner_scales">thinner_scales</option>
+                                
+                                    <option value="alternating deflection">alternating deflection</option>
+                                
+                                    <option value="centrifugal electrospinning">centrifugal electrospinning</option>
+                                
+                                    <option value="dual-opposite-spinneet electrospinning">dual-opposite-spinneet electrospinning</option>
+                                
+                                    <option value="gap">gap</option>
+                                
+                                    <option value="magnetic electrospinning">magnetic electrospinning</option>
+                                
+                                    <option value="rotating auxiliary electrodes">rotating auxiliary electrodes</option>
+                                
+                                    <option value="enamel- or bone-like apatite">enamel- or bone-like apatite</option>
+                                
+                                    <option value="enhanced cell viability and proliferation">enhanced cell viability and proliferation</option>
+                                
+                                    <option value="improved cellular response">improved cellular response</option>
+                                
+                                    <option value="promoted stem cell differentiation">promoted stem cell differentiation</option>
+                                
+                                    <option value="resorbable scaffolds">resorbable scaffolds</option>
+                                
+                                    <option value="nanocages">nanocages</option>
+                                
+                                    <option value="x-ray photoelectron spectroscopy">x-ray photoelectron spectroscopy</option>
+                                
+                                    <option value="zn-based mof@ms nanoparticles">zn-based mof@ms nanoparticles</option>
+                                
+                                    <option value="ms suspension">ms suspension</option>
+                                
+                                    <option value="optimally adhered fibers">optimally adhered fibers</option>
+                                
+                                    <option value="high torsional toughness">high torsional toughness</option>
+                                
+                                    <option value="pore circularity">pore circularity</option>
+                                
+                                    <option value="stalk wall thickness-to-diameter">stalk wall thickness-to-diameter</option>
+                                
+                                    <option value="micro-cracks">micro-cracks</option>
+                                
+                                    <option value="piezoelectric sensors">piezoelectric sensors</option>
+                                
+                                    <option value="pressure sensing">pressure sensing</option>
+                                
+                                    <option value="self-powered sensing devices">self-powered sensing devices</option>
+                                
+                                    <option value="strain sensing">strain sensing</option>
+                                
+                                    <option value="all-weather use">all-weather use</option>
+                                
+                                    <option value="hollow and hierarchical structures">hollow and hierarchical structures</option>
+                                
+                                    <option value="strong hierarchical structure">strong hierarchical structure</option>
+                                
+                                    <option value="sunflower pollen microcapsules">sunflower pollen microcapsules</option>
+                                
+                                    <option value="superhydrophobicity">superhydrophobicity</option>
+                                
+                                    <option value="endurance">endurance</option>
+                                
+                                    <option value="artificial skin">artificial skin</option>
+                                
+                                    <option value="body motion detection">body motion detection</option>
+                                
+                                    <option value="healthcare monitoring">healthcare monitoring</option>
+                                
+                                    <option value="por energy harvesting">por energy harvesting</option>
+                                
+                                    <option value="water harvesting systems">water harvesting systems</option>
+                                
+                                    <option value="composite sensors">composite sensors</option>
+                                
+                                    <option value="knit sensor technology">knit sensor technology</option>
+                                
+                                    <option value="nonacosan-10-ol tubules">nonacosan-10-ol tubules</option>
+                                
+                                    <option value="electric field assisted 3d printing">electric field assisted 3d printing</option>
+                                
+                                    <option value="traditional 3d printing methods">traditional 3d printing methods</option>
+                                
+                                    <option value="cnf-based nanocomposites">cnf-based nanocomposites</option>
+                                
+                                    <option value="cnf-derived conductive networks">cnf-derived conductive networks</option>
+                                
+                                    <option value="dip coating">dip coating</option>
+                                
+                                    <option value="conductive fillers">conductive fillers</option>
+                                
+                                    <option value="poly(aniline)">poly(aniline)</option>
+                                
+                                    <option value="ag nanowires">ag nanowires</option>
+                                
+                                    <option value="machine learning algorithms">machine learning algorithms</option>
+                                
+                                    <option value="reinforcement learning algorithms">reinforcement learning algorithms</option>
+                                
+                                    <option value="supervised learning algorithms">supervised learning algorithms</option>
+                                
+                                    <option value="unsupervised learning algorithms">unsupervised learning algorithms</option>
+                                
+                                    <option value="actor-critic methods">actor-critic methods</option>
+                                
+                                    <option value="deep q-networks (dqns)">deep q-networks (dqns)</option>
+                                
+                                    <option value="deep reinforcement learning algorithms">deep reinforcement learning algorithms</option>
+                                
+                                    <option value="policy gradient methods">policy gradient methods</option>
+                                
+                                    <option value="q-learning">q-learning</option>
+                                
+                                    <option value="decision trees">decision trees</option>
+                                
+                                    <option value="gradient boosting machines">gradient boosting machines</option>
+                                
+                                    <option value="logistic regression">logistic regression</option>
+                                
+                                    <option value="random forests">random forests</option>
+                                
+                                    <option value="support vector machines (svms)">support vector machines (svms)</option>
+                                
+                                    <option value="autoencoders">autoencoders</option>
+                                
+                                    <option value="k-means clustering">k-means clustering</option>
+                                
+                                    <option value="background noise">background noise</option>
+                                
+                                    <option value="protofilaments">protofilaments</option>
+                                
+                                    <option value="e_fa">e_fa</option>
+                                
+                                    <option value="l_f">l_f</option>
+                                
+                                    <option value="mounting medium">mounting medium</option>
+                                
+                                    <option value="stiff mounting medium">stiff mounting medium</option>
+                                
+                                    <option value="viscoelastic recovery">viscoelastic recovery</option>
+                                
+                                    <option value="u-fiber">u-fiber</option>
+                                
+                                    <option value="physiological conditions">physiological conditions</option>
+                                
+                                    <option value="cancer treatment">cancer treatment</option>
+                                
+                                    <option value="target properties">target properties</option>
+                                
+                                    <option value="programmable properties">programmable properties</option>
+                                
+                                    <option value="transdermal drug delivery">transdermal drug delivery</option>
+                                
+                                    <option value="cs-hydroxyapatite superporous nanocomposite hydrogels">cs-hydroxyapatite superporous nanocomposite hydrogels</option>
+                                
+                                    <option value="interfacial gaps">interfacial gaps</option>
+                                
+                                    <option value="phase segregation">phase segregation</option>
+                                
+                                    <option value="polyurethane matrix">polyurethane matrix</option>
+                                
+                                    <option value="transmission electron microscopy (tem) images">transmission electron microscopy (tem) images</option>
+                                
+                                    <option value="positively charged polyallylamine">positively charged polyallylamine</option>
+                                
+                                    <option value="fluorescently labeled polymer">fluorescently labeled polymer</option>
+                                
+                                    <option value="nfsk surface">nfsk surface</option>
+                                
+                                    <option value="narrow notch">narrow notch</option>
+                                
+                                    <option value="alumina-al-si hybrid composites">alumina-al-si hybrid composites</option>
+                                
+                                    <option value="ceramic-based materials">ceramic-based materials</option>
+                                
+                                    <option value="lower energy dissipation">lower energy dissipation</option>
+                                
+                                    <option value="t fracture">t fracture</option>
+                                
+                                    <option value="removal or movement of magnet">removal or movement of magnet</option>
+                                
+                                    <option value="1500 n impact force">1500 n impact force</option>
+                                
+                                    <option value="selective manipulation">selective manipulation</option>
+                                
+                                    <option value="governing mechanisms">governing mechanisms</option>
+                                
+                                    <option value="high-impact polystyrene">high-impact polystyrene</option>
+                                
+                                    <option value="hybrid designs">hybrid designs</option>
+                                
+                                    <option value="optimized voronoi diagram">optimized voronoi diagram</option>
+                                
+                                    <option value="polyethylene terephthalate">polyethylene terephthalate</option>
+                                
+                                    <option value="advanced multi-material 3d printing">advanced multi-material 3d printing</option>
+                                
+                                    <option value="superhydrophilic and underwater superoleophobic micro/nanoscale hierarchical-structured fabric membranes">superhydrophilic and underwater superoleophobic micro/nanoscale hierarchical-structured fabric membranes</option>
+                                
+                                    <option value="initial hydrophobicity">initial hydrophobicity</option>
+                                
+                                    <option value="microscale porosity">microscale porosity</option>
+                                
+                                    <option value="superabsorbency">superabsorbency</option>
+                                
+                                    <option value="underwater self-cleaning">underwater self-cleaning</option>
+                                
+                                    <option value="temporarily hydrophobic">temporarily hydrophobic</option>
+                                
+                                    <option value="intrinsic microscale holes">intrinsic microscale holes</option>
+                                
+                                    <option value="oil/water separation">oil/water separation</option>
+                                
+                                    <option value="anti-fouling characteristics">anti-fouling characteristics</option>
+                                
+                                    <option value="non-cytotoxicity">non-cytotoxicity</option>
+                                
+                                    <option value="innermost guidance">innermost guidance</option>
+                                
+                                    <option value="intricate micro- and macroscopic constructs">intricate micro- and macroscopic constructs</option>
+                                
+                                    <option value="nerve guidance conduits">nerve guidance conduits</option>
+                                
+                                    <option value="pgn">pgn</option>
+                                
+                                    <option value="photoactive nanofillers">photoactive nanofillers</option>
+                                
+                                    <option value="photocurable resin">photocurable resin</option>
+                                
+                                    <option value="precise mechanical properties">precise mechanical properties</option>
+                                
+                                    <option value="precise printing of structures">precise printing of structures</option>
+                                
+                                    <option value="projector light">projector light</option>
+                                
+                                    <option value="toxic photointitators">toxic photointitators</option>
+                                
+                                    <option value="bte">bte</option>
+                                
+                                    <option value="fda">fda</option>
+                                
+                                    <option value="vat photopolymerization">vat photopolymerization</option>
+                                
+                                    <option value="uv or visible light">uv or visible light</option>
+                                
+                                    <option value="cyclic stability">cyclic stability</option>
+                                
+                                    <option value="0.5">0.5</option>
+                                
+                                    <option value="angle of incidence">angle of incidence</option>
+                                
+                                    <option value="effective refractive index">effective refractive index</option>
+                                
+                                    <option value="lasers">lasers</option>
+                                
+                                    <option value="lateral periodicity">lateral periodicity</option>
+                                
+                                    <option value="periodic surface structures">periodic surface structures</option>
+                                
+                                    <option value="ripples">ripples</option>
+                                
+                                    <option value="grooves">grooves</option>
+                                
+                                    <option value="nature's camouflage principles">nature's camouflage principles</option>
+                                
+                                    <option value="angle">angle</option>
+                                
+                                    <option value="chemical effects">chemical effects</option>
+                                
+                                    <option value="laser wavelength">laser wavelength</option>
+                                
+                                    <option value="linearly polarized light">linearly polarized light</option>
+                                
+                                    <option value="optical effects">optical effects</option>
+                                
+                                    <option value="period">period</option>
+                                
+                                    <option value="thermal effects">thermal effects</option>
+                                
+                                    <option value="nanoscale wrinkles">nanoscale wrinkles</option>
+                                
+                                    <option value="complexity of bone biology defined by living cells within such calcified nanostructures">complexity of bone biology defined by living cells within such calcified nanostructures</option>
+                                
+                                    <option value="gradient weight ratio">gradient weight ratio</option>
+                                
+                                    <option value="magnetic field distance">magnetic field distance</option>
+                                
+                                    <option value="magnetic field exposure time">magnetic field exposure time</option>
+                                
+                                    <option value="increase">increase</option>
+                                
+                                    <option value="damage distribution">damage distribution</option>
+                                
+                                    <option value="strong excitonic correlations">strong excitonic correlations</option>
+                                
+                                    <option value="inner cylinder">inner cylinder</option>
+                                
+                                    <option value="absence of a surrounding outer cylinder">absence of a surrounding outer cylinder</option>
+                                
+                                    <option value="higher-energy transitions">higher-energy transitions</option>
+                                
+                                    <option value="some functional amyloid fibrils">some functional amyloid fibrils</option>
+                                
+                                    <option value="chemical binding ability">chemical binding ability</option>
+                                
+                                    <option value="metallic implants">metallic implants</option>
+                                
+                                    <option value="natural enamel surfaces">natural enamel surfaces</option>
+                                
+                                    <option value="acidic solutions">acidic solutions</option>
+                                
+                                    <option value="mass loss rate">mass loss rate</option>
+                                
+                                    <option value="mineral loss">mineral loss</option>
+                                
+                                    <option value="joint failure">joint failure</option>
+                                
+                                    <option value="key stress components">key stress components</option>
+                                
+                                    <option value="key stress levels">key stress levels</option>
+                                
+                                    <option value="synchrotron x-ray characterization techniques">synchrotron x-ray characterization techniques</option>
+                                
+                                    <option value="sfhs">sfhs</option>
+                                
+                                    <option value="living systems">living systems</option>
+                                
+                                    <option value="bottom-up methods">bottom-up methods</option>
+                                
+                                    <option value="interconnected vascular bundles">interconnected vascular bundles</option>
+                                
+                                    <option value="steel-reid cells">steel-reid cells</option>
+                                
+                                    <option value="three-layered fruit wall structure">three-layered fruit wall structure</option>
+                                
+                                    <option value="endocarp samples">endocarp samples</option>
+                                
+                                    <option value="rectangular coconut endocarps">rectangular coconut endocarps</option>
+                                
+                                    <option value="high-performance ceramics">high-performance ceramics</option>
+                                
+                                    <option value="sea urchin h. mamillatus">sea urchin h. mamillatus</option>
+                                
+                                    <option value="growth layers">growth layers</option>
+                                
+                                    <option value="primary spines">primary spines</option>
+                                
+                                    <option value="spines">spines</option>
+                                
+                                    <option value="stereom">stereom</option>
+                                
+                                    <option value="low friction">low friction</option>
+                                
+                                    <option value="penetration">penetration</option>
+                                
+                                    <option value="mechanical behavior model">mechanical behavior model</option>
+                                
+                                    <option value="high mechanical performance">high mechanical performance</option>
+                                
+                                    <option value="layered platelets">layered platelets</option>
+                                
+                                    <option value="organic gaps">organic gaps</option>
+                                
+                                    <option value="nanocellulose components">nanocellulose components</option>
+                                
+                                    <option value="frequency shifts">frequency shifts</option>
+                                
+                                    <option value="histograms">histograms</option>
+                                
+                                    <option value="mechanical targeting">mechanical targeting</option>
+                                
+                                    <option value="viscoelastic schemes">viscoelastic schemes</option>
+                                
+                                    <option value="normal resident cells">normal resident cells</option>
+                                
+                                    <option value="hematopoietic cells">hematopoietic cells</option>
+                                
+                                    <option value="immune cells">immune cells</option>
+                                
+                                    <option value="adhesive grgds density">adhesive grgds density</option>
+                                
+                                    <option value="multicellular spheroids">multicellular spheroids</option>
+                                
+                                    <option value="burst gas vesicles">burst gas vesicles</option>
+                                
+                                    <option value="lotus root starch">lotus root starch</option>
+                                
+                                    <option value="microporous structure">microporous structure</option>
+                                
+                                    <option value="failure load">failure load</option>
+                                
+                                    <option value="cellular material layers">cellular material layers</option>
+                                
+                                    <option value="conventional mechanics of materials">conventional mechanics of materials</option>
+                                
+                                    <option value="linear elastic properties">linear elastic properties</option>
+                                
+                                    <option value="hierarchical cellular structures">hierarchical cellular structures</option>
+                                
+                                    <option value="unit hexagonal cell">unit hexagonal cell</option>
+                                
+                                    <option value="precise shapes">precise shapes</option>
+                                
+                                    <option value="3d-ice structures">3d-ice structures</option>
+                                
+                                    <option value="enhanced electrical and electrochemical performance">enhanced electrical and electrochemical performance</option>
+                                
+                                    <option value="macroscopic features">macroscopic features</option>
+                                
+                                    <option value="microscopic features">microscopic features</option>
+                                
+                                    <option value="water filtration">water filtration</option>
+                                
+                                    <option value="hollow fibers">hollow fibers</option>
+                                
+                                    <option value="paam">paam</option>
+                                
+                                    <option value="peaa">peaa</option>
+                                
+                                    <option value="thick adhesive layers">thick adhesive layers</option>
+                                
+                                    <option value="hardwoods">hardwoods</option>
+                                
+                                    <option value="parallel">parallel</option>
+                                
+                                    <option value="perpendicular">perpendicular</option>
+                                
+                                    <option value="hysteresis behavior">hysteresis behavior</option>
+                                
+                                    <option value="low-distance range">low-distance range</option>
+                                
+                                    <option value="sensitivity reduction">sensitivity reduction</option>
+                                
+                                    <option value="switching capability">switching capability</option>
+                                
+                                    <option value="poor construction materials">poor construction materials</option>
+                                
+                                    <option value="stable crack advance">stable crack advance</option>
+                                
+                                    <option value="r_curve_slope">r_curve_slope</option>
+                                
+                                    <option value="elastic plate theory">elastic plate theory</option>
+                                
+                                    <option value="nonlinear vibration">nonlinear vibration</option>
+                                
+                                    <option value="fully clamped at all edge boundaries during simulation">fully clamped at all edge boundaries during simulation</option>
+                                
+                                    <option value="dehydrated fascicle">dehydrated fascicle</option>
+                                
+                                    <option value="hydrated fascicle">hydrated fascicle</option>
+                                
+                                    <option value="crosslinks">crosslinks</option>
+                                
+                                    <option value="collagenfibrilpullout">collagenfibrilpullout</option>
+                                
+                                    <option value="collagenfibrilrupture">collagenfibrilrupture</option>
+                                
+                                    <option value="elasticstresstransfer">elasticstresstransfer</option>
+                                
+                                    <option value="fibrillateraldimension">fibrillateraldimension</option>
+                                
+                                    <option value="intermediatemodes">intermediatemodes</option>
+                                
+                                    <option value="pgmatrixrupture">pgmatrixrupture</option>
+                                
+                                    <option value="plasticstresstransfer">plasticstresstransfer</option>
+                                
+                                    <option value="taperedends">taperedends</option>
+                                
+                                    <option value="uniformcylindricalfibrils">uniformcylindricalfibrils</option>
+                                
+                                    <option value="understanding the role of individual tropocollagen molecules in tissue mechanics, disease, and injury requires insights into these mechanical properties, which can be gained through molecular dynamics simulations.">understanding the role of individual tropocollagen molecules in tissue mechanics, disease, and injury requires insights into these mechanical properties, which can be gained through molecular dynamics simulations.</option>
+                                
+                                    <option value="cyclodextrins (cd molecules)">cyclodextrins (cd molecules)</option>
+                                
+                                    <option value="association constant">association constant</option>
+                                
+                                    <option value="different cds (cyclodextrins)">different cds (cyclodextrins)</option>
+                                
+                                    <option value="guest molecules">guest molecules</option>
+                                
+                                    <option value="simplified purification">simplified purification</option>
+                                
+                                    <option value="stimuli-responsive behavior">stimuli-responsive behavior</option>
+                                
+                                    <option value="cel/sf composites">cel/sf composites</option>
+                                
+                                    <option value="nanoparticle loading">nanoparticle loading</option>
+                                
+                                    <option value="platinum nanoparticles">platinum nanoparticles</option>
+                                
+                                    <option value="adhesion failure mechanism">adhesion failure mechanism</option>
+                                
+                                    <option value="externalforces">externalforces</option>
+                                
+                                    <option value="initial inclination angle">initial inclination angle</option>
+                                
+                                    <option value="thickness gradient">thickness gradient</option>
+                                
+                                    <option value="elastomers">elastomers</option>
+                                
+                                    <option value="alternating layers">alternating layers</option>
+                                
+                                    <option value="metal fillers">metal fillers</option>
+                                
+                                    <option value="adhesion strength prediction methods">adhesion strength prediction methods</option>
+                                
+                                    <option value="mushroom-shaped fibril">mushroom-shaped fibril</option>
+                                
+                                    <option value="adhesion morphology">adhesion morphology</option>
+                                
+                                    <option value="polyvinyl siloxane">polyvinyl siloxane</option>
+                                
+                                    <option value="highly sensitive and flexible hierarchical structured photonic crystal ph sensor">highly sensitive and flexible hierarchical structured photonic crystal ph sensor</option>
+                                
+                                    <option value="micropillar fabrication laser source">micropillar fabrication laser source</option>
+                                
+                                    <option value="micropillar fabrication optical component">micropillar fabrication optical component</option>
+                                
+                                    <option value="micropillar fabrication positioning system">micropillar fabrication positioning system</option>
+                                
+                                    <option value="micropillar structure">micropillar structure</option>
+                                
+                                    <option value="extension">extension</option>
+                                
+                                    <option value="u_m">u_m</option>
+                                
+                                    <option value="persistence length">persistence length</option>
+                                
+                                    <option value="l_pl">l_pl</option>
+                                
+                                    <option value="subunit structure">subunit structure</option>
+                                
+                                    <option value="cholesteric structure">cholesteric structure</option>
+                                
+                                    <option value="transition point">transition point</option>
+                                
+                                    <option value="cnc/pva compositions (cnc/pva = 60/40 w/w)">cnc/pva compositions (cnc/pva = 60/40 w/w)</option>
+                                
+                                    <option value="hierarchical microscale features">hierarchical microscale features</option>
+                                
+                                    <option value="exceptional tensile strength">exceptional tensile strength</option>
+                                
+                                    <option value="aggrecan">aggrecan</option>
+                                
+                                    <option value="middle zone">middle zone</option>
+                                
+                                    <option value="native collagen">native collagen</option>
+                                
+                                    <option value="chitosan copolymers">chitosan copolymers</option>
+                                
+                                    <option value="gradient profile of refractive index">gradient profile of refractive index</option>
+                                
+                                    <option value="integumentary tissues">integumentary tissues</option>
+                                
+                                    <option value="energy efficiency">energy efficiency</option>
+                                
+                                    <option value="university">university</option>
+                                
+                                    <option value="renewable_resources">renewable_resources</option>
+                                
+                                    <option value="research grant">research grant</option>
+                                
+                                    <option value="chemical features">chemical features</option>
+                                
+                                    <option value="detailed morphological features">detailed morphological features</option>
+                                
+                                    <option value="structural motif">structural motif</option>
+                                
+                                    <option value="hard and soft constituents">hard and soft constituents</option>
+                                
+                                    <option value="human-computer interaction">human-computer interaction</option>
+                                
+                                    <option value="extensibility">extensibility</option>
+                                
+                                    <option value="spinning">spinning</option>
+                                
+                                    <option value="cellulose nanofibers (cnfs)">cellulose nanofibers (cnfs)</option>
+                                
+                                    <option value="longer and thicker cnfs">longer and thicker cnfs</option>
+                                
+                                    <option value="thin and short cnfs">thin and short cnfs</option>
+                                
+                                    <option value="humidified chamber">humidified chamber</option>
+                                
+                                    <option value="stretching">stretching</option>
+                                
+                                    <option value="continuous fibers">continuous fibers</option>
+                                
+                                    <option value="strain to failure">strain to failure</option>
+                                
+                                    <option value="nonlocal elasticity theory">nonlocal elasticity theory</option>
+                                
+                                    <option value="graphene's mechanical behavior under large deformations">graphene's mechanical behavior under large deformations</option>
+                                
+                                    <option value="surface waves in elastic materials">surface waves in elastic materials</option>
+                                
+                                    <option value="support structures">support structures</option>
+                                
+                                    <option value="biomaterial bioactivity">biomaterial bioactivity</option>
+                                
+                                    <option value="human trabecula bone">human trabecula bone</option>
+                                
+                                    <option value="compression resistance">compression resistance</option>
+                                
+                                    <option value="compression stiffness">compression stiffness</option>
+                                
+                                    <option value="compression stress-strain curve">compression stress-strain curve</option>
+                                
+                                    <option value="compression toughness">compression toughness</option>
+                                
+                                    <option value="compression work hardening">compression work hardening</option>
+                                
+                                    <option value="compression work hardening rate sensitivity exponent">compression work hardening rate sensitivity exponent</option>
+                                
+                                    <option value="compression work softening rate sensitivity exponent">compression work softening rate sensitivity exponent</option>
+                                
+                                    <option value="compression work softening rate sensitivity exponent sign sensitivity exponent">compression work softening rate sensitivity exponent sign sensitivity exponent</option>
+                                
+                                    <option value="concentric multi-walled cylinders">concentric multi-walled cylinders</option>
+                                
+                                    <option value="critical compression loading">critical compression loading</option>
+                                
+                                    <option value="low-shear-modulus materials">low-shear-modulus materials</option>
+                                
+                                    <option value="net cross-area">net cross-area</option>
+                                
+                                    <option value="post-buckling stage">post-buckling stage</option>
+                                
+                                    <option value="ultimate compressive stress">ultimate compressive stress</option>
+                                
+                                    <option value="resilin-inspired polymer network">resilin-inspired polymer network</option>
+                                
+                                    <option value="conformational properties">conformational properties</option>
+                                
+                                    <option value="distinct biological activities">distinct biological activities</option>
+                                
+                                    <option value="growth factor delivery">growth factor delivery</option>
+                                
+                                    <option value="material degradation">material degradation</option>
+                                
+                                    <option value="almost linear stress-strain responses">almost linear stress-strain responses</option>
+                                
+                                    <option value="cellulose-based hard phases">cellulose-based hard phases</option>
+                                
+                                    <option value="high elasticity">high elasticity</option>
+                                
+                                    <option value="poly(isoprene) soft phases">poly(isoprene) soft phases</option>
+                                
+                                    <option value="pani/cnt fiber for ssfs">pani/cnt fiber for ssfs</option>
+                                
+                                    <option value="bone matrix components">bone matrix components</option>
+                                
+                                    <option value="directional alignment">directional alignment</option>
+                                
+                                    <option value="oriented growth">oriented growth</option>
+                                
+                                    <option value="fraction of dry mass invested in support (f)">fraction of dry mass invested in support (f)</option>
+                                
+                                    <option value="tensile modulus of elasticity (e) of whole leaf">tensile modulus of elasticity (e) of whole leaf</option>
+                                
+                                    <option value="leaf area">leaf area</option>
+                                
+                                    <option value="leaf lamina mass per area">leaf lamina mass per area</option>
+                                
+                                    <option value="leaf mass per unit area (lma)">leaf mass per unit area (lma)</option>
+                                
+                                    <option value="midrib diameter">midrib diameter</option>
+                                
+                                    <option value="relative leaf dry matter content (rlaf)">relative leaf dry matter content (rlaf)</option>
+                                
+                                    <option value="flexural stiffness (d) of leaf lamina">flexural stiffness (d) of leaf lamina</option>
+                                
+                                    <option value="tensile strength (σ) of leaf lamina">tensile strength (σ) of leaf lamina</option>
+                                
+                                    <option value="flexural stiffness (d) of whole leaf">flexural stiffness (d) of whole leaf</option>
+                                
+                                    <option value="tensile strength (σ) of whole leaf">tensile strength (σ) of whole leaf</option>
+                                
+                                    <option value="continuously varying diameters">continuously varying diameters</option>
+                                
+                                    <option value="gravitational forces">gravitational forces</option>
+                                
+                                    <option value="printing technique">printing technique</option>
+                                
+                                    <option value="transitions">transitions</option>
+                                
+                                    <option value="vein architecture">vein architecture</option>
+                                
+                                    <option value="ecological background">ecological background</option>
+                                
+                                    <option value="growth conditions">growth conditions</option>
+                                
+                                    <option value="bending displacement">bending displacement</option>
+                                
+                                    <option value="displacement gradient">displacement gradient</option>
+                                
+                                    <option value="chemical elements">chemical elements</option>
+                                
+                                    <option value="learning from nature's materials">learning from nature's materials</option>
+                                
+                                    <option value="structure-mechanical relationships">structure-mechanical relationships</option>
+                                
+                                    <option value="spikes">spikes</option>
+                                
+                                    <option value="above surface growth (asg) mounds">above surface growth (asg) mounds</option>
+                                
+                                    <option value="below surface growth (bsg) mounds">below surface growth (bsg) mounds</option>
+                                
+                                    <option value="chaotic morphological pattern">chaotic morphological pattern</option>
+                                
+                                    <option value="coarse spikes">coarse spikes</option>
+                                
+                                    <option value="groove-covered profile">groove-covered profile</option>
+                                
+                                    <option value="height of grooves">height of grooves</option>
+                                
+                                    <option value="height of protruding structures">height of protruding structures</option>
+                                
+                                    <option value="hydrothermal waves">hydrothermal waves</option>
+                                
+                                    <option value="local protrusions">local protrusions</option>
+                                
+                                    <option value="nanoscale particle clusters">nanoscale particle clusters</option>
+                                
+                                    <option value="nanoscale particles">nanoscale particles</option>
+                                
+                                    <option value="non-ablated steel">non-ablated steel</option>
+                                
+                                    <option value="polycrystalline structure">polycrystalline structure</option>
+                                
+                                    <option value="pseudoripples">pseudoripples</option>
+                                
+                                    <option value="redeposited nanops">redeposited nanops</option>
+                                
+                                    <option value="smaller spikes">smaller spikes</option>
+                                
+                                    <option value="spike formation">spike formation</option>
+                                
+                                    <option value="desired patterns">desired patterns</option>
+                                
+                                    <option value="bioreactors">bioreactors</option>
+                                
+                                    <option value="cell-material interactions">cell-material interactions</option>
+                                
+                                    <option value="connections between tissues">connections between tissues</option>
+                                
+                                    <option value="localized density">localized density</option>
+                                
+                                    <option value="mechanical stimulation">mechanical stimulation</option>
+                                
+                                    <option value="oxygen tension">oxygen tension</option>
+                                
+                                    <option value="tissue maturation">tissue maturation</option>
+                                
+                                    <option value="synergistic toughening effect">synergistic toughening effect</option>
+                                
+                                    <option value="graphene nanocomposites">graphene nanocomposites</option>
+                                
+                                    <option value="poly(dopamine) (pgo)">poly(dopamine) (pgo)</option>
+                                
+                                    <option value="polyetherimide (pei)">polyetherimide (pei)</option>
+                                
+                                    <option value="coordinate covalent bonds">coordinate covalent bonds</option>
+                                
+                                    <option value="dermal layer">dermal layer</option>
+                                
+                                    <option value="strains">strains</option>
+                                
+                                    <option value="epidermis (viable)">epidermis (viable)</option>
+                                
+                                    <option value="lower median proportional strain values">lower median proportional strain values</option>
+                                
+                                    <option value="light-skin interactions">light-skin interactions</option>
+                                
+                                    <option value="fo">fo</option>
+                                
+                                    <option value="desired resolution">desired resolution</option>
+                                
+                                    <option value="jaw-adductor muscles">jaw-adductor muscles</option>
+                                
+                                    <option value="rabbits">rabbits</option>
+                                
+                                    <option value="type ii muscle fibres">type ii muscle fibres</option>
+                                
+                                    <option value="hay consumption">hay consumption</option>
+                                
+                                    <option value="absence">absence</option>
+                                
+                                    <option value="evidence">evidence</option>
+                                
+                                    <option value="functional adaptations">functional adaptations</option>
+                                
+                                    <option value="shape memory">shape memory</option>
+                                
+                                    <option value="highly mineralized biocomposite">highly mineralized biocomposite</option>
+                                
+                                    <option value="mastication stresses">mastication stresses</option>
+                                
+                                    <option value="non-linear elasticity">non-linear elasticity</option>
+                                
+                                    <option value="softening">softening</option>
+                                
+                                    <option value="three-dimensional cohesive zone approach">three-dimensional cohesive zone approach</option>
+                                
+                                    <option value="computational predictions">computational predictions</option>
+                                
+                                    <option value="bulk structure">bulk structure</option>
+                                
+                                    <option value="dentin layer">dentin layer</option>
+                                
+                                    <option value="enamel layer">enamel layer</option>
+                                
+                                    <option value="whole-scale morphology">whole-scale morphology</option>
+                                
+                                    <option value="research">research</option>
+                                
+                                    <option value="surface engineering">surface engineering</option>
+                                
+                                    <option value="fluorescein-5-thiosemicarbazide">fluorescein-5-thiosemicarbazide</option>
+                                
+                                    <option value="biological compounds">biological compounds</option>
+                                
+                                    <option value="biosensors">biosensors</option>
+                                
+                                    <option value="c-reactive protein">c-reactive protein</option>
+                                
+                                    <option value="homogeneous immunoassay">homogeneous immunoassay</option>
+                                
+                                    <option value="key markers">key markers</option>
+                                
+                                    <option value="large pore volume">large pore volume</option>
+                                
+                                    <option value="macroporous materials">macroporous materials</option>
+                                
+                                    <option value="biomineralization ions">biomineralization ions</option>
+                                
+                                    <option value="ionic block for biomineralization control">ionic block for biomineralization control</option>
+                                
+                                    <option value="specific biomineralization locations">specific biomineralization locations</option>
+                                
+                                    <option value="polymer nanocrystals">polymer nanocrystals</option>
+                                
+                                    <option value="controlled environment for biomineralization deposition">controlled environment for biomineralization deposition</option>
+                                
+                                    <option value="traditional 'shish kebabs'">traditional 'shish kebabs'</option>
+                                
+                                    <option value="fiber size dependence">fiber size dependence</option>
+                                
+                                    <option value="multiple crystal orientations">multiple crystal orientations</option>
+                                
+                                    <option value="nfsk structures with electrospun polymer shish">nfsk structures with electrospun polymer shish</option>
+                                
+                                    <option value="smaller fiber diameters">smaller fiber diameters</option>
+                                
+                                    <option value="enamel matrix proteins (emps)">enamel matrix proteins (emps)</option>
+                                
+                                    <option value="parallel arrays of microtubules">parallel arrays of microtubules</option>
+                                
+                                    <option value="0'/90'/0'/90'">0'/90'/0'/90'</option>
+                                
+                                    <option value="various forms of architectures">various forms of architectures</option>
+                                
+                                    <option value="0'/90'/0'">0'/90'/0'</option>
+                                
+                                    <option value="15'/75'/0' quasi-sandwich">15'/75'/0' quasi-sandwich</option>
+                                
+                                    <option value="crossed-lamellar structure">crossed-lamellar structure</option>
+                                
+                                    <option value="cross-ply feature">cross-ply feature</option>
+                                
+                                    <option value="strength-toughness trade-off dilemma">strength-toughness trade-off dilemma</option>
+                                
+                                    <option value="sub-lamellae">sub-lamellae</option>
+                                
+                                    <option value="mollusk shells with multiple macro-layers">mollusk shells with multiple macro-layers</option>
+                                
+                                    <option value="vetned rapa whelk shell">vetned rapa whelk shell</option>
+                                
+                                    <option value="natural composite structure">natural composite structure</option>
+                                
+                                    <option value="ed orientations">ed orientations</option>
+                                
+                                    <option value="optical-sandwich">optical-sandwich</option>
+                                
+                                    <option value="caco3 templates">caco3 templates</option>
+                                
+                                    <option value="gas storage">gas storage</option>
+                                
+                                    <option value="oleic acid-modified caco3 particles">oleic acid-modified caco3 particles</option>
+                                
+                                    <option value="paraffin oil">paraffin oil</option>
+                                
+                                    <option value="pvp">pvp</option>
+                                
+                                    <option value="teos">teos</option>
+                                
+                                    <option value="modified caco3 particles">modified caco3 particles</option>
+                                
+                                    <option value="consistent_strain_rate_effect">consistent_strain_rate_effect</option>
+                                
+                                    <option value="drying_effects_during_testing">drying_effects_during_testing</option>
+                                
+                                    <option value="ductile-to-brittle_transition">ductile-to-brittle_transition</option>
+                                
+                                    <option value="elastomer-like_behavior">elastomer-like_behavior</option>
+                                
+                                    <option value="maximum_stress">maximum_stress</option>
+                                
+                                    <option value="severe_plastic_damage">severe_plastic_damage</option>
+                                
+                                    <option value="unique composition">unique composition</option>
+                                
+                                    <option value="lithium-ion battery electrodes">lithium-ion battery electrodes</option>
+                                
+                                    <option value="dome-like protuberances">dome-like protuberances</option>
+                                
+                                    <option value="miniaturized suction cups">miniaturized suction cups</option>
+                                
+                                    <option value="frictional shear strength">frictional shear strength</option>
+                                
+                                    <option value="normal adhesion strength">normal adhesion strength</option>
+                                
+                                    <option value="pdms micro suction cups">pdms micro suction cups</option>
+                                
+                                    <option value="gradual reduction in elastic modulus">gradual reduction in elastic modulus</option>
+                                
+                                    <option value="limited adhesion strength">limited adhesion strength</option>
+                                
+                                    <option value="soft electrode structure">soft electrode structure</option>
+                                
+                                    <option value="the kim group">the kim group</option>
+                                
+                                    <option value="aligned branches">aligned branches</option>
+                                
+                                    <option value="cone-like morphology">cone-like morphology</option>
+                                
+                                    <option value="distance from substrate">distance from substrate</option>
+                                
+                                    <option value="pyriform silk fibers">pyriform silk fibers</option>
+                                
+                                    <option value="reduced adhesion strength">reduced adhesion strength</option>
+                                
+                                    <option value="fully attached substrate">fully attached substrate</option>
+                                
+                                    <option value="greater peeling line">greater peeling line</option>
+                                
+                                    <option value="high adhesion strength">high adhesion strength</option>
+                                
+                                    <option value="higher delamination strength">higher delamination strength</option>
+                                
+                                    <option value="initial number of contacts">initial number of contacts</option>
+                                
+                                    <option value="plane morphology">plane morphology</option>
+                                
+                                    <option value="staple-pin adhesive anchorage">staple-pin adhesive anchorage</option>
+                                
+                                    <option value="protein mechanics">protein mechanics</option>
+                                
+                                    <option value="traditional md simulations">traditional md simulations</option>
+                                
+                                    <option value="mechanical strength properties">mechanical strength properties</option>
+                                
+                                    <option value="material hierarchy">material hierarchy</option>
+                                
+                                    <option value="subunits">subunits</option>
+                                
+                                    <option value="redox potentials">redox potentials</option>
+                                
+                                    <option value="alumina nanoparticles">alumina nanoparticles</option>
+                                
+                                    <option value="nickel-chromium alloy matrices">nickel-chromium alloy matrices</option>
+                                
+                                    <option value="enhanced electrolyte uptake capabilities">enhanced electrolyte uptake capabilities</option>
+                                
+                                    <option value="pvdf/pe/pvdf porous separator">pvdf/pe/pvdf porous separator</option>
+                                
+                                    <option value="allomimus argo">allomimus argo</option>
+                                
+                                    <option value="load application rate">load application rate</option>
+                                
+                                    <option value="nautilus pomplius">nautilus pomplius</option>
+                                
+                                    <option value="inner nacreous ultrastructure">inner nacreous ultrastructure</option>
+                                
+                                    <option value="understanding ecology">understanding ecology</option>
+                                
+                                    <option value="four right femurs">four right femurs</option>
+                                
+                                    <option value="large cortical bone pieces">large cortical bone pieces</option>
+                                
+                                    <option value="instron 3342">instron 3342</option>
+                                
+                                    <option value="low-strain-rate">low-strain-rate</option>
+                                
+                                    <option value="universal-testing-machine-shimadzu-ez-lx">universal-testing-machine-shimadzu-ez-lx</option>
+                                
+                                    <option value="acoustic impedance z">acoustic impedance z</option>
+                                
+                                    <option value="amide i intensity">amide i intensity</option>
+                                
+                                    <option value="['adjacent interstitial domains']">['adjacent interstitial domains']</option>
+                                
+                                    <option value="scaffolds with post-printing modifications">scaffolds with post-printing modifications</option>
+                                
+                                    <option value="scaffolds with preprint modification">scaffolds with preprint modification</option>
+                                
+                                    <option value="sustained-release profile">sustained-release profile</option>
+                                
+                                    <option value="bactericidal properties">bactericidal properties</option>
+                                
+                                    <option value="atrial samples">atrial samples</option>
+                                
+                                    <option value="three-way anova">three-way anova</option>
+                                
+                                    <option value="meridional samples">meridional samples</option>
+                                
+                                    <option value="sample orientation">sample orientation</option>
+                                
+                                    <option value="arch-shaped samples">arch-shaped samples</option>
+                                
+                                    <option value="constrained setups">constrained setups</option>
+                                
+                                    <option value="parallel oriented samples">parallel oriented samples</option>
+                                
+                                    <option value="fracture force">fracture force</option>
+                                
+                                    <option value="opportunities">opportunities</option>
+                                
+                                    <option value="requirements">requirements</option>
+                                
+                                    <option value="ceramic and ceramic/metal structural materials">ceramic and ceramic/metal structural materials</option>
+                                
+                                    <option value="in situ pore generation">in situ pore generation</option>
+                                
+                                    <option value="hollow nanoparticles">hollow nanoparticles</option>
+                                
+                                    <option value="controlled oxidation">controlled oxidation</option>
+                                
+                                    <option value="air layers">air layers</option>
+                                
+                                    <option value="qk peptide">qk peptide</option>
+                                
+                                    <option value="p size">p size</option>
+                                
+                                    <option value="spherical shape">spherical shape</option>
+                                
+                                    <option value="natural fiber-bearing plants">natural fiber-bearing plants</option>
+                                
+                                    <option value="hackling">hackling</option>
+                                
+                                    <option value="scutching">scutching</option>
+                                
+                                    <option value="decortication">decortication</option>
+                                
+                                    <option value="hammer milling">hammer milling</option>
+                                
+                                    <option value="roller milling">roller milling</option>
+                                
+                                    <option value="retting">retting</option>
+                                
+                                    <option value="ductile-ligament bridging">ductile-ligament bridging</option>
+                                
+                                    <option value="soft matrix phase">soft matrix phase</option>
+                                
+                                    <option value="volume fraction of ductile phase">volume fraction of ductile phase</option>
+                                
+                                    <option value="anions">anions</option>
+                                
+                                    <option value="sf dissolution efficiency">sf dissolution efficiency</option>
+                                
+                                    <option value="pva chain">pva chain</option>
+                                
+                                    <option value="cations">cations</option>
+                                
+                                    <option value="concentrationdependence">concentrationdependence</option>
+                                
+                                    <option value="intrinsicantioxidantproperty">intrinsicantioxidantproperty</option>
+                                
+                                    <option value="reducesdpphradicals">reducesdpphradicals</option>
+                                
+                                    <option value="peptide">peptide</option>
+                                
+                                    <option value="antioxidant activity">antioxidant activity</option>
+                                
+                                    <option value="spontaneous formation of b-sheet secondary structures">spontaneous formation of b-sheet secondary structures</option>
+                                
+                                    <option value="t13">t13</option>
+                                
+                                    <option value="rada16">rada16</option>
+                                
+                                    <option value="ayhkkcgrysycwipydierdrydng dkkc">ayhkkcgrysycwipydierdrydng dkkc</option>
+                                
+                                    <option value="pearlin_n16">pearlin_n16</option>
+                                
+                                    <option value="eydydddsddddewdg">eydydddsddddewdg</option>
+                                
+                                    <option value="ms160">ms160</option>
+                                
+                                    <option value="n14">n14</option>
+                                
+                                    <option value="calcium_binding_sense">calcium_binding_sense</option>
+                                
+                                    <option value="mytilus_edulis">mytilus_edulis</option>
+                                
+                                    <option value="pinctada_margaritifera">pinctada_margaritifera</option>
+                                
+                                    <option value="pmarg-pearlin">pmarg-pearlin</option>
+                                
+                                    <option value="yqkcarywycwlpydierdryddgy rlcc">yqkcarywycwlpydierdryddgy rlcc</option>
+                                
+                                    <option value="laser-guided direct laser writing">laser-guided direct laser writing</option>
+                                
+                                    <option value="cell axis">cell axis</option>
+                                
+                                    <option value="magnetite crystallites">magnetite crystallites</option>
+                                
+                                    <option value="freechain">freechain</option>
+                                
+                                    <option value="earth's magnetic field">earth's magnetic field</option>
+                                
+                                    <option value="magnetically guided bacteria">magnetically guided bacteria</option>
+                                
+                                    <option value="flagella">flagella</option>
+                                
+                                    <option value="freiburg munster">freiburg munster</option>
+                                
+                                    <option value="photographic negative">photographic negative</option>
+                                
+                                    <option value="resist coating">resist coating</option>
+                                
+                                    <option value="patterned mask">patterned mask</option>
+                                
+                                    <option value="magnetic guidance">magnetic guidance</option>
+                                
+                                    <option value="magnetosomes">magnetosomes</option>
+                                
+                                    <option value="polymeric substances">polymeric substances</option>
+                                
+                                    <option value="interlocked mosaic structure">interlocked mosaic structure</option>
+                                
+                                    <option value="near outer surface">near outer surface</option>
+                                
+                                    <option value="fib-sem">fib-sem</option>
+                                
+                                    <option value="3 orthogonal planes">3 orthogonal planes</option>
+                                
+                                    <option value="natural outer surface">natural outer surface</option>
+                                
+                                    <option value="sem images">sem images</option>
+                                
+                                    <option value="size and spacing of micropores">size and spacing of micropores</option>
+                                
+                                    <option value="shell surface">shell surface</option>
+                                
+                                    <option value="outer shell surface">outer shell surface</option>
+                                
+                                    <option value="apparent discontinuities">apparent discontinuities</option>
+                                
+                                    <option value="2d planes">2d planes</option>
+                                
+                                    <option value="continuous">continuous</option>
+                                
+                                    <option value="straight">straight</option>
+                                
+                                    <option value="visible helix">visible helix</option>
+                                
+                                    <option value="columnar nacre">columnar nacre</option>
+                                
+                                    <option value="slider">slider</option>
+                                
+                                    <option value="stator">stator</option>
+                                
+                                    <option value="dielectric strength">dielectric strength</option>
+                                
+                                    <option value="ebm-printed scaffolds">ebm-printed scaffolds</option>
+                                
+                                    <option value="guanine crystals">guanine crystals</option>
+                                
+                                    <option value="[10]">[10]</option>
+                                
+                                    <option value="swimming">swimming</option>
+                                
+                                    <option value="wake signatures">wake signatures</option>
+                                
+                                    <option value="average gabriel penalty distance">average gabriel penalty distance</option>
+                                
+                                    <option value="flow field comparison algorithm">flow field comparison algorithm</option>
+                                
+                                    <option value="binary integer programs">binary integer programs</option>
+                                
+                                    <option value="matching problem">matching problem</option>
+                                
+                                    <option value="critical points">critical points</option>
+                                
+                                    <option value="gabriel graphs">gabriel graphs</option>
+                                
+                                    <option value="position variations">position variations</option>
+                                
+                                    <option value="random shifts">random shifts</option>
+                                
+                                    <option value="algorithm">algorithm</option>
+                                
+                                    <option value="gabriel penalty">gabriel penalty</option>
+                                
+                                    <option value="matching">matching</option>
+                                
+                                    <option value="total direction penalty">total direction penalty</option>
+                                
+                                    <option value="method">method</option>
+                                
+                                    <option value="viscous flow">viscous flow</option>
+                                
+                                    <option value="matched edges">matched edges</option>
+                                
+                                    <option value="size n">size n</option>
+                                
+                                    <option value="indicator variables y">indicator variables y</option>
+                                
+                                    <option value="penalties">penalties</option>
+                                
+                                    <option value="unit blocks">unit blocks</option>
+                                
+                                    <option value="s periodic conformation">s periodic conformation</option>
+                                
+                                    <option value="translation">translation</option>
+                                
+                                    <option value="blast load">blast load</option>
+                                
+                                    <option value="squid">squid</option>
+                                
+                                    <option value="variations">variations</option>
+                                
+                                    <option value="multiaxial loading">multiaxial loading</option>
+                                
+                                    <option value="secondary vertical band structures">secondary vertical band structures</option>
+                                
+                                    <option value="fiber cross-sectional area">fiber cross-sectional area</option>
+                                
+                                    <option value="cf">cf</option>
+                                
+                                    <option value="awn">awn</option>
+                                
+                                    <option value="lt">lt</option>
+                                
+                                    <option value="os">os</option>
+                                
+                                    <option value="sc">sc</option>
+                                
+                                    <option value="hmsa">hmsa</option>
+                                
+                                    <option value="ms">ms</option>
+                                
+                                    <option value="ls">ls</option>
+                                
+                                    <option value="hto">hto</option>
+                                
+                                    <option value="ucd">ucd</option>
+                                
+                                    <option value="cryst">cryst</option>
+                                
+                                    <option value="dop">dop</option>
+                                
+                                    <option value="ebf">ebf</option>
+                                
+                                    <option value="env">env</option>
+                                
+                                    <option value="pc">pc</option>
+                                
+                                    <option value="nfsks">nfsks</option>
+                                
+                                    <option value="electrospun nanofibers">electrospun nanofibers</option>
+                                
+                                    <option value="mineralized structure of bone tissue">mineralized structure of bone tissue</option>
+                                
+                                    <option value="periodic and uniform structures">periodic and uniform structures</option>
+                                
+                                    <option value="polymer single crystals">polymer single crystals</option>
+                                
+                                    <option value="size-dependent orientation">size-dependent orientation</option>
+                                
+                                    <option value="tunable chemistry">tunable chemistry</option>
+                                
+                                    <option value="polyelectrolyte segment">polyelectrolyte segment</option>
+                                
+                                    <option value="fiber wettability">fiber wettability</option>
+                                
+                                    <option value="load cycles">load cycles</option>
+                                
+                                    <option value="model-led design process">model-led design process</option>
+                                
+                                    <option value="shear properties">shear properties</option>
+                                
+                                    <option value="variables">variables</option>
+                                
+                                    <option value="matching of mechanical properties">matching of mechanical properties</option>
+                                
+                                    <option value="matrix properties">matrix properties</option>
+                                
+                                    <option value="high energy dissipation">high energy dissipation</option>
+                                
+                                    <option value="growth factor-loaded hydrogels">growth factor-loaded hydrogels</option>
+                                
+                                    <option value="firing">firing</option>
+                                
+                                    <option value="lamellar ice">lamellar ice</option>
+                                
+                                    <option value="ice crystal structure">ice crystal structure</option>
+                                
+                                    <option value="hydrophobic effect">hydrophobic effect</option>
+                                
+                                    <option value="mineral-protein composite">mineral-protein composite</option>
+                                
+                                    <option value="3dimagingtechniques">3dimagingtechniques</option>
+                                
+                                    <option value="advancingbiomineralizedmaterialsresearch">advancingbiomineralizedmaterialsresearch</option>
+                                
+                                    <option value="fibsemtomography">fibsemtomography</option>
+                                
+                                    <option value="nanotomography">nanotomography</option>
+                                
+                                    <option value="stemtomography">stemtomography</option>
+                                
+                                    <option value="hv">hv</option>
+                                
+                                    <option value="physical_restraint">physical_restraint</option>
+                                
+                                    <option value="bony_layer">bony_layer</option>
+                                
+                                    <option value="rhamphotheca">rhamphotheca</option>
+                                
+                                    <option value="alginate hydrogels">alginate hydrogels</option>
+                                
+                                    <option value="chitin hydrogels">chitin hydrogels</option>
+                                
+                                    <option value="chitosan-based hydrogels">chitosan-based hydrogels</option>
+                                
+                                    <option value="chitin-based nanocomposite hydrogels">chitin-based nanocomposite hydrogels</option>
+                                
+                                    <option value="fillers">fillers</option>
+                                
+                                    <option value="textile yarn">textile yarn</option>
+                                
+                                    <option value="reduced graphene oxide">reduced graphene oxide</option>
+                                
+                                    <option value="kappa-carrageenan-based hydrogels">kappa-carrageenan-based hydrogels</option>
+                                
+                                    <option value="polysaccharide-based hydrogels">polysaccharide-based hydrogels</option>
+                                
+                                    <option value="starch-based hydrogels">starch-based hydrogels</option>
+                                
+                                    <option value="carboxylate groups">carboxylate groups</option>
+                                
+                                    <option value="strong electrostatic repulsion">strong electrostatic repulsion</option>
+                                
+                                    <option value="adhesive strength">adhesive strength</option>
+                                
+                                    <option value="ha-grafted-da">ha-grafted-da</option>
+                                
+                                    <option value="rgo synthesized using an h2o2/hrp system">rgo synthesized using an h2o2/hrp system</option>
+                                
+                                    <option value="baillargeon_et_al.">baillargeon_et_al.</option>
+                                
+                                    <option value="established_cardiac_models">established_cardiac_models</option>
+                                
+                                    <option value="costa_et_al.">costa_et_al.</option>
+                                
+                                    <option value="orthotropic_material_behavior">orthotropic_material_behavior</option>
+                                
+                                    <option value="dokos_et_al.">dokos_et_al.</option>
+                                
+                                    <option value="genet_et_al.">genet_et_al.</option>
+                                
+                                    <option value="homogeneous_material_behavior">homogeneous_material_behavior</option>
+                                
+                                    <option value="macroscale_behavior">macroscale_behavior</option>
+                                
+                                    <option value="innovative engineering education">innovative engineering education</option>
+                                
+                                    <option value="limei lyu">limei lyu</option>
+                                
+                                    <option value="multi-mode folding and capture mechanisms">multi-mode folding and capture mechanisms</option>
+                                
+                                    <option value="robotics">robotics</option>
+                                
+                                    <option value="robotics applications">robotics applications</option>
+                                
+                                    <option value="automation">automation</option>
+                                
+                                    <option value="control">control</option>
+                                
+                                    <option value="deep layer">deep layer</option>
+                                
+                                    <option value="calcified layer">calcified layer</option>
+                                
+                                    <option value="superficial layer">superficial layer</option>
+                                
+                                    <option value="azurin">azurin</option>
+                                
+                                    <option value="different conformations">different conformations</option>
+                                
+                                    <option value="protein-based electronic materials">protein-based electronic materials</option>
+                                
+                                    <option value="tunable electronic properties">tunable electronic properties</option>
+                                
+                                    <option value="sulfur-doped carbon nanotubes">sulfur-doped carbon nanotubes</option>
+                                
+                                    <option value="copper complexes">copper complexes</option>
+                                
+                                    <option value="carbon chain stretching">carbon chain stretching</option>
+                                
+                                    <option value="summarized in">summarized in</option>
+                                
+                                    <option value="lj 12:6 potential">lj 12:6 potential</option>
+                                
+                                    <option value="martini force field">martini force field</option>
+                                
+                                    <option value="amyloid aggregates">amyloid aggregates</option>
+                                
+                                    <option value="extended interior hydrogen bond networks">extended interior hydrogen bond networks</option>
+                                
+                                    <option value="bone material quality">bone material quality</option>
+                                
+                                    <option value="composite musculoskeletal implants">composite musculoskeletal implants</option>
+                                
+                                    <option value="fibrillar elastic modulus">fibrillar elastic modulus</option>
+                                
+                                    <option value="glucocorticoids">glucocorticoids</option>
+                                
+                                    <option value="mineral platelet length">mineral platelet length</option>
+                                
+                                    <option value="mineral platelet aspect ratio">mineral platelet aspect ratio</option>
+                                
+                                    <option value="progressively increasing stiffness">progressively increasing stiffness</option>
+                                
+                                    <option value="twisted plywood structures">twisted plywood structures</option>
+                                
+                                    <option value="helical pitch">helical pitch</option>
+                                
+                                    <option value="poor mechanical properties">poor mechanical properties</option>
+                                
+                                    <option value="bj">bj</option>
+                                
+                                    <option value="vp">vp</option>
+                                
+                                    <option value="contact between mineral tips">contact between mineral tips</option>
+                                
+                                    <option value="tip-free model">tip-free model</option>
+                                
+                                    <option value="tip-pinned model">tip-pinned model</option>
+                                
+                                    <option value="overlapping ratio">overlapping ratio</option>
+                                
+                                    <option value="spatial resolution limitations">spatial resolution limitations</option>
+                                
+                                    <option value="concentrated hydrochloric acid">concentrated hydrochloric acid</option>
+                                
+                                    <option value="vigorous stirring">vigorous stirring</option>
+                                
+                                    <option value="foam core">foam core</option>
+                                
+                                    <option value="longitudinal stiffeners">longitudinal stiffeners</option>
+                                
+                                    <option value="graded mineralization level">graded mineralization level</option>
+                                
+                                    <option value="mechanical failure">mechanical failure</option>
+                                
+                                    <option value="endosperm matrix">endosperm matrix</option>
+                                
+                                    <option value="crystalline phase">crystalline phase</option>
+                                
+                                    <option value="teb">teb</option>
+                                
+                                    <option value="marine organisms">marine organisms</option>
+                                
+                                    <option value="organic phase">organic phase</option>
+                                
+                                    <option value="unique microstructure of sea urchin teeth">unique microstructure of sea urchin teeth</option>
+                                
+                                    <option value="ap7">ap7</option>
+                                
+                                    <option value="kevlar threads">kevlar threads</option>
+                                
+                                    <option value="micron-scale lamellae">micron-scale lamellae</option>
+                                
+                                    <option value="functionally graded concrete (fgc)">functionally graded concrete (fgc)</option>
+                                
+                                    <option value="modified with folic acid">modified with folic acid</option>
+                                
+                                    <option value="cost-effective and energy-efficient routes">cost-effective and energy-efficient routes</option>
+                                
+                                    <option value="homogeneous redispersion">homogeneous redispersion</option>
+                                
+                                    <option value="interfibrillar bonding">interfibrillar bonding</option>
+                                
+                                    <option value="extracorporeal devices">extracorporeal devices</option>
+                                
+                                    <option value="supportive therapy">supportive therapy</option>
+                                
+                                    <option value="biomimetic vascular tree architecture">biomimetic vascular tree architecture</option>
+                                
+                                    <option value="branching angle">branching angle</option>
+                                
+                                    <option value="channels or branches">channels or branches</option>
+                                
+                                    <option value="diameter ratio">diameter ratio</option>
+                                
+                                    <option value="liver tissue engineering">liver tissue engineering</option>
+                                
+                                    <option value="human hepatocytes">human hepatocytes</option>
+                                
+                                    <option value="improve biocompatibility">improve biocompatibility</option>
+                                
+                                    <option value="radially oriented lamellar sheets">radially oriented lamellar sheets</option>
+                                
+                                    <option value="continuous graphene walls">continuous graphene walls</option>
+                                
+                                    <option value="graphene materials">graphene materials</option>
+                                
+                                    <option value="cross-stacked scaffold structure">cross-stacked scaffold structure</option>
+                                
+                                    <option value="higher young's moduli">higher young's moduli</option>
+                                
+                                    <option value="denser cellular structure">denser cellular structure</option>
+                                
+                                    <option value="higher max stress">higher max stress</option>
+                                
+                                    <option value="max stress after 10 cycles">max stress after 10 cycles</option>
+                                
+                                    <option value="disorderly stacking of graphene sheets">disorderly stacking of graphene sheets</option>
+                                
+                                    <option value="traditional 3d-printed hydrogenated graphene materials">traditional 3d-printed hydrogenated graphene materials</option>
+                                
+                                    <option value="poor compressive properties">poor compressive properties</option>
+                                
+                                    <option value="small space for deformation">small space for deformation</option>
+                                
+                                    <option value="superior compressive properties">superior compressive properties</option>
+                                
+                                    <option value="hexagonal honeycomb structure">hexagonal honeycomb structure</option>
+                                
+                                    <option value="interconnected cellular structure">interconnected cellular structure</option>
+                                
+                                    <option value="aligned cellulose nanofibrils">aligned cellulose nanofibrils</option>
+                                
+                                    <option value="fluid conduction">fluid conduction</option>
+                                
+                                    <option value="ionic conductivity">ionic conductivity</option>
+                                
+                                    <option value="physiological tissues">physiological tissues</option>
+                                
+                                    <option value="pam chains">pam chains</option>
+                                
+                                    <option value="compact structures">compact structures</option>
+                                
+                                    <option value="isotropic hydrogels">isotropic hydrogels</option>
+                                
+                                    <option value="freeze-thawed pva hydrogels">freeze-thawed pva hydrogels</option>
+                                
+                                    <option value="pva content">pva content</option>
+                                
+                                    <option value="salting-out process">salting-out process</option>
+                                
+                                    <option value="apparent strain hardening behavior">apparent strain hardening behavior</option>
+                                
+                                    <option value="subsent swelling process">subsent swelling process</option>
+                                
+                                    <option value="swelling performance">swelling performance</option>
+                                
+                                    <option value="simple prestretching-drying-swelling">simple prestretching-drying-swelling</option>
+                                
+                                    <option value="nature's spatially heterogeneous composites">nature's spatially heterogeneous composites</option>
+                                
+                                    <option value="constituents">constituents</option>
+                                
+                                    <option value="continuous fgms">continuous fgms</option>
+                                
+                                    <option value="discontinuous fgms">discontinuous fgms</option>
+                                
+                                    <option value="functional property changes">functional property changes</option>
+                                
+                                    <option value="bond stretching">bond stretching</option>
+                                
+                                    <option value="process zone near crack tip">process zone near crack tip</option>
+                                
+                                    <option value="collagen fiber organization">collagen fiber organization</option>
+                                
+                                    <option value="mineral content gradients">mineral content gradients</option>
+                                
+                                    <option value="ha minerals">ha minerals</option>
+                                
+                                    <option value="stress intensity factors (sifs)">stress intensity factors (sifs)</option>
+                                
+                                    <option value="nanoscale components">nanoscale components</option>
+                                
+                                    <option value="input values for estimating mesoscale effective stiffness tensor">input values for estimating mesoscale effective stiffness tensor</option>
+                                
+                                    <option value="partially mineralized tissue">partially mineralized tissue</option>
+                                
+                                    <option value="water-protein mixture">water-protein mixture</option>
+                                
+                                    <option value="controlled, confined compression">controlled, confined compression</option>
+                                
+                                    <option value="collagen-fibril matrices">collagen-fibril matrices</option>
+                                
+                                    <option value="distance from high density surface">distance from high density surface</option>
+                                
+                                    <option value="native bovine cartilage">native bovine cartilage</option>
+                                
+                                    <option value="large collagen aggregate bundles">large collagen aggregate bundles</option>
+                                
+                                    <option value="fibril morphology">fibril morphology</option>
+                                
+                                    <option value="local mechanical properties">local mechanical properties</option>
+                                
+                                    <option value="applied external stress">applied external stress</option>
+                                
+                                    <option value="attachment">attachment</option>
+                                
+                                    <option value="branches">branches</option>
+                                
+                                    <option value="treetrunks">treetrunks</option>
+                                
+                                    <option value="gradient in sublayer thicknesses">gradient in sublayer thicknesses</option>
+                                
+                                    <option value="fm">fm</option>
+                                
+                                    <option value="cold rolling">cold rolling</option>
+                                
+                                    <option value="corrosion testing">corrosion testing</option>
+                                
+                                    <option value="design for manufacturability">design for manufacturability</option>
+                                
+                                    <option value="hydrothermal synthesis">hydrothermal synthesis</option>
+                                
+                                    <option value="life cycle assessment">life cycle assessment</option>
+                                
+                                    <option value="sustainability considerations">sustainability considerations</option>
+                                
+                                    <option value="defects and dislocations">defects and dislocations</option>
+                                
+                                    <option value="material design">material design</option>
+                                
+                                    <option value="tensile tests">tensile tests</option>
+                                
+                                    <option value="analytical treatments">analytical treatments</option>
+                                
+                                    <option value="closed-cell system">closed-cell system</option>
+                                
+                                    <option value="struts">struts</option>
+                                
+                                    <option value="cellular core">cellular core</option>
+                                
+                                    <option value="composite structure">composite structure</option>
+                                
+                                    <option value="external solid keratin shell">external solid keratin shell</option>
+                                
+                                    <option value="cross-fiber layers">cross-fiber layers</option>
+                                
+                                    <option value="internal foam structures">internal foam structures</option>
+                                
+                                    <option value="pdms surface">pdms surface</option>
+                                
+                                    <option value="embedded ps layer">embedded ps layer</option>
+                                
+                                    <option value="localized stresses">localized stresses</option>
+                                
+                                    <option value="toucans'_rhampotech">toucans'_rhampotech</option>
+                                
+                                    <option value="fibrous arrangements">fibrous arrangements</option>
+                                
+                                    <option value="gradients_in_tubule_density">gradients_in_tubule_density</option>
+                                
+                                    <option value="gradients_in_tubule_shape">gradients_in_tubule_shape</option>
+                                
+                                    <option value="tubular arrangements">tubular arrangements</option>
+                                
+                                    <option value="exterior layers">exterior layers</option>
+                                
+                                    <option value="interior tissue">interior tissue</option>
+                                
+                                    <option value="hydration difference">hydration difference</option>
+                                
+                                    <option value="hydration gradient">hydration gradient</option>
+                                
+                                    <option value="stiffness difference">stiffness difference</option>
+                                
+                                    <option value="lowest-level fibril">lowest-level fibril</option>
+                                
+                                    <option value="control parameters">control parameters</option>
+                                
+                                    <option value="calcium carbonate tiles">calcium carbonate tiles</option>
+                                
+                                    <option value="plate pull-out">plate pull-out</option>
+                                
+                                    <option value="unobstructed crack propagation">unobstructed crack propagation</option>
+                                
+                                    <option value="pfm technique">pfm technique</option>
+                                
+                                    <option value="bone-like hierarchical materials">bone-like hierarchical materials</option>
+                                
+                                    <option value="relative stiffnesses">relative stiffnesses</option>
+                                
+                                    <option value="high degree of heterogeneity">high degree of heterogeneity</option>
+                                
+                                    <option value="relevant atomistic dynamics">relevant atomistic dynamics</option>
+                                
+                                    <option value="interface properties">interface properties</option>
+                                
+                                    <option value="organic interlamellar layer">organic interlamellar layer</option>
+                                
+                                    <option value="coverage areas">coverage areas</option>
+                                
+                                    <option value="crack mouth">crack mouth</option>
+                                
+                                    <option value="middle of the prism">middle of the prism</option>
+                                
+                                    <option value="regularly shaped tubes">regularly shaped tubes</option>
+                                
+                                    <option value="biodegradable bone scaffolds">biodegradable bone scaffolds</option>
+                                
+                                    <option value="cancer recurrence prevention">cancer recurrence prevention</option>
+                                
+                                    <option value="local delivery">local delivery</option>
+                                
+                                    <option value="sepsis prevention">sepsis prevention</option>
+                                
+                                    <option value="ethylene oxide gas">ethylene oxide gas</option>
+                                
+                                    <option value="gamma irradiation">gamma irradiation</option>
+                                
+                                    <option value="high pressure co2">high pressure co2</option>
+                                
+                                    <option value="sintering/compression">sintering/compression</option>
+                                
+                                    <option value="steam sterilization">steam sterilization</option>
+                                
+                                    <option value="ultrasonic welding">ultrasonic welding</option>
+                                
+                                    <option value="cathepsin inhibitors">cathepsin inhibitors</option>
+                                
+                                    <option value="chemotherapeutics">chemotherapeutics</option>
+                                
+                                    <option value="sodium fluoride">sodium fluoride</option>
+                                
+                                    <option value="statins">statins</option>
+                                
+                                    <option value="ciprofloxacin">ciprofloxacin</option>
+                                
+                                    <option value="gentamycin">gentamycin</option>
+                                
+                                    <option value="vancomycin">vancomycin</option>
+                                
+                                    <option value="consistent properties">consistent properties</option>
+                                
+                                    <option value="short-term capability">short-term capability</option>
+                                
+                                    <option value="calcium-containing mineral">calcium-containing mineral</option>
+                                
+                                    <option value="absorbance (light absorber)">absorbance (light absorber)</option>
+                                
+                                    <option value="standard curves">standard curves</option>
+                                
+                                    <option value="reassembly">reassembly</option>
+                                
+                                    <option value="thiol termini">thiol termini</option>
+                                
+                                    <option value="rhbmp-2 immobilization">rhbmp-2 immobilization</option>
+                                
+                                    <option value="trimodal porosity">trimodal porosity</option>
+                                
+                                    <option value="sol-gel transformation">sol-gel transformation</option>
+                                
+                                    <option value="controlled release of bioactive molecules">controlled release of bioactive molecules</option>
+                                
+                                    <option value="diagnosis">diagnosis</option>
+                                
+                                    <option value="double-layered hollow fibers">double-layered hollow fibers</option>
+                                
+                                    <option value="highly porous electrospun nanomaterials with adjustable pore distributions">highly porous electrospun nanomaterials with adjustable pore distributions</option>
+                                
+                                    <option value="encapsulation">encapsulation</option>
+                                
+                                    <option value="electrospun nanomaterials with adjustable pore distributions">electrospun nanomaterials with adjustable pore distributions</option>
+                                
+                                    <option value="mesoporous silica nanoparticles">mesoporous silica nanoparticles</option>
+                                
+                                    <option value="micron-sized and multi-compartmental hydrogels">micron-sized and multi-compartmental hydrogels</option>
+                                
+                                    <option value="air purification">air purification</option>
+                                
+                                    <option value="tailored properties">tailored properties</option>
+                                
+                                    <option value="natural extracellular matrices">natural extracellular matrices</option>
+                                
+                                    <option value="microspheres">microspheres</option>
+                                
+                                    <option value="polymer solution concentration">polymer solution concentration</option>
+                                
+                                    <option value="dendritic adhesive anchorage">dendritic adhesive anchorage</option>
+                                
+                                    <option value="initial adhesion angle">initial adhesion angle</option>
+                                
+                                    <option value="optimized adhesive strength">optimized adhesive strength</option>
+                                
+                                    <option value="different types of anchorages">different types of anchorages</option>
+                                
+                                    <option value="high-pressure homogenization">high-pressure homogenization</option>
+                                
+                                    <option value="purified chitin">purified chitin</option>
+                                
+                                    <option value="biological treatments">biological treatments</option>
+                                
+                                    <option value="isolation">isolation</option>
+                                
+                                    <option value="mechanical treatments">mechanical treatments</option>
+                                
+                                    <option value="crystalline domains">crystalline domains</option>
+                                
+                                    <option value="less ordered domains">less ordered domains</option>
+                                
+                                    <option value="nonpolar organic solvents">nonpolar organic solvents</option>
+                                
+                                    <option value="organic template molecule">organic template molecule</option>
+                                
+                                    <option value="premature solidification">premature solidification</option>
+                                
+                                    <option value="well-ordered macrostructures">well-ordered macrostructures</option>
+                                
+                                    <option value="solute">solute</option>
+                                
+                                    <option value="good optical transparency">good optical transparency</option>
+                                
+                                    <option value="plywood-like nanolayered structures">plywood-like nanolayered structures</option>
+                                
+                                    <option value="small diameter">small diameter</option>
+                                
+                                    <option value="reinforcing substances">reinforcing substances</option>
+                                
+                                    <option value="wearable electronics">wearable electronics</option>
+                                
+                                    <option value="functional additives">functional additives</option>
+                                
+                                    <option value="lower cost">lower cost</option>
+                                
+                                    <option value="inner fibrous cellulose structures of reeds">inner fibrous cellulose structures of reeds</option>
+                                
+                                    <option value="pressure sensors">pressure sensors</option>
+                                
+                                    <option value="leaf structural cellulose membranes">leaf structural cellulose membranes</option>
+                                
+                                    <option value="sensor development">sensor development</option>
+                                
+                                    <option value="monolithic knit manufacturing techniques">monolithic knit manufacturing techniques</option>
+                                
+                                    <option value="lateral line sensory systems">lateral line sensory systems</option>
+                                
+                                    <option value="pyramid-wall-grid (pwgm) structure">pyramid-wall-grid (pwgm) structure</option>
+                                
+                                    <option value="helicoidal organic fibrils">helicoidal organic fibrils</option>
+                                
+                                    <option value="elastic-modulus gradients">elastic-modulus gradients</option>
+                                
+                                    <option value="gradient of hardness">gradient of hardness</option>
+                                
+                                    <option value="protruding cell walls (borehole beehive structures)">protruding cell walls (borehole beehive structures)</option>
+                                
+                                    <option value="sub-ghz surface acoustic waves (saws)">sub-ghz surface acoustic waves (saws)</option>
+                                
+                                    <option value="naturally occurring biological composites">naturally occurring biological composites</option>
+                                
+                                    <option value="specific microstructures">specific microstructures</option>
+                                
+                                    <option value="compact bone tissue">compact bone tissue</option>
+                                
+                                    <option value="weakly overlapping staggered architecture">weakly overlapping staggered architecture</option>
+                                
+                                    <option value="ca">ca</option>
+                                
+                                    <option value="environmental adaptation">environmental adaptation</option>
+                                
+                                    <option value="si">si</option>
+                                
+                                    <option value="synthetic_composites">synthetic_composites</option>
+                                
+                                    <option value="enhanced subsent new bone ingrowth">enhanced subsent new bone ingrowth</option>
+                                
+                                    <option value="nanocomposite scaffolds">nanocomposite scaffolds</option>
+                                
+                                    <option value="challenges of dispersion of titania nanops in plga composites">challenges of dispersion of titania nanops in plga composites</option>
+                                
+                                    <option value="alternative method for improving dispersion states of titania nanops in plga composites">alternative method for improving dispersion states of titania nanops in plga composites</option>
+                                
+                                    <option value="effectiveness of surfactants for stabilizing ceramic nanop dispersion in electronic systems">effectiveness of surfactants for stabilizing ceramic nanop dispersion in electronic systems</option>
+                                
+                                    <option value="soft and hard agglomerates">soft and hard agglomerates</option>
+                                
+                                    <option value="interconnected, ordered pore networks">interconnected, ordered pore networks</option>
+                                
+                                    <option value="less predictable biological and mechanical properties">less predictable biological and mechanical properties</option>
+                                
+                                    <option value="promoted osteoblast infiltration">promoted osteoblast infiltration</option>
+                                
+                                    <option value="hard agglomerates">hard agglomerates</option>
+                                
+                                    <option value="uniform dispersion of titania nanops">uniform dispersion of titania nanops</option>
+                                
+                                    <option value="ah2">ah2</option>
+                                
+                                    <option value="enhanced stability">enhanced stability</option>
+                                
+                                    <option value="improved photocatalytic activity">improved photocatalytic activity</option>
+                                
+                                    <option value="surfactant-free reaction conditions">surfactant-free reaction conditions</option>
+                                
+                                    <option value="high gas adsorption capacity">high gas adsorption capacity</option>
+                                
+                                    <option value="higher selectivity">higher selectivity</option>
+                                
+                                    <option value="differential scanning calorimetry">differential scanning calorimetry</option>
+                                
+                                    <option value="filament tension">filament tension</option>
+                                
+                                    <option value="three-layered braids">three-layered braids</option>
+                                
+                                    <option value="process braiding angle">process braiding angle</option>
+                                
+                                    <option value="exposed to blast loads">exposed to blast loads</option>
+                                
+                                    <option value="laser-assisted etching">laser-assisted etching</option>
+                                
+                                    <option value="circular braiding machine">circular braiding machine</option>
+                                
+                                    <option value="wide angle x-ray diffraction">wide angle x-ray diffraction</option>
+                                
+                                    <option value="b-tricalcium phosphate">b-tricalcium phosphate</option>
+                                
+                                    <option value="binder">binder</option>
+                                
+                                    <option value="bone attachment">bone attachment</option>
+                                
+                                    <option value="channels">channels</option>
+                                
+                                    <option value="ingrowth">ingrowth</option>
+                                
+                                    <option value="interconnecting porosity">interconnecting porosity</option>
+                                
+                                    <option value="vessel formation">vessel formation</option>
+                                
+                                    <option value="ceramic powder">ceramic powder</option>
+                                
+                                    <option value="fine ceramic lattices">fine ceramic lattices</option>
+                                
+                                    <option value="metal matrix composite preforms">metal matrix composite preforms</option>
+                                
+                                    <option value="microfluidic devices">microfluidic devices</option>
+                                
+                                    <option value="traditional ceramic processing techniques">traditional ceramic processing techniques</option>
+                                
+                                    <option value="amolf research institute">amolf research institute</option>
+                                
+                                    <option value="bas overelde">bas overelde</option>
+                                
+                                    <option value="brian eames">brian eames</option>
+                                
+                                    <option value="company of biologists">company of biologists</option>
+                                
+                                    <option value="hfsp young investigators grant">hfsp young investigators grant</option>
+                                
+                                    <option value="joseph atake">joseph atake</option>
+                                
+                                    <option value="journal of experimental biology">journal of experimental biology</option>
+                                
+                                    <option value="leafhoppers">leafhoppers</option>
+                                
+                                    <option value="forewings">forewings</option>
+                                
+                                    <option value="skin tissue">skin tissue</option>
+                                
+                                    <option value="cyclodextrin">cyclodextrin</option>
+                                
+                                    <option value="hydrophobic moieties">hydrophobic moieties</option>
+                                
+                                    <option value="imide formation">imide formation</option>
+                                
+                                    <option value="catechol and quinone groups">catechol and quinone groups</option>
+                                
+                                    <option value="rgo-pda">rgo-pda</option>
+                                
+                                    <option value="jpk nanowizard ii afm">jpk nanowizard ii afm</option>
+                                
+                                    <option value="mfp-3d-bio afm">mfp-3d-bio afm</option>
+                                
+                                    <option value="microwells">microwells</option>
+                                
+                                    <option value="power law exponents">power law exponents</option>
+                                
+                                    <option value="friction histogram">friction histogram</option>
+                                
+                                    <option value="individual histograms">individual histograms</option>
+                                
+                                    <option value="spectrum of power law exponents">spectrum of power law exponents</option>
+                                
+                                    <option value="short segments of force-indentation curves">short segments of force-indentation curves</option>
+                                
+                                    <option value="sylgard® 184 silicon elastomer kit">sylgard® 184 silicon elastomer kit</option>
+                                
+                                    <option value="expected hertzian values">expected hertzian values</option>
+                                
+                                    <option value="ma silk">ma silk</option>
+                                
+                                    <option value="high_crystallinity">high_crystallinity</option>
+                                
+                                    <option value="drop tower samples">drop tower samples</option>
+                                
+                                    <option value="anisotropic structure">anisotropic structure</option>
+                                
+                                    <option value="natural materials (nms1)">natural materials (nms1)</option>
+                                
+                                    <option value="boric acid">boric acid</option>
+                                
+                                    <option value="color adaptivity (ca1)">color adaptivity (ca1)</option>
+                                
+                                    <option value="communication (cm1)">communication (cm1)</option>
+                                
+                                    <option value="defense (ds1)">defense (ds1)</option>
+                                
+                                    <option value="increased strength">increased strength</option>
+                                
+                                    <option value="mastering scale-up synthesis (mss1)">mastering scale-up synthesis (mss1)</option>
+                                
+                                    <option value="molecular interactions (mi1)">molecular interactions (mi1)</option>
+                                
+                                    <option value="sensing (sn1)">sensing (sn1)</option>
+                                
+                                    <option value="temperature regulation (tr1)">temperature regulation (tr1)</option>
+                                
+                                    <option value="closed-loop polyhedral mechanisms">closed-loop polyhedral mechanisms</option>
+                                
+                                    <option value="computational geometry">computational geometry</option>
+                                
+                                    <option value="continuous skin-based models">continuous skin-based models</option>
+                                
+                                    <option value="different functionalities">different functionalities</option>
+                                
+                                    <option value="hierarchical and multiscale mechanism constructions">hierarchical and multiscale mechanism constructions</option>
+                                
+                                    <option value="hierarchically change kinematic performance">hierarchically change kinematic performance</option>
+                                
+                                    <option value="modular origami">modular origami</option>
+                                
+                                    <option value="polyhedral models">polyhedral models</option>
+                                
+                                    <option value="multimaterial substrates">multimaterial substrates</option>
+                                
+                                    <option value="explicit processes">explicit processes</option>
+                                
+                                    <option value="mathematical rules governing creases">mathematical rules governing creases</option>
+                                
+                                    <option value="three-dimensional objects">three-dimensional objects</option>
+                                
+                                    <option value="two-dimensional sheets">two-dimensional sheets</option>
+                                
+                                    <option value="task-oriented operations">task-oriented operations</option>
+                                
+                                    <option value="wrapped gift packages">wrapped gift packages</option>
+                                
+                                    <option value="self-deployable characteristics">self-deployable characteristics</option>
+                                
+                                    <option value="two-dimensional fabrication routines">two-dimensional fabrication routines</option>
+                                
+                                    <option value="cosolvents">cosolvents</option>
+                                
+                                    <option value="afm-based microbeam bending setup">afm-based microbeam bending setup</option>
+                                
+                                    <option value="donor age">donor age</option>
+                                
+                                    <option value="micropillar compression">micropillar compression</option>
+                                
+                                    <option value="microsized specimens">microsized specimens</option>
+                                
+                                    <option value="5-fu">5-fu</option>
+                                
+                                    <option value="bsa">bsa</option>
+                                
+                                    <option value="diffusion behavior">diffusion behavior</option>
+                                
+                                    <option value="controlled release">controlled release</option>
+                                
+                                    <option value="mhp">mhp</option>
+                                
+                                    <option value="derivative">derivative</option>
+                                
+                                    <option value="collagen membranes">collagen membranes</option>
+                                
+                                    <option value="dental tissues">dental tissues</option>
+                                
+                                    <option value="dentin substrates">dentin substrates</option>
+                                
+                                    <option value="etched dental surfaces">etched dental surfaces</option>
+                                
+                                    <option value="have comparable acid resistance">have comparable acid resistance</option>
+                                
+                                    <option value="high hardness">high hardness</option>
+                                
+                                    <option value="rough dental surfaces">rough dental surfaces</option>
+                                
+                                    <option value="hierarchically mineralized dental membranes">hierarchically mineralized dental membranes</option>
+                                
+                                    <option value="hypocholesterolemic effects">hypocholesterolemic effects</option>
+                                
+                                    <option value="hypoglycemic effects">hypoglycemic effects</option>
+                                
+                                    <option value="instability in solution">instability in solution</option>
+                                
+                                    <option value="low biomechanical features">low biomechanical features</option>
+                                
+                                    <option value="enhanced self-assembly properties">enhanced self-assembly properties</option>
+                                
+                                    <option value="nylon fabric">nylon fabric</option>
+                                
+                                    <option value="polyurethane-based small-mesh-size spacer fabrics">polyurethane-based small-mesh-size spacer fabrics</option>
+                                
+                                    <option value="box turtle shell">box turtle shell</option>
+                                
+                                    <option value="comparable materials">comparable materials</option>
+                                
+                                    <option value="softwoods">softwoods</option>
+                                
+                                    <option value="small batches">small batches</option>
+                                
+                                    <option value="specialized purposes">specialized purposes</option>
+                                
+                                    <option value="four different specimen orientations">four different specimen orientations</option>
+                                
+                                    <option value="binding geometry">binding geometry</option>
+                                
+                                    <option value="peptides">peptides</option>
+                                
+                                    <option value="high-power sonication">high-power sonication</option>
+                                
+                                    <option value="nanocomposites (nanoscale titania/plga)">nanocomposites (nanoscale titania/plga)</option>
+                                
+                                    <option value="low powers">low powers</option>
+                                
+                                    <option value="solvent-casting technique">solvent-casting technique</option>
+                                
+                                    <option value="low-power sonication">low-power sonication</option>
+                                
+                                    <option value="traditional honeycomb designs">traditional honeycomb designs</option>
+                                
+                                    <option value="conventional counterparts">conventional counterparts</option>
+                                
+                                    <option value="higher deformation">higher deformation</option>
+                                
+                                    <option value="higher specific energy absorption">higher specific energy absorption</option>
+                                
+                                    <option value="overall structure">overall structure</option>
+                                
+                                    <option value="atomistic simulations">atomistic simulations</option>
+                                
+                                    <option value="detailed understanding of atomic-level behavior">detailed understanding of atomic-level behavior</option>
+                                
+                                    <option value="β-sheet fibrils">β-sheet fibrils</option>
+                                
+                                    <option value="measure of material's resistance to crack propagation">measure of material's resistance to crack propagation</option>
+                                
+                                    <option value="standards (astm)">standards (astm)</option>
+                                
+                                    <option value="se(b) specimens">se(b) specimens</option>
+                                
+                                    <option value="should be interpreted with caution (9)">should be interpreted with caution (9)</option>
+                                
+                                    <option value="simplified empirical model (10)">simplified empirical model (10)</option>
+                                
+                                    <option value="n = 0 (5)">n = 0 (5)</option>
+                                
+                                    <option value="laurent et al.">laurent et al.</option>
+                                
+                                    <option value="bilayer">bilayer</option>
+                                
+                                    <option value="bilayers">bilayers</option>
+                                
+                                    <option value="monolayers">monolayers</option>
+                                
+                                    <option value="microcomputed tomography">microcomputed tomography</option>
+                                
+                                    <option value="bone mineral density">bone mineral density</option>
+                                
+                                    <option value="bone volume fraction">bone volume fraction</option>
+                                
+                                    <option value="cranial defects">cranial defects</option>
+                                
+                                    <option value="skull specimens">skull specimens</option>
+                                
+                                    <option value="bell-evans-polanyi model for bond rupture">bell-evans-polanyi model for bond rupture</option>
+                                
+                                    <option value="biomimetic composites with sacrificial bonds">biomimetic composites with sacrificial bonds</option>
+                                
+                                    <option value="initial bond strength">initial bond strength</option>
+                                
+                                    <option value="material strength">material strength</option>
+                                
+                                    <option value="complex interaction force">complex interaction force</option>
+                                
+                                    <option value="enhanced mechanisms of performance">enhanced mechanisms of performance</option>
+                                
+                                    <option value="binary rgo-pcdo nanocomposites">binary rgo-pcdo nanocomposites</option>
+                                
+                                    <option value="enhanced tensile strength">enhanced tensile strength</option>
+                                
+                                    <option value="go-dwnts nanocomposites">go-dwnts nanocomposites</option>
+                                
+                                    <option value="pure rgo films">pure rgo films</option>
+                                
+                                    <option value="smooth fibers">smooth fibers</option>
+                                
+                                    <option value="filling (during maturation)">filling (during maturation)</option>
+                                
+                                    <option value="inter-cell porosity">inter-cell porosity</option>
+                                
+                                    <option value="thick cell walls">thick cell walls</option>
+                                
+                                    <option value="fib microscopy">fib microscopy</option>
+                                
+                                    <option value="complex layered structure (with nano scale porosity)">complex layered structure (with nano scale porosity)</option>
+                                
+                                    <option value="carbonized loofah sponge">carbonized loofah sponge</option>
+                                
+                                    <option value="ccls-60 skeleton">ccls-60 skeleton</option>
+                                
+                                    <option value="emi shielding performance">emi shielding performance</option>
+                                
+                                    <option value="excellent flame resistance">excellent flame resistance</option>
+                                
+                                    <option value="good thermal stability">good thermal stability</option>
+                                
+                                    <option value="directionally arrayed microporous structure">directionally arrayed microporous structure</option>
+                                
+                                    <option value="myosin">myosin</option>
+                                
+                                    <option value="active properties">active properties</option>
+                                
+                                    <option value="distinct frequencies">distinct frequencies</option>
+                                
+                                    <option value="caco3 crystal">caco3 crystal</option>
+                                
+                                    <option value="green abalone shell">green abalone shell</option>
+                                
+                                    <option value="intra-granular organic phase">intra-granular organic phase</option>
+                                
+                                    <option value="complex and asymmetric structure">complex and asymmetric structure</option>
+                                
+                                    <option value="electrical and mechanical phenomena">electrical and mechanical phenomena</option>
+                                
+                                    <option value="internal rotation of dipoles">internal rotation of dipoles</option>
+                                
+                                    <option value="surface potential">surface potential</option>
+                                
+                                    <option value="old coconuts">old coconuts</option>
+                                
+                                    <option value="rehydrated samples">rehydrated samples</option>
+                                
+                                    <option value="young coconuts">young coconuts</option>
+                                
+                                    <option value="dry">dry</option>
+                                
+                                    <option value="fracture toughness tests">fracture toughness tests</option>
+                                
+                                    <option value="hitachi s-4300se/n variable-pressure scanning electron microscope">hitachi s-4300se/n variable-pressure scanning electron microscope</option>
+                                
+                                    <option value="involved">involved</option>
+                                
+                                    <option value="microtoming">microtoming</option>
+                                
+                                    <option value="modulus tests">modulus tests</option>
+                                
+                                    <option value="rehydrated">rehydrated</option>
+                                
+                                    <option value="strain to failure tests">strain to failure tests</option>
+                                
+                                    <option value="used_for">used_for</option>
+                                
+                                    <option value="pairwise_statistical_significance_test">pairwise_statistical_significance_test</option>
+                                
+                                    <option value="three_point_bending">three_point_bending</option>
+                                
+                                    <option value="two_way_anova">two_way_anova</option>
+                                
+                                    <option value="tukey_s_post_hoc_test">tukey_s_post_hoc_test</option>
+                                
+                                    <option value="survival challenges">survival challenges</option>
+                                
+                                    <option value="crystalline carbonated apatite">crystalline carbonated apatite</option>
+                                
+                                    <option value="nucleation">nucleation</option>
+                                
+                                    <option value="supersaturated solution">supersaturated solution</option>
+                                
+                                    <option value="biomaterial matrices">biomaterial matrices</option>
+                                
+                                    <option value="nanoparticles (biomaterial matrices)">nanoparticles (biomaterial matrices)</option>
+                                
+                                    <option value="dna nanostructures">dna nanostructures</option>
+                                
+                                    <option value="complex metallic nanoscaffolds">complex metallic nanoscaffolds</option>
+                                
+                                    <option value="compliant shell design">compliant shell design</option>
+                                
+                                    <option value="cylindrical shell model">cylindrical shell model</option>
+                                
+                                    <option value="passive automatic adjustment mechanism">passive automatic adjustment mechanism</option>
+                                
+                                    <option value="anisotropic cellular structure">anisotropic cellular structure</option>
+                                
+                                    <option value="anisotropic polygonal channels">anisotropic polygonal channels</option>
+                                
+                                    <option value="differentiated structures">differentiated structures</option>
+                                
+                                    <option value="water vapor">water vapor</option>
+                                
+                                    <option value="cold solid surface">cold solid surface</option>
+                                
+                                    <option value="aligned 3d collagen scaffolds">aligned 3d collagen scaffolds</option>
+                                
+                                    <option value="epithelial constructs">epithelial constructs</option>
+                                
+                                    <option value="biosynthesis of stromal tissue">biosynthesis of stromal tissue</option>
+                                
+                                    <option value="peptide amphiphile">peptide amphiphile</option>
+                                
+                                    <option value="rgd sence-integrin interactions">rgd sence-integrin interactions</option>
+                                
+                                    <option value="self-curvature">self-curvature</option>
+                                
+                                    <option value="corneal crystallins">corneal crystallins</option>
+                                
+                                    <option value="native corneal curvature">native corneal curvature</option>
+                                
+                                    <option value="timoshenko and goodier">timoshenko and goodier</option>
+                                
+                                    <option value="envelope property">envelope property</option>
+                                
+                                    <option value="geometric quantities">geometric quantities</option>
+                                
+                                    <option value="overall structure size">overall structure size</option>
+                                
+                                    <option value="effective material properties">effective material properties</option>
+                                
+                                    <option value="effective flexural properties">effective flexural properties</option>
+                                
+                                    <option value="char layer">char layer</option>
+                                
+                                    <option value="functionalized zrp nanosheet">functionalized zrp nanosheet</option>
+                                
+                                    <option value="n-alkoxy hindered amine">n-alkoxy hindered amine</option>
+                                
+                                    <option value="maximum absorbability">maximum absorbability</option>
+                                
+                                    <option value="pva/peo system">pva/peo system</option>
+                                
+                                    <option value="packaging">packaging</option>
+                                
+                                    <option value="complex systems">complex systems</option>
+                                
+                                    <option value="traditional computational methods">traditional computational methods</option>
+                                
+                                    <option value="dft">dft</option>
+                                
+                                    <option value="nn-dft algorithm">nn-dft algorithm</option>
+                                
+                                    <option value="electron density distribution">electron density distribution</option>
+                                
+                                    <option value="understanding electronic behavior">understanding electronic behavior</option>
+                                
+                                    <option value="machine learning techniques">machine learning techniques</option>
+                                
+                                    <option value="buffer solutions">buffer solutions</option>
+                                
+                                    <option value="calcium concentrations">calcium concentrations</option>
+                                
+                                    <option value="nuclear lamina formation">nuclear lamina formation</option>
+                                
+                                    <option value="e. coli bl21de3 rosetta bacteria">e. coli bl21de3 rosetta bacteria</option>
+                                
+                                    <option value="inclusion bodies">inclusion bodies</option>
+                                
+                                    <option value="rotating spinning method">rotating spinning method</option>
+                                
+                                    <option value="birefringence">birefringence</option>
+                                
+                                    <option value="optic-stress responses">optic-stress responses</option>
+                                
+                                    <option value="network structures">network structures</option>
+                                
+                                    <option value="orientation degree">orientation degree</option>
+                                
+                                    <option value="steric fibers (sfs)">steric fibers (sfs)</option>
+                                
+                                    <option value="g-codes">g-codes</option>
+                                
+                                    <option value="x3g formats">x3g formats</option>
+                                
+                                    <option value="bulk polymer">bulk polymer</option>
+                                
+                                    <option value="biocompatible polymers">biocompatible polymers</option>
+                                
+                                    <option value="biodegradable polymer">biodegradable polymer</option>
+                                
+                                    <option value="desirable mechanical strengths">desirable mechanical strengths</option>
+                                
+                                    <option value="highly porous structures">highly porous structures</option>
+                                
+                                    <option value="interconnectivity of structures">interconnectivity of structures</option>
+                                
+                                    <option value="toxic solvents">toxic solvents</option>
+                                
+                                    <option value="tunable processability">tunable processability</option>
+                                
+                                    <option value="multi-material 3d printers">multi-material 3d printers</option>
+                                
+                                    <option value="penetration resistance">penetration resistance</option>
+                                
+                                    <option value="self-similar">self-similar</option>
+                                
+                                    <option value="ch₃cooh">ch₃cooh</option>
+                                
+                                    <option value="c₆h₄so₇">c₆h₄so₇</option>
+                                
+                                    <option value="hcooh">hcooh</option>
+                                
+                                    <option value="hno₃">hno₃</option>
+                                
+                                    <option value="h₂so₃">h₂so₃</option>
+                                
+                                    <option value="axanthin">axanthin</option>
+                                
+                                    <option value="demineralization">demineralization</option>
+                                
+                                    <option value="grinding">grinding</option>
+                                
+                                    <option value="microwave radiation">microwave radiation</option>
+                                
+                                    <option value="sieving">sieving</option>
+                                
+                                    <option value="uncontrolled degradation">uncontrolled degradation</option>
+                                
+                                    <option value="wet processing">wet processing</option>
+                                
+                                    <option value="sodium hypochlorite">sodium hypochlorite</option>
+                                
+                                    <option value="β-carotene">β-carotene</option>
+                                
+                                    <option value="organic acids">organic acids</option>
+                                
+                                    <option value="ball mill">ball mill</option>
+                                
+                                    <option value="interstitial regions">interstitial regions</option>
+                                
+                                    <option value="center region">center region</option>
+                                
+                                    <option value="heterogeneous models">heterogeneous models</option>
+                                
+                                    <option value="stellate 'trabecular tesserae'">stellate 'trabecular tesserae'</option>
+                                
+                                    <option value="elasmobranch joints">elasmobranch joints</option>
+                                
+                                    <option value="laminae">laminae</option>
+                                
+                                    <option value="support/dragline silk">support/dragline silk</option>
+                                
+                                    <option value="cell cycle distribution">cell cycle distribution</option>
+                                
+                                    <option value="honeycomb-patterned structure">honeycomb-patterned structure</option>
+                                
+                                    <option value="ice particulates">ice particulates</option>
+                                
+                                    <option value="surface patterning modification">surface patterning modification</option>
+                                
+                                    <option value="nonlithographic micromachining processes">nonlithographic micromachining processes</option>
+                                
+                                    <option value="biological applications">biological applications</option>
+                                
+                                    <option value="tailored material properties">tailored material properties</option>
+                                
+                                    <option value="(l x b x h =) (25 x 4 x 1)">(l x b x h =) (25 x 4 x 1)</option>
+                                
+                                    <option value="bone lamellae">bone lamellae</option>
+                                
+                                    <option value="atomic force microscopy measurements">atomic force microscopy measurements</option>
+                                
+                                    <option value="center region diameter">center region diameter</option>
+                                
+                                    <option value="cross-β fold">cross-β fold</option>
+                                
+                                    <option value="mg-rich carbonated hydroxyapatite nanocrystals">mg-rich carbonated hydroxyapatite nanocrystals</option>
+                                
+                                    <option value="staggered collagen molecules">staggered collagen molecules</option>
+                                
+                                    <option value="schregter pattern">schregter pattern</option>
+                                
+                                    <option value="rotated-plywood structure">rotated-plywood structure</option>
+                                
+                                    <option value="(q(omega)) approach">(q(omega)) approach</option>
+                                
+                                    <option value="(omega(q)) approach">(omega(q)) approach</option>
+                                
+                                    <option value="finite element method simulations">finite element method simulations</option>
+                                
+                                    <option value="low-reflecting boundary conditions">low-reflecting boundary conditions</option>
+                                
+                                    <option value="plane waves">plane waves</option>
+                                
+                                    <option value="symmetry conditions">symmetry conditions</option>
+                                
+                                    <option value="impulsive phenomena">impulsive phenomena</option>
+                                
+                                    <option value="steady-state wave fields">steady-state wave fields</option>
+                                
+                                    <option value="had roughness parameters obtained">had roughness parameters obtained</option>
+                                
+                                    <option value="tip-to-parallel collector distance">tip-to-parallel collector distance</option>
+                                
+                                    <option value="voltage difference">voltage difference</option>
+                                
+                                    <option value="around 60-70% rh">around 60-70% rh</option>
+                                
+                                    <option value="assembled pan nanofiber bundles">assembled pan nanofiber bundles</option>
+                                
+                                    <option value="cylinder speed">cylinder speed</option>
+                                
+                                    <option value="mass flow rate">mass flow rate</option>
+                                
+                                    <option value="tip-to-cylinder collector distance">tip-to-cylinder collector distance</option>
+                                
+                                    <option value="strain release process">strain release process</option>
+                                
+                                    <option value="collagen fiber formation">collagen fiber formation</option>
+                                
+                                    <option value="collagen hydrogel alignment">collagen hydrogel alignment</option>
+                                
+                                    <option value="lower temperatures">lower temperatures</option>
+                                
+                                    <option value="spatial uniformity">spatial uniformity</option>
+                                
+                                    <option value="green hydrogen production">green hydrogen production</option>
+                                
+                                    <option value="garden design">garden design</option>
+                                
+                                    <option value="graden">graden</option>
+                                
+                                    <option value="further development">further development</option>
+                                
+                                    <option value="platelet aspect ratios">platelet aspect ratios</option>
+                                
+                                    <option value="critical aspect ratio">critical aspect ratio</option>
+                                
+                                    <option value="high_aspect_ratio">high_aspect_ratio</option>
+                                
+                                    <option value="low aspect ratios">low aspect ratios</option>
+                                
+                                    <option value="regularly staggered model">regularly staggered model</option>
+                                
+                                    <option value="stair-wise staggered model">stair-wise staggered model</option>
+                                
+                                    <option value="junction">junction</option>
+                                
+                                    <option value="barrier material">barrier material</option>
+                                
+                                    <option value="adjacent environments">adjacent environments</option>
+                                
+                                    <option value="ions">ions</option>
+                                
+                                    <option value="nutrients">nutrients</option>
+                                
+                                    <option value="3dhydrousnetworks">3dhydrousnetworks</option>
+                                
+                                    <option value="intermediate levels of hierarchy">intermediate levels of hierarchy</option>
+                                
+                                    <option value="level of hierarchical complexity">level of hierarchical complexity</option>
+                                
+                                    <option value="hierarchical nanostructural geometries">hierarchical nanostructural geometries</option>
+                                
+                                    <option value="f_x">f_x</option>
+                                
+                                    <option value="k_x">k_x</option>
+                                
+                                    <option value="l_x">l_x</option>
+                                
+                                    <option value="significantly increase fracture toughness">significantly increase fracture toughness</option>
+                                
+                                    <option value="nonlinear-elastic fracture mechanics methods">nonlinear-elastic fracture mechanics methods</option>
+                                
+                                    <option value="characteristic diameters">characteristic diameters</option>
+                                
+                                    <option value="separation of lamellae">separation of lamellae</option>
+                                
+                                    <option value="atr-ftir">atr-ftir</option>
+                                
+                                    <option value="chemically modified pdms substrates">chemically modified pdms substrates</option>
+                                
+                                    <option value="hydrogel coated pdms substrates">hydrogel coated pdms substrates</option>
+                                
+                                    <option value="skeleton">skeleton</option>
+                                
+                                    <option value="analysis">analysis</option>
+                                
+                                    <option value="conductive flakes">conductive flakes</option>
+                                
+                                    <option value="drop in electrical resistance">drop in electrical resistance</option>
+                                
+                                    <option value="high electrical resistance">high electrical resistance</option>
+                                
+                                    <option value="nickel flakes">nickel flakes</option>
+                                
+                                    <option value="single hb rupture">single hb rupture</option>
+                                
+                                    <option value="materials engineering challenges">materials engineering challenges</option>
+                                
+                                    <option value="scientific significance">scientific significance</option>
+                                
+                                    <option value="societal risks">societal risks</option>
+                                
+                                    <option value="structure-property correlations">structure-property correlations</option>
+                                
+                                    <option value="theoretical framework">theoretical framework</option>
+                                
+                                    <option value="materials terminology">materials terminology</option>
+                                
+                                    <option value="interdisciplinary collaboration">interdisciplinary collaboration</option>
+                                
+                                    <option value="biological structure researchers">biological structure researchers</option>
+                                
+                                    <option value="enhanced accessibility">enhanced accessibility</option>
+                                
+                                    <option value="pm filtration efficiency">pm filtration efficiency</option>
+                                
+                                    <option value="polyacrylonitrile (pan) fibers">polyacrylonitrile (pan) fibers</option>
+                                
+                                    <option value="positive charge">positive charge</option>
+                                
+                                    <option value="breathability">breathability</option>
+                                
+                                    <option value="producing advanced structural materials">producing advanced structural materials</option>
+                                
+                                    <option value="epithelial tissues">epithelial tissues</option>
+                                
+                                    <option value="carbonate groups">carbonate groups</option>
+                                
+                                    <option value="surface hardness">surface hardness</option>
+                                
+                                    <option value="mineral distribution">mineral distribution</option>
+                                
+                                    <option value="unsm">unsm</option>
+                                
+                                    <option value="balsa wood">balsa wood</option>
+                                
+                                    <option value="higher density-normalized">higher density-normalized</option>
+                                
+                                    <option value="staghorn cholla cactus">staghorn cholla cactus</option>
+                                
+                                    <option value="axial crack propagating along the entire length of the internode">axial crack propagating along the entire length of the internode</option>
+                                
+                                    <option value="conventional wood mesostructure">conventional wood mesostructure</option>
+                                
+                                    <option value="diffuse-porous arrangement">diffuse-porous arrangement</option>
+                                
+                                    <option value="large thin-walled vessels">large thin-walled vessels</option>
+                                
+                                    <option value="lower shear modulus than">lower shear modulus than</option>
+                                
+                                    <option value="specific effective shear modulus">specific effective shear modulus</option>
+                                
+                                    <option value="specific shear strength">specific shear strength</option>
+                                
+                                    <option value="specific toughness">specific toughness</option>
+                                
+                                    <option value="crustacean cuticles and freshwater crayfish mandibles">crustacean cuticles and freshwater crayfish mandibles</option>
+                                
+                                    <option value="dynamically tunable protein microlenses">dynamically tunable protein microlenses</option>
+                                
+                                    <option value="liquid trapping">liquid trapping</option>
+                                
+                                    <option value="optical systems">optical systems</option>
+                                
+                                    <option value="shape-controllable microlens arrays">shape-controllable microlens arrays</option>
+                                
+                                    <option value="aberration-free">aberration-free</option>
+                                
+                                    <option value="angular selectivity">angular selectivity</option>
+                                
+                                    <option value="birefringence-free">birefringence-free</option>
+                                
+                                    <option value="individually addressed">individually addressed</option>
+                                
+                                    <option value="intensity adjustment">intensity adjustment</option>
+                                
+                                    <option value="mechanically strong">mechanically strong</option>
+                                
+                                    <option value="ophicosoma wendtii">ophicosoma wendtii</option>
+                                
+                                    <option value="nerve bundles">nerve bundles</option>
+                                
+                                    <option value="photochromic activity">photochromic activity</option>
+                                
+                                    <option value="signal enhancement">signal enhancement</option>
+                                
+                                    <option value="unique focusing effects">unique focusing effects</option>
+                                
+                                    <option value="bone-implant interface connection">bone-implant interface connection</option>
+                                
+                                    <option value="implanted rods">implanted rods</option>
+                                
+                                    <option value="in vivo osteogenesis">in vivo osteogenesis</option>
+                                
+                                    <option value="osteoblast differentiation">osteoblast differentiation</option>
+                                
+                                    <option value="cell membrane receptors">cell membrane receptors</option>
+                                
+                                    <option value="construct">construct</option>
+                                
+                                    <option value="micro/nano composite structures">micro/nano composite structures</option>
+                                
+                                    <option value="trabecular number">trabecular number</option>
+                                
+                                    <option value="trabecular bone spacing">trabecular bone spacing</option>
+                                
+                                    <option value="trabecular bone thickness">trabecular bone thickness</option>
+                                
+                                    <option value="no significant difference">no significant difference</option>
+                                
+                                    <option value="three-dimensional morphologies">three-dimensional morphologies</option>
+                                
+                                    <option value="environmental impact">environmental impact</option>
+                                
+                                    <option value="reduction of water loss">reduction of water loss</option>
+                                
+                                    <option value="barthelat and espinosa">barthelat and espinosa</option>
+                                
+                                    <option value="axial splitting cracks">axial splitting cracks</option>
+                                
+                                    <option value="higher compressive strengths">higher compressive strengths</option>
+                                
+                                    <option value="loading orientations">loading orientations</option>
+                                
+                                    <option value="platforms">platforms</option>
+                                
+                                    <option value="s. purpuratus shells">s. purpuratus shells</option>
+                                
+                                    <option value="complex pore structure">complex pore structure</option>
+                                
+                                    <option value="fiber solid content">fiber solid content</option>
+                                
+                                    <option value="fluid transport properties">fluid transport properties</option>
+                                
+                                    <option value="hydraulic permeability">hydraulic permeability</option>
+                                
+                                    <option value="kirchhoff-love theory">kirchhoff-love theory</option>
+                                
+                                    <option value="annular">annular</option>
+                                
+                                    <option value="clamped">clamped</option>
+                                
+                                    <option value="concentrated force">concentrated force</option>
+                                
+                                    <option value="constant curvature radius">constant curvature radius</option>
+                                
+                                    <option value="curved">curved</option>
+                                
+                                    <option value="hollow">hollow</option>
+                                
+                                    <option value="homogeneous">homogeneous</option>
+                                
+                                    <option value="isotropic">isotropic</option>
+                                
+                                    <option value="planar">planar</option>
+                                
+                                    <option value="tapering">tapering</option>
+                                
+                                    <option value="isotropic phase">isotropic phase</option>
+                                
+                                    <option value="neo-hookean model">neo-hookean model</option>
+                                
+                                    <option value="leaf veins">leaf veins</option>
+                                
+                                    <option value="vein distribution">vein distribution</option>
+                                
+                                    <option value="newsprint">newsprint</option>
+                                
+                                    <option value="low initial efficiency">low initial efficiency</option>
+                                
+                                    <option value="polyethylene">polyethylene</option>
+                                
+                                    <option value="tracing paper">tracing paper</option>
+                                
+                                    <option value="protocols">protocols</option>
+                                
+                                    <option value="hierarchical levels">hierarchical levels</option>
+                                
+                                    <option value="larger-scale protein structures">larger-scale protein structures</option>
+                                
+                                    <option value="slippage">slippage</option>
+                                
+                                    <option value="execution time">execution time</option>
+                                
+                                    <option value="market conditions">market conditions</option>
+                                
+                                    <option value="market depth">market depth</option>
+                                
+                                    <option value="market impact">market impact</option>
+                                
+                                    <option value="market liquidity">market liquidity</option>
+                                
+                                    <option value="market microstructure">market microstructure</option>
+                                
+                                    <option value="market structure">market structure</option>
+                                
+                                    <option value="market volatility">market volatility</option>
+                                
+                                    <option value="order size">order size</option>
+                                
+                                    <option value="trading strategy">trading strategy</option>
+                                
+                                    <option value="precise_tissue_regeneration">precise_tissue_regeneration</option>
+                                
+                                    <option value="advanced_composites">advanced_composites</option>
+                                
+                                    <option value="multimaterials">multimaterials</option>
+                                
+                                    <option value="multifunctional_biomaterials">multifunctional_biomaterials</option>
+                                
+                                    <option value="3d_printing">3d_printing</option>
+                                
+                                    <option value="adaptive properties">adaptive properties</option>
+                                
+                                    <option value="biologically active">biologically active</option>
+                                
+                                    <option value="batch-to-batch variability">batch-to-batch variability</option>
+                                
+                                    <option value="regulatory environment">regulatory environment</option>
+                                
+                                    <option value="soft matrix material">soft matrix material</option>
+                                
+                                    <option value="complex 3d microfluidic channels">complex 3d microfluidic channels</option>
+                                
+                                    <option value="hydrophobic properties">hydrophobic properties</option>
+                                
+                                    <option value="ceramic bridges between layers">ceramic bridges between layers</option>
+                                
+                                    <option value="ceramic slurries">ceramic slurries</option>
+                                
+                                    <option value="controlled unidirectional freezing">controlled unidirectional freezing</option>
+                                
+                                    <option value="deville et al.'s study">deville et al.'s study</option>
+                                
+                                    <option value="layered-hybrid materials">layered-hybrid materials</option>
+                                
+                                    <option value="homogenous">homogenous</option>
+                                
+                                    <option value="layered">layered</option>
+                                
+                                    <option value="parallel layers">parallel layers</option>
+                                
+                                    <option value="spontaneous surface roughness">spontaneous surface roughness</option>
+                                
+                                    <option value="trapped particles between ice dendrites">trapped particles between ice dendrites</option>
+                                
+                                    <option value="unique approach">unique approach</option>
+                                
+                                    <option value="al/al2o3 hierarchical composites">al/al2o3 hierarchical composites</option>
+                                
+                                    <option value="porous ceramic scaffolds">porous ceramic scaffolds</option>
+                                
+                                    <option value="bioinspired architecture">bioinspired architecture</option>
+                                
+                                    <option value="cellular alignment">cellular alignment</option>
+                                
+                                    <option value="chondrocyte gene expression">chondrocyte gene expression</option>
+                                
+                                    <option value="monolayer-cultured chondrocytes">monolayer-cultured chondrocytes</option>
+                                
+                                    <option value="native cartilage cells">native cartilage cells</option>
+                                
+                                    <option value="pericellular matrix">pericellular matrix</option>
+                                
+                                    <option value="nuclear alignment">nuclear alignment</option>
+                                
+                                    <option value="type vi collagen">type vi collagen</option>
+                                
+                                    <option value="calcite plates">calcite plates</option>
+                                
+                                    <option value="banana curve">banana curve</option>
+                                
+                                    <option value="evolutionary pressures">evolutionary pressures</option>
+                                
+                                    <option value="hierarchies">hierarchies</option>
+                                
+                                    <option value="inverse behavior">inverse behavior</option>
+                                
+                                    <option value="less than 2% of all structures">less than 2% of all structures</option>
+                                
+                                    <option value="multiple objectives">multiple objectives</option>
+                                
+                                    <option value="subelements">subelements</option>
+                                
+                                    <option value="three levels of hierarchy">three levels of hierarchy</option>
+                                
+                                    <option value="certain materials">certain materials</option>
+                                
+                                    <option value="haliotis pulcherina shells">haliotis pulcherina shells</option>
+                                
+                                    <option value="haliotis rufescens shells">haliotis rufescens shells</option>
+                                
+                                    <option value="controlled biomineralization systems">controlled biomineralization systems</option>
+                                
+                                    <option value="evolutionary advantage">evolutionary advantage</option>
+                                
+                                    <option value="genetically conserved">genetically conserved</option>
+                                
+                                    <option value="mechanically advantageous">mechanically advantageous</option>
+                                
+                                    <option value="nacreous shell regions">nacreous shell regions</option>
+                                
+                                    <option value="prismatic shell regions">prismatic shell regions</option>
+                                
+                                    <option value="bridging attraction">bridging attraction</option>
+                                
+                                    <option value="compression-induced repulsion">compression-induced repulsion</option>
+                                
+                                    <option value="depletion attraction">depletion attraction</option>
+                                
+                                    <option value="diagnostics">diagnostics</option>
+                                
+                                    <option value="overlapping polymer layers">overlapping polymer layers</option>
+                                
+                                    <option value="repulsion">repulsion</option>
+                                
+                                    <option value="stabilization">stabilization</option>
+                                
+                                    <option value="abrupt transition">abrupt transition</option>
+                                
+                                    <option value="angled disrupted fibrillar morphology">angled disrupted fibrillar morphology</option>
+                                
+                                    <option value="banding periodicity">banding periodicity</option>
+                                
+                                    <option value="decorin">decorin</option>
+                                
+                                    <option value="shorter fibrils">shorter fibrils</option>
+                                
+                                    <option value="swirling morphology">swirling morphology</option>
+                                
+                                    <option value="thin air films">thin air films</option>
+                                
+                                    <option value="gas exchange">gas exchange</option>
+                                
+                                    <option value="circular shape">circular shape</option>
+                                
+                                    <option value="nonlinearly increasing sensitivity">nonlinearly increasing sensitivity</option>
+                                
+                                    <option value="robust and releasable adhesives">robust and releasable adhesives</option>
+                                
+                                    <option value="material failure probability">material failure probability</option>
+                                
+                                    <option value="reliability">reliability</option>
+                                
+                                    <option value="variability">variability</option>
+                                
+                                    <option value="carbonate to phosphate ratio">carbonate to phosphate ratio</option>
+                                
+                                    <option value="biocompatibility demonstrated">biocompatibility demonstrated</option>
+                                
+                                    <option value="biocompatibility benefits">biocompatibility benefits</option>
+                                
+                                    <option value="cell growth tailoring through control of cnt carpet height">cell growth tailoring through control of cnt carpet height</option>
+                                
+                                    <option value="tunable surface architecture benefits">tunable surface architecture benefits</option>
+                                
+                                    <option value="cell growth tailoring through control of surface wettability">cell growth tailoring through control of surface wettability</option>
+                                
+                                    <option value="cytoprotection against environmental stressors demonstrated">cytoprotection against environmental stressors demonstrated</option>
+                                
+                                    <option value="directed cell growth demonstrated">directed cell growth demonstrated</option>
+                                
+                                    <option value="engineered carbon scaffolds">engineered carbon scaffolds</option>
+                                
+                                    <option value="structural durability benefits">structural durability benefits</option>
+                                
+                                    <option value="ultra-high specific surface area benefits">ultra-high specific surface area benefits</option>
+                                
+                                    <option value="strategic wound healing potential">strategic wound healing potential</option>
+                                
+                                    <option value="tissue regeneration potential">tissue regeneration potential</option>
+                                
+                                    <option value="3d mesh models">3d mesh models</option>
+                                
+                                    <option value="mesh strut diameters">mesh strut diameters</option>
+                                
+                                    <option value="cytoplasmic movement">cytoplasmic movement</option>
+                                
+                                    <option value="mechanical influences">mechanical influences</option>
+                                
+                                    <option value="physicochemical influences">physicochemical influences</option>
+                                
+                                    <option value="thermal influences">thermal influences</option>
+                                
+                                    <option value="protein structures">protein structures</option>
+                                
+                                    <option value="honeycomb channels">honeycomb channels</option>
+                                
+                                    <option value="multilevel chirality">multilevel chirality</option>
+                                
+                                    <option value="extensional strain rate">extensional strain rate</option>
+                                
+                                    <option value="highly aligned collagen fibers">highly aligned collagen fibers</option>
+                                
+                                    <option value="faster velocity">faster velocity</option>
+                                
+                                    <option value="controlled assembly via flow-induced crystallization">controlled assembly via flow-induced crystallization</option>
+                                
+                                    <option value="starting concentration">starting concentration</option>
+                                
+                                    <option value="initial wait step">initial wait step</option>
+                                
+                                    <option value="slower starting velocity">slower starting velocity</option>
+                                
+                                    <option value="speed of enrichment depletion from the droplet">speed of enrichment depletion from the droplet</option>
+                                
+                                    <option value="extensional strain">extensional strain</option>
+                                
+                                    <option value="fibril progression from short segments to tissue continuity">fibril progression from short segments to tissue continuity</option>
+                                
+                                    <option value="presented mesoscale electrostatic film actuators">presented mesoscale electrostatic film actuators</option>
+                                
+                                    <option value="capabilities and functionality">capabilities and functionality</option>
+                                
+                                    <option value="crystal sample">crystal sample</option>
+                                
+                                    <option value="known patterns">known patterns</option>
+                                
+                                    <option value="mathematical methods">mathematical methods</option>
+                                
+                                    <option value="base materials">base materials</option>
+                                
+                                    <option value="conductive yarns">conductive yarns</option>
+                                
+                                    <option value="knit sensors">knit sensors</option>
+                                
+                                    <option value="knit structures">knit structures</option>
+                                
+                                    <option value="ecm functionality">ecm functionality</option>
+                                
+                                    <option value="junctions connecting to other tissues">junctions connecting to other tissues</option>
+                                
+                                    <option value="collagen fiber bundles lined with tenocytes">collagen fiber bundles lined with tenocytes</option>
+                                
+                                    <option value="muscle-tendon junction (mtj)">muscle-tendon junction (mtj)</option>
+                                
+                                    <option value="satellite cells">satellite cells</option>
+                                
+                                    <option value="capillary functions">capillary functions</option>
+                                
+                                    <option value="intercellular crack blocking">intercellular crack blocking</option>
+                                
+                                    <option value="disease progression">disease progression</option>
+                                
+                                    <option value="disease susceptibility">disease susceptibility</option>
+                                
+                                    <option value="medical advances">medical advances</option>
+                                
+                                    <option value="targeted therapies">targeted therapies</option>
+                                
+                                    <option value="am">am</option>
+                                
+                                    <option value="feiiiinducedsimultaneoussaltingoutandcoordinationcrosslinking">feiiiinducedsimultaneoussaltingoutandcoordinationcrosslinking</option>
+                                
+                                    <option value="complex geometries">complex geometries</option>
+                                
+                                    <option value="reduced material waste">reduced material waste</option>
+                                
+                                    <option value="shorter lead times">shorter lead times</option>
+                                
+                                    <option value="anrichclusters">anrichclusters</option>
+                                
+                                    <option value="dipoledipoleinteractions">dipoledipoleinteractions</option>
+                                
+                                    <option value="feiiicoooderivatives">feiiicoooderivatives</option>
+                                
+                                    <option value="hierarchicalanddynamichydrogelnetwork">hierarchicalanddynamichydrogelnetwork</option>
+                                
+                                    <option value="multisensorycapabilities">multisensorycapabilities</option>
+                                
+                                    <option value="ma">ma</option>
+                                
+                                    <option value="g292 cells">g292 cells</option>
+                                
+                                    <option value="ultrahard coatings">ultrahard coatings</option>
+                                
+                                    <option value="ure">ure</option>
+                                
+                                    <option value="interactionforces">interactionforces</option>
+                                
+                                    <option value="materialbehavior">materialbehavior</option>
+                                
+                                    <option value="microscalephenomena">microscalephenomena</option>
+                                
+                                    <option value="stressstrainrelations">stressstrainrelations</option>
+                                
+                                    <option value="experimentaldetermination">experimentaldetermination</option>
+                                
+                                    <option value="theoreticalcalculation">theoreticalcalculation</option>
+                                
+                                    <option value="measuringdevices">measuringdevices</option>
+                                
+                                    <option value="specificprocedures">specificprocedures</option>
+                                
+                                    <option value="specimensizes">specimensizes</option>
+                                
+                                    <option value="theoreticalmodels">theoreticalmodels</option>
+                                
+                                    <option value="wellcontrolledexperiments">wellcontrolledexperiments</option>
+                                
+                                    <option value="closureschemes">closureschemes</option>
+                                
+                                    <option value="processmodels">processmodels</option>
+                                
+                                    <option value="structuralmodels">structuralmodels</option>
+                                
+                                    <option value="constituentphases">constituentphases</option>
+                                
+                                    <option value="atypical femur fractures (1)">atypical femur fractures (1)</option>
+                                
+                                    <option value="bisphosphonate therapy (2)">bisphosphonate therapy (2)</option>
+                                
+                                    <option value="alternative therapies (8)">alternative therapies (8)</option>
+                                
+                                    <option value="bone metastases (4)">bone metastases (4)</option>
+                                
+                                    <option value="bone mineral density (9)">bone mineral density (9)</option>
+                                
+                                    <option value="bone quality (10)">bone quality (10)</option>
+                                
+                                    <option value="fracture risk (11)">fracture risk (11)</option>
+                                
+                                    <option value="high doses (5)">high doses (5)</option>
+                                
+                                    <option value="low-trauma fracture risk patients (7)">low-trauma fracture risk patients (7)</option>
+                                
+                                    <option value="osteoporosis (3)">osteoporosis (3)</option>
+                                
+                                    <option value="prolonged treatment (6)">prolonged treatment (6)</option>
+                                
+                                    <option value="bone remodeling (14)">bone remodeling (14)</option>
+                                
+                                    <option value="bone strength (16)">bone strength (16)</option>
+                                
+                                    <option value="multilevel characterization (18)">multilevel characterization (18)</option>
+                                
+                                    <option value="nanoscale level (12)">nanoscale level (12)</option>
+                                
+                                    <option value="periosteal region">periosteal region</option>
+                                
+                                    <option value="medical bio-sensing devices for healthcare monitoring">medical bio-sensing devices for healthcare monitoring</option>
+                                
+                                    <option value="piezoelectric sensing">piezoelectric sensing</option>
+                                
+                                    <option value="tactile sensors">tactile sensors</option>
+                                
+                                    <option value="hard metal circuits">hard metal circuits</option>
+                                
+                                    <option value="polymer microframes">polymer microframes</option>
+                                
+                                    <option value="acoustic band structures">acoustic band structures</option>
+                                
+                                    <option value="exceptional toughness">exceptional toughness</option>
+                                
+                                    <option value="functionalities">functionalities</option>
+                                
+                                    <option value="overall stretchability">overall stretchability</option>
+                                
+                                    <option value="mechanical deformation mismatch">mechanical deformation mismatch</option>
+                                
+                                    <option value="rotation behavior">rotation behavior</option>
+                                
+                                    <option value="theoretical frameworks">theoretical frameworks</option>
+                                
+                                    <option value="inorganic minerals">inorganic minerals</option>
+                                
+                                    <option value="mineralized biopolymers">mineralized biopolymers</option>
+                                
+                                    <option value="organic biopolymers">organic biopolymers</option>
+                                
+                                    <option value="staggered mineral platelets">staggered mineral platelets</option>
+                                
+                                    <option value="pnipam chains">pnipam chains</option>
+                                
+                                    <option value="collapsed polymer network">collapsed polymer network</option>
+                                
+                                    <option value="globular conformation">globular conformation</option>
+                                
+                                    <option value="increased diffusion">increased diffusion</option>
+                                
+                                    <option value="thermally triggered drug delivery">thermally triggered drug delivery</option>
+                                
+                                    <option value="fiber separation">fiber separation</option>
+                                
+                                    <option value="intralamellar debonding">intralamellar debonding</option>
+                                
+                                    <option value="interlamellar debonding">interlamellar debonding</option>
+                                
+                                    <option value="intralamellar rupture">intralamellar rupture</option>
+                                
+                                    <option value="macroscopic axial splitting">macroscopic axial splitting</option>
+                                
+                                    <option value="splitting planes">splitting planes</option>
+                                
+                                    <option value="subsent buckling">subsent buckling</option>
+                                
+                                    <option value="theoretical buckling strength">theoretical buckling strength</option>
+                                
+                                    <option value="zig-zag fracture morphology">zig-zag fracture morphology</option>
+                                
+                                    <option value="bird">bird</option>
+                                
+                                    <option value="animal">animal</option>
+                                
+                                    <option value="eagle">eagle</option>
+                                
+                                    <option value="fish">fish</option>
+                                
+                                    <option value="shark">shark</option>
+                                
+                                    <option value="fish/reptiles">fish/reptiles</option>
+                                
+                                    <option value="various materials such as metals or non-metals">various materials such as metals or non-metals</option>
+                                
+                                    <option value="traditional_methods">traditional_methods</option>
+                                
+                                    <option value="hierarchical_surface_structures">hierarchical_surface_structures</option>
+                                
+                                    <option value="niti_implant_materials">niti_implant_materials</option>
+                                
+                                    <option value="scratch_hardness">scratch_hardness</option>
+                                
+                                    <option value="argopecten argo shell">argopecten argo shell</option>
+                                
+                                    <option value="nautilus pompilius shell">nautilus pompilius shell</option>
+                                
+                                    <option value="bone marrow stromal cells">bone marrow stromal cells</option>
+                                
+                                    <option value="high-voltage electrostatic fields">high-voltage electrostatic fields</option>
+                                
+                                    <option value="ts-junctions">ts-junctions</option>
+                                
+                                    <option value="c-axis orientation">c-axis orientation</option>
+                                
+                                    <option value="surface normal direction">surface normal direction</option>
+                                
+                                    <option value="triangular suture profile">triangular suture profile</option>
+                                
+                                    <option value="ultralow frequency">ultralow frequency</option>
+                                
+                                    <option value="darcy's law">darcy's law</option>
+                                
+                                    <option value="single-phase fluid">single-phase fluid</option>
+                                
+                                    <option value="fluid transport ability">fluid transport ability</option>
+                                
+                                    <option value="fluid flow behavior">fluid flow behavior</option>
+                                
+                                    <option value="pressure distribution">pressure distribution</option>
+                                
+                                    <option value="afractosteus spatula">afractosteus spatula</option>
+                                
+                                    <option value="multilayer">multilayer</option>
+                                
+                                    <option value="adjacent scutes">adjacent scutes</option>
+                                
+                                    <option value="gecko seta">gecko seta</option>
+                                
+                                    <option value="seta shaft">seta shaft</option>
+                                
+                                    <option value="high surface polarity">high surface polarity</option>
+                                
+                                    <option value="fracture behavior">fracture behavior</option>
+                                
+                                    <option value="coconut endocarp">coconut endocarp</option>
+                                
+                                    <option value="constrained samples">constrained samples</option>
+                                
+                                    <option value="dynamic loading">dynamic loading</option>
+                                
+                                    <option value="longitudinal orientation">longitudinal orientation</option>
+                                
+                                    <option value="rectangular samples">rectangular samples</option>
+                                
+                                    <option value="three different shapes">three different shapes</option>
+                                
+                                    <option value="unconstrained samples">unconstrained samples</option>
+                                
+                                    <option value="fuhs et al.'s study">fuhs et al.'s study</option>
+                                
+                                    <option value="natural hoof samples">natural hoof samples</option>
+                                
+                                    <option value="racehorses">racehorses</option>
+                                
+                                    <option value="mucoadhesive polymer">mucoadhesive polymer</option>
+                                
+                                    <option value="mathematical model">mathematical model</option>
+                                
+                                    <option value="solid dosage forms">solid dosage forms</option>
+                                
+                                    <option value="high-performance composite films">high-performance composite films</option>
+                                
+                                    <option value="lower compressive modulus compared to tensile modulus">lower compressive modulus compared to tensile modulus</option>
+                                
+                                    <option value="bighorn sheep horn sheath">bighorn sheep horn sheath</option>
+                                
+                                    <option value="distortion of hollow cavities">distortion of hollow cavities</option>
+                                
+                                    <option value="fiber filament pull-out">fiber filament pull-out</option>
+                                
+                                    <option value="macroscale delamination">macroscale delamination</option>
+                                
+                                    <option value="male domestic cattle horn sheath">male domestic cattle horn sheath</option>
+                                
+                                    <option value="mesoscale shear deformation">mesoscale shear deformation</option>
+                                
+                                    <option value="microcosmic matrix cracking">microcosmic matrix cracking</option>
+                                
+                                    <option value="plastic performance">plastic performance</option>
+                                
+                                    <option value="additive manufacturing of polyhipes via stereolithography">additive manufacturing of polyhipes via stereolithography</option>
+                                
+                                    <option value="open surface porosity">open surface porosity</option>
+                                
+                                    <option value="polyhipe">polyhipe</option>
+                                
+                                    <option value="bulk polymerization">bulk polymerization</option>
+                                
+                                    <option value="closed surface porosity">closed surface porosity</option>
+                                
+                                    <option value="surface skin layer">surface skin layer</option>
+                                
+                                    <option value="emulsion-mould interface">emulsion-mould interface</option>
+                                
+                                    <option value="elimination of closed surface porosity">elimination of closed surface porosity</option>
+                                
+                                    <option value="improved cell ingrowth">improved cell ingrowth</option>
+                                
+                                    <option value="internal porosity">internal porosity</option>
+                                
+                                    <option value="mitigates physical barriers">mitigates physical barriers</option>
+                                
+                                    <option value="hipe">hipe</option>
+                                
+                                    <option value="localized collapse">localized collapse</option>
+                                
+                                    <option value="closed-pore skin layer">closed-pore skin layer</option>
+                                
+                                    <option value="apcs">apcs</option>
+                                
+                                    <option value="antigens">antigens</option>
+                                
+                                    <option value="fdcs">fdcs</option>
+                                
+                                    <option value="less deformable planar lipid bilayers">less deformable planar lipid bilayers</option>
+                                
+                                    <option value="softer plasma membrane sheets">softer plasma membrane sheets</option>
+                                
+                                    <option value="stiffer substrates">stiffer substrates</option>
+                                
+                                    <option value="higher membrane stiffness">higher membrane stiffness</option>
+                                
+                                    <option value="cellulose scaffold (cs)">cellulose scaffold (cs)</option>
+                                
+                                    <option value="edx">edx</option>
+                                
+                                    <option value="fluorescence and magnetism">fluorescence and magnetism</option>
+                                
+                                    <option value="shape control">shape control</option>
+                                
+                                    <option value="compact sheet">compact sheet</option>
+                                
+                                    <option value="cuts into crease pattern">cuts into crease pattern</option>
+                                
+                                    <option value="hybrid assembly">hybrid assembly</option>
+                                
+                                    <option value="matching hinges">matching hinges</option>
+                                
+                                    <option value="multiple folding states">multiple folding states</option>
+                                
+                                    <option value="n-sided polygonal bases">n-sided polygonal bases</option>
+                                
+                                    <option value="no self-overlapping">no self-overlapping</option>
+                                
+                                    <option value="parallel assembly">parallel assembly</option>
+                                
+                                    <option value="prismatic mbu">prismatic mbu</option>
+                                
+                                    <option value="pyramidal mbu">pyramidal mbu</option>
+                                
+                                    <option value="reconfigurable architecture">reconfigurable architecture</option>
+                                
+                                    <option value="reconfigurable properties">reconfigurable properties</option>
+                                
+                                    <option value="self-reconfigurable">self-reconfigurable</option>
+                                
+                                    <option value="serial assembly">serial assembly</option>
+                                
+                                    <option value="skew perpendicularity">skew perpendicularity</option>
+                                
+                                    <option value="symmetry about common hinge axis">symmetry about common hinge axis</option>
+                                
+                                    <option value="biomimetic ceramic-polymer composites">biomimetic ceramic-polymer composites</option>
+                                
+                                    <option value="biomimesis">biomimesis</option>
+                                
+                                    <option value="universal structures">universal structures</option>
+                                
+                                    <option value="acl">acl</option>
+                                
+                                    <option value="double bundle reconstruction technique">double bundle reconstruction technique</option>
+                                
+                                    <option value="fatigue failure">fatigue failure</option>
+                                
+                                    <option value="natural ligaments">natural ligaments</option>
+                                
+                                    <option value="axial stretching">axial stretching</option>
+                                
+                                    <option value="model predictions">model predictions</option>
+                                
+                                    <option value="parameter identification">parameter identification</option>
+                                
+                                    <option value="matlab software">matlab software</option>
+                                
+                                    <option value="fiber volume fraction (fvf)">fiber volume fraction (fvf)</option>
+                                
+                                    <option value="thickness ratio">thickness ratio</option>
+                                
+                                    <option value="apatite crystals and dental hard tissues">apatite crystals and dental hard tissues</option>
+                                
+                                    <option value="atomic ratios">atomic ratios</option>
+                                
+                                    <option value="fluoride">fluoride</option>
+                                
+                                    <option value="phosphorus">phosphorus</option>
+                                
+                                    <option value="fluorite phase">fluorite phase</option>
+                                
+                                    <option value="space group">space group</option>
+                                
+                                    <option value="structural parameters">structural parameters</option>
+                                
+                                    <option value="unit cell dimensions">unit cell dimensions</option>
+                                
+                                    <option value="e1">e1</option>
+                                
+                                    <option value="e2 modulus">e2 modulus</option>
+                                
+                                    <option value="cbt1">cbt1</option>
+                                
+                                    <option value="m2">m2</option>
+                                
+                                    <option value="m3">m3</option>
+                                
+                                    <option value="m4">m4</option>
+                                
+                                    <option value="saf2">saf2</option>
+                                
+                                    <option value="saf3">saf3</option>
+                                
+                                    <option value="tensile properties">tensile properties</option>
+                                
+                                    <option value="strain rate sensitivity">strain rate sensitivity</option>
+                                
+                                    <option value="thermal softening effects">thermal softening effects</option>
+                                
+                                    <option value="tangent delta">tangent delta</option>
+                                
+                                    <option value="e3 modulus">e3 modulus</option>
+                                
+                                    <option value="alpha-beta transition">alpha-beta transition</option>
+                                
+                                    <option value="disordered structure">disordered structure</option>
+                                
+                                    <option value="face-centered cubic lattice">face-centered cubic lattice</option>
+                                
+                                    <option value="expansion or contraction">expansion or contraction</option>
+                                
+                                    <option value="can change shape and orientation">can change shape and orientation</option>
+                                
+                                    <option value="reflective structures">reflective structures</option>
+                                
+                                    <option value="cephalopod skin">cephalopod skin</option>
+                                
+                                    <option value="cytoplasm">cytoplasm</option>
+                                
+                                    <option value="72 helix structure of peg">72 helix structure of peg</option>
+                                
+                                    <option value="crystallinity of peg">crystallinity of peg</option>
+                                
+                                    <option value="interactions between peg and other molecules">interactions between peg and other molecules</option>
+                                
+                                    <option value="melting transition of peg">melting transition of peg</option>
+                                
+                                    <option value="modified crystal structures of peg">modified crystal structures of peg</option>
+                                
+                                    <option value="beta-sheet content of peg">beta-sheet content of peg</option>
+                                
+                                    <option value="degree of crystallinity of peg">degree of crystallinity of peg</option>
+                                
+                                    <option value="other plants">other plants</option>
+                                
+                                    <option value="reduction of transpiration rates">reduction of transpiration rates</option>
+                                
+                                    <option value="uv protection">uv protection</option>
+                                
+                                    <option value="water repellent properties">water repellent properties</option>
+                                
+                                    <option value="cyclic compounds">cyclic compounds</option>
+                                
+                                    <option value="long-chain hydrocarbons">long-chain hydrocarbons</option>
+                                
+                                    <option value="monomolecular layers">monomolecular layers</option>
+                                
+                                    <option value="thick crusts">thick crusts</option>
+                                
+                                    <option value="d-diketone tubules">d-diketone tubules</option>
+                                
+                                    <option value="orthorhombic structure">orthorhombic structure</option>
+                                
+                                    <option value="secondary alcohol tubules">secondary alcohol tubules</option>
+                                
+                                    <option value="thin monolayer/bilayer films">thin monolayer/bilayer films</option>
+                                
+                                    <option value="ability to reversibly accept multiple electrons">ability to reversibly accept multiple electrons</option>
+                                
+                                    <option value="broad absorption spectra">broad absorption spectra</option>
+                                
+                                    <option value="fluorophores">fluorophores</option>
+                                
+                                    <option value="large surface area">large surface area</option>
+                                
+                                    <option value="targeted drug delivery">targeted drug delivery</option>
+                                
+                                    <option value="agilent biotek cytation5">agilent biotek cytation5</option>
+                                
+                                    <option value="hemostatic ability">hemostatic ability</option>
+                                
+                                    <option value="porous organic-inorganic hybrids">porous organic-inorganic hybrids</option>
+                                
+                                    <option value="catalyst supports">catalyst supports</option>
+                                
+                                    <option value="cell density">cell density</option>
+                                
+                                    <option value="material usage">material usage</option>
+                                
+                                    <option value="particulate filters">particulate filters</option>
+                                
+                                    <option value="controlling pore size">controlling pore size</option>
+                                
+                                    <option value="fibrillar microstructures">fibrillar microstructures</option>
+                                
+                                    <option value="pdms microfibrillar layer">pdms microfibrillar layer</option>
+                                
+                                    <option value="pyramidally-microstructured pdms layer">pyramidally-microstructured pdms layer</option>
+                                
+                                    <option value="cavitation">cavitation</option>
+                                
+                                    <option value="common cuttlefish">common cuttlefish</option>
+                                
+                                    <option value="constant pressure difference">constant pressure difference</option>
+                                
+                                    <option value="european squid">european squid</option>
+                                
+                                    <option value="well-defined secondary structure peaks of peg and peptide segment">well-defined secondary structure peaks of peg and peptide segment</option>
+                                
+                                    <option value="nanolithography">nanolithography</option>
+                                
+                                    <option value="semiconductor devices">semiconductor devices</option>
+                                
+                                    <option value="combustion resistance">combustion resistance</option>
+                                
+                                    <option value="high costs">high costs</option>
+                                
+                                    <option value="low thermal conductivity materials">low thermal conductivity materials</option>
+                                
+                                    <option value="raw source availability">raw source availability</option>
+                                
+                                    <option value="small-scale production">small-scale production</option>
+                                
+                                    <option value="synthetic components">synthetic components</option>
+                                
+                                    <option value="commercial structural fibers">commercial structural fibers</option>
+                                
+                                    <option value="kevlar">kevlar</option>
+                                
+                                    <option value="biological">biological</option>
+                                
+                                    <option value="biophysical">biophysical</option>
+                                
+                                    <option value="chemical">chemical</option>
+                                
+                                    <option value="fluorescence spectroscopy">fluorescence spectroscopy</option>
+                                
+                                    <option value="nanocellulose substrates">nanocellulose substrates</option>
+                                
+                                    <option value="uv-vis spectroscopy">uv-vis spectroscopy</option>
+                                
+                                    <option value="layer-by-layer assembly approach">layer-by-layer assembly approach</option>
+                                
+                                    <option value="ice-template freeze-casting">ice-template freeze-casting</option>
+                                
+                                    <option value="sepolite nanorods">sepolite nanorods</option>
+                                
+                                    <option value="engineered spider silk">engineered spider silk</option>
+                                
+                                    <option value="bharat gwalani">bharat gwalani</option>
+                                
+                                    <option value="compressive yield strength">compressive yield strength</option>
+                                
+                                    <option value="collagen submicrofibers">collagen submicrofibers</option>
+                                
+                                    <option value="elastic resistors">elastic resistors</option>
+                                
+                                    <option value="elastic solid">elastic solid</option>
+                                
+                                    <option value="elastic thin film">elastic thin film</option>
+                                
+                                    <option value="naturally variable biological systems">naturally variable biological systems</option>
+                                
+                                    <option value="surface forces">surface forces</option>
+                                
+                                    <option value="intra- and intermolecular hydrogen bonding">intra- and intermolecular hydrogen bonding</option>
+                                
+                                    <option value="bivalve">bivalve</option>
+                                
+                                    <option value="stack">stack</option>
+                                
+                                    <option value="gastropod">gastropod</option>
+                                
+                                    <option value="biomechanical experiments">biomechanical experiments</option>
+                                
+                                    <option value="{'node_1': 'draceman magninata'}">{'node_1': 'draceman magninata'}</option>
+                                
+                                    <option value="load">load</option>
+                                
+                                    <option value="subunita">subunita</option>
+                                
+                                    <option value="graphene nanoparticles (gn)">graphene nanoparticles (gn)</option>
+                                
+                                    <option value="data augmentation techniques">data augmentation techniques</option>
+                                
+                                    <option value="input image sizes">input image sizes</option>
+                                
+                                    <option value="original images">original images</option>
+                                
+                                    <option value="training data size">training data size</option>
+                                
+                                    <option value="neobone tissue">neobone tissue</option>
+                                
+                                    <option value="trabecular spacing">trabecular spacing</option>
+                                
+                                    <option value="trabecular thickness">trabecular thickness</option>
+                                
+                                    <option value="original bamboo">original bamboo</option>
+                                
+                                    <option value="traditional metal or bioceramic bone substitutes">traditional metal or bioceramic bone substitutes</option>
+                                
+                                    <option value="bridgeformation">bridgeformation</option>
+                                
+                                    <option value="cracklength">cracklength</option>
+                                
+                                    <option value="state-of-the-art">state-of-the-art</option>
+                                
+                                    <option value="unprecedented">unprecedented</option>
+                                
+                                    <option value="double flow focusing setup">double flow focusing setup</option>
+                                
+                                    <option value="extensional flows">extensional flows</option>
+                                
+                                    <option value="shorter cnfs">shorter cnfs</option>
+                                
+                                    <option value="horsetail">horsetail</option>
+                                
+                                    <option value="cellulose matrix">cellulose matrix</option>
+                                
+                                    <option value="microfiber">microfiber</option>
+                                
+                                    <option value="indentation">indentation</option>
+                                
+                                    <option value="natural impact-resistant polymer composite">natural impact-resistant polymer composite</option>
+                                
+                                    <option value="pultruded carbon fibers">pultruded carbon fibers</option>
+                                
+                                    <option value="gas pycnometry">gas pycnometry</option>
+                                
+                                    <option value="macrofiber volume fraction">macrofiber volume fraction</option>
+                                
+                                    <option value="volume fraction of microfiber">volume fraction of microfiber</option>
+                                
+                                    <option value="shear-dominated debonding">shear-dominated debonding</option>
+                                
+                                    <option value="ceramic suspension">ceramic suspension</option>
+                                
+                                    <option value="polymer solution">polymer solution</option>
+                                
+                                    <option value="ideal solid content">ideal solid content</option>
+                                
+                                    <option value="powder agglomerates">powder agglomerates</option>
+                                
+                                    <option value="powder content">powder content</option>
+                                
+                                    <option value="reduced graphene oxide (rgo) colloids">reduced graphene oxide (rgo) colloids</option>
+                                
+                                    <option value="supramolecular thermo-reversible bonds">supramolecular thermo-reversible bonds</option>
+                                
+                                    <option value="boron carbide">boron carbide</option>
+                                
+                                    <option value="prey">prey</option>
+                                
+                                    <option value="focused ion beam coupled with scanning electron microscopy (fib-sem)">focused ion beam coupled with scanning electron microscopy (fib-sem)</option>
+                                
+                                    <option value="investigation techniques">investigation techniques</option>
+                                
+                                    <option value="compaction">compaction</option>
+                                
+                                    <option value="compatibility">compatibility</option>
+                                
+                                    <option value="mobile network connectivity">mobile network connectivity</option>
+                                
+                                    <option value="data transfer">data transfer</option>
+                                
+                                    <option value="mobile broadband">mobile broadband</option>
+                                
+                                    <option value="mobile hotspot">mobile hotspot</option>
+                                
+                                    <option value="underlying biological systems">underlying biological systems</option>
+                                
+                                    <option value="acetone gas">acetone gas</option>
+                                
+                                    <option value="diabetes">diabetes</option>
+                                
+                                    <option value="cs/rgo composite">cs/rgo composite</option>
+                                
+                                    <option value="acetone gas sensor">acetone gas sensor</option>
+                                
+                                    <option value="electrochemical biosensors">electrochemical biosensors</option>
+                                
+                                    <option value="fish-scale arrangement">fish-scale arrangement</option>
+                                
+                                    <option value="iop sensors">iop sensors</option>
+                                
+                                    <option value="nature-inspired designs">nature-inspired designs</option>
+                                
+                                    <option value="neurodegenerative disease diagnostic sensor">neurodegenerative disease diagnostic sensor</option>
+                                
+                                    <option value="fish shape">fish shape</option>
+                                
+                                    <option value="wearable biosensor">wearable biosensor</option>
+                                
+                                    <option value="fish-shaped wearable biosensor">fish-shaped wearable biosensor</option>
+                                
+                                    <option value="fish-scale arrangement-based wearable biosensor">fish-scale arrangement-based wearable biosensor</option>
+                                
+                                    <option value="kirigami sculpture">kirigami sculpture</option>
+                                
+                                    <option value="kirigami sculpture-based wearable biosensor">kirigami sculpture-based wearable biosensor</option>
+                                
+                                    <option value="nature-inspired electrochemical biosensors">nature-inspired electrochemical biosensors</option>
+                                
+                                    <option value="regular exercise">regular exercise</option>
+                                
+                                    <option value="hypochlorite bleach treatment">hypochlorite bleach treatment</option>
+                                
+                                    <option value="oxygen functionalization">oxygen functionalization</option>
+                                
+                                    <option value="superhydrophobic behavior">superhydrophobic behavior</option>
+                                
+                                    <option value="hacat cells">hacat cells</option>
+                                
+                                    <option value="lactate dehydrogenase (ldh) release">lactate dehydrogenase (ldh) release</option>
+                                
+                                    <option value="simulated wound fluid (swf)">simulated wound fluid (swf)</option>
+                                
+                                    <option value="bioscaffolds">bioscaffolds</option>
+                                
+                                    <option value="orientation of inclusions">orientation of inclusions</option>
+                                
+                                    <option value="elastic bounds">elastic bounds</option>
+                                
+                                    <option value="derived">derived</option>
+                                
+                                    <option value="models">models</option>
+                                
+                                    <option value="predictions">predictions</option>
+                                
+                                    <option value="two different staggering patterns of platelets">two different staggering patterns of platelets</option>
+                                
+                                    <option value="shell- and honeycomb-like structures">shell- and honeycomb-like structures</option>
+                                
+                                    <option value="ptlm">ptlm</option>
+                                
+                                    <option value="flat">flat</option>
+                                
+                                    <option value="gel-casting">gel-casting</option>
+                                
+                                    <option value="isotropic materials with well-defined porosity">isotropic materials with well-defined porosity</option>
+                                
+                                    <option value="proposed manufacturing platform">proposed manufacturing platform</option>
+                                
+                                    <option value="al/al2o3 composites with hierarchical anisotropic pores">al/al2o3 composites with hierarchical anisotropic pores</option>
+                                
+                                    <option value="al2o3 composites with uniform microscale porosity">al2o3 composites with uniform microscale porosity</option>
+                                
+                                    <option value="foam-like structures">foam-like structures</option>
+                                
+                                    <option value="versatility">versatility</option>
+                                
+                                    <option value="loose or dense connective tissues">loose or dense connective tissues</option>
+                                
+                                    <option value="signaling molecules">signaling molecules</option>
+                                
+                                    <option value="blank group">blank group</option>
+                                
+                                    <option value="higher number">higher number</option>
+                                
+                                    <option value="increased crystallinity">increased crystallinity</option>
+                                
+                                    <option value="osteoblast cells">osteoblast cells</option>
+                                
+                                    <option value="reduced mineral content">reduced mineral content</option>
+                                
+                                    <option value="viral particles">viral particles</option>
+                                
+                                    <option value="chemical synthesis">chemical synthesis</option>
+                                
+                                    <option value="industrial processes">industrial processes</option>
+                                
+                                    <option value="green hydrogen">green hydrogen</option>
+                                
+                                    <option value="traditional fossil fuels">traditional fossil fuels</option>
+                                
+                                    <option value="hydrogen storage tanks">hydrogen storage tanks</option>
+                                
+                                    <option value="transportation systems">transportation systems</option>
+                                
+                                    <option value="low pressures">low pressures</option>
+                                
+                                    <option value="innovative electrolysis technologies">innovative electrolysis technologies</option>
+                                
+                                    <option value="new electrolyte materials">new electrolyte materials</option>
+                                
+                                    <option value="steel production">steel production</option>
+                                
+                                    <option value="flexural behavior">flexural behavior</option>
+                                
+                                    <option value="interlocking design">interlocking design</option>
+                                
+                                    <option value="rigid">rigid</option>
+                                
+                                    <option value="sub-layer">sub-layer</option>
+                                
+                                    <option value="bio-inspired hybrid sandwich tubes">bio-inspired hybrid sandwich tubes</option>
+                                
+                                    <option value="axial compression">axial compression</option>
+                                
+                                    <option value="crushing force efficiency (cfe)">crushing force efficiency (cfe)</option>
+                                
+                                    <option value="app">app</option>
+                                
+                                    <option value="external al tube">external al tube</option>
+                                
+                                    <option value="crushing length">crushing length</option>
+                                
+                                    <option value="mixed concertina and diamond mode">mixed concertina and diamond mode</option>
+                                
+                                    <option value="maximum compressive force (mcf)">maximum compressive force (mcf)</option>
+                                
+                                    <option value="dense region">dense region</option>
+                                
+                                    <option value="progressive folding region">progressive folding region</option>
+                                
+                                    <option value="plastic collapse force (pcf)">plastic collapse force (pcf)</option>
+                                
+                                    <option value="polypropylene (pp) tube">polypropylene (pp) tube</option>
+                                
+                                    <option value="tandem coils">tandem coils</option>
+                                
+                                    <option value="first double tape">first double tape</option>
+                                
+                                    <option value="optimal adhesion angle">optimal adhesion angle</option>
+                                
+                                    <option value="distinct geometric characteristic">distinct geometric characteristic</option>
+                                
+                                    <option value="most previous cnc nanocomposites">most previous cnc nanocomposites</option>
+                                
+                                    <option value="well-defined hierarchical cross-linking dynamics">well-defined hierarchical cross-linking dynamics</option>
+                                
+                                    <option value="biological materials (e.g., crab shells and lobster cuticle)">biological materials (e.g., crab shells and lobster cuticle)</option>
+                                
+                                    <option value="covalently cross-linked">covalently cross-linked</option>
+                                
+                                    <option value="dynamic stick/slip interactions">dynamic stick/slip interactions</option>
+                                
+                                    <option value="stress-induced opening">stress-induced opening</option>
+                                
+                                    <option value="synergetic improvements">synergetic improvements</option>
+                                
+                                    <option value="traditional unordered cnc-based nanocomposites">traditional unordered cnc-based nanocomposites</option>
+                                
+                                    <option value="macro-cracks">macro-cracks</option>
+                                
+                                    <option value="restrained shrinkage">restrained shrinkage</option>
+                                
+                                    <option value="fast">fast</option>
+                                
+                                    <option value="ring test">ring test</option>
+                                
+                                    <option value="innovative use">innovative use</option>
+                                
+                                    <option value="affinity">affinity</option>
+                                
+                                    <option value="rhodamine b">rhodamine b</option>
+                                
+                                    <option value="cracking">cracking</option>
+                                
+                                    <option value="mode γ">mode γ</option>
+                                
+                                    <option value="undesirable side effects">undesirable side effects</option>
+                                
+                                    <option value="aggregation">aggregation</option>
+                                
+                                    <option value="assembly kinetics">assembly kinetics</option>
+                                
+                                    <option value="assembly morphology">assembly morphology</option>
+                                
+                                    <option value="assembly properties">assembly properties</option>
+                                
+                                    <option value="assembly stability">assembly stability</option>
+                                
+                                    <option value="cross orientation">cross orientation</option>
+                                
+                                    <option value="depletion forces">depletion forces</option>
+                                
+                                    <option value="effective surface charge">effective surface charge</option>
+                                
+                                    <option value="electric double layer">electric double layer</option>
+                                
+                                    <option value="electric double layer thickness">electric double layer thickness</option>
+                                
+                                    <option value="interparticle attraction">interparticle attraction</option>
+                                
+                                    <option value="interparticle repulsion">interparticle repulsion</option>
+                                
+                                    <option value="net potential energy">net potential energy</option>
+                                
+                                    <option value="nonspecific hydrophobic forces">nonspecific hydrophobic forces</option>
+                                
+                                    <option value="parallel orientation">parallel orientation</option>
+                                
+                                    <option value="salinity">salinity</option>
+                                
+                                    <option value="dlvo theory">dlvo theory</option>
+                                
+                                    <option value="excluded volume effects">excluded volume effects</option>
+                                
+                                    <option value="long-ranged depletion repulsion">long-ranged depletion repulsion</option>
+                                
+                                    <option value="short-ranged depletion attraction">short-ranged depletion attraction</option>
+                                
+                                    <option value="1-proh">1-proh</option>
+                                
+                                    <option value="keratin lamellae">keratin lamellae</option>
+                                
+                                    <option value="chitin nanofibers with aa grafting">chitin nanofibers with aa grafting</option>
+                                
+                                    <option value="spider silk fibers">spider silk fibers</option>
+                                
+                                    <option value="wearable e-skin sensor">wearable e-skin sensor</option>
+                                
+                                    <option value="elastomeric or plastic substrates">elastomeric or plastic substrates</option>
+                                
+                                    <option value="human skin properties">human skin properties</option>
+                                
+                                    <option value="biodegradable">biodegradable</option>
+                                
+                                    <option value="chemically accessible">chemically accessible</option>
+                                
+                                    <option value="energy-efficient">energy-efficient</option>
+                                
+                                    <option value="sustainable">sustainable</option>
+                                
+                                    <option value="unimaginable functionalities">unimaginable functionalities</option>
+                                
+                                    <option value="low detection limit">low detection limit</option>
+                                
+                                    <option value="spatiotemporal tactile stimuli">spatiotemporal tactile stimuli</option>
+                                
+                                    <option value="diamond-tpms">diamond-tpms</option>
+                                
+                                    <option value="efficient dissipation">efficient dissipation</option>
+                                
+                                    <option value="exceptional stiffness">exceptional stiffness</option>
+                                
+                                    <option value="knobby starfish">knobby starfish</option>
+                                
+                                    <option value="dynamic loads">dynamic loads</option>
+                                
+                                    <option value="crack-tip shielding effect">crack-tip shielding effect</option>
+                                
+                                    <option value="direct shear loading">direct shear loading</option>
+                                
+                                    <option value="displacement">displacement</option>
+                                
+                                    <option value="fiber planes">fiber planes</option>
+                                
+                                    <option value="necking">necking</option>
+                                
+                                    <option value="outer shell">outer shell</option>
+                                
+                                    <option value="protrusions">protrusions</option>
+                                
+                                    <option value="center frequency">center frequency</option>
+                                
+                                    <option value="developmental stage">developmental stage</option>
+                                
+                                    <option value="gene editing techniques">gene editing techniques</option>
+                                
+                                    <option value="grown plants">grown plants</option>
+                                
+                                    <option value="number of resonators">number of resonators</option>
+                                
+                                    <option value="phonon dispersion">phonon dispersion</option>
+                                
+                                    <option value="scalably manufacturable metamaterials">scalably manufacturable metamaterials</option>
+                                
+                                    <option value="handling">handling</option>
+                                
+                                    <option value="cuticle external most layer">cuticle external most layer</option>
+                                
+                                    <option value="cuticle anti-reflection">cuticle anti-reflection</option>
+                                
+                                    <option value="cuticle antibacterial protection">cuticle antibacterial protection</option>
+                                
+                                    <option value="cuticle antifungal protection">cuticle antifungal protection</option>
+                                
+                                    <option value="cuticle defense">cuticle defense</option>
+                                
+                                    <option value="cuticle elongated ridges">cuticle elongated ridges</option>
+                                
+                                    <option value="cuticle hydrophobicity">cuticle hydrophobicity</option>
+                                
+                                    <option value="cuticle matrix cross-linking">cuticle matrix cross-linking</option>
+                                
+                                    <option value="cuticle mechanical functions">cuticle mechanical functions</option>
+                                
+                                    <option value="cuticle miniature 'hair-like' extensions">cuticle miniature 'hair-like' extensions</option>
+                                
+                                    <option value="cuticle self-cleaning">cuticle self-cleaning</option>
+                                
+                                    <option value="cuticle smoothness">cuticle smoothness</option>
+                                
+                                    <option value="cuticle surface roughness">cuticle surface roughness</option>
+                                
+                                    <option value="cuticle various effects">cuticle various effects</option>
+                                
+                                    <option value="cuticle wettability">cuticle wettability</option>
+                                
+                                    <option value="fiber array">fiber array</option>
+                                
+                                    <option value="rotated plywood architecture">rotated plywood architecture</option>
+                                
+                                    <option value="shear stiffness">shear stiffness</option>
+                                
+                                    <option value="marine habitats">marine habitats</option>
+                                
+                                    <option value="protein misfolding">protein misfolding</option>
+                                
+                                    <option value="molecular chaperones">molecular chaperones</option>
+                                
+                                    <option value="proteasome degradation">proteasome degradation</option>
+                                
+                                    <option value="proteasome">proteasome</option>
+                                
+                                    <option value="phosphorus oxide (bpo)">phosphorus oxide (bpo)</option>
+                                
+                                    <option value="self-assembled monolayers (sams)">self-assembled monolayers (sams)</option>
+                                
+                                    <option value="x-ray photoelectron spectroscopy (xps)">x-ray photoelectron spectroscopy (xps)</option>
+                                
+                                    <option value="complex architecture involving fibrous keratin intermediate filaments">complex architecture involving fibrous keratin intermediate filaments</option>
+                                
+                                    <option value="pangolins">pangolins</option>
+                                
+                                    <option value="post-yield regions">post-yield regions</option>
+                                
+                                    <option value="unique adaptation for protection">unique adaptation for protection</option>
+                                
+                                    <option value="c axis">c axis</option>
+                                
+                                    <option value="hydroxyl groups">hydroxyl groups</option>
+                                
+                                    <option value="mirror planes">mirror planes</option>
+                                
+                                    <option value="hydrogen atoms">hydrogen atoms</option>
+                                
+                                    <option value="oxygen atoms">oxygen atoms</option>
+                                
+                                    <option value="mineralization density">mineralization density</option>
+                                
+                                    <option value="pathological processes">pathological processes</option>
+                                
+                                    <option value="strain-rate dependent deformation behavior">strain-rate dependent deformation behavior</option>
+                                
+                                    <option value="direct integration">direct integration</option>
+                                
+                                    <option value="exocutic layer">exocutic layer</option>
+                                
+                                    <option value="torsional rigidity">torsional rigidity</option>
+                                
+                                    <option value="model 7">model 7</option>
+                                
+                                    <option value="vein cross section shape">vein cross section shape</option>
+                                
+                                    <option value="axial splitting fracture">axial splitting fracture</option>
+                                
+                                    <option value="predominant failure mechanism">predominant failure mechanism</option>
+                                
+                                    <option value="carbon fiber composite actuator">carbon fiber composite actuator</option>
+                                
+                                    <option value="carbon nanotube artificial muscle">carbon nanotube artificial muscle</option>
+                                
+                                    <option value="conductive silver nanowire network">conductive silver nanowire network</option>
+                                
+                                    <option value="decreased pore sizes">decreased pore sizes</option>
+                                
+                                    <option value="electrolyte muscle">electrolyte muscle</option>
+                                
+                                    <option value="folding">folding</option>
+                                
+                                    <option value="peptide-based systems">peptide-based systems</option>
+                                
+                                    <option value="heating">heating</option>
+                                
+                                    <option value="radial contraction">radial contraction</option>
+                                
+                                    <option value="shape memory polymer fiber actuator">shape memory polymer fiber actuator</option>
+                                
+                                    <option value="shape memory polymer yarn actuator">shape memory polymer yarn actuator</option>
+                                
+                                    <option value="silver-plated nylon conductive fibers">silver-plated nylon conductive fibers</option>
+                                
+                                    <option value="spiral shape">spiral shape</option>
+                                
+                                    <option value="warps">warps</option>
+                                
+                                    <option value="wefts">wefts</option>
+                                
+                                    <option value="apacous bone with secondary osteons">apacous bone with secondary osteons</option>
+                                
+                                    <option value="fib technique">fib technique</option>
+                                
+                                    <option value="older bone">older bone</option>
+                                
+                                    <option value="crystal size variation">crystal size variation</option>
+                                
+                                    <option value="diagenesis">diagenesis</option>
+                                
+                                    <option value="young sauropod bones">young sauropod bones</option>
+                                
+                                    <option value="samples b">samples b</option>
+                                
+                                    <option value="flat morphology">flat morphology</option>
+                                
+                                    <option value="irregular-shaped particles">irregular-shaped particles</option>
+                                
+                                    <option value="nano-scale particles">nano-scale particles</option>
+                                
+                                    <option value="white and rough appearance">white and rough appearance</option>
+                                
+                                    <option value="mineralization time">mineralization time</option>
+                                
+                                    <option value="calcium content">calcium content</option>
+                                
+                                    <option value="c-shaped structure">c-shaped structure</option>
+                                
+                                    <option value="hetero-steric zipper structures">hetero-steric zipper structures</option>
+                                
+                                    <option value="hydrophobic clustering">hydrophobic clustering</option>
+                                
+                                    <option value="triangular β-helix">triangular β-helix</option>
+                                
+                                    <option value="distinct mechanical behaviors">distinct mechanical behaviors</option>
+                                
+                                    <option value="reversible properties">reversible properties</option>
+                                
+                                    <option value="various factors">various factors</option>
+                                
+                                    <option value="chitin/chitosan">chitin/chitosan</option>
+                                
+                                    <option value="vacuum-filtration">vacuum-filtration</option>
+                                
+                                    <option value="bioactive sulfonated groups">bioactive sulfonated groups</option>
+                                
+                                    <option value="covalent network">covalent network</option>
+                                
+                                    <option value="gel toughness">gel toughness</option>
+                                
+                                    <option value="high strength hydrogels">high strength hydrogels</option>
+                                
+                                    <option value="ionic network">ionic network</option>
+                                
+                                    <option value="load-bearing materials">load-bearing materials</option>
+                                
+                                    <option value="pam">pam</option>
+                                
+                                    <option value="ppy">ppy</option>
+                                
+                                    <option value="arithmetical average roughness">arithmetical average roughness</option>
+                                
+                                    <option value="hornbill beaks">hornbill beaks</option>
+                                
+                                    <option value="porcupine quills">porcupine quills</option>
+                                
+                                    <option value="alpha-protein layer">alpha-protein layer</option>
+                                
+                                    <option value="beta-protein layer">beta-protein layer</option>
+                                
+                                    <option value="closed foam cell">closed foam cell</option>
+                                
+                                    <option value="cortex shell">cortex shell</option>
+                                
+                                    <option value="tapered ends">tapered ends</option>
+                                
+                                    <option value="energy production">energy production</option>
+                                
+                                    <option value="glucose-derived carbon source">glucose-derived carbon source</option>
+                                
+                                    <option value="breathing process">breathing process</option>
+                                
+                                    <option value="cortical bone experimental results">cortical bone experimental results</option>
+                                
+                                    <option value="damage parameter">damage parameter</option>
+                                
+                                    <option value="n-rich carbon fibers">n-rich carbon fibers</option>
+                                
+                                    <option value="specific capacity">specific capacity</option>
+                                
+                                    <option value="cassie model">cassie model</option>
+                                
+                                    <option value="genetically engineered m13 filaments">genetically engineered m13 filaments</option>
+                                
+                                    <option value="crude oil/water separation">crude oil/water separation</option>
+                                
+                                    <option value="remaining lignin and hemicellulose">remaining lignin and hemicellulose</option>
+                                
+                                    <option value="compression yield strength">compression yield strength</option>
+                                
+                                    <option value="dispersed cellulose aerogel">dispersed cellulose aerogel</option>
+                                
+                                    <option value="oil-water mixtures">oil-water mixtures</option>
+                                
+                                    <option value="abundant functional groups">abundant functional groups</option>
+                                
+                                    <option value="liquid-solid separation">liquid-solid separation</option>
+                                
+                                    <option value="multiscale pores">multiscale pores</option>
+                                
+                                    <option value="particle size selection">particle size selection</option>
+                                
+                                    <option value="functional nanomaterials for light-harvesting systems">functional nanomaterials for light-harvesting systems</option>
+                                
+                                    <option value="metallization">metallization</option>
+                                
+                                    <option value="fibrinogen nanofibrils">fibrinogen nanofibrils</option>
+                                
+                                    <option value="gox">gox</option>
+                                
+                                    <option value="bondandangularstretching">bondandangularstretching</option>
+                                
+                                    <option value="initialkinks">initialkinks</option>
+                                
+                                    <option value="molecularrupture">molecularrupture</option>
+                                
+                                    <option value="molecularstretching">molecularstretching</option>
+                                
+                                    <option value="slippulse">slippulse</option>
+                                
+                                    <option value="embedded iron oxide nanoparticles">embedded iron oxide nanoparticles</option>
+                                
+                                    <option value="reducing treatments">reducing treatments</option>
+                                
+                                    <option value="graphene-based materials">graphene-based materials</option>
+                                
+                                    <option value="geometry/loading constants (c)">geometry/loading constants (c)</option>
+                                
+                                    <option value="strong bisulfonic acids">strong bisulfonic acids</option>
+                                
+                                    <option value="alp activity">alp activity</option>
+                                
+                                    <option value="chondrogenic potential">chondrogenic potential</option>
+                                
+                                    <option value="conventional cs hydrogel">conventional cs hydrogel</option>
+                                
+                                    <option value="fast degradation">fast degradation</option>
+                                
+                                    <option value="eha">eha</option>
+                                
+                                    <option value="hbmsc">hbmsc</option>
+                                
+                                    <option value="clebsch">clebsch</option>
+                                
+                                    <option value="theoryforthinrods">theoryforthinrods</option>
+                                
+                                    <option value="continuummechanics">continuummechanics</option>
+                                
+                                    <option value="fixedoriginandorientation">fixedoriginandorientation</option>
+                                
+                                    <option value="independentstressesandstrains">independentstressesandstrains</option>
+                                
+                                    <option value="kirchhoff">kirchhoff</option>
+                                
+                                    <option value="linearelasticsolid">linearelasticsolid</option>
+                                
+                                    <option value="linearstrain">linearstrain</option>
+                                
+                                    <option value="love">love</option>
+                                
+                                    <option value="smalldeformation">smalldeformation</option>
+                                
+                                    <option value="uniformcrosssectionalarea">uniformcrosssectionalarea</option>
+                                
+                                    <option value="materials characterization technique">materials characterization technique</option>
+                                
+                                    <option value="polarized light microscopy (plm)">polarized light microscopy (plm)</option>
+                                
+                                    <option value="density parameter">density parameter</option>
+                                
+                                    <option value="density difference">density difference</option>
+                                
+                                    <option value="temporal changes">temporal changes</option>
+                                
+                                    <option value="schwartz et al.">schwartz et al.</option>
+                                
+                                    <option value="traditional time-lapsed testing information">traditional time-lapsed testing information</option>
+                                
+                                    <option value="biostructures">biostructures</option>
+                                
+                                    <option value="implicitly represented architected materials">implicitly represented architected materials</option>
+                                
+                                    <option value="multi-functional parts">multi-functional parts</option>
+                                
+                                    <option value="orthotropic materials">orthotropic materials</option>
+                                
+                                    <option value="rapid convergence">rapid convergence</option>
+                                
+                                    <option value="fatigue resistance">fatigue resistance</option>
+                                
+                                    <option value="clamping mechanism">clamping mechanism</option>
+                                
+                                    <option value="natural impact velocities">natural impact velocities</option>
+                                
+                                    <option value="human skull">human skull</option>
+                                
+                                    <option value="inertial effects">inertial effects</option>
+                                
+                                    <option value="pomelo">pomelo</option>
+                                
+                                    <option value="low impedance materials">low impedance materials</option>
+                                
+                                    <option value="indenter shape and size">indenter shape and size</option>
+                                
+                                    <option value="leaf vein patterns">leaf vein patterns</option>
+                                
+                                    <option value="membrane stiffness">membrane stiffness</option>
+                                
+                                    <option value="shell elements">shell elements</option>
+                                
+                                    <option value="inverse of full-width-at-half-maximum">inverse of full-width-at-half-maximum</option>
+                                
+                                    <option value="preosteoblastic cells">preosteoblastic cells</option>
+                                
+                                    <option value="cross-al sem images">cross-al sem images</option>
+                                
+                                    <option value="eds elemental analysis">eds elemental analysis</option>
+                                
+                                    <option value="elemental composition">elemental composition</option>
+                                
+                                    <option value="fracture morphologies">fracture morphologies</option>
+                                
+                                    <option value="graphene oxide synthesis">graphene oxide synthesis</option>
+                                
+                                    <option value="macromechanical data">macromechanical data</option>
+                                
+                                    <option value="micromechanical properties">micromechanical properties</option>
+                                
+                                    <option value="nacre preparation">nacre preparation</option>
+                                
+                                    <option value="raman spectra analysis">raman spectra analysis</option>
+                                
+                                    <option value="theoretical methods">theoretical methods</option>
+                                
+                                    <option value="valleys">valleys</option>
+                                
+                                    <option value="electrochemical deposition">electrochemical deposition</option>
+                                
+                                    <option value="ha nanocrystals">ha nanocrystals</option>
+                                
+                                    <option value="hydroxide ions">hydroxide ions</option>
+                                
+                                    <option value="biologically relevant ha nanostructures">biologically relevant ha nanostructures</option>
+                                
+                                    <option value="good osteoblast differentiation">good osteoblast differentiation</option>
+                                
+                                    <option value="substantial bone formation">substantial bone formation</option>
+                                
+                                    <option value="human osteoblast cells (mg63)">human osteoblast cells (mg63)</option>
+                                
+                                    <option value="mg63 cells (attached)">mg63 cells (attached)</option>
+                                
+                                    <option value="field emission scanning electron microscopy (fesem)">field emission scanning electron microscopy (fesem)</option>
+                                
+                                    <option value="aligned cellulose nanofibers">aligned cellulose nanofibers</option>
+                                
+                                    <option value="ability to fully recover">ability to fully recover</option>
+                                
+                                    <option value="clinical procedures">clinical procedures</option>
+                                
+                                    <option value="computer-based instruments">computer-based instruments</option>
+                                
+                                    <option value="contact modulus">contact modulus</option>
+                                
+                                    <option value="dentine">dentine</option>
+                                
+                                    <option value="eye tissue">eye tissue</option>
+                                
+                                    <option value="hierarchical size dependence">hierarchical size dependence</option>
+                                
+                                    <option value="high degree of extensibility">high degree of extensibility</option>
+                                
+                                    <option value="high fluid content">high fluid content</option>
+                                
+                                    <option value="soft biological materials">soft biological materials</option>
+                                
+                                    <option value="spatial variation">spatial variation</option>
+                                
+                                    <option value="traditional engineering materials">traditional engineering materials</option>
+                                
+                                    <option value="elastic-plastic materials">elastic-plastic materials</option>
+                                
+                                    <option value="oliver and pharr approach">oliver and pharr approach</option>
+                                
+                                    <option value="poro-elastic approach">poro-elastic approach</option>
+                                
+                                    <option value="introduced concept">introduced concept</option>
+                                
+                                    <option value="current approaches">current approaches</option>
+                                
+                                    <option value="visco-elastic methods">visco-elastic methods</option>
+                                
+                                    <option value="spherical-tipped indenters">spherical-tipped indenters</option>
+                                
+                                    <option value="surface property gradients">surface property gradients</option>
+                                
+                                    <option value="work hardening">work hardening</option>
+                                
+                                    <option value="active elements">active elements</option>
+                                
+                                    <option value="excimedia dynamics">excimedia dynamics</option>
+                                
+                                    <option value="edge of layer">edge of layer</option>
+                                
+                                    <option value="kink of step">kink of step</option>
+                                
+                                    <option value="interlamellar membrane formation">interlamellar membrane formation</option>
+                                
+                                    <option value="quiescent elements">quiescent elements</option>
+                                
+                                    <option value="refractory period">refractory period</option>
+                                
+                                    <option value="growing edge of nearby layer">growing edge of nearby layer</option>
+                                
+                                    <option value="nucleation site">nucleation site</option>
+                                
+                                    <option value="stimulation">stimulation</option>
+                                
+                                    <option value="experimentally identified proteins">experimentally identified proteins</option>
+                                
+                                    <option value="nacreous layer proteins">nacreous layer proteins</option>
+                                
+                                    <option value="soft robotic arm">soft robotic arm</option>
+                                
+                                    <option value="human adipose-derived stem cells">human adipose-derived stem cells</option>
+                                
+                                    <option value="smooth muscle cells">smooth muscle cells</option>
+                                
+                                    <option value="network mechanics">network mechanics</option>
+                                
+                                    <option value="spread out">spread out</option>
+                                
+                                    <option value="hpfrp">hpfrp</option>
+                                
+                                    <option value="bone-hpfrp">bone-hpfrp</option>
+                                
+                                    <option value="bouligand-hpfrp">bouligand-hpfrp</option>
+                                
+                                    <option value="herringbone-bouligand-hpfrp">herringbone-bouligand-hpfrp</option>
+                                
+                                    <option value="nacre-hpfrp">nacre-hpfrp</option>
+                                
+                                    <option value="plant-hpfrp">plant-hpfrp</option>
+                                
+                                    <option value="shear strains">shear strains</option>
+                                
+                                    <option value="shearing stress">shearing stress</option>
+                                
+                                    <option value="layers">layers</option>
+                                
+                                    <option value="significant waviness">significant waviness</option>
+                                
+                                    <option value="uniform arrangement">uniform arrangement</option>
+                                
+                                    <option value="three-dimensional interlocking structure">three-dimensional interlocking structure</option>
+                                
+                                    <option value="wavy morphology">wavy morphology</option>
+                                
+                                    <option value="sol">sol</option>
+                                
+                                    <option value="sec_s2ds">sec_s2ds</option>
+                                
+                                    <option value="1deg_branching_angle">1deg_branching_angle</option>
+                                
+                                    <option value="2deg_branching_angle">2deg_branching_angle</option>
+                                
+                                    <option value="3d_environment">3d_environment</option>
+                                
+                                    <option value="branch_length">branch_length</option>
+                                
+                                    <option value="low_magnification_images">low_magnification_images</option>
+                                
+                                    <option value="overall_length">overall_length</option>
+                                
+                                    <option value="size_distribution_variations">size_distribution_variations</option>
+                                
+                                    <option value="starfish_like_dendrites">starfish_like_dendrites</option>
+                                
+                                    <option value="stem_length">stem_length</option>
+                                
+                                    <option value="complementary shapes">complementary shapes</option>
+                                
+                                    <option value="earth">earth</option>
+                                
+                                    <option value="sun's radiation">sun's radiation</option>
+                                
+                                    <option value="soft biological tissues">soft biological tissues</option>
+                                
+                                    <option value="dynamic cncs-fe3+ coordination bonds">dynamic cncs-fe3+ coordination bonds</option>
+                                
+                                    <option value="interchain hydrogen bonding">interchain hydrogen bonding</option>
+                                
+                                    <option value="iron (iii) ions (fe3+)">iron (iii) ions (fe3+)</option>
+                                
+                                    <option value="microwave-assisted treatment">microwave-assisted treatment</option>
+                                
+                                    <option value="polyvinylpyrrolidone (pvp)">polyvinylpyrrolidone (pvp)</option>
+                                
+                                    <option value="synergistic soft-hard hierarchical structure">synergistic soft-hard hierarchical structure</option>
+                                
+                                    <option value="watermelons and ramee rear leaves">watermelons and ramee rear leaves</option>
+                                
+                                    <option value="structure of nacre">structure of nacre</option>
+                                
+                                    <option value="hydrophobic antennas">hydrophobic antennas</option>
+                                
+                                    <option value="hydrophobic antimicrobial surfaces">hydrophobic antimicrobial surfaces</option>
+                                
+                                    <option value="metal surface refinements">metal surface refinements</option>
+                                
+                                    <option value="non-medical microfluidics devices">non-medical microfluidics devices</option>
+                                
+                                    <option value="protective coatings">protective coatings</option>
+                                
+                                    <option value="windows">windows</option>
+                                
+                                    <option value="windshields">windshields</option>
+                                
+                                    <option value="wrinkled surface">wrinkled surface</option>
+                                
+                                    <option value="partial tube">partial tube</option>
+                                
+                                    <option value="curls in on itself">curls in on itself</option>
+                                
+                                    <option value="membrane">membrane</option>
+                                
+                                    <option value="quasi-equilibrium state">quasi-equilibrium state</option>
+                                
+                                    <option value="regular pattern">regular pattern</option>
+                                
+                                    <option value="wrinkled shape">wrinkled shape</option>
+                                
+                                    <option value="fast cs2 evaporation">fast cs2 evaporation</option>
+                                
+                                    <option value="hydrogel-forming polymer films">hydrogel-forming polymer films</option>
+                                
+                                    <option value="contact surface area">contact surface area</option>
+                                
+                                    <option value="fibrous zone surface">fibrous zone surface</option>
+                                
+                                    <option value="center-point radius">center-point radius</option>
+                                
+                                    <option value="contact zone">contact zone</option>
+                                
+                                    <option value="fibrous zone">fibrous zone</option>
+                                
+                                    <option value="lamina number">lamina number</option>
+                                
+                                    <option value="natural variation">natural variation</option>
+                                
+                                    <option value="bhushan et al.">bhushan et al.</option>
+                                
+                                    <option value="impact testing">impact testing</option>
+                                
+                                    <option value="rice leaf surfaces">rice leaf surfaces</option>
+                                
+                                    <option value="synthetic rice leaf materials (artificial)">synthetic rice leaf materials (artificial)</option>
+                                
+                                    <option value="fibronectin domains">fibronectin domains</option>
+                                
+                                    <option value="fibronectin fibrils">fibronectin fibrils</option>
+                                
+                                    <option value="fibronectin rods">fibronectin rods</option>
+                                
+                                    <option value="basement membrane">basement membrane</option>
+                                
+                                    <option value="epithelial cells">epithelial cells</option>
+                                
+                                    <option value="laminin chains">laminin chains</option>
+                                
+                                    <option value="low adhesion properties">low adhesion properties</option>
+                                
+                                    <option value="sand abrasion tests">sand abrasion tests</option>
+                                
+                                    <option value="stable contact angle">stable contact angle</option>
+                                
+                                    <option value="stable rolling angle">stable rolling angle</option>
+                                
+                                    <option value="non-knit components">non-knit components</option>
+                                
+                                    <option value="resistive sensing mechanisms">resistive sensing mechanisms</option>
+                                
+                                    <option value="contact change">contact change</option>
+                                
+                                    <option value="covalent organic frameworks (cofs)">covalent organic frameworks (cofs)</option>
+                                
+                                    <option value="metal complexes containing organic ligands">metal complexes containing organic ligands</option>
+                                
+                                    <option value="molecular electronics">molecular electronics</option>
+                                
+                                    <option value="nanoparticle synthesis">nanoparticle synthesis</option>
+                                
+                                    <option value="hydrothermal methods">hydrothermal methods</option>
+                                
+                                    <option value="size control">size control</option>
+                                
+                                    <option value="template-assisted approach">template-assisted approach</option>
+                                
+                                    <option value="hydrated materials">hydrated materials</option>
+                                
+                                    <option value="compensation factor">compensation factor</option>
+                                
+                                    <option value="inhibition of anisotropic growth">inhibition of anisotropic growth</option>
+                                
+                                    <option value="regulation of reaction parameters">regulation of reaction parameters</option>
+                                
+                                    <option value="connectivity">connectivity</option>
+                                
+                                    <option value="deposition time">deposition time</option>
+                                
+                                    <option value="individual cnts">individual cnts</option>
+                                
+                                    <option value="trifluoroacetyl groups">trifluoroacetyl groups</option>
+                                
+                                    <option value="film mechanics">film mechanics</option>
+                                
+                                    <option value="peptide segments">peptide segments</option>
+                                
+                                    <option value="peptide content">peptide content</option>
+                                
+                                    <option value="repeat length">repeat length</option>
+                                
+                                    <option value="evolutionary significance">evolutionary significance</option>
+                                
+                                    <option value="sfb/transregio 141">sfb/transregio 141</option>
+                                
+                                    <option value="normalized sensor values">normalized sensor values</option>
+                                
+                                    <option value="comparability between sensors">comparability between sensors</option>
+                                
+                                    <option value="misinterpretations">misinterpretations</option>
+                                
+                                    <option value="sensor sensitivity">sensor sensitivity</option>
+                                
+                                    <option value="distinct zones">distinct zones</option>
+                                
+                                    <option value="spatially controlled fabrication method">spatially controlled fabrication method</option>
+                                
+                                    <option value="specific spatial geometry requirements">specific spatial geometry requirements</option>
+                                
+                                    <option value="tunable porosity">tunable porosity</option>
+                                
+                                    <option value="stable operation">stable operation</option>
+                                
+                                    <option value="spatial resolution">spatial resolution</option>
+                                
+                                    <option value="lack of toxicity">lack of toxicity</option>
+                                
+                                    <option value="chemical inertness">chemical inertness</option>
+                                
+                                    <option value="have high hardness">have high hardness</option>
+                                
+                                    <option value="medical implants">medical implants</option>
+                                
+                                    <option value="cell membrane">cell membrane</option>
+                                
+                                    <option value="disruption of cellular functions">disruption of cellular functions</option>
+                                
+                                    <option value="c2">c2</option>
+                                
+                                    <option value="df">df</option>
+                                
+                                    <option value="dramatically">dramatically</option>
+                                
+                                    <option value="temp">temp</option>
+                                
+                                    <option value="mpl">mpl</option>
+                                
+                                    <option value="larger scaffolds">larger scaffolds</option>
+                                
+                                    <option value="living cells">living cells</option>
+                                
+                                    <option value="bioengineering applications">bioengineering applications</option>
+                                
+                                    <option value="bending modulus">bending modulus</option>
+                                
+                                    <option value="contact mode imaging">contact mode imaging</option>
+                                
+                                    <option value="force-displacement response">force-displacement response</option>
+                                
+                                    <option value="structural models">structural models</option>
+                                
+                                    <option value="tapping mode imaging">tapping mode imaging</option>
+                                
+                                    <option value="subsent applications">subsent applications</option>
+                                
+                                    <option value="cp-ti">cp-ti</option>
+                                
+                                    <option value="fatigue strength">fatigue strength</option>
+                                
+                                    <option value="osseointegration applications">osseointegration applications</option>
+                                
+                                    <option value="surface mechanical attrition treatment (smat)">surface mechanical attrition treatment (smat)</option>
+                                
+                                    <option value="amides">amides</option>
+                                
+                                    <option value="cyrine">cyrine</option>
+                                
+                                    <option value="cyrine oxides">cyrine oxides</option>
+                                
+                                    <option value="thiols">thiols</option>
+                                
+                                    <option value="hollow copy">hollow copy</option>
+                                
+                                    <option value="negative copy">negative copy</option>
+                                
+                                    <option value="post-treatment">post-treatment</option>
+                                
+                                    <option value="preservation of cellulose nanofiber structure">preservation of cellulose nanofiber structure</option>
+                                
+                                    <option value="sol-gel transition zone">sol-gel transition zone</option>
+                                
+                                    <option value="positive replica">positive replica</option>
+                                
+                                    <option value="wires">wires</option>
+                                
+                                    <option value="derivative thermogravimetry">derivative thermogravimetry</option>
+                                
+                                    <option value="thermogravimetric analysis">thermogravimetric analysis</option>
+                                
+                                    <option value="analyzers">analyzers</option>
+                                
+                                    <option value="crossed polarizers">crossed polarizers</option>
+                                
+                                    <option value="scattering patterns">scattering patterns</option>
+                                
+                                    <option value="data analysis">data analysis</option>
+                                
+                                    <option value="scattering cross-section">scattering cross-section</option>
+                                
+                                    <option value="wide-angle x-ray scattering (waxs)">wide-angle x-ray scattering (waxs)</option>
+                                
+                                    <option value="abi family kinases">abi family kinases</option>
+                                
+                                    <option value="actin filament rearrangement">actin filament rearrangement</option>
+                                
+                                    <option value="actin filament structural arrangement">actin filament structural arrangement</option>
+                                
+                                    <option value="barrier permeability">barrier permeability</option>
+                                
+                                    <option value="cytoskeletal effector proteins">cytoskeletal effector proteins</option>
+                                
+                                    <option value="f-actin filaments">f-actin filaments</option>
+                                
+                                    <option value="form-function relationship">form-function relationship</option>
+                                
+                                    <option value="non-muscle myosin light chain kinase (nmmlck)">non-muscle myosin light chain kinase (nmmlck)</option>
+                                
+                                    <option value="rho family gtpases">rho family gtpases</option>
+                                
+                                    <option value="sphingosine 1-phosphate (s1p)">sphingosine 1-phosphate (s1p)</option>
+                                
+                                    <option value="imatinib">imatinib</option>
+                                
+                                    <option value="network organization">network organization</option>
+                                
+                                    <option value="human pulmonary artery endothelial cells (hpaecs)">human pulmonary artery endothelial cells (hpaecs)</option>
+                                
+                                    <option value="cellular functions">cellular functions</option>
+                                
+                                    <option value="cell stiffness">cell stiffness</option>
+                                
+                                    <option value="cell viscoelasticity">cell viscoelasticity</option>
+                                
+                                    <option value="essential processes">essential processes</option>
+                                
+                                    <option value="physical forces">physical forces</option>
+                                
+                                    <option value="solid state surface tension">solid state surface tension</option>
+                                
+                                    <option value="triple or three-phase line">triple or three-phase line</option>
+                                
+                                    <option value="ligament bridging">ligament bridging</option>
+                                
+                                    <option value="wide microcrack density">wide microcrack density</option>
+                                
+                                    <option value="bmd">bmd</option>
+                                
+                                    <option value="bvf">bvf</option>
+                                
+                                    <option value="host bone tissue">host bone tissue</option>
+                                
+                                    <option value="sf-c scaffolds">sf-c scaffolds</option>
+                                
+                                    <option value="are useful">are useful</option>
+                                
+                                    <option value="can be used">can be used</option>
+                                
+                                    <option value="have been developed">have been developed</option>
+                                
+                                    <option value="micro/nanoscale surface structures">micro/nanoscale surface structures</option>
+                                
+                                    <option value="represent">represent</option>
+                                
+                                    <option value="various methods">various methods</option>
+                                
+                                    <option value="critical mismatch">critical mismatch</option>
+                                
+                                    <option value="sif">sif</option>
+                                
+                                    <option value="lateral mismatch">lateral mismatch</option>
+                                
+                                    <option value="two cracks">two cracks</option>
+                                
+                                    <option value="collinear">collinear</option>
+                                
+                                    <option value="two rigid lines">two rigid lines</option>
+                                
+                                    <option value="inflammation inhibition">inflammation inhibition</option>
+                                
+                                    <option value="self-healing polymers">self-healing polymers</option>
+                                
+                                    <option value="clustering">clustering</option>
+                                
+                                    <option value="artificial systems">artificial systems</option>
+                                
+                                    <option value="complete-linkage distance measurement">complete-linkage distance measurement</option>
+                                
+                                    <option value="hierarchical algorithm">hierarchical algorithm</option>
+                                
+                                    <option value="connected nodes">connected nodes</option>
+                                
+                                    <option value="metric">metric</option>
+                                
+                                    <option value="triangles">triangles</option>
+                                
+                                    <option value="nodes">nodes</option>
+                                
+                                    <option value="breath-self-assembled droplet aggregates">breath-self-assembled droplet aggregates</option>
+                                
+                                    <option value="capillary aggregates">capillary aggregates</option>
+                                
+                                    <option value="electromagnetism">electromagnetism</option>
+                                
+                                    <option value="intermediate phases">intermediate phases</option>
+                                
+                                    <option value="levitating droplet aggregates">levitating droplet aggregates</option>
+                                
+                                    <option value="mixed situation">mixed situation</option>
+                                
+                                    <option value="nuclear forces">nuclear forces</option>
+                                
+                                    <option value="magnetism">magnetism</option>
+                                
+                                    <option value="expression">expression</option>
+                                
+                                    <option value="tends to">tends to</option>
+                                
+                                    <option value="fracture-based coefficient">fracture-based coefficient</option>
+                                
+                                    <option value="relativedirectionoffarfieldtensilestresstoglobalcartesiancoordinateaxis">relativedirectionoffarfieldtensilestresstoglobalcartesiancoordinateaxis</option>
+                                
+                                    <option value="relativepositionsandorientationscorrelatedviatransformation">relativepositionsandorientationscorrelatedviatransformation</option>
+                                
+                                    <option value="rigidityassumption">rigidityassumption</option>
+                                
+                                    <option value="softmatrix">softmatrix</option>
+                                
+                                    <option value="materialtype">materialtype</option>
+                                
+                                    <option value="crystalline region">crystalline region</option>
+                                
+                                    <option value="ripple viscoelastic response">ripple viscoelastic response</option>
+                                
+                                    <option value="β-pleated sheets">β-pleated sheets</option>
+                                
+                                    <option value="frame">frame</option>
+                                
+                                    <option value="lines">lines</option>
+                                
+                                    <option value="complex composites">complex composites</option>
+                                
+                                    <option value="pbs quantum dots">pbs quantum dots</option>
+                                
+                                    <option value="multi-functional loading">multi-functional loading</option>
+                                
+                                    <option value="high charge density">high charge density</option>
+                                
+                                    <option value="monodispersed single crystal nanops">monodispersed single crystal nanops</option>
+                                
+                                    <option value="fragile cell membrane">fragile cell membrane</option>
+                                
+                                    <option value="deflection sensitivity">deflection sensitivity</option>
+                                
+                                    <option value="maximum loads">maximum loads</option>
+                                
+                                    <option value="spring constant">spring constant</option>
+                                
+                                    <option value="cortical bone-like mechanical properties">cortical bone-like mechanical properties</option>
+                                
+                                    <option value="exceptional damage tolerance">exceptional damage tolerance</option>
+                                
+                                    <option value="tissue defects">tissue defects</option>
+                                
+                                    <option value="blend electrospinning solution">blend electrospinning solution</option>
+                                
+                                    <option value="diameter dispersity">diameter dispersity</option>
+                                
+                                    <option value="polymer miscibility">polymer miscibility</option>
+                                
+                                    <option value="conventional periodic structures">conventional periodic structures</option>
+                                
+                                    <option value="wet claw endocuticle">wet claw endocuticle</option>
+                                
+                                    <option value="large protrusions">large protrusions</option>
+                                
+                                    <option value="small protrusions">small protrusions</option>
+                                
+                                    <option value="specimens s3">specimens s3</option>
+                                
+                                    <option value="specimens s4">specimens s4</option>
+                                
+                                    <option value="displacement of charge">displacement of charge</option>
+                                
+                                    <option value="aligned collagen fibrils">aligned collagen fibrils</option>
+                                
+                                    <option value="anisotropic swelling behavior">anisotropic swelling behavior</option>
+                                
+                                    <option value="double network approach">double network approach</option>
+                                
+                                    <option value="facile free injection method">facile free injection method</option>
+                                
+                                    <option value="high stability">high stability</option>
+                                
+                                    <option value="second polymeric network">second polymeric network</option>
+                                
+                                    <option value="slight swelling">slight swelling</option>
+                                
+                                    <option value="traditional animal collagens (csc)">traditional animal collagens (csc)</option>
+                                
+                                    <option value="african tree keratin">african tree keratin</option>
+                                
+                                    <option value="underlying tissue">underlying tissue</option>
+                                
+                                    <option value="ha-(u)g-25%">ha-(u)g-25%</option>
+                                
+                                    <option value="ha-g">ha-g</option>
+                                
+                                    <option value="biodegradation rate">biodegradation rate</option>
+                                
+                                    <option value="ha-ng-25%">ha-ng-25%</option>
+                                
+                                    <option value="silk proteins">silk proteins</option>
+                                
+                                    <option value="stiff bulk silica">stiff bulk silica</option>
+                                
+                                    <option value="flat smooth surface">flat smooth surface</option>
+                                
+                                    <option value="melting traces">melting traces</option>
+                                
+                                    <option value="micro-pit structure">micro-pit structure</option>
+                                
+                                    <option value="nanotube structures">nanotube structures</option>
+                                
+                                    <option value="sharp edges">sharp edges</option>
+                                
+                                    <option value="four hierarchical levels">four hierarchical levels</option>
+                                
+                                    <option value="uniform nanotube structures">uniform nanotube structures</option>
+                                
+                                    <option value="nested s-shaped arcs">nested s-shaped arcs</option>
+                                
+                                    <option value="oblique">oblique</option>
+                                
+                                    <option value="haversian_canal_volume_fraction">haversian_canal_volume_fraction</option>
+                                
+                                    <option value="blood_vessels">blood_vessels</option>
+                                
+                                    <option value="cellular_components">cellular_components</option>
+                                
+                                    <option value="nerves">nerves</option>
+                                
+                                    <option value="advanced vr systems">advanced vr systems</option>
+                                
+                                    <option value="smart glove">smart glove</option>
+                                
+                                    <option value="hierarchical microsized hairy architectures">hierarchical microsized hairy architectures</option>
+                                
+                                    <option value="self-assembled monolayers">self-assembled monolayers</option>
+                                
+                                    <option value="mechanical robustness">mechanical robustness</option>
+                                
+                                    <option value="thinness">thinness</option>
+                                
+                                    <option value="biomolecular coating">biomolecular coating</option>
+                                
+                                    <option value="uniformity">uniformity</option>
+                                
+                                    <option value="cushioning effect">cushioning effect</option>
+                                
+                                    <option value="friction coefficient">friction coefficient</option>
+                                
+                                    <option value="lubricating effect">lubricating effect</option>
+                                
+                                    <option value="uncoated silica sample">uncoated silica sample</option>
+                                
+                                    <option value="pan nanofibers">pan nanofibers</option>
+                                
+                                    <option value="xrd analysis">xrd analysis</option>
+                                
+                                    <option value="acid phosphate content">acid phosphate content</option>
+                                
+                                    <option value="carbonate accumulation">carbonate accumulation</option>
+                                
+                                    <option value="slight increase">slight increase</option>
+                                
+                                    <option value="elevated acid phosphate content">elevated acid phosphate content</option>
+                                
+                                    <option value="gladman et al.">gladman et al.</option>
+                                
+                                    <option value="initial shape">initial shape</option>
+                                
+                                    <option value="axial reflections">axial reflections</option>
+                                
+                                    <option value="stretched wec">stretched wec</option>
+                                
+                                    <option value="bragg peaks">bragg peaks</option>
+                                
+                                    <option value="second order diffraction">second order diffraction</option>
+                                
+                                    <option value="increased contact areas">increased contact areas</option>
+                                
+                                    <option value="intimate interlocking">intimate interlocking</option>
+                                
+                                    <option value="customized methods">customized methods</option>
+                                
+                                    <option value="simple motifs">simple motifs</option>
+                                
+                                    <option value="localized shear bands">localized shear bands</option>
+                                
+                                    <option value="coated yarns">coated yarns</option>
+                                
+                                    <option value="bending sensing">bending sensing</option>
+                                
+                                    <option value="capacitive sensing structures">capacitive sensing structures</option>
+                                
+                                    <option value="cnt/pdms composite sensing fibers">cnt/pdms composite sensing fibers</option>
+                                
+                                    <option value="corespinning processes">corespinning processes</option>
+                                
+                                    <option value="high linearity">high linearity</option>
+                                
+                                    <option value="minimal degradation">minimal degradation</option>
+                                
+                                    <option value="monofilament resistive sensing yarns">monofilament resistive sensing yarns</option>
+                                
+                                    <option value="multiple sub-yarns">multiple sub-yarns</option>
+                                
+                                    <option value="off-the-shelf yarns">off-the-shelf yarns</option>
+                                
+                                    <option value="pre-crosslinked solution">pre-crosslinked solution</option>
+                                
+                                    <option value="pu rubber core">pu rubber core</option>
+                                
+                                    <option value="resistive strain sensors">resistive strain sensors</option>
+                                
+                                    <option value="silicone composite sheath">silicone composite sheath</option>
+                                
+                                    <option value="mesoscutum">mesoscutum</option>
+                                
+                                    <option value="intrinsic toughening mechanism">intrinsic toughening mechanism</option>
+                                
+                                    <option value="ordered layers">ordered layers</option>
+                                
+                                    <option value="uniformly oriented">uniformly oriented</option>
+                                
+                                    <option value="-eight crosslinks">-eight crosslinks</option>
+                                
+                                    <option value="bulky functional groups">bulky functional groups</option>
+                                
+                                    <option value="chain scission">chain scission</option>
+                                
+                                    <option value="intermolecular crosslinking">intermolecular crosslinking</option>
+                                
+                                    <option value="polypropylene oxide">polypropylene oxide</option>
+                                
+                                    <option value="traditional chemical gels">traditional chemical gels</option>
+                                
+                                    <option value="hierarchically structured hydrogels">hierarchically structured hydrogels</option>
+                                
+                                    <option value="interpore connectivity">interpore connectivity</option>
+                                
+                                    <option value="pore wall architecture">pore wall architecture</option>
+                                
+                                    <option value="hard nanoparticles">hard nanoparticles</option>
+                                
+                                    <option value="coordination agents">coordination agents</option>
+                                
+                                    <option value="damage evolution index">damage evolution index</option>
+                                
+                                    <option value="total extent">total extent</option>
+                                
+                                    <option value="early period">early period</option>
+                                
+                                    <option value="horizontal direction">horizontal direction</option>
+                                
+                                    <option value="failure model">failure model</option>
+                                
+                                    <option value="phho et al.'s study">phho et al.'s study</option>
+                                
+                                    <option value="fibrillartougheningmechanism">fibrillartougheningmechanism</option>
+                                
+                                    <option value="localizedfailure">localizedfailure</option>
+                                
+                                    <option value="(εii{fail})">(εii{fail})</option>
+                                
+                                    <option value="(εij{fail})">(εij{fail})</option>
+                                
+                                    <option value="co-annular needle set-up">co-annular needle set-up</option>
+                                
+                                    <option value="careful consideration">careful consideration</option>
+                                
+                                    <option value="sensing applications">sensing applications</option>
+                                
+                                    <option value="mechanical properties (under wet conditions)">mechanical properties (under wet conditions)</option>
+                                
+                                    <option value="temporary scaffolds">temporary scaffolds</option>
+                                
+                                    <option value="functional complexity">functional complexity</option>
+                                
+                                    <option value="mechanical and biological properties">mechanical and biological properties</option>
+                                
+                                    <option value="micro- or nano-scale organization">micro- or nano-scale organization</option>
+                                
+                                    <option value="washing">washing</option>
+                                
+                                    <option value="low electrolyte uptake">low electrolyte uptake</option>
+                                
+                                    <option value="improved electrolyte uptake">improved electrolyte uptake</option>
+                                
+                                    <option value="higher electrolyte uptake compared to">higher electrolyte uptake compared to</option>
+                                
+                                    <option value="aqueous phase">aqueous phase</option>
+                                
+                                    <option value="rsf solution">rsf solution</option>
+                                
+                                    <option value="g-layer">g-layer</option>
+                                
+                                    <option value="microfibril angle">microfibril angle</option>
+                                
+                                    <option value="tension wood fibers">tension wood fibers</option>
+                                
+                                    <option value="compression wood">compression wood</option>
+                                
+                                    <option value="hierarchical papillae structure">hierarchical papillae structure</option>
+                                
+                                    <option value="air pockets">air pockets</option>
+                                
+                                    <option value="specimens s1">specimens s1</option>
+                                
+                                    <option value="specimens s2">specimens s2</option>
+                                
+                                    <option value="agglomerates">agglomerates</option>
+                                
+                                    <option value="obvious dual structures">obvious dual structures</option>
+                                
+                                    <option value="polyurethane (pu)">polyurethane (pu)</option>
+                                
+                                    <option value="microcracking-induced inelasticity toughening">microcracking-induced inelasticity toughening</option>
+                                
+                                    <option value="stress-strain hysteresis">stress-strain hysteresis</option>
+                                
+                                    <option value="long-term relaxation constant">long-term relaxation constant</option>
+                                
+                                    <option value="minor cracking">minor cracking</option>
+                                
+                                    <option value="short-term relaxation constant">short-term relaxation constant</option>
+                                
+                                    <option value="short-term relaxation time">short-term relaxation time</option>
+                                
+                                    <option value="implant integration">implant integration</option>
+                                
+                                    <option value="bar-on and wagner's model">bar-on and wagner's model</option>
+                                
+                                    <option value="fast fourier transform analyses (fft)">fast fourier transform analyses (fft)</option>
+                                
+                                    <option value="ccm">ccm</option>
+                                
+                                    <option value="detailed microstructural information">detailed microstructural information</option>
+                                
+                                    <option value="green's functions">green's functions</option>
+                                
+                                    <option value="semi-analytical approaches">semi-analytical approaches</option>
+                                
+                                    <option value="errors or approximations">errors or approximations</option>
+                                
+                                    <option value="simplifying assumptions about microstructure">simplifying assumptions about microstructure</option>
+                                
+                                    <option value="molten al-si eutectic alloy">molten al-si eutectic alloy</option>
+                                
+                                    <option value="conical mineral profile">conical mineral profile</option>
+                                
+                                    <option value="minimal demineralization">minimal demineralization</option>
+                                
+                                    <option value="hyperparameter optimization and tuning">hyperparameter optimization and tuning</option>
+                                
+                                    <option value="training data">training data</option>
+                                
+                                    <option value="validation data">validation data</option>
+                                
+                                    <option value="single-particle level">single-particle level</option>
+                                
+                                    <option value="vulnerabilities">vulnerabilities</option>
+                                
+                                    <option value="atomically flat surfaces">atomically flat surfaces</option>
+                                
+                                    <option value="porous hybrid scaffolds">porous hybrid scaffolds</option>
+                                
+                                    <option value="infused scaffolds">infused scaffolds</option>
+                                
+                                    <option value="piled scaffolds">piled scaffolds</option>
+                                
+                                    <option value="stiff-ts">stiff-ts</option>
+                                
+                                    <option value="verowhite-polymer">verowhite-polymer</option>
+                                
+                                    <option value="high resolution prints">high resolution prints</option>
+                                
+                                    <option value="hydrogel-based bioresins">hydrogel-based bioresins</option>
+                                
+                                    <option value="low-stiffness hydrogels">low-stiffness hydrogels</option>
+                                
+                                    <option value="highly organized fiber architectures">highly organized fiber architectures</option>
+                                
+                                    <option value="tomographic illumination">tomographic illumination</option>
+                                
+                                    <option value="centimeter-scale structures">centimeter-scale structures</option>
+                                
+                                    <option value="mew constructs">mew constructs</option>
+                                
+                                    <option value="microscale electrowetting (mew) fibers">microscale electrowetting (mew) fibers</option>
+                                
+                                    <option value="bulk_tissue_measurements">bulk_tissue_measurements</option>
+                                
+                                    <option value="calculated_axial_young's_moduli">calculated_axial_young's_moduli</option>
+                                
+                                    <option value="central_to_middle_regions">central_to_middle_regions</option>
+                                
+                                    <option value="euler_buckling">euler_buckling</option>
+                                
+                                    <option value="measured_axial_young's_moduli">measured_axial_young's_moduli</option>
+                                
+                                    <option value="parenchymatous_tissue">parenchymatous_tissue</option>
+                                
+                                    <option value="peripheral_regions">peripheral_regions</option>
+                                
+                                    <option value="tree-like_monocots">tree-like_monocots</option>
+                                
+                                    <option value="voigt_model">voigt_model</option>
+                                
+                                    <option value="experimental setup">experimental setup</option>
+                                
+                                    <option value="fem simulations">fem simulations</option>
+                                
+                                    <option value="flat punch experiments">flat punch experiments</option>
+                                
+                                    <option value="werestudiedusing">werestudiedusing</option>
+                                
+                                    <option value="extraordinary mechanical strength">extraordinary mechanical strength</option>
+                                
+                                    <option value="distributed compressive forces">distributed compressive forces</option>
+                                
+                                    <option value="saint-venant's principle">saint-venant's principle</option>
+                                
+                                    <option value="statically equivalent concentrated loads">statically equivalent concentrated loads</option>
+                                
+                                    <option value="aerenchyma patterns">aerenchyma patterns</option>
+                                
+                                    <option value="basal portion">basal portion</option>
+                                
+                                    <option value="base">base</option>
+                                
+                                    <option value="lodging">lodging</option>
+                                
+                                    <option value="parenchyma">parenchyma</option>
+                                
+                                    <option value="parenchyma tissues">parenchyma tissues</option>
+                                
+                                    <option value="target volume fraction">target volume fraction</option>
+                                
+                                    <option value="water loss prevention">water loss prevention</option>
+                                
+                                    <option value="intermediate ridges">intermediate ridges</option>
+                                
+                                    <option value="enzymatic digestion">enzymatic digestion</option>
+                                
+                                    <option value="sodium hydroxide">sodium hydroxide</option>
+                                
+                                    <option value="larger crystals">larger crystals</option>
+                                
+                                    <option value="reinforcing building blocks">reinforcing building blocks</option>
+                                
+                                    <option value="interfaces or junctions">interfaces or junctions</option>
+                                
+                                    <option value="specialized tissue">specialized tissue</option>
+                                
+                                    <option value="branch-stem junction">branch-stem junction</option>
+                                
+                                    <option value="collapse">collapse</option>
+                                
+                                    <option value="niu and parsapour">niu and parsapour</option>
+                                
+                                    <option value="multi-cell structures">multi-cell structures</option>
+                                
+                                    <option value="1d_2d materials">1d_2d materials</option>
+                                
+                                    <option value="lib anodes">lib anodes</option>
+                                
+                                    <option value="harmonic potentials">harmonic potentials</option>
+                                
+                                    <option value="intermolecular interactions (crosslinking between nanotubes)">intermolecular interactions (crosslinking between nanotubes)</option>
+                                
+                                    <option value="harmonic potential">harmonic potential</option>
+                                
+                                    <option value="pse p interactions">pse p interactions</option>
+                                
+                                    <option value="rotational harmonic spring potential">rotational harmonic spring potential</option>
+                                
+                                    <option value="tensile stiffness">tensile stiffness</option>
+                                
+                                    <option value="hydrogel networks">hydrogel networks</option>
+                                
+                                    <option value="oxidation level">oxidation level</option>
+                                
+                                    <option value="reduced molecular weight">reduced molecular weight</option>
+                                
+                                    <option value="ros">ros</option>
+                                
+                                    <option value="direction penalty">direction penalty</option>
+                                
+                                    <option value="matched features">matched features</option>
+                                
+                                    <option value="graph distance penalty">graph distance penalty</option>
+                                
+                                    <option value="visual verification">visual verification</option>
+                                
+                                    <option value="minimizing direction penalty">minimizing direction penalty</option>
+                                
+                                    <option value="one-to-one correspondence">one-to-one correspondence</option>
+                                
+                                    <option value="flow fields">flow fields</option>
+                                
+                                    <option value="cowin">cowin</option>
+                                
+                                    <option value="galli">galli</option>
+                                
+                                    <option value="hu">hu</option>
+                                
+                                    <option value="lai">lai</option>
+                                
+                                    <option value="mow">mow</option>
+                                
+                                    <option value="oyen">oyen</option>
+                                
+                                    <option value="poro-elastic behavior">poro-elastic behavior</option>
+                                
+                                    <option value="prony series">prony series</option>
+                                
+                                    <option value="force_per_weight">force_per_weight</option>
+                                
+                                    <option value="speed">speed</option>
+                                
+                                    <option value="corticalcells">corticalcells</option>
+                                
+                                    <option value="foamfilledsquaretube">foamfilledsquaretube</option>
+                                
+                                    <option value="septa">septa</option>
+                                
+                                    <option value="wetsamples">wetsamples</option>
+                                
+                                    <option value="collagenous tissue">collagenous tissue</option>
+                                
+                                    <option value="hierarchical toughening mechanisms">hierarchical toughening mechanisms</option>
+                                
+                                    <option value="labeling agent (e.g. tetramethylrhodamin)">labeling agent (e.g. tetramethylrhodamin)</option>
+                                
+                                    <option value="spider silk protein">spider silk protein</option>
+                                
+                                    <option value="pcl fragments">pcl fragments</option>
+                                
+                                    <option value="turbidity">turbidity</option>
+                                
+                                    <option value="compact size">compact size</option>
+                                
+                                    <option value="functional gradation">functional gradation</option>
+                                
+                                    <option value="mathematical functions">mathematical functions</option>
+                                
+                                    <option value="arrangement of distinct topologies">arrangement of distinct topologies</option>
+                                
+                                    <option value="broad spectrum of property space">broad spectrum of property space</option>
+                                
+                                    <option value="distinct materials">distinct materials</option>
+                                
+                                    <option value="energy absorption devices">energy absorption devices</option>
+                                
+                                    <option value="pva_chains">pva_chains</option>
+                                
+                                    <option value="pva_go_nanocomposite_hydrogels">pva_go_nanocomposite_hydrogels</option>
+                                
+                                    <option value="aligned_porous_structures">aligned_porous_structures</option>
+                                
+                                    <option value="higher_e">higher_e</option>
+                                
+                                    <option value="higher_elongation">higher_elongation</option>
+                                
+                                    <option value="higher_sb">higher_sb</option>
+                                
+                                    <option value="j_shaped_stress_strain_curves">j_shaped_stress_strain_curves</option>
+                                
+                                    <option value="thawing">thawing</option>
+                                
+                                    <option value="ultrahigh_water_contents">ultrahigh_water_contents</option>
+                                
+                                    <option value="four_times_higher_pva_concentration">four_times_higher_pva_concentration</option>
+                                
+                                    <option value="pva_molecules">pva_molecules</option>
+                                
+                                    <option value="untreated cuticle">untreated cuticle</option>
+                                
+                                    <option value="electro-pneumatic regulator">electro-pneumatic regulator</option>
+                                
+                                    <option value="four parallel extending pmas">four parallel extending pmas</option>
+                                
+                                    <option value="hyper-redundant degrees of freedom">hyper-redundant degrees of freedom</option>
+                                
+                                    <option value="on/off pneumatic valve">on/off pneumatic valve</option>
+                                
+                                    <option value="peripheral nervous systems">peripheral nervous systems</option>
+                                
+                                    <option value="small brain">small brain</option>
+                                
+                                    <option value="external skeleton">external skeleton</option>
+                                
+                                    <option value="high dexterity">high dexterity</option>
+                                
+                                    <option value="internal skeleton">internal skeleton</option>
+                                
+                                    <option value="longitudinal muscles">longitudinal muscles</option>
+                                
+                                    <option value="muscular arrangement">muscular arrangement</option>
+                                
+                                    <option value="oblique muscles">oblique muscles</option>
+                                
+                                    <option value="radial muscles">radial muscles</option>
+                                
+                                    <option value="soft body structure">soft body structure</option>
+                                
+                                    <option value="stereotyped movements">stereotyped movements</option>
+                                
+                                    <option value="intrinsically nitrogen-doped carbon materials">intrinsically nitrogen-doped carbon materials</option>
+                                
+                                    <option value="electron diffraction">electron diffraction</option>
+                                
+                                    <option value="powder x-ray diffraction">powder x-ray diffraction</option>
+                                
+                                    <option value="compressive stress">compressive stress</option>
+                                
+                                    <option value="energy_dissipation">energy_dissipation</option>
+                                
+                                    <option value="favorable_cycling_performance">favorable_cycling_performance</option>
+                                
+                                    <option value="large compressive strain">large compressive strain</option>
+                                
+                                    <option value="plastic_deformation">plastic_deformation</option>
+                                
+                                    <option value="rapid recovery">rapid recovery</option>
+                                
+                                    <option value="reinforcement_phase_rc">reinforcement_phase_rc</option>
+                                
+                                    <option value="cell culture media supplements">cell culture media supplements</option>
+                                
+                                    <option value="cells loaded within highly calcified nanoscale microenvironments">cells loaded within highly calcified nanoscale microenvironments</option>
+                                
+                                    <option value="collagenous substrates">collagenous substrates</option>
+                                
+                                    <option value="extrafibrillar crystallites">extrafibrillar crystallites</option>
+                                
+                                    <option value="intrafibrillar crystallites">intrafibrillar crystallites</option>
+                                
+                                    <option value="mopn">mopn</option>
+                                
+                                    <option value="native bone biomineralization">native bone biomineralization</option>
+                                
+                                    <option value="uniform well-aligned minerals">uniform well-aligned minerals</option>
+                                
+                                    <option value="enhanced hydrophilicity">enhanced hydrophilicity</option>
+                                
+                                    <option value="greater surface roughness">greater surface roughness</option>
+                                
+                                    <option value="alcohol molecules">alcohol molecules</option>
+                                
+                                    <option value="biological hierarchical structures">biological hierarchical structures</option>
+                                
+                                    <option value="-carboxylic acid group">-carboxylic acid group</option>
+                                
+                                    <option value="ester bonds">ester bonds</option>
+                                
+                                    <option value="esterification">esterification</option>
+                                
+                                    <option value="esters">esters</option>
+                                
+                                    <option value="superconductivity">superconductivity</option>
+                                
+                                    <option value="high-temperature superconductors">high-temperature superconductors</option>
+                                
+                                    <option value="decrease with increasing laponite concentration">decrease with increasing laponite concentration</option>
+                                
+                                    <option value="light chain">light chain</option>
+                                
+                                    <option value="films">films</option>
+                                
+                                    <option value="gum">gum</option>
+                                
+                                    <option value="nitrogen-containing amino acids">nitrogen-containing amino acids</option>
+                                
+                                    <option value="sericin">sericin</option>
+                                
+                                    <option value="threads">threads</option>
+                                
+                                    <option value="pva solution">pva solution</option>
+                                
+                                    <option value="similar macro porosity">similar macro porosity</option>
+                                
+                                    <option value="flexure strength">flexure strength</option>
+                                
+                                    <option value="microstructural architecture">microstructural architecture</option>
+                                
+                                    <option value="anisotropic topography">anisotropic topography</option>
+                                
+                                    <option value="specific biological ecm-like topography">specific biological ecm-like topography</option>
+                                
+                                    <option value="collagen nanofibrillar structure">collagen nanofibrillar structure</option>
+                                
+                                    <option value="osteogenic topography">osteogenic topography</option>
+                                
+                                    <option value="impaired ecm structures">impaired ecm structures</option>
+                                
+                                    <option value="in vitro disease models">in vitro disease models</option>
+                                
+                                    <option value="tissue engineering approaches">tissue engineering approaches</option>
+                                
+                                    <option value="natural biological collagenous materials">natural biological collagenous materials</option>
+                                
+                                    <option value="vertebrae">vertebrae</option>
+                                
+                                    <option value="frent nozzle blockage">frent nozzle blockage</option>
+                                
+                                    <option value="liquid raw materials">liquid raw materials</option>
+                                
+                                    <option value="me">me</option>
+                                
+                                    <option value="powdered materials">powdered materials</option>
+                                
+                                    <option value="ease of use">ease of use</option>
+                                
+                                    <option value="lower costs">lower costs</option>
+                                
+                                    <option value="wider range of materials">wider range of materials</option>
+                                
+                                    <option value="plant cuticles">plant cuticles</option>
+                                
+                                    <option value="shark skin riblets">shark skin riblets</option>
+                                
+                                    <option value="bscrastcinelli virus">bscrastcinelli virus</option>
+                                
+                                    <option value="spongy epithelial supernification">spongy epithelial supernification</option>
+                                
+                                    <option value="alternating deposition">alternating deposition</option>
+                                
+                                    <option value="biomedical luminescent sensing devices">biomedical luminescent sensing devices</option>
+                                
+                                    <option value="chromatophores">chromatophores</option>
+                                
+                                    <option value="colorimetric sensors">colorimetric sensors</option>
+                                
+                                    <option value="flexible optoelectronic devices">flexible optoelectronic devices</option>
+                                
+                                    <option value="intelligent windows">intelligent windows</option>
+                                
+                                    <option value="luminescence sensors">luminescence sensors</option>
+                                
+                                    <option value="strain sensors">strain sensors</option>
+                                
+                                    <option value="biomimetic flow sensors">biomimetic flow sensors</option>
+                                
+                                    <option value="cupula structure">cupula structure</option>
+                                
+                                    <option value="flow sensors">flow sensors</option>
+                                
+                                    <option value="hydrodynamic flow sensations">hydrodynamic flow sensations</option>
+                                
+                                    <option value="mechanosensing hair cells">mechanosensing hair cells</option>
+                                
+                                    <option value="underwater object detection">underwater object detection</option>
+                                
+                                    <option value="catastrophic crack propagation">catastrophic crack propagation</option>
+                                
+                                    <option value="hardening">hardening</option>
+                                
+                                    <option value="ts separation">ts separation</option>
+                                
+                                    <option value="white region">white region</option>
+                                
+                                    <option value="interface openings">interface openings</option>
+                                
+                                    <option value="t sliding">t sliding</option>
+                                
+                                    <option value="calcite lattice structure">calcite lattice structure</option>
+                                
+                                    <option value="gfp">gfp</option>
+                                
+                                    <option value="aragonite polymorphs">aragonite polymorphs</option>
+                                
+                                    <option value="beams">beams</option>
+                                
+                                    <option value="density (ρ)">density (ρ)</option>
+                                
+                                    <option value="elastic modulus (e)">elastic modulus (e)</option>
+                                
+                                    <option value="elastic shape factor (φ_b^e)">elastic shape factor (φ_b^e)</option>
+                                
+                                    <option value="design requirements">design requirements</option>
+                                
+                                    <option value="shape factors">shape factors</option>
+                                
+                                    <option value="failure strength (s_f)">failure strength (s_f)</option>
+                                
+                                    <option value="disk specimens">disk specimens</option>
+                                
+                                    <option value="nb">nb</option>
+                                
+                                    <option value="zr">zr</option>
+                                
+                                    <option value="copper covering">copper covering</option>
+                                
+                                    <option value="medulla of sea urchin spine">medulla of sea urchin spine</option>
+                                
+                                    <option value="milkweed stem">milkweed stem</option>
+                                
+                                    <option value="structures found in nature">structures found in nature</option>
+                                
+                                    <option value="carried out to deform specimen">carried out to deform specimen</option>
+                                
+                                    <option value="permanent structural damage">permanent structural damage</option>
+                                
+                                    <option value="tensile loading">tensile loading</option>
+                                
+                                    <option value="excellent rate performance">excellent rate performance</option>
+                                
+                                    <option value="long cycle life">long cycle life</option>
+                                
+                                    <option value="bricks">bricks</option>
+                                
+                                    <option value="damage dissipation energy density">damage dissipation energy density</option>
+                                
+                                    <option value="elastic fracture toughness">elastic fracture toughness</option>
+                                
+                                    <option value="load-deflection curves">load-deflection curves</option>
+                                
+                                    <option value="small-scale damage zone model">small-scale damage zone model</option>
+                                
+                                    <option value="cs2 solvent">cs2 solvent</option>
+                                
+                                    <option value="hierarchical morphology">hierarchical morphology</option>
+                                
+                                    <option value="microp layer">microp layer</option>
+                                
+                                    <option value="pnipam monomer">pnipam monomer</option>
+                                
+                                    <option value="frequency">frequency</option>
+                                
+                                    <option value="strain-rate sensitivity (natural fibers)">strain-rate sensitivity (natural fibers)</option>
+                                
+                                    <option value="strain-rate sensitivity (synthetic polymers)">strain-rate sensitivity (synthetic polymers)</option>
+                                
+                                    <option value="selective cellularization">selective cellularization</option>
+                                
+                                    <option value="monophasic scaffolds">monophasic scaffolds</option>
+                                
+                                    <option value="sequence">sequence</option>
+                                
+                                    <option value="dna-directed assembly">dna-directed assembly</option>
+                                
+                                    <option value="high energy transfer efficiency">high energy transfer efficiency</option>
+                                
+                                    <option value="high-pressure torsion (hpt)">high-pressure torsion (hpt)</option>
+                                
+                                    <option value="repetitive corrugation">repetitive corrugation</option>
+                                
+                                    <option value="alloys of titanium">alloys of titanium</option>
+                                
+                                    <option value="ti-6al-4v">ti-6al-4v</option>
+                                
+                                    <option value="highereffectivepoissonratio">highereffectivepoissonratio</option>
+                                
+                                    <option value="lesssheardeformation">lesssheardeformation</option>
+                                
+                                    <option value="blast loads">blast loads</option>
+                                
+                                    <option value="blend film">blend film</option>
+                                
+                                    <option value="higher light transmittance">higher light transmittance</option>
+                                
+                                    <option value="lower haze value">lower haze value</option>
+                                
+                                    <option value="lower transparency">lower transparency</option>
+                                
+                                    <option value="bacterial cells">bacterial cells</option>
+                                
+                                    <option value="fluorescence microscope">fluorescence microscope</option>
+                                
+                                    <option value="fluorescent dyes">fluorescent dyes</option>
+                                
+                                    <option value="mean">mean</option>
+                                
+                                    <option value="one-way anova">one-way anova</option>
+                                
+                                    <option value="specific structures or molecules">specific structures or molecules</option>
+                                
+                                    <option value="spectrophotometer">spectrophotometer</option>
+                                
+                                    <option value="standard deviations">standard deviations</option>
+                                
+                                    <option value="ultrasound">ultrasound</option>
+                                
+                                    <option value="visualization">visualization</option>
+                                
+                                    <option value="weekly sampling">weekly sampling</option>
+                                
+                                    <option value="swcnts">swcnts</option>
+                                
+                                    <option value="collagen-mimic cnt bundles">collagen-mimic cnt bundles</option>
+                                
+                                    <option value="softness">softness</option>
+                                
+                                    <option value="hmn 25 structures">hmn 25 structures</option>
+                                
+                                    <option value="hmn 50 structures">hmn 50 structures</option>
+                                
+                                    <option value="nanoscale features">nanoscale features</option>
+                                
+                                    <option value="one-step laser ablation technique">one-step laser ablation technique</option>
+                                
+                                    <option value="periodic microstructures">periodic microstructures</option>
+                                
+                                    <option value="picosecond q-switched laser system">picosecond q-switched laser system</option>
+                                
+                                    <option value="dpd simulation">dpd simulation</option>
+                                
+                                    <option value="de novo silk fibers">de novo silk fibers</option>
+                                
+                                    <option value="silk protein solutions">silk protein solutions</option>
+                                
+                                    <option value="longer chain lengths">longer chain lengths</option>
+                                
+                                    <option value="multiblock copolymers">multiblock copolymers</option>
+                                
+                                    <option value="spinning of silk fibers">spinning of silk fibers</option>
+                                
+                                    <option value="homogeneous polymer solutions">homogeneous polymer solutions</option>
+                                
+                                    <option value="biointegrated circuits">biointegrated circuits</option>
+                                
+                                    <option value="curved surfaces">curved surfaces</option>
+                                
+                                    <option value="claw material">claw material</option>
+                                
+                                    <option value="fang material">fang material</option>
+                                
+                                    <option value="other non-mineralized biological counterparts">other non-mineralized biological counterparts</option>
+                                
+                                    <option value="zn">zn</option>
+                                
+                                    <option value="fully organic biological materials">fully organic biological materials</option>
+                                
+                                    <option value="biomaterial's hardness">biomaterial's hardness</option>
+                                
+                                    <option value="biomaterial's stiffness">biomaterial's stiffness</option>
+                                
+                                    <option value="biomaterial's toughness">biomaterial's toughness</option>
+                                
+                                    <option value="biomechanical functionality">biomechanical functionality</option>
+                                
+                                    <option value="gene expression related to osteogenesis">gene expression related to osteogenesis</option>
+                                
+                                    <option value="hierarchical micro-/nano-structured surfaces">hierarchical micro-/nano-structured surfaces</option>
+                                
+                                    <option value="osteoblast behaviors">osteoblast behaviors</option>
+                                
+                                    <option value="tio2 nanomodules">tio2 nanomodules</option>
+                                
+                                    <option value="titanium microprit architectures">titanium microprit architectures</option>
+                                
+                                    <option value="breakdown potential">breakdown potential</option>
+                                
+                                    <option value="corrosion current density">corrosion current density</option>
+                                
+                                    <option value="local average roughness">local average roughness</option>
+                                
+                                    <option value="open circuit potential">open circuit potential</option>
+                                
+                                    <option value="assembled blocks">assembled blocks</option>
+                                
+                                    <option value="rigid frame">rigid frame</option>
+                                
+                                    <option value="bioinspired approaches">bioinspired approaches</option>
+                                
+                                    <option value="stacked uncut glass">stacked uncut glass</option>
+                                
+                                    <option value="defined geometry">defined geometry</option>
+                                
+                                    <option value="laser-cut sheets">laser-cut sheets</option>
+                                
+                                    <option value="multiple functionalities">multiple functionalities</option>
+                                
+                                    <option value="overall frame">overall frame</option>
+                                
+                                    <option value="twisted arrangement">twisted arrangement</option>
+                                
+                                    <option value="topologically interlocking materials (tims)">topologically interlocking materials (tims)</option>
+                                
+                                    <option value="limited accessibility">limited accessibility</option>
+                                
+                                    <option value="poor resolution below 20 nm">poor resolution below 20 nm</option>
+                                
+                                    <option value="restricted capacity for three-dimensionality">restricted capacity for three-dimensionality</option>
+                                
+                                    <option value="vp printing">vp printing</option>
+                                
+                                    <option value="hierarchical pore distribution">hierarchical pore distribution</option>
+                                
+                                    <option value="hydrogel layers">hydrogel layers</option>
+                                
+                                    <option value="multilayered walls">multilayered walls</option>
+                                
+                                    <option value="subsent regime of stretching">subsent regime of stretching</option>
+                                
+                                    <option value="ilibrium spacing">ilibrium spacing</option>
+                                
+                                    <option value="minimum adhesion energy">minimum adhesion energy</option>
+                                
+                                    <option value="effective_modulus">effective_modulus</option>
+                                
+                                    <option value="continuous layering structure (voigt limit)">continuous layering structure (voigt limit)</option>
+                                
+                                    <option value="dissimilarity">dissimilarity</option>
+                                
+                                    <option value="hierarchical cluster analysis">hierarchical cluster analysis</option>
+                                
+                                    <option value="graph matching algorithm">graph matching algorithm</option>
+                                
+                                    <option value="matched flow fields">matched flow fields</option>
+                                
+                                    <option value="nhf1 cells">nhf1 cells</option>
+                                
+                                    <option value="pre-peak component">pre-peak component</option>
+                                
+                                    <option value="ogive-like structures">ogive-like structures</option>
+                                
+                                    <option value="droplet nucleation">droplet nucleation</option>
+                                
+                                    <option value="chronic diseases">chronic diseases</option>
+                                
+                                    <option value="heart disease">heart disease</option>
+                                
+                                    <option value="stroke">stroke</option>
+                                
+                                    <option value="population fraction">population fraction</option>
+                                
+                                    <option value="csga">csga</option>
+                                
+                                    <option value="amyloid assemblies">amyloid assemblies</option>
+                                
+                                    <option value="an-rich clusters">an-rich clusters</option>
+                                
+                                    <option value="constant modulus">constant modulus</option>
+                                
+                                    <option value="entropic deformation">entropic deformation</option>
+                                
+                                    <option value="repetitiveloading">repetitiveloading</option>
+                                
+                                    <option value="pathogens">pathogens</option>
+                                
+                                    <option value="arf excimer lasers">arf excimer lasers</option>
+                                
+                                    <option value="original synthetic template">original synthetic template</option>
+                                
+                                    <option value="photonic bandgaps">photonic bandgaps</option>
+                                
+                                    <option value="statistics">statistics</option>
+                                
+                                    <option value="hexagonal tablets (ts)">hexagonal tablets (ts)</option>
+                                
+                                    <option value="lower hardening rate">lower hardening rate</option>
+                                
+                                    <option value="sinusoidal surface">sinusoidal surface</option>
+                                
+                                    <option value="overlap">overlap</option>
+                                
+                                    <option value="filler">filler</option>
+                                
+                                    <option value="real microstructure">real microstructure</option>
+                                
+                                    <option value="real waviness">real waviness</option>
+                                
+                                    <option value="key research and development program">key research and development program</option>
+                                
+                                    <option value="bare wounds">bare wounds</option>
+                                
+                                    <option value="collagen deposition">collagen deposition</option>
+                                
+                                    <option value="granulation tissue">granulation tissue</option>
+                                
+                                    <option value="science and technology project">science and technology project</option>
+                                
+                                    <option value="viscoelastic ratio">viscoelastic ratio</option>
+                                
+                                    <option value="viscoelastic response">viscoelastic response</option>
+                                
+                                    <option value="elastomeric materials">elastomeric materials</option>
+                                
+                                    <option value="finite element size">finite element size</option>
+                                
+                                    <option value="coccolithophore">coccolithophore</option>
+                                
+                                    <option value="dry afm observations">dry afm observations</option>
+                                
+                                    <option value="positively charged species">positively charged species</option>
+                                
+                                    <option value="shorter inter-crystallite distance">shorter inter-crystallite distance</option>
+                                
+                                    <option value="internal cracking">internal cracking</option>
+                                
+                                    <option value="cell wall secondary cell wall">cell wall secondary cell wall</option>
+                                
+                                    <option value="intercellular crack">intercellular crack</option>
+                                
+                                    <option value="damage-induced yield strength reduction">damage-induced yield strength reduction</option>
+                                
+                                    <option value="filtration">filtration</option>
+                                
+                                    <option value="hydrogel casting">hydrogel casting</option>
+                                
+                                    <option value="increased interconnectivity of the cell walls">increased interconnectivity of the cell walls</option>
+                                
+                                    <option value="nature of the solvent">nature of the solvent</option>
+                                
+                                    <option value="strut conuration">strut conuration</option>
+                                
+                                    <option value="osteoblast cell growth">osteoblast cell growth</option>
+                                
+                                    <option value="2d microstructure arrays">2d microstructure arrays</option>
+                                
+                                    <option value="3d microstructure arrays">3d microstructure arrays</option>
+                                
+                                    <option value="anisotropic etch profiles">anisotropic etch profiles</option>
+                                
+                                    <option value="ion beam processes">ion beam processes</option>
+                                
+                                    <option value="lamellar-patterned surfaces">lamellar-patterned surfaces</option>
+                                
+                                    <option value="low-reflectivity pyramid-like surfaces">low-reflectivity pyramid-like surfaces</option>
+                                
+                                    <option value="plasma-driven chemical reactions">plasma-driven chemical reactions</option>
+                                
+                                    <option value="higher quality processing">higher quality processing</option>
+                                
+                                    <option value="smaller-scale processing">smaller-scale processing</option>
+                                
+                                    <option value="mesenchymal tissues">mesenchymal tissues</option>
+                                
+                                    <option value="protein production">protein production</option>
+                                
+                                    <option value="rowing">rowing</option>
+                                
+                                    <option value="3d surface reconstruction">3d surface reconstruction</option>
+                                
+                                    <option value="nanostructure formation mechanism">nanostructure formation mechanism</option>
+                                
+                                    <option value="structure fabrication">structure fabrication</option>
+                                
+                                    <option value="meng-di han">meng-di han</option>
+                                
+                                    <option value="mems sensors">mems sensors</option>
+                                
+                                    <option value="nanogenerator">nanogenerator</option>
+                                
+                                    <option value="implantable devices">implantable devices</option>
+                                
+                                    <option value="integrated fabrication technology">integrated fabrication technology</option>
+                                
+                                    <option value="electrochemical potential">electrochemical potential</option>
+                                
+                                    <option value="biogenic silica">biogenic silica</option>
+                                
+                                    <option value="crystal imperfections">crystal imperfections</option>
+                                
+                                    <option value="benefit">benefit</option>
+                                
+                                    <option value="quadratic dependence">quadratic dependence</option>
+                                
+                                    <option value="self-similar two-dimensional lattice structures">self-similar two-dimensional lattice structures</option>
+                                
+                                    <option value="self-similar three-dimensional lattice structures">self-similar three-dimensional lattice structures</option>
+                                
+                                    <option value="slenderness ratios">slenderness ratios</option>
+                                
+                                    <option value="linear dependence">linear dependence</option>
+                                
+                                    <option value="spider spinning dope">spider spinning dope</option>
+                                
+                                    <option value="mandrel velocity">mandrel velocity</option>
+                                
+                                    <option value="keratinases">keratinases</option>
+                                
+                                    <option value="diffusion barrier">diffusion barrier</option>
+                                
+                                    <option value="testudines">testudines</option>
+                                
+                                    <option value="cross-polarized light microscopy">cross-polarized light microscopy</option>
+                                
+                                    <option value="layered 2-d materials">layered 2-d materials</option>
+                                
+                                    <option value="computer-assisted x-y-stage">computer-assisted x-y-stage</option>
+                                
+                                    <option value="direct cell-electrospinning">direct cell-electrospinning</option>
+                                
+                                    <option value="water-based jetting">water-based jetting</option>
+                                
+                                    <option value="collagen (biological-macromolecule)">collagen (biological-macromolecule)</option>
+                                
+                                    <option value="triple helix structure">triple helix structure</option>
+                                
+                                    <option value="exposed positions">exposed positions</option>
+                                
+                                    <option value="osteogenesis imperfecta">osteogenesis imperfecta</option>
+                                
+                                    <option value="nickel ions">nickel ions</option>
+                                
+                                    <option value="conductive substrate">conductive substrate</option>
+                                
+                                    <option value="current density">current density</option>
+                                
+                                    <option value="electroplating solution">electroplating solution</option>
+                                
+                                    <option value="dynamic loading conditions">dynamic loading conditions</option>
+                                
+                                    <option value="sustainable and eco-friendly alternative">sustainable and eco-friendly alternative</option>
+                                
+                                    <option value="ems">ems</option>
+                                
+                                    <option value="structural characteristics">structural characteristics</option>
+                                
+                                    <option value="conventional natural-based hydrogels">conventional natural-based hydrogels</option>
+                                
+                                    <option value="tinyhydroxyapatitecrystals">tinyhydroxyapatitecrystals</option>
+                                
+                                    <option value="oblique cf">oblique cf</option>
+                                
+                                    <option value="wp(1)">wp(1)</option>
+                                
+                                    <option value="wp(2)">wp(2)</option>
+                                
+                                    <option value="attachment edge">attachment edge</option>
+                                
+                                    <option value="length">length</option>
+                                
+                                    <option value="peak stress">peak stress</option>
+                                
+                                    <option value="non-newtonian fluid">non-newtonian fluid</option>
+                                
+                                    <option value="shear thinning">shear thinning</option>
+                                
+                                    <option value="crystallization">crystallization</option>
+                                
+                                    <option value="polymorphic forms">polymorphic forms</option>
+                                
+                                    <option value="texture">texture</option>
+                                
+                                    <option value="high strength_fiber_fabric_modified_hydrogels">high strength_fiber_fabric_modified_hydrogels</option>
+                                
+                                    <option value="high stiffness_fiber_fabric_modified_hydrogels">high stiffness_fiber_fabric_modified_hydrogels</option>
+                                
+                                    <option value="large strain capabilities_fiber_fabric_modified_hydrogels">large strain capabilities_fiber_fabric_modified_hydrogels</option>
+                                
+                                    <option value="overcome_the_challenges_of_poor_adhesion">overcome_the_challenges_of_poor_adhesion</option>
+                                
+                                    <option value="low bending modulus">low bending modulus</option>
+                                
+                                    <option value="mems meshes">mems meshes</option>
+                                
+                                    <option value="griffith crack">griffith crack</option>
+                                
+                                    <option value="stress singularity">stress singularity</option>
+                                
+                                    <option value="uniform stress">uniform stress</option>
+                                
+                                    <option value="precursor solutions">precursor solutions</option>
+                                
+                                    <option value="rf sputtering">rf sputtering</option>
+                                
+                                    <option value="high aa grafting degree">high aa grafting degree</option>
+                                
+                                    <option value="actin density">actin density</option>
+                                
+                                    <option value="structure formation percentage">structure formation percentage</option>
+                                
+                                    <option value="intensity curves">intensity curves</option>
+                                
+                                    <option value="bundle structure">bundle structure</option>
+                                
+                                    <option value="single-stranded fibrin oligomer">single-stranded fibrin oligomer</option>
+                                
+                                    <option value="linker-to-actin molar ratio">linker-to-actin molar ratio</option>
+                                
+                                    <option value="network of ridges">network of ridges</option>
+                                
+                                    <option value="radiate">radiate</option>
+                                
+                                    <option value="small round pits">small round pits</option>
+                                
+                                    <option value="anti-biofouling">anti-biofouling</option>
+                                
+                                    <option value="anti-icing properties">anti-icing properties</option>
+                                
+                                    <option value="drag reduction">drag reduction</option>
+                                
+                                    <option value="ultra-slipping">ultra-slipping</option>
+                                
+                                    <option value="polyacrylate adhesive nanoparticles">polyacrylate adhesive nanoparticles</option>
+                                
+                                    <option value="resultant surface hierarchy">resultant surface hierarchy</option>
+                                
+                                    <option value="lubricant-locking ability">lubricant-locking ability</option>
+                                
+                                    <option value="slippery surface creation">slippery surface creation</option>
+                                
+                                    <option value="substrate-independent procedure">substrate-independent procedure</option>
+                                
+                                    <option value="two-step spraying method">two-step spraying method</option>
+                                
+                                    <option value="spinal fixators">spinal fixators</option>
+                                
+                                    <option value="minimally invasive surgical techniques">minimally invasive surgical techniques</option>
+                                
+                                    <option value="adjacent disc degeneration">adjacent disc degeneration</option>
+                                
+                                    <option value="dislodgement">dislodgement</option>
+                                
+                                    <option value="subsidence">subsidence</option>
+                                
+                                    <option value="spine surgery">spine surgery</option>
+                                
+                                    <option value="bouligand structures (bs)">bouligand structures (bs)</option>
+                                
+                                    <option value="adjacent layers (bs4)">adjacent layers (bs4)</option>
+                                
+                                    <option value="chitin bundles (bs13)">chitin bundles (bs13)</option>
+                                
+                                    <option value="helicoidal architecture (bs5)">helicoidal architecture (bs5)</option>
+                                
+                                    <option value="higher angles to delamination (bs7)">higher angles to delamination (bs7)</option>
+                                
+                                    <option value="honeycomb (bs12)">honeycomb (bs12)</option>
+                                
+                                    <option value="in-plane isotropy (bs3)">in-plane isotropy (bs3)</option>
+                                
+                                    <option value="lamellae or layers resembling plywood (bs2)">lamellae or layers resembling plywood (bs2)</option>
+                                
+                                    <option value="periodic structures (bs10)">periodic structures (bs10)</option>
+                                
+                                    <option value="sheetlike helicoidal layers (bs9)">sheetlike helicoidal layers (bs9)</option>
+                                
+                                    <option value="spheroidal contours (bs11)">spheroidal contours (bs11)</option>
+                                
+                                    <option value="stacked and rotated fibrous microstructures (bs1)">stacked and rotated fibrous microstructures (bs1)</option>
+                                
+                                    <option value="stiffness (bs14)">stiffness (bs14)</option>
+                                
+                                    <option value="topographical motifs (bs8)">topographical motifs (bs8)</option>
+                                
+                                    <option value="twist angle (bs6)">twist angle (bs6)</option>
+                                
+                                    <option value="mantis shrimp (ms)">mantis shrimp (ms)</option>
+                                
+                                    <option value="interface between adjacent tablets">interface between adjacent tablets</option>
+                                
+                                    <option value="progressive locking">progressive locking</option>
+                                
+                                    <option value="spreading of non-linear deformation around cracks and defects">spreading of non-linear deformation around cracks and defects</option>
+                                
+                                    <option value="nacreous structure">nacreous structure</option>
+                                
+                                    <option value="collagen/nano-carbon fibril-like fibers">collagen/nano-carbon fibril-like fibers</option>
+                                
+                                    <option value="mineral evaluation">mineral evaluation</option>
+                                
+                                    <option value="anatomical location">anatomical location</option>
+                                
+                                    <option value="bone species and individuals tested">bone species and individuals tested</option>
+                                
+                                    <option value="condition type">condition type</option>
+                                
+                                    <option value="testing direction">testing direction</option>
+                                
+                                    <option value="testing protocol">testing protocol</option>
+                                
+                                    <option value="dry bone">dry bone</option>
+                                
+                                    <option value="higher elastic modulus">higher elastic modulus</option>
+                                
+                                    <option value="microstructure variability">microstructure variability</option>
+                                
+                                    <option value="mode α">mode α</option>
+                                
+                                    <option value="mode β">mode β</option>
+                                
+                                    <option value="propagation of rupture via mode γ">propagation of rupture via mode γ</option>
+                                
+                                    <option value="protein gel matrix (pg-rich interfibrillar matrix)">protein gel matrix (pg-rich interfibrillar matrix)</option>
+                                
+                                    <option value="frictional shear stress">frictional shear stress</option>
+                                
+                                    <option value="interfacial debonding">interfacial debonding</option>
+                                
+                                    <option value="sliding of the deforming pg-rich interfibrillar matrix over the fibril surface">sliding of the deforming pg-rich interfibrillar matrix over the fibril surface</option>
+                                
+                                    <option value="shear failure">shear failure</option>
+                                
+                                    <option value="high mineral content">high mineral content</option>
+                                
+                                    <option value="plywood structure">plywood structure</option>
+                                
+                                    <option value="lacetkin et al. (2011)">lacetkin et al. (2011)</option>
+                                
+                                    <option value="higher-order curvature strains">higher-order curvature strains</option>
+                                
+                                    <option value="scale effects">scale effects</option>
+                                
+                                    <option value="element free galerkin method (efgm)">element free galerkin method (efgm)</option>
+                                
+                                    <option value="moving least squares approximations (mls)">moving least squares approximations (mls)</option>
+                                
+                                    <option value="closed-cell type pores">closed-cell type pores</option>
+                                
+                                    <option value="testing">testing</option>
+                                
+                                    <option value="chemical dissolution">chemical dissolution</option>
+                                
+                                    <option value="vertebral bone">vertebral bone</option>
+                                
+                                    <option value="mammals">mammals</option>
+                                
+                                    <option value="reptiles">reptiles</option>
+                                
+                                    <option value="ancient civilizations">ancient civilizations</option>
+                                
+                                    <option value="silicon carbide ceramic">silicon carbide ceramic</option>
+                                
+                                    <option value="cuticular folds">cuticular folds</option>
+                                
+                                    <option value="micro- and nanoscale hairs">micro- and nanoscale hairs</option>
+                                
+                                    <option value="nanorodlets">nanorodlets</option>
+                                
+                                    <option value="nanotubules">nanotubules</option>
+                                
+                                    <option value="wax crystals">wax crystals</option>
+                                
+                                    <option value="collagen fibrils (7)">collagen fibrils (7)</option>
+                                
+                                    <option value="_cotoconster submanifolds popov">_cotoconster submanifolds popov</option>
+                                
+                                    <option value="rosa chimeus jacq.">rosa chimeus jacq.</option>
+                                
+                                    <option value="syntax vulgaris l.">syntax vulgaris l.</option>
+                                
+                                    <option value="optimization mechanisms">optimization mechanisms</option>
+                                
+                                    <option value="external fields">external fields</option>
+                                
+                                    <option value="grapheneoxide">grapheneoxide</option>
+                                
+                                    <option value="hybridsystems">hybridsystems</option>
+                                
+                                    <option value="intercellularchemicalsignalingmolecules">intercellularchemicalsignalingmolecules</option>
+                                
+                                    <option value="ironoxide">ironoxide</option>
+                                
+                                    <option value="metabolites">metabolites</option>
+                                
+                                    <option value="programmabledynamicresponses">programmabledynamicresponses</option>
+                                
+                                    <option value="quantumdots">quantumdots</option>
+                                
+                                    <option value="inorganicnanomaterials">inorganicnanomaterials</option>
+                                
+                                    <option value="celltherapies">celltherapies</option>
+                                
+                                    <option value="complexstructures">complexstructures</option>
+                                
+                                    <option value="muscleregeneration">muscleregeneration</option>
+                                
+                                    <option value="nerveregeneration">nerveregeneration</option>
+                                
+                                    <option value="patientdiscomfort">patientdiscomfort</option>
+                                
+                                    <option value="tissuedefects">tissuedefects</option>
+                                
+                                    <option value="tissueengineering">tissueengineering</option>
+                                
+                                    <option value="alpha-chitin matrix">alpha-chitin matrix</option>
+                                
+                                    <option value="chitin-binding proteins">chitin-binding proteins</option>
+                                
+                                    <option value="differences in volume and architecture">differences in volume and architecture</option>
+                                
+                                    <option value="exceptionally hard and stiff biological materials">exceptionally hard and stiff biological materials</option>
+                                
+                                    <option value="ferrihydrite nanocrystals">ferrihydrite nanocrystals</option>
+                                
+                                    <option value="finer fibers">finer fibers</option>
+                                
+                                    <option value="goethite">goethite</option>
+                                
+                                    <option value="iron minerals">iron minerals</option>
+                                
+                                    <option value="lepidocrocite">lepidocrocite</option>
+                                
+                                    <option value="limonite">limonite</option>
+                                
+                                    <option value="magnetite">magnetite</option>
+                                
+                                    <option value="non-iron minerals">non-iron minerals</option>
+                                
+                                    <option value="orientation and density of chitin fibers">orientation and density of chitin fibers</option>
+                                
+                                    <option value="thicker fibres">thicker fibres</option>
+                                
+                                    <option value="partial melting">partial melting</option>
+                                
+                                    <option value="industrial-scale quantities">industrial-scale quantities</option>
+                                
+                                    <option value="polydispersity">polydispersity</option>
+                                
+                                    <option value="purification">purification</option>
+                                
+                                    <option value="self-assembling building blocks">self-assembling building blocks</option>
+                                
+                                    <option value="biocompatibility issues">biocompatibility issues</option>
+                                
+                                    <option value="opportunities for the development of functional structures">opportunities for the development of functional structures</option>
+                                
+                                    <option value="precision production">precision production</option>
+                                
+                                    <option value="organic semiconductors">organic semiconductors</option>
+                                
+                                    <option value="belts">belts</option>
+                                
+                                    <option value="bilayer membranes">bilayer membranes</option>
+                                
+                                    <option value="self-assembling characteristics">self-assembling characteristics</option>
+                                
+                                    <option value="tapes">tapes</option>
+                                
+                                    <option value="unique nanostructure">unique nanostructure</option>
+                                
+                                    <option value="protein self-assembly">protein self-assembly</option>
+                                
+                                    <option value="assembly intermediates">assembly intermediates</option>
+                                
+                                    <option value="throughput capabilities">throughput capabilities</option>
+                                
+                                    <option value="promoting_osteoblastic_differentiation">promoting_osteoblastic_differentiation</option>
+                                
+                                    <option value="alp_gene_expression">alp_gene_expression</option>
+                                
+                                    <option value="recent research">recent research</option>
+                                
+                                    <option value="alumina powder">alumina powder</option>
+                                
+                                    <option value="grinding processes">grinding processes</option>
+                                
+                                    <option value="kelvin probe force microscopy (kpfm)">kelvin probe force microscopy (kpfm)</option>
+                                
+                                    <option value="piezoresponse force microscopy (pfm)">piezoresponse force microscopy (pfm)</option>
+                                
+                                    <option value="oppositely charged walls">oppositely charged walls</option>
+                                
+                                    <option value="small channels or micropores">small channels or micropores</option>
+                                
+                                    <option value="wet bone">wet bone</option>
+                                
+                                    <option value="ultrasonically cleaned">ultrasonically cleaned</option>
+                                
+                                    <option value="friction metamaterials">friction metamaterials</option>
+                                
+                                    <option value="enzymatic host degradation">enzymatic host degradation</option>
+                                
+                                    <option value="mechanical and degradation characteristics">mechanical and degradation characteristics</option>
+                                
+                                    <option value="electron tomograms">electron tomograms</option>
+                                
+                                    <option value="electron tomography">electron tomography</option>
+                                
+                                    <option value="2d projections">2d projections</option>
+                                
+                                    <option value="elliptical motifs">elliptical motifs</option>
+                                
+                                    <option value="electrospun poly(vinylidene fluoride-co-hexafluoropropylene)">electrospun poly(vinylidene fluoride-co-hexafluoropropylene)</option>
+                                
+                                    <option value="high fracture toughness">high fracture toughness</option>
+                                
+                                    <option value="cactus fiber cellular structures">cactus fiber cellular structures</option>
+                                
+                                    <option value="stereolithography (sla) printing modality">stereolithography (sla) printing modality</option>
+                                
+                                    <option value="unsm treatment">unsm treatment</option>
+                                
+                                    <option value="complex enhancements">complex enhancements</option>
+                                
+                                    <option value="diamagnetic medium">diamagnetic medium</option>
+                                
+                                    <option value="magnetic field gradient">magnetic field gradient</option>
+                                
+                                    <option value="magnetic medium">magnetic medium</option>
+                                
+                                    <option value="magnetic particles">magnetic particles</option>
+                                
+                                    <option value="shape memory effects">shape memory effects</option>
+                                
+                                    <option value="basic fibroblast growth factor (bfgf)">basic fibroblast growth factor (bfgf)</option>
+                                
+                                    <option value="hemostatic properties">hemostatic properties</option>
+                                
+                                    <option value="insoluble composites">insoluble composites</option>
+                                
+                                    <option value="large electrochemically active surface areas">large electrochemically active surface areas</option>
+                                
+                                    <option value="vascular endothelial growth factor (vegf)">vascular endothelial growth factor (vegf)</option>
+                                
+                                    <option value="wound healing and repair">wound healing and repair</option>
+                                
+                                    <option value="gls">gls</option>
+                                
+                                    <option value="orthopedic implant design">orthopedic implant design</option>
+                                
+                                    <option value="muscle or ligament forces">muscle or ligament forces</option>
+                                
+                                    <option value="μs">μs</option>
+                                
+                                    <option value="pore location">pore location</option>
+                                
+                                    <option value="carbodiimide-mediated amide coupling">carbodiimide-mediated amide coupling</option>
+                                
+                                    <option value="strengthening effect">strengthening effect</option>
+                                
+                                    <option value="faster">faster</option>
+                                
+                                    <option value="more accurate results">more accurate results</option>
+                                
+                                    <option value="macro-pores">macro-pores</option>
+                                
+                                    <option value="micro-pores">micro-pores</option>
+                                
+                                    <option value="rule of mixtures">rule of mixtures</option>
+                                
+                                    <option value="osteoblast blood vessel regeneration">osteoblast blood vessel regeneration</option>
+                                
+                                    <option value="brittle response">brittle response</option>
+                                
+                                    <option value="wet state">wet state</option>
+                                
+                                    <option value="strain to fracture">strain to fracture</option>
+                                
+                                    <option value="yield strain">yield strain</option>
+                                
+                                    <option value="em1">em1</option>
+                                
+                                    <option value="saf1">saf1</option>
+                                
+                                    <option value="antireflective structures">antireflective structures</option>
+                                
+                                    <option value="hazardous gas adsorption">hazardous gas adsorption</option>
+                                
+                                    <option value="hazardous gas removal capacity">hazardous gas removal capacity</option>
+                                
+                                    <option value="pinna nobilis">pinna nobilis</option>
+                                
+                                    <option value="pseudoplastic damage">pseudoplastic damage</option>
+                                
+                                    <option value="rehydrated state">rehydrated state</option>
+                                
+                                    <option value="45-degree angle">45-degree angle</option>
+                                
+                                    <option value="x-axis">x-axis</option>
+                                
+                                    <option value="ease of production">ease of production</option>
+                                
+                                    <option value="enzyme-mimic catalytic nanomaterials">enzyme-mimic catalytic nanomaterials</option>
+                                
+                                    <option value="long-term storage stability">long-term storage stability</option>
+                                
+                                    <option value="size/component dependent catalytic activity">size/component dependent catalytic activity</option>
+                                
+                                    <option value="superior features">superior features</option>
+                                
+                                    <option value="desired properties">desired properties</option>
+                                
+                                    <option value="blank interior spaces">blank interior spaces</option>
+                                
+                                    <option value="desired substances">desired substances</option>
+                                
+                                    <option value="precise morphologies">precise morphologies</option>
+                                
+                                    <option value="functional nanocomponents">functional nanocomponents</option>
+                                
+                                    <option value="processing">processing</option>
+                                
+                                    <option value="distinguishable states">distinguishable states</option>
+                                
+                                    <option value="electrical signals">electrical signals</option>
+                                
+                                    <option value="protein-based memristors">protein-based memristors</option>
+                                
+                                    <option value="analog features">analog features</option>
+                                
+                                    <option value="digital features">digital features</option>
+                                
+                                    <option value="excellent cycle endurance">excellent cycle endurance</option>
+                                
+                                    <option value="fast switching speed">fast switching speed</option>
+                                
+                                    <option value="hysteresis characteristics">hysteresis characteristics</option>
+                                
+                                    <option value="long retention">long retention</option>
+                                
+                                    <option value="redox potential">redox potential</option>
+                                
+                                    <option value="silk protein-based devices">silk protein-based devices</option>
+                                
+                                    <option value="ultralow power consumption">ultralow power consumption</option>
+                                
+                                    <option value="chain scission energy">chain scission energy</option>
+                                
+                                    <option value="material behavior description">material behavior description</option>
+                                
+                                    <option value="regularization parameter">regularization parameter</option>
+                                
+                                    <option value="alg hydrogel">alg hydrogel</option>
+                                
+                                    <option value="dual-enzyme-loaded multifunctional magnetic hydrogel system">dual-enzyme-loaded multifunctional magnetic hydrogel system</option>
+                                
+                                    <option value="conductive biopolymer hydrogels">conductive biopolymer hydrogels</option>
+                                
+                                    <option value="fe5o4 nanoparticles">fe5o4 nanoparticles</option>
+                                
+                                    <option value="hyaluronic acid">hyaluronic acid</option>
+                                
+                                    <option value="cgds">cgds</option>
+                                
+                                    <option value="arterial remodeling in response to hypertension">arterial remodeling in response to hypertension</option>
+                                
+                                    <option value="effects of elastin degradation on carotid wall mechanics">effects of elastin degradation on carotid wall mechanics</option>
+                                
+                                    <option value="rate dependence">rate dependence</option>
+                                
+                                    <option value="strain energy function">strain energy function</option>
+                                
+                                    <option value="strain stiffening behavior">strain stiffening behavior</option>
+                                
+                                    <option value="elastinous constituents of arteries">elastinous constituents of arteries</option>
+                                
+                                    <option value="exponent (n)">exponent (n)</option>
+                                
+                                    <option value="strain energy function (w)">strain energy function (w)</option>
+                                
+                                    <option value="dynamic vapor sorption apparatus">dynamic vapor sorption apparatus</option>
+                                
+                                    <option value="longitudinal specimens (l)">longitudinal specimens (l)</option>
+                                
+                                    <option value="low relative humidity">low relative humidity</option>
+                                
+                                    <option value="monolayer">monolayer</option>
+                                
+                                    <option value="saturated salt solution method">saturated salt solution method</option>
+                                
+                                    <option value="transverse specimens (t)">transverse specimens (t)</option>
+                                
+                                    <option value="prone_to_failure">prone_to_failure</option>
+                                
+                                    <option value="strong_and_stiff">strong_and_stiff</option>
+                                
+                                    <option value="extraordinary properties">extraordinary properties</option>
+                                
+                                    <option value="fluid-structure interaction processes">fluid-structure interaction processes</option>
+                                
+                                    <option value="functional_gradient_structures_biological">functional_gradient_structures_biological</option>
+                                
+                                    <option value="helicoidal_arrangements">helicoidal_arrangements</option>
+                                
+                                    <option value="impact_resistance">impact_resistance</option>
+                                
+                                    <option value="multi-phase_nature">multi-phase_nature</option>
+                                
+                                    <option value="directly link calculated interfacial energies">directly link calculated interfacial energies</option>
+                                
+                                    <option value="key interfaces">key interfaces</option>
+                                
+                                    <option value="remains a challenge">remains a challenge</option>
+                                
+                                    <option value="tailoring the surface chemistry">tailoring the surface chemistry</option>
+                                
+                                    <option value="the dominant bonding mechanism on the molecular scale">the dominant bonding mechanism on the molecular scale</option>
+                                
+                                    <option value="left-handed chiral ordering">left-handed chiral ordering</option>
+                                
+                                    <option value="(alpha)c regions">(alpha)c regions</option>
+                                
+                                    <option value="truncated constructs">truncated constructs</option>
+                                
+                                    <option value="(gamma)-nodules">(gamma)-nodules</option>
+                                
+                                    <option value="b-nodules">b-nodules</option>
+                                
+                                    <option value="negative interference">negative interference</option>
+                                
+                                    <option value="second order diffraction peak">second order diffraction peak</option>
+                                
+                                    <option value="first order peak">first order peak</option>
+                                
+                                    <option value="zinc ion solution">zinc ion solution</option>
+                                
+                                    <option value="inferioroxidationresistance">inferioroxidationresistance</option>
+                                
+                                    <option value="strengthductilitytradeoff">strengthductilitytradeoff</option>
+                                
+                                    <option value="cell clusters">cell clusters</option>
+                                
+                                    <option value="cellular binding sites">cellular binding sites</option>
+                                
+                                    <option value="hydroxyapatite (ha) nanoparticles">hydroxyapatite (ha) nanoparticles</option>
+                                
+                                    <option value="hydroxyapatite (ha) nanoparticles (laid down)">hydroxyapatite (ha) nanoparticles (laid down)</option>
+                                
+                                    <option value="superior adhesion">superior adhesion</option>
+                                
+                                    <option value="superior bioactivity">superior bioactivity</option>
+                                
+                                    <option value="cell ingrowth">cell ingrowth</option>
+                                
+                                    <option value="titanate nanowires (laid down)">titanate nanowires (laid down)</option>
+                                
+                                    <option value="metabolic activity">metabolic activity</option>
+                                
+                                    <option value="tissue cell ingrowth">tissue cell ingrowth</option>
+                                
+                                    <option value="pristine freeze-thawed pva hydrogels">pristine freeze-thawed pva hydrogels</option>
+                                
+                                    <option value="swelling resistance">swelling resistance</option>
+                                
+                                    <option value="temporal controllability">temporal controllability</option>
+                                
+                                    <option value="adhesive-free mechanical fastening capabilities">adhesive-free mechanical fastening capabilities</option>
+                                
+                                    <option value="multifunctional soft deformation devices">multifunctional soft deformation devices</option>
+                                
+                                    <option value="heterogeneous composite materials">heterogeneous composite materials</option>
+                                
+                                    <option value="local composition regulation">local composition regulation</option>
+                                
+                                    <option value="polar orientation regulation">polar orientation regulation</option>
+                                
+                                    <option value="ridge">ridge</option>
+                                
+                                    <option value="sharp posterior edge">sharp posterior edge</option>
+                                
+                                    <option value="geometric design">geometric design</option>
+                                
+                                    <option value="shrinkage ratio">shrinkage ratio</option>
+                                
+                                    <option value="microporosity density">microporosity density</option>
+                                
+                                    <option value="3d knitting">3d knitting</option>
+                                
+                                    <option value="bulk reduction">bulk reduction</option>
+                                
+                                    <option value="cable routing strategies">cable routing strategies</option>
+                                
+                                    <option value="comfort">comfort</option>
+                                
+                                    <option value="durability testing">durability testing</option>
+                                
+                                    <option value="force distribution">force distribution</option>
+                                
+                                    <option value="force routing">force routing</option>
+                                
+                                    <option value="forces">forces</option>
+                                
+                                    <option value="grasping">grasping</option>
+                                
+                                    <option value="high forces">high forces</option>
+                                
+                                    <option value="high speeds">high speeds</option>
+                                
+                                    <option value="high stiffness materials">high stiffness materials</option>
+                                
+                                    <option value="high tensile stiffness regions">high tensile stiffness regions</option>
+                                
+                                    <option value="larger surface area">larger surface area</option>
+                                
+                                    <option value="locomotion">locomotion</option>
+                                
+                                    <option value="material innovations">material innovations</option>
+                                
+                                    <option value="mechanical properties of the material">mechanical properties of the material</option>
+                                
+                                    <option value="monolithic ile-based cable-driven wearable robots">monolithic ile-based cable-driven wearable robots</option>
+                                
+                                    <option value="more evenly distributed pressure">more evenly distributed pressure</option>
+                                
+                                    <option value="programmed material strategies">programmed material strategies</option>
+                                
+                                    <option value="reaching">reaching</option>
+                                
+                                    <option value="seam strength">seam strength</option>
+                                
+                                    <option value="wearable tasks">wearable tasks</option>
+                                
+                                    <option value="weight reduction">weight reduction</option>
+                                
+                                    <option value="4% paraformaldehyde">4% paraformaldehyde</option>
+                                
+                                    <option value="bilayer-gel">bilayer-gel</option>
+                                
+                                    <option value="blank">blank</option>
+                                
+                                    <option value="cg-gel">cg-gel</option>
+                                
+                                    <option value="cylindrical defects">cylindrical defects</option>
+                                
+                                    <option value="femoral condyle">femoral condyle</option>
+                                
+                                    <option value="knee joint specimens">knee joint specimens</option>
+                                
+                                    <option value="parapatellar longitudinal skin incision">parapatellar longitudinal skin incision</option>
+                                
+                                    <option value="hydrophobic amino acids from zein protein">hydrophobic amino acids from zein protein</option>
+                                
+                                    <option value="pickering emulsions">pickering emulsions</option>
+                                
+                                    <option value="wheat pollen">wheat pollen</option>
+                                
+                                    <option value="pickering emulsion e-z15">pickering emulsion e-z15</option>
+                                
+                                    <option value="calcium deposition">calcium deposition</option>
+                                
+                                    <option value="hap crystal growth">hap crystal growth</option>
+                                
+                                    <option value="trapezoidal cohesive law with hardening">trapezoidal cohesive law with hardening</option>
+                                
+                                    <option value="additive">additive</option>
+                                
+                                    <option value="desirable properties">desirable properties</option>
+                                
+                                    <option value="thicker coating">thicker coating</option>
+                                
+                                    <option value="type of metal">type of metal</option>
+                                
+                                    <option value="excessive current densities">excessive current densities</option>
+                                
+                                    <option value="pitting">pitting</option>
+                                
+                                    <option value="composite insulators">composite insulators</option>
+                                
+                                    <option value="superhydrophobic coatings">superhydrophobic coatings</option>
+                                
+                                    <option value="3d cad structures">3d cad structures</option>
+                                
+                                    <option value="conclusion">conclusion</option>
+                                
+                                    <option value="inspire">inspire</option>
+                                
+                                    <option value="microdevice development">microdevice development</option>
+                                
+                                    <option value="netfabb">netfabb</option>
+                                
+                                    <option value="topological optimization">topological optimization</option>
+                                
+                                    <option value="withins">withins</option>
+                                
+                                    <option value="contraction">contraction</option>
+                                
+                                    <option value="materials genome initiative">materials genome initiative</option>
+                                
+                                    <option value="transverse orientation">transverse orientation</option>
+                                
+                                    <option value="cap content">cap content</option>
+                                
+                                    <option value="higher compressive stiffness">higher compressive stiffness</option>
+                                
+                                    <option value="disintegration">disintegration</option>
+                                
+                                    <option value="enhanced compressive stiffness">enhanced compressive stiffness</option>
+                                
+                                    <option value="enhanced compressive strength">enhanced compressive strength</option>
+                                
+                                    <option value="fibrous threads">fibrous threads</option>
+                                
+                                    <option value="hierarchical crack arrest mechanism">hierarchical crack arrest mechanism</option>
+                                
+                                    <option value="mineralized nmf bundles">mineralized nmf bundles</option>
+                                
+                                    <option value="multiple micrometer-sized cracks">multiple micrometer-sized cracks</option>
+                                
+                                    <option value="nonuniform rupture">nonuniform rupture</option>
+                                
+                                    <option value="ordered amphiphile arrangements">ordered amphiphile arrangements</option>
+                                
+                                    <option value="rapid impact">rapid impact</option>
+                                
+                                    <option value="circular honeycomb">circular honeycomb</option>
+                                
+                                    <option value="larger area compared to other polygons with equal perimeters">larger area compared to other polygons with equal perimeters</option>
+                                
+                                    <option value="light absorption">light absorption</option>
+                                
+                                    <option value="high theoretical buckling stress">high theoretical buckling stress</option>
+                                
+                                    <option value="dense material core">dense material core</option>
+                                
+                                    <option value="stiffened shell substitution">stiffened shell substitution</option>
+                                
+                                    <option value="cutaneous mechanoreceptors">cutaneous mechanoreceptors</option>
+                                
+                                    <option value="abts substrate absorbance">abts substrate absorbance</option>
+                                
+                                    <option value="carbon structures with hierarchical pore arrangements">carbon structures with hierarchical pore arrangements</option>
+                                
+                                    <option value="unique method">unique method</option>
+                                
+                                    <option value="directional carbon deposition">directional carbon deposition</option>
+                                
+                                    <option value="internal filaments">internal filaments</option>
+                                
+                                    <option value="islands">islands</option>
+                                
+                                    <option value="open mesopores">open mesopores</option>
+                                
+                                    <option value="residual porosity">residual porosity</option>
+                                
+                                    <option value="silica bead layer">silica bead layer</option>
+                                
+                                    <option value="silica leaching">silica leaching</option>
+                                
+                                    <option value="carbon surface">carbon surface</option>
+                                
+                                    <option value="carbon structures for fuel cells">carbon structures for fuel cells</option>
+                                
+                                    <option value="cyclic voltammetry">cyclic voltammetry</option>
+                                
+                                    <option value="functionalized surface">functionalized surface</option>
+                                
+                                    <option value="laccase-immobilized graphite electrode biofuel cell">laccase-immobilized graphite electrode biofuel cell</option>
+                                
+                                    <option value="potentiostat">potentiostat</option>
+                                
+                                    <option value="easier immobilization">easier immobilization</option>
+                                
+                                    <option value="favorable orientation">favorable orientation</option>
+                                
+                                    <option value="higher volume fraction">higher volume fraction</option>
+                                
+                                    <option value="graphite powder">graphite powder</option>
+                                
+                                    <option value="same viscosity">same viscosity</option>
+                                
+                                    <option value="wider p size distribution">wider p size distribution</option>
+                                
+                                    <option value="distalexocuticle">distalexocuticle</option>
+                                
+                                    <option value="lower values for ered">lower values for ered</option>
+                                
+                                    <option value="lower values for h">lower values for h</option>
+                                
+                                    <option value="chemical state">chemical state</option>
+                                
+                                    <option value="depth distribution">depth distribution</option>
+                                
+                                    <option value="ha/tcp powders">ha/tcp powders</option>
+                                
+                                    <option value="branched polymers">branched polymers</option>
+                                
+                                    <option value="flame-spraying">flame-spraying</option>
+                                
+                                    <option value="mechanochemical methods">mechanochemical methods</option>
+                                
+                                    <option value="poly(ethylene imine)">poly(ethylene imine)</option>
+                                
+                                    <option value="polyelectrolytes">polyelectrolytes</option>
+                                
+                                    <option value="spray-drying">spray-drying</option>
+                                
+                                    <option value="biocompatible hydrogels">biocompatible hydrogels</option>
+                                
+                                    <option value="degradation rate">degradation rate</option>
+                                
+                                    <option value="fibrin fiber thickness">fibrin fiber thickness</option>
+                                
+                                    <option value="covalently crosslinked pam">covalently crosslinked pam</option>
+                                
+                                    <option value="elastic recovery">elastic recovery</option>
+                                
+                                    <option value="ionically crosslinked gc">ionically crosslinked gc</option>
+                                
+                                    <option value="poly(acrylamide)">poly(acrylamide)</option>
+                                
+                                    <option value="porous microstructure">porous microstructure</option>
+                                
+                                    <option value="varying amounts">varying amounts</option>
+                                
+                                    <option value="apatite formation">apatite formation</option>
+                                
+                            </select>
+                        </div>
+                        <div class="col-2 pb-2">
+                            <button type="button" class="btn btn-primary btn-block" onclick="neighbourhoodHighlight({nodes: []});">Reset Selection</button>
+                        </div>
+                    </div>
+                </div>
+            
+            
+            <div id="mynetwork" class="card-body"></div>
+        </div>
+
+        
+            <div id="loadingBar">
+              <div class="outerBorder">
+                <div id="text">0%</div>
+                <div id="border">
+                  <div id="bar"></div>
+                </div>
+              </div>
+            </div>
+        
+        
+            <div id="config"></div>
+        
+
+        <script type="text/javascript">
+
+              // initialize global variables.
+              var edges;
+              var nodes;
+              var allNodes;
+              var allEdges;
+              var nodeColors;
+              var originalNodes;
+              var network;
+              var container;
+              var options, data;
+              var filter = {
+                  item : '',
+                  property : '',
+                  value : []
+              };
+
+              
+                  new TomSelect("#select-node",{
+                      create: false,
+                      sortField: {
+                          field: "text",
+                          direction: "asc"
+                      }
+                  });
+              
+
+              
+
+              // This method is responsible for drawing the graph, returns the drawn network
+              function drawGraph() {
+                  var container = document.getElementById('mynetwork');
+
+                  
+
+                  // parsing and collecting nodes and edges from the python
+                  nodes = new vis.DataSet([{"group": 1, "id": "abg group", "label": "abg group", "shape": "dot", "size": 2}, {"group": 1, "id": "area of neovascularization", "label": "area of neovascularization", "shape": "dot", "size": 2}, {"group": 1, "id": "osteoclasts", "label": "osteoclasts", "shape": "dot", "size": 9}, {"group": 2, "id": "biological tissues", "label": "biological tissues", "shape": "dot", "size": 17}, {"group": 2, "id": "oct", "label": "oct", "shape": "dot", "size": 3}, {"group": 2, "id": "staggered composite architectures", "label": "staggered composite architectures", "shape": "dot", "size": 1}, {"group": 26, "id": "porous structures", "label": "porous structures", "shape": "dot", "size": 18}, {"group": 45, "id": "elastic properties", "label": "elastic properties", "shape": "dot", "size": 11}, {"group": 2, "id": "poroelastic analysis", "label": "poroelastic analysis", "shape": "dot", "size": 1}, {"group": 61, "id": "small-angle scattering tensor tomography (satt)", "label": "small-angle scattering tensor tomography (satt)", "shape": "dot", "size": 7}, {"group": 2, "id": "monolithic materials", "label": "monolithic materials", "shape": "dot", "size": 2}, {"group": 29, "id": "failure", "label": "failure", "shape": "dot", "size": 26}, {"group": 2, "id": "flaw tolerance", "label": "flaw tolerance", "shape": "dot", "size": 15}, {"group": 2, "id": "hierarchical structure", "label": "hierarchical structure", "shape": "dot", "size": 56}, {"group": 2, "id": "increasing resistance to fracture", "label": "increasing resistance to fracture", "shape": "dot", "size": 1}, {"group": 2, "id": "molecular rupture", "label": "molecular rupture", "shape": "dot", "size": 1}, {"group": 2, "id": "protein unfolding", "label": "protein unfolding", "shape": "dot", "size": 1}, {"group": 2, "id": "sliding of biomolecular assemblies", "label": "sliding of biomolecular assemblies", "shape": "dot", "size": 1}, {"group": 2, "id": "complex hierarchical structures", "label": "complex hierarchical structures", "shape": "dot", "size": 3}, {"group": 22, "id": "nanoscale materials", "label": "nanoscale materials", "shape": "dot", "size": 9}, {"group": 4, "id": "lamellae", "label": "lamellae", "shape": "dot", "size": 22}, {"group": 2, "id": "biopsies", "label": "biopsies", "shape": "dot", "size": 2}, {"group": 2, "id": "clinical applications", "label": "clinical applications", "shape": "dot", "size": 2}, {"group": 3, "id": "bone regeneration", "label": "bone regeneration", "shape": "dot", "size": 18}, {"group": 3, "id": "angiogenesis", "label": "angiogenesis", "shape": "dot", "size": 5}, {"group": 3, "id": "biocompatible scaffolds", "label": "biocompatible scaffolds", "shape": "dot", "size": 1}, {"group": 3, "id": "cellular ingress", "label": "cellular ingress", "shape": "dot", "size": 1}, {"group": 3, "id": "mechanically stable scaffolds", "label": "mechanically stable scaffolds", "shape": "dot", "size": 1}, {"group": 3, "id": "nutrient transport", "label": "nutrient transport", "shape": "dot", "size": 1}, {"group": 52, "id": "additive manufacturing (am)", "label": "additive manufacturing (am)", "shape": "dot", "size": 28}, {"group": 3, "id": "bioactive glass scaffold (bgs)", "label": "bioactive glass scaffold (bgs)", "shape": "dot", "size": 11}, {"group": 6, "id": "biomaterials", "label": "biomaterials", "shape": "dot", "size": 62}, {"group": 6, "id": "regenerative medicine", "label": "regenerative medicine", "shape": "dot", "size": 8}, {"group": 6, "id": "tissue engineering", "label": "tissue engineering", "shape": "dot", "size": 23}, {"group": 3, "id": "smaller pores", "label": "smaller pores", "shape": "dot", "size": 4}, {"group": 1, "id": "autologous bone graft", "label": "autologous bone graft", "shape": "dot", "size": 5}, {"group": 16, "id": "cranial defect region", "label": "cranial defect region", "shape": "dot", "size": 2}, {"group": 3, "id": "scaffold group", "label": "scaffold group", "shape": "dot", "size": 3}, {"group": 3, "id": "scaffold implantation", "label": "scaffold implantation", "shape": "dot", "size": 2}, {"group": 3, "id": "bi-layer scaffold", "label": "bi-layer scaffold", "shape": "dot", "size": 3}, {"group": 9, "id": "ha coatings", "label": "ha coatings", "shape": "dot", "size": 12}, {"group": 3, "id": "polycarbonate scaffolds", "label": "polycarbonate scaffolds", "shape": "dot", "size": 1}, {"group": 4, "id": "calcium ions", "label": "calcium ions", "shape": "dot", "size": 7}, {"group": 6, "id": "neovascularization", "label": "neovascularization", "shape": "dot", "size": 10}, {"group": 4, "id": "adhesive activity (epithelial-like cells)", "label": "adhesive activity (epithelial-like cells)", "shape": "dot", "size": 2}, {"group": 4, "id": "adhesive activity (fibroblasts)", "label": "adhesive activity (fibroblasts)", "shape": "dot", "size": 2}, {"group": 4, "id": "ionic release behavior", "label": "ionic release behavior", "shape": "dot", "size": 7}, {"group": 4, "id": "glycoproteins", "label": "glycoproteins", "shape": "dot", "size": 11}, {"group": 4, "id": "sa", "label": "sa", "shape": "dot", "size": 7}, {"group": 4, "id": "titanate nanowire matrix", "label": "titanate nanowire matrix", "shape": "dot", "size": 8}, {"group": 5, "id": "capillaries", "label": "capillaries", "shape": "dot", "size": 3}, {"group": 5, "id": "vascularization", "label": "vascularization", "shape": "dot", "size": 2}, {"group": 1, "id": "collagen scaffolds", "label": "collagen scaffolds", "shape": "dot", "size": 19}, {"group": 5, "id": "modified collagen scaffold", "label": "modified collagen scaffold", "shape": "dot", "size": 1}, {"group": 3, "id": "growth factor secretion", "label": "growth factor secretion", "shape": "dot", "size": 1}, {"group": 3, "id": "local active ions", "label": "local active ions", "shape": "dot", "size": 1}, {"group": 6, "id": "octa", "label": "octa", "shape": "dot", "size": 6}, {"group": 6, "id": "omag", "label": "omag", "shape": "dot", "size": 1}, {"group": 6, "id": "red blood cells", "label": "red blood cells", "shape": "dot", "size": 2}, {"group": 6, "id": "blood vessels", "label": "blood vessels", "shape": "dot", "size": 5}, {"group": 6, "id": "microangiography images", "label": "microangiography images", "shape": "dot", "size": 1}, {"group": 6, "id": "phosphoric acid", "label": "phosphoric acid", "shape": "dot", "size": 1}, {"group": 6, "id": "core-sheath fibers", "label": "core-sheath fibers", "shape": "dot", "size": 1}, {"group": 3, "id": "scaffold porosity", "label": "scaffold porosity", "shape": "dot", "size": 1}, {"group": 1, "id": "sf-c group", "label": "sf-c group", "shape": "dot", "size": 2}, {"group": 1, "id": "area of new vessels", "label": "area of new vessels", "shape": "dot", "size": 2}, {"group": 1, "id": "sf-mc group", "label": "sf-mc group", "shape": "dot", "size": 3}, {"group": 47, "id": "cnts", "label": "cnts", "shape": "dot", "size": 18}, {"group": 6, "id": "power settings", "label": "power settings", "shape": "dot", "size": 1}, {"group": 6, "id": "surgical procedures", "label": "surgical procedures", "shape": "dot", "size": 1}, {"group": 6, "id": "both groups", "label": "both groups", "shape": "dot", "size": 1}, {"group": 6, "id": "printed scaffolds", "label": "printed scaffolds", "shape": "dot", "size": 7}, {"group": 5, "id": "lotus root-like scaffolds", "label": "lotus root-like scaffolds", "shape": "dot", "size": 3}, {"group": 7, "id": "copolymer", "label": "copolymer", "shape": "dot", "size": 10}, {"group": 7, "id": "cell behavior", "label": "cell behavior", "shape": "dot", "size": 12}, {"group": 9, "id": "cell proliferation", "label": "cell proliferation", "shape": "dot", "size": 26}, {"group": 9, "id": "cell survival", "label": "cell survival", "shape": "dot", "size": 5}, {"group": 7, "id": "cytotoxicity", "label": "cytotoxicity", "shape": "dot", "size": 9}, {"group": 7, "id": "cytotoxicity tests", "label": "cytotoxicity tests", "shape": "dot", "size": 1}, {"group": 7, "id": "fiber thickness", "label": "fiber thickness", "shape": "dot", "size": 1}, {"group": 8, "id": "produced fibrin-based hydrogels", "label": "produced fibrin-based hydrogels", "shape": "dot", "size": 3}, {"group": 7, "id": "fibrinolytic processes", "label": "fibrinolytic processes", "shape": "dot", "size": 1}, {"group": 7, "id": "hydrogel degradation", "label": "hydrogel degradation", "shape": "dot", "size": 1}, {"group": 7, "id": "natural spider silk mimics", "label": "natural spider silk mimics", "shape": "dot", "size": 1}, {"group": 8, "id": "ecm similarity", "label": "ecm similarity", "shape": "dot", "size": 1}, {"group": 8, "id": "reactive amphiphilic copolymers", "label": "reactive amphiphilic copolymers", "shape": "dot", "size": 3}, {"group": 62, "id": "nanocellulose crystals", "label": "nanocellulose crystals", "shape": "dot", "size": 5}, {"group": 49, "id": "confocal microscopy", "label": "confocal microscopy", "shape": "dot", "size": 6}, {"group": 7, "id": "compressed collagen gels", "label": "compressed collagen gels", "shape": "dot", "size": 7}, {"group": 7, "id": "tissue substitute", "label": "tissue substitute", "shape": "dot", "size": 19}, {"group": 1, "id": "biological inputs", "label": "biological inputs", "shape": "dot", "size": 5}, {"group": 64, "id": "mechanical cues", "label": "mechanical cues", "shape": "dot", "size": 3}, {"group": 7, "id": "aligned electrospun fibers", "label": "aligned electrospun fibers", "shape": "dot", "size": 1}, {"group": 7, "id": "soft electrospun fibers", "label": "soft electrospun fibers", "shape": "dot", "size": 1}, {"group": 19, "id": "uvb radiation", "label": "uvb radiation", "shape": "dot", "size": 2}, {"group": 7, "id": "porous p materials", "label": "porous p materials", "shape": "dot", "size": 1}, {"group": 9, "id": "biological wound healing", "label": "biological wound healing", "shape": "dot", "size": 4}, {"group": 19, "id": "defects", "label": "defects", "shape": "dot", "size": 18}, {"group": 9, "id": "biological properties", "label": "biological properties", "shape": "dot", "size": 7}, {"group": 3, "id": "porous architecture", "label": "porous architecture", "shape": "dot", "size": 5}, {"group": 9, "id": "hydroxyapatite (ha) scaffolds with microporosity features created using graphite (ha-g scaffolds)", "label": "hydroxyapatite (ha) scaffolds with microporosity features created using graphite (ha-g scaffolds)", "shape": "dot", "size": 3}, {"group": 3, "id": "multiform tio2 nanocoating", "label": "multiform tio2 nanocoating", "shape": "dot", "size": 7}, {"group": 9, "id": "gelatin", "label": "gelatin", "shape": "dot", "size": 19}, {"group": 9, "id": "aft-pbs", "label": "aft-pbs", "shape": "dot", "size": 2}, {"group": 9, "id": "quantum dots", "label": "quantum dots", "shape": "dot", "size": 9}, {"group": 46, "id": "hydrogels", "label": "hydrogels", "shape": "dot", "size": 100}, {"group": 11, "id": "biomedical materials", "label": "biomedical materials", "shape": "dot", "size": 12}, {"group": 6, "id": "tissue engineering proteins", "label": "tissue engineering proteins", "shape": "dot", "size": 4}, {"group": 9, "id": "wound healing polymers", "label": "wound healing polymers", "shape": "dot", "size": 4}, {"group": 9, "id": "cell-seeded scaffolds", "label": "cell-seeded scaffolds", "shape": "dot", "size": 3}, {"group": 9, "id": "unseeded scaffolds", "label": "unseeded scaffolds", "shape": "dot", "size": 3}, {"group": 6, "id": "biomimetic materials", "label": "biomimetic materials", "shape": "dot", "size": 41}, {"group": 9, "id": "celltiter 96(r)", "label": "celltiter 96(r)", "shape": "dot", "size": 1}, {"group": 9, "id": "mts colorimetric reagent", "label": "mts colorimetric reagent", "shape": "dot", "size": 1}, {"group": 9, "id": "eadf4(c16) hydrogels", "label": "eadf4(c16) hydrogels", "shape": "dot", "size": 2}, {"group": 9, "id": "pcl fibers", "label": "pcl fibers", "shape": "dot", "size": 8}, {"group": 7, "id": "fibronectin", "label": "fibronectin", "shape": "dot", "size": 11}, {"group": 4, "id": "surface topography", "label": "surface topography", "shape": "dot", "size": 13}, {"group": 9, "id": "fibrin hydrogels", "label": "fibrin hydrogels", "shape": "dot", "size": 3}, {"group": 9, "id": "pcl-collagen core-shell nanomaterials", "label": "pcl-collagen core-shell nanomaterials", "shape": "dot", "size": 1}, {"group": 9, "id": "concurrent hybrid printing", "label": "concurrent hybrid printing", "shape": "dot", "size": 2}, {"group": 9, "id": "gel phase", "label": "gel phase", "shape": "dot", "size": 1}, {"group": 9, "id": "3% w/v eadf4(c16) hydrogels", "label": "3% w/v eadf4(c16) hydrogels", "shape": "dot", "size": 2}, {"group": 19, "id": "limitation", "label": "limitation", "shape": "dot", "size": 5}, {"group": 16, "id": "collagen", "label": "collagen", "shape": "dot", "size": 109}, {"group": 7, "id": "collagen-based gels", "label": "collagen-based gels", "shape": "dot", "size": 7}, {"group": 7, "id": "swf extracts", "label": "swf extracts", "shape": "dot", "size": 4}, {"group": 7, "id": "cytotox onet(tm)", "label": "cytotox onet(tm)", "shape": "dot", "size": 1}, {"group": 7, "id": "ldh", "label": "ldh", "shape": "dot", "size": 1}, {"group": 19, "id": "scaffolds", "label": "scaffolds", "shape": "dot", "size": 33}, {"group": 10, "id": "chitin-calcium carbonate composite microstructure", "label": "chitin-calcium carbonate composite microstructure", "shape": "dot", "size": 3}, {"group": 10, "id": "fluorapatite/chitin composites", "label": "fluorapatite/chitin composites", "shape": "dot", "size": 3}, {"group": 10, "id": "chiral structures", "label": "chiral structures", "shape": "dot", "size": 2}, {"group": 10, "id": "honeycomb substructure", "label": "honeycomb substructure", "shape": "dot", "size": 1}, {"group": 11, "id": "chitin", "label": "chitin", "shape": "dot", "size": 40}, {"group": 15, "id": "shells", "label": "shells", "shape": "dot", "size": 9}, {"group": 12, "id": "chitosan", "label": "chitosan", "shape": "dot", "size": 21}, {"group": 53, "id": "nanochitin", "label": "nanochitin", "shape": "dot", "size": 48}, {"group": 22, "id": "exceptional mechanical properties", "label": "exceptional mechanical properties", "shape": "dot", "size": 9}, {"group": 11, "id": "second most abundant polymer on earth", "label": "second most abundant polymer on earth", "shape": "dot", "size": 1}, {"group": 11, "id": "arthropods", "label": "arthropods", "shape": "dot", "size": 1}, {"group": 41, "id": "biodegradable polymer scaffolds", "label": "biodegradable polymer scaffolds", "shape": "dot", "size": 9}, {"group": 11, "id": "amorphous_regions", "label": "amorphous_regions", "shape": "dot", "size": 3}, {"group": 19, "id": "moisture content", "label": "moisture content", "shape": "dot", "size": 6}, {"group": 11, "id": "orientation_of_microfibrils", "label": "orientation_of_microfibrils", "shape": "dot", "size": 3}, {"group": 11, "id": "temperature", "label": "temperature", "shape": "dot", "size": 14}, {"group": 11, "id": "low_solubility", "label": "low_solubility", "shape": "dot", "size": 3}, {"group": 11, "id": "biopolymers", "label": "biopolymers", "shape": "dot", "size": 33}, {"group": 11, "id": "cationic moieties", "label": "cationic moieties", "shape": "dot", "size": 1}, {"group": 11, "id": "nitrogen", "label": "nitrogen", "shape": "dot", "size": 1}, {"group": 21, "id": "bottom-up formation", "label": "bottom-up formation", "shape": "dot", "size": 2}, {"group": 11, "id": "lack of interfaces", "label": "lack of interfaces", "shape": "dot", "size": 1}, {"group": 59, "id": "self-assembly", "label": "self-assembly", "shape": "dot", "size": 81}, {"group": 11, "id": "chitin chains", "label": "chitin chains", "shape": "dot", "size": 2}, {"group": 11, "id": "common synthetic polymers", "label": "common synthetic polymers", "shape": "dot", "size": 1}, {"group": 11, "id": "amorphous region", "label": "amorphous region", "shape": "dot", "size": 2}, {"group": 11, "id": "crystallites", "label": "crystallites", "shape": "dot", "size": 3}, {"group": 35, "id": "fracturetoughness", "label": "fracturetoughness", "shape": "dot", "size": 4}, {"group": 11, "id": "intracircularcanalsystems", "label": "intracircularcanalsystems", "shape": "dot", "size": 1}, {"group": 11, "id": "loadbearingpaths", "label": "loadbearingpaths", "shape": "dot", "size": 1}, {"group": 11, "id": "proteinmolecules", "label": "proteinmolecules", "shape": "dot", "size": 1}, {"group": 19, "id": "strength", "label": "strength", "shape": "dot", "size": 64}, {"group": 19, "id": "toughness", "label": "toughness", "shape": "dot", "size": 56}, {"group": 28, "id": "directionality", "label": "directionality", "shape": "dot", "size": 4}, {"group": 43, "id": "elastic moduli", "label": "elastic moduli", "shape": "dot", "size": 18}, {"group": 19, "id": "acetylation", "label": "acetylation", "shape": "dot", "size": 5}, {"group": 27, "id": "nanofibrils", "label": "nanofibrils", "shape": "dot", "size": 20}, {"group": 11, "id": "protective role", "label": "protective role", "shape": "dot", "size": 1}, {"group": 40, "id": "stability", "label": "stability", "shape": "dot", "size": 8}, {"group": 27, "id": "silk fibroin", "label": "silk fibroin", "shape": "dot", "size": 26}, {"group": 11, "id": "soy protein isolate", "label": "soy protein isolate", "shape": "dot", "size": 1}, {"group": 23, "id": "polylacophora and patellogastropoda teeth", "label": "polylacophora and patellogastropoda teeth", "shape": "dot", "size": 18}, {"group": 27, "id": "cuticle", "label": "cuticle", "shape": "dot", "size": 23}, {"group": 53, "id": "caco3", "label": "caco3", "shape": "dot", "size": 5}, {"group": 12, "id": "cartilage tissue engineering", "label": "cartilage tissue engineering", "shape": "dot", "size": 3}, {"group": 12, "id": "consistent characteristics", "label": "consistent characteristics", "shape": "dot", "size": 1}, {"group": 12, "id": "non-seasonal source of raw material", "label": "non-seasonal source of raw material", "shape": "dot", "size": 1}, {"group": 12, "id": "nsc", "label": "nsc", "shape": "dot", "size": 11}, {"group": 12, "id": "extraordinary stiffness", "label": "extraordinary stiffness", "shape": "dot", "size": 1}, {"group": 25, "id": "fracture toughness", "label": "fracture toughness", "shape": "dot", "size": 24}, {"group": 12, "id": "stinger", "label": "stinger", "shape": "dot", "size": 3}, {"group": 26, "id": "graphene oxide (go)", "label": "graphene oxide (go)", "shape": "dot", "size": 13}, {"group": 12, "id": "nacre-like structure", "label": "nacre-like structure", "shape": "dot", "size": 4}, {"group": 12, "id": "ldhs", "label": "ldhs", "shape": "dot", "size": 5}, {"group": 12, "id": "single-wall cnts or glucose oxidase", "label": "single-wall cnts or glucose oxidase", "shape": "dot", "size": 1}, {"group": 12, "id": "biocompatible composite films", "label": "biocompatible composite films", "shape": "dot", "size": 2}, {"group": 23, "id": "brick", "label": "brick", "shape": "dot", "size": 3}, {"group": 12, "id": "mortar", "label": "mortar", "shape": "dot", "size": 1}, {"group": 19, "id": "mechanical properties", "label": "mechanical properties", "shape": "dot", "size": 159}, {"group": 32, "id": "pva", "label": "pva", "shape": "dot", "size": 12}, {"group": 11, "id": "water solubility", "label": "water solubility", "shape": "dot", "size": 3}, {"group": 12, "id": "nsc/co-zn composite films inspired by nacre", "label": "nsc/co-zn composite films inspired by nacre", "shape": "dot", "size": 8}, {"group": 13, "id": "fluoride ions", "label": "fluoride ions", "shape": "dot", "size": 1}, {"group": 13, "id": "apatite crystals", "label": "apatite crystals", "shape": "dot", "size": 12}, {"group": 14, "id": "hcl", "label": "hcl", "shape": "dot", "size": 4}, {"group": 14, "id": "decalcification", "label": "decalcification", "shape": "dot", "size": 1}, {"group": 14, "id": "procedure a", "label": "procedure a", "shape": "dot", "size": 7}, {"group": 14, "id": "procedure b", "label": "procedure b", "shape": "dot", "size": 7}, {"group": 14, "id": "acid", "label": "acid", "shape": "dot", "size": 6}, {"group": 10, "id": "hydroxyapatite/chitin composites", "label": "hydroxyapatite/chitin composites", "shape": "dot", "size": 1}, {"group": 14, "id": "naoh", "label": "naoh", "shape": "dot", "size": 3}, {"group": 14, "id": "deproteinization", "label": "deproteinization", "shape": "dot", "size": 2}, {"group": 14, "id": "initial protein structure", "label": "initial protein structure", "shape": "dot", "size": 2}, {"group": 14, "id": "alkaline solution", "label": "alkaline solution", "shape": "dot", "size": 1}, {"group": 1, "id": "snow crab shells", "label": "snow crab shells", "shape": "dot", "size": 1}, {"group": 1, "id": "bioceramics", "label": "bioceramics", "shape": "dot", "size": 13}, {"group": 10, "id": "fluorapatite/chitin", "label": "fluorapatite/chitin", "shape": "dot", "size": 1}, {"group": 15, "id": "suture structures", "label": "suture structures", 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crack arrest mechanism", "label": "hierarchical crack arrest mechanism", "shape": "dot", "size": 1}, {"group": 29, "id": "mineralized nmf bundles", "label": "mineralized nmf bundles", "shape": "dot", "size": 1}, {"group": 29, "id": "multiple micrometer-sized cracks", "label": "multiple micrometer-sized cracks", "shape": "dot", "size": 1}, {"group": 29, "id": "nonuniform rupture", "label": "nonuniform rupture", "shape": "dot", "size": 1}, {"group": 29, "id": "ordered amphiphile arrangements", "label": "ordered amphiphile arrangements", "shape": "dot", "size": 1}, {"group": 29, "id": "rapid impact", "label": "rapid impact", "shape": "dot", "size": 1}, {"group": 37, "id": "circular honeycomb", "label": "circular honeycomb", "shape": "dot", "size": 1}, {"group": 37, "id": "larger area compared to other polygons with equal perimeters", "label": "larger area compared to other polygons with equal perimeters", "shape": "dot", "size": 2}, {"group": 37, "id": "light absorption", "label": "light absorption", "shape": "dot", "size": 1}, {"group": 6, "id": "high theoretical buckling stress", "label": "high theoretical buckling stress", "shape": "dot", "size": 1}, {"group": 6, "id": "dense material core", "label": "dense material core", "shape": "dot", "size": 1}, {"group": 6, "id": "stiffened shell substitution", "label": "stiffened shell substitution", "shape": "dot", "size": 1}, {"group": 67, "id": "cutaneous mechanoreceptors", "label": "cutaneous mechanoreceptors", "shape": "dot", "size": 1}, {"group": 11, "id": "abts substrate absorbance", "label": "abts substrate absorbance", "shape": "dot", "size": 1}, {"group": 104, "id": "carbon structures with hierarchical pore arrangements", "label": "carbon structures with hierarchical pore arrangements", "shape": "dot", "size": 8}, {"group": 104, "id": "unique method", "label": "unique method", "shape": "dot", "size": 1}, {"group": 104, "id": "directional carbon deposition", "label": "directional carbon deposition", "shape": "dot", "size": 1}, {"group": 104, "id": "internal filaments", "label": "internal filaments", "shape": "dot", "size": 1}, {"group": 104, "id": "islands", "label": "islands", "shape": "dot", "size": 1}, {"group": 104, "id": "open mesopores", "label": "open mesopores", "shape": "dot", "size": 2}, {"group": 104, "id": "residual porosity", "label": "residual porosity", "shape": "dot", "size": 1}, {"group": 104, "id": "silica bead layer", "label": "silica bead layer", "shape": "dot", "size": 1}, {"group": 104, "id": "silica leaching", "label": "silica leaching", "shape": "dot", "size": 2}, {"group": 11, "id": "carbon surface", "label": "carbon surface", "shape": "dot", "size": 1}, {"group": 11, "id": "carbon structures for fuel cells", "label": "carbon structures for fuel cells", "shape": "dot", "size": 1}, {"group": 11, "id": "cyclic voltammetry", "label": "cyclic voltammetry", "shape": "dot", "size": 1}, {"group": 11, "id": "functionalized surface", "label": "functionalized surface", "shape": "dot", "size": 1}, {"group": 11, "id": "laccase-immobilized graphite electrode biofuel cell", "label": "laccase-immobilized graphite electrode biofuel cell", "shape": "dot", "size": 1}, {"group": 11, "id": "potentiostat", "label": "potentiostat", "shape": "dot", "size": 1}, {"group": 104, "id": "easier immobilization", "label": "easier immobilization", "shape": "dot", "size": 1}, {"group": 104, "id": "favorable orientation", "label": "favorable orientation", "shape": "dot", "size": 1}, {"group": 63, "id": "higher volume fraction", "label": "higher volume fraction", "shape": "dot", "size": 4}, {"group": 63, "id": "graphite powder", "label": "graphite powder", "shape": "dot", "size": 1}, {"group": 63, "id": "same viscosity", "label": "same viscosity", "shape": "dot", "size": 1}, {"group": 63, "id": "wider p size distribution", "label": "wider p size distribution", "shape": "dot", "size": 1}, {"group": 25, "id": "distalexocuticle", "label": "distalexocuticle", "shape": "dot", "size": 3}, {"group": 25, "id": "lower values for ered", "label": "lower values for ered", "shape": "dot", "size": 1}, {"group": 25, "id": "lower values for h", "label": "lower values for h", "shape": "dot", "size": 1}, {"group": 21, "id": "chemical state", "label": "chemical state", "shape": "dot", "size": 1}, {"group": 21, "id": "depth distribution", "label": "depth distribution", "shape": "dot", "size": 1}, {"group": 34, "id": "ha/tcp powders", "label": "ha/tcp powders", "shape": "dot", "size": 1}, {"group": 59, "id": "branched polymers", "label": "branched polymers", "shape": "dot", "size": 1}, {"group": 53, "id": "flame-spraying", "label": "flame-spraying", "shape": "dot", "size": 1}, {"group": 53, "id": "mechanochemical methods", "label": "mechanochemical methods", "shape": "dot", "size": 1}, {"group": 59, "id": "poly(ethylene imine)", "label": "poly(ethylene imine)", "shape": "dot", "size": 1}, {"group": 59, "id": "polyelectrolytes", "label": "polyelectrolytes", "shape": "dot", "size": 1}, {"group": 53, "id": "spray-drying", "label": "spray-drying", "shape": "dot", "size": 1}, {"group": 52, "id": "biocompatible hydrogels", "label": "biocompatible hydrogels", "shape": "dot", "size": 1}, {"group": 9, "id": "degradation rate", "label": "degradation rate", "shape": "dot", "size": 1}, {"group": 8, "id": "fibrin fiber thickness", "label": "fibrin fiber thickness", "shape": "dot", "size": 1}, {"group": 5, "id": "covalently crosslinked pam", "label": "covalently crosslinked pam", "shape": "dot", "size": 1}, {"group": 5, "id": "elastic recovery", "label": "elastic recovery", "shape": "dot", "size": 1}, {"group": 5, "id": "ionically crosslinked gc", "label": "ionically crosslinked gc", "shape": "dot", "size": 1}, {"group": 5, "id": "poly(acrylamide)", "label": "poly(acrylamide)", "shape": "dot", "size": 1}, {"group": 5, "id": "porous microstructure", "label": "porous microstructure", "shape": "dot", "size": 1}, {"group": 19, "id": "varying amounts", "label": "varying amounts", "shape": "dot", "size": 1}, {"group": 33, "id": "apatite formation", "label": "apatite formation", "shape": "dot", "size": 1}]);
+                  edges = new vis.DataSet([{"from": "abg group", "title": "in SF-MC group", "to": "area of neovascularization", "width": 1}, {"from": "abg group", "title": "are mainly located at the junction", "to": "osteoclasts", "width": 1}, {"from": "biological tissues", "title": "used for imaging of", "to": "oct", "width": 1}, {"from": "biological tissues", "title": "consist of", "to": "staggered composite architectures", "width": 1}, {"from": "biological tissues", "title": "exhibit varying mechanical properties over different length scales due to", "to": "porous structures", "width": 1}, {"from": "biological tissues", "title": "are consistent across length scales", "to": "elastic properties", "width": 1}, {"from": "biological tissues", "title": "is more sensitive to differences between time-dependent mechanical responses for large and small contact radii than viscoelastic analysis", "to": "poroelastic analysis", "width": 1}, {"from": "biological tissues", "title": "applicable to", "to": "small-angle scattering tensor tomography (satt)", "width": 1}, {"from": "biological tissues", "title": "insufficient for guiding proper repair", "to": "monolithic materials", "width": 1}, {"from": "biological tissues", "title": "is linked to", "to": "failure", "width": 1}, {"from": "biological tissues", "title": "greater than that associated with a single fracture surface or the nucleation of dislocations", "to": "flaw tolerance", "width": 1}, {"from": "biological tissues", "title": "distinct levels facilitate numerous dissipation mechanisms", "to": "hierarchical structure", "width": 1}, {"from": "biological tissues", "title": "concept is important in understanding the mechanical properties", "to": "increasing resistance to fracture", "width": 1}, {"from": "biological tissues", "title": "mechanisms", "to": "molecular rupture", "width": 1}, {"from": "biological tissues", "title": "mechanisms", "to": "protein unfolding", "width": 1}, {"from": "biological tissues", "title": "mechanisms", "to": "sliding of biomolecular assemblies", "width": 1}, {"from": "biological tissues", "title": "determine", "to": "complex hierarchical structures", "width": 1}, {"from": "biological tissues", "title": "applicable", "to": "nanoscale materials", "width": 1}, {"from": "biological tissues", "title": "Relevant For Understanding Buckling Behavior", "to": "lamellae", "width": 1}, {"from": "biopsies", "title": "used for", "to": "oct", "width": 1}, {"from": "biopsies", "title": "are primary proxies for", "to": "clinical applications", "width": 1}, {"from": "bone regeneration", "title": "is crucial for", "to": "angiogenesis", "width": 1}, {"from": "bone regeneration", "title": "requirement for", "to": "biocompatible scaffolds", "width": 1}, {"from": "bone regeneration", "title": "requirement for", "to": "cellular ingress", "width": 1}, {"from": "bone regeneration", "title": "requirement for", "to": "mechanically stable scaffolds", "width": 1}, {"from": "bone regeneration", "title": "requirement for", "to": "nutrient transport", "width": 1}, {"from": "bone regeneration", "title": "benefits from", "to": "additive manufacturing (am)", "width": 1}, {"from": "bone regeneration", "title": "Accelerates", "to": "bioactive glass scaffold (bgs)", "width": 1}, {"from": "bone regeneration", "title": "promotes", "to": "biomaterials", "width": 1}, {"from": "bone regeneration", "title": "integrates with", "to": "regenerative medicine", "width": 1}, {"from": "bone regeneration", "title": "is a part of", "to": "tissue engineering", "width": 1}, {"from": "bone regeneration", "title": "can provide", "to": "smaller pores", "width": 1}, {"from": "bone regeneration", "title": "promotes", "to": "autologous bone graft", "width": 1}, {"from": "bone regeneration", "title": "occurs in", "to": "cranial defect region", "width": 1}, {"from": "bone regeneration", "title": "occurs", "to": "scaffold group", "width": 1}, {"from": "bone regeneration", "title": "occurs either at the edge or center", "to": "scaffold implantation", "width": 1}, {"from": "bone regeneration", "title": "used for", "to": "bi-layer scaffold", "width": 1}, {"from": "bone regeneration", "title": "promote", "to": "ha coatings", "width": 1}, {"from": "bone regeneration", "title": "affected by pore size", "to": "polycarbonate scaffolds", "width": 1}, {"from": "calcium ions", "title": "is promoted in radial defect area of rabbits after degradation of hydroxyapatite (HA) scaffolds", "to": "neovascularization", "width": 1}, {"from": "calcium ions", "title": "increases", "to": "adhesive activity (epithelial-like cells)", "width": 1}, {"from": "calcium ions", "title": "increases", "to": "adhesive activity (fibroblasts)", "width": 1}, {"from": "calcium ions", "title": "release behavior is studied for", "to": "ionic release behavior", "width": 1}, {"from": "calcium ions", "title": "can have specific binding", "to": "glycoproteins", "width": 1}, {"from": "calcium ions", "title": "form ionic bonds with carboxyl groups", "to": "sa", "width": 1}, {"from": "calcium ions", "title": "Are attracted to", "to": "titanate nanowire matrix", "width": 1}, {"from": "capillaries", "title": "evaluation of", "to": "vascularization", "width": 1}, {"from": "capillaries", "title": "Larger areas not observed at 6 and 12 weeks post-surgery", "to": "collagen scaffolds", "width": 1}, {"from": "capillaries", "title": "Larger areas observed compared to Collagen Scaffold group at 6 and 12 weeks post-surgery", "to": "modified collagen scaffold", "width": 1}, {"from": "growth factor secretion", "title": "influences", "to": "angiogenesis", "width": 1}, {"from": "local active ions", "title": "influences", "to": "angiogenesis", "width": 1}, {"from": "octa", "title": "technology based on", "to": "oct", "width": 1}, {"from": "octa", "title": "most important", "to": "omag", "width": 1}, {"from": "octa", "title": "collects blood flow information from OCT data by coherently analyzing the inherent scattering characteristics of moving", "to": "red blood cells", "width": 1}, {"from": "octa", "title": "extracts", "to": "blood vessels", "width": 1}, {"from": "octa", "title": "visualizes", "to": "neovascularization", "width": 1}, {"from": "octa", "title": "produces", "to": "microangiography images", "width": 1}, {"from": "phosphoric acid", "title": "is promoted in radial defect area of rabbits after degradation of hydroxyapatite (HA) scaffolds", "to": "neovascularization", "width": 1}, {"from": "red blood cells", "title": "Red blood cells can be encapsulated through coaxial e-spin within core-sheath fibers.", "to": "core-sheath fibers", "width": 1}, {"from": "scaffold porosity", "title": "influences", "to": "angiogenesis", "width": 1}, {"from": "sf-c group", "title": "in SF-MC group at 6 weeks after surgery,in SF-MC group at 12 weeks after surgery", "to": "area of new vessels", "width": 1}, {"from": "sf-c group", "title": "increased neovascularization supporting bone regeneration surpassing autogenous bone grafts due to", "to": "sf-mc group", "width": 1}, {"from": "sf-mc group", "title": "is greater than that in", "to": "area of neovascularization", "width": 1}, {"from": "sf-mc group", "title": "is larger than that in,still larger than that in", "to": "area of new vessels", "width": 1}, {"from": "angiogenesis", "title": "promote", "to": "cnts", "width": 1}, {"from": "neovascularization", "title": "Neovascularization is a more specific term for neovascularization.", "to": "neovascularization", "width": 1}, {"from": "neovascularization", "title": "occurs in", "to": "blood vessels", "width": 1}, {"from": "neovascularization", "title": "occurs at different", "to": "power settings", "width": 1}, {"from": "neovascularization", "title": "follows", "to": "surgical procedures", "width": 1}, {"from": "neovascularization", "title": "increases at 6 and 12 weeks post-repair", "to": "both groups", "width": 1}, {"from": "neovascularization", "title": "Promotion at days 7 and 14", "to": "printed scaffolds", "width": 1}, {"from": "vascularization", "title": "facilitate", "to": "lotus root-like scaffolds", "width": 1}, {"from": "copolymer", "title": "affecting for L929 mouse fibroblasts", "to": "cell behavior", "width": 1}, {"from": "copolymer", "title": "increased due to softer extracellular matrix (ECM) provided by fibrin gels", "to": "cell proliferation", "width": 1}, {"from": "copolymer", "title": "not negatively affecting over time", "to": "cell survival", "width": 1}, {"from": "copolymer", "title": "not exhibiting for L929 mouse fibroblasts and human mesenchymal stem cells", "to": "cytotoxicity", "width": 1}, {"from": "copolymer", "title": "confirmed for L929 mouse fibroblasts and human mesenchymal stem cells", "to": "cytotoxicity tests", "width": 1}, {"from": "copolymer", "title": "affecting hydrogel structure", "to": "fiber thickness", "width": 1}, {"from": "copolymer", "title": "behavior investigated for potential biomedical applications", "to": "produced fibrin-based hydrogels", "width": 1}, {"from": "copolymer", "title": "inhibition ensuring controlled hydrogel degradation", "to": "fibrinolytic processes", "width": 1}, {"from": "copolymer", "title": "affecting mechanical properties or cell behavior over time", "to": "hydrogel degradation", "width": 1}, {"from": "copolymer", "title": "behavior of", "to": "natural spider silk mimics", "width": 1}, {"from": "produced fibrin-based hydrogels", "title": "used as scaffolds for tissue engineering", "to": "ecm similarity", "width": 1}, {"from": "produced fibrin-based hydrogels", "title": "used as reactive crosslinkers to reinforce", "to": "reactive amphiphilic copolymers", "width": 1}, {"from": "cell behavior", "title": "influence", "to": "nanocellulose crystals", "width": 1}, {"from": "cell behavior", "title": "Analyze within fiber architecture", "to": "confocal microscopy", "width": 1}, {"from": "cell behavior", "title": "deeply affect", "to": "compressed collagen gels", "width": 1}, {"from": "cell behavior", "title": "deeply affect", "to": "tissue substitute", "width": 1}, {"from": "cell behavior", "title": "prevail over", "to": "biological inputs", "width": 1}, {"from": "cell behavior", "title": "for", "to": "mechanical cues", "width": 1}, {"from": "cell behavior", "title": "Behavior of cells in response to their environment.", "to": "biomaterials", "width": 1}, {"from": "cell behavior", "title": "can promote", "to": "aligned electrospun fibers", "width": 1}, {"from": "cell behavior", "title": "can promote", "to": "soft electrospun fibers", "width": 1}, {"from": "cell behavior", "title": "investigates effect on", "to": "uvb radiation", "width": 1}, {"from": "cell behavior", "title": "controls", "to": "porous p materials", "width": 1}, {"from": "cell proliferation", "title": "follows", "to": "biological wound healing", "width": 1}, {"from": "cell proliferation", "title": "covered by", "to": "defects", "width": 1}, {"from": "cell proliferation", "title": "is", "to": "biological properties", "width": 1}, {"from": "cell proliferation", "title": "Affect", "to": "porous architecture", "width": 1}, {"from": "cell proliferation", "title": "promotes substantial", "to": "hydroxyapatite (ha) scaffolds with microporosity features created using graphite (ha-g scaffolds)", "width": 1}, {"from": "cell proliferation", "title": "enhanced via activation of FAK and ERK1/2 pathways", "to": "multiform tio2 nanocoating", "width": 1}, {"from": "cell proliferation", "title": "enhances", "to": "gelatin", "width": 1}, {"from": "cell proliferation", "title": "decreases", "to": "aft-pbs", "width": 1}, {"from": "cell proliferation", "title": "decreases", "to": "quantum dots", "width": 1}, {"from": "cell proliferation", "title": "facilitates", "to": "hydrogels", "width": 1}, {"from": "cell proliferation", "title": "promotes", "to": "biomedical materials", "width": 1}, {"from": "cell proliferation", "title": "promotes", "to": "tissue engineering proteins", "width": 1}, {"from": "cell proliferation", "title": "promotes", "to": "wound healing polymers", "width": 1}, {"from": "cell proliferation", "title": "quantified via Picogreen dsDNA assay on days 14 and 28 of the culture period,quantified via Picogreen dsDNA assay after removal from media and washing with PBS on days 14 and 28 of the culture period", "to": "cell-seeded scaffolds", "width": 1}, {"from": "cell proliferation", "title": "quantified via Picogreen dsDNA assay on days 14 and 28 of the culture period,quantified via Picogreen dsDNA assay after removal from media and washing with PBS on days 14 and 28 of the culture period", "to": "unseeded scaffolds", "width": 1}, {"from": "cell proliferation", "title": "promote", "to": "biomimetic materials", "width": 1}, {"from": "cell proliferation", "title": "promote", "to": "ha coatings", "width": 1}, {"from": "cell proliferation", "title": "determined by", "to": "celltiter 96(r)", "width": 1}, {"from": "cell proliferation", "title": "measured using", "to": "mts colorimetric reagent", "width": 1}, {"from": "cell proliferation", "title": "provides improved microenvironment for", "to": "eadf4(c16) hydrogels", "width": 1}, {"from": "cell proliferation", "title": "significantly increases", "to": "pcl fibers", "width": 1}, {"from": "cell proliferation", "title": "plays a role in", "to": "fibronectin", "width": 1}, {"from": "cell proliferation", "title": "Is affected by", "to": "surface topography", "width": 1}, {"from": "cell proliferation", "title": "support", "to": "fibrin hydrogels", "width": 1}, {"from": "cell proliferation", "title": "improved", "to": "pcl-collagen core-shell nanomaterials", "width": 1}, {"from": "cell survival", "title": "does not significantly impact during or immediately after fabrication", "to": "concurrent hybrid printing", "width": 1}, {"from": "cell survival", "title": "required for good printability and cell survival", "to": "gel phase", "width": 1}, {"from": "cell survival", "title": "decreases", "to": "3% w/v eadf4(c16) hydrogels", "width": 1}, {"from": "cell survival", "title": "decreases", "to": "pcl fibers", "width": 1}, {"from": "cytotoxicity", "title": "of salting out", "to": "limitation", "width": 1}, {"from": "cytotoxicity", "title": "commonly used agents such as glutaraldehyde and polyepoxy compounds can cause", "to": "collagen", "width": 1}, {"from": "cytotoxicity", "title": "present major challenges due to", "to": "collagen-based gels", "width": 1}, {"from": "cytotoxicity", "title": "present major challenges due to", "to": "tissue substitute", "width": 1}, {"from": "cytotoxicity", "title": "does not significantly increase", "to": "swf extracts", "width": 1}, {"from": "cytotoxicity", "title": "evaluated using", "to": "cytotox onet(tm)", "width": 1}, {"from": "cytotoxicity", "title": "measured by release of", "to": "ldh", "width": 1}, {"from": "cytotoxicity", "title": "demonstrate", "to": "scaffolds", "width": 1}, {"from": "chitin-calcium carbonate composite microstructure", "title": "comparison", "to": "fluorapatite/chitin composites", "width": 1}, {"from": "chitin-calcium carbonate composite microstructure", "title": "has", "to": "chiral structures", "width": 1}, {"from": "chitin-calcium carbonate composite microstructure", "title": "has", "to": "honeycomb substructure", "width": 1}, {"from": "chitin", "title": "present in", "to": "shells", "width": 1}, {"from": "chitin", "title": "should be considered in", "to": "chitosan", "width": 1}, {"from": "chitin", "title": "derived from", "to": "nanochitin", "width": 1}, {"from": "chitin", "title": "found in crustaceans, insects, fungi, and mollusks", "to": "exceptional mechanical properties", "width": 1}, {"from": "chitin", "title": "after cellulose", "to": "second most abundant polymer on earth", "width": 1}, {"from": "chitin", "title": "forms the structure of", "to": "arthropods", "width": 1}, {"from": "chitin", "title": "drugs", "to": "biodegradable polymer scaffolds", "width": 1}, {"from": "chitin", "title": "Amorphous regions provide some plasticity to chitin.", "to": "amorphous_regions", "width": 1}, {"from": "chitin", "title": "High moisture content can lead to increased solubility of chitin.", "to": "moisture content", "width": 1}, {"from": "chitin", "title": "The orientation of microfibrils can affect the mechanical properties of chitin.", "to": "orientation_of_microfibrils", "width": 1}, {"from": "chitin", "title": "Temperature can affect the crystallinity and solubility of chitin.", "to": "temperature", "width": 1}, {"from": "chitin", "title": "Low solubility is a result of high crystallinity.", "to": "low_solubility", "width": 1}, {"from": "chitin", "title": "is", "to": "biopolymers", "width": 1}, {"from": "chitin", "title": "forms", "to": "cationic moieties", "width": 1}, {"from": "chitin", "title": "contains", "to": "nitrogen", "width": 1}, {"from": "chitin", "title": "is related to", "to": "bottom-up formation", "width": 1}, {"from": "chitin", "title": "enables", "to": 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1}, {"from": "collagen fibers", "title": "aligned parallel", "to": "preferred fiber direction", "width": 1}, {"from": "collagen fibers", "title": "results from exponential behavior", "to": "nonlinear stress-strain relationship", "width": 1}, {"from": "collagen fibers", "title": "is", "to": "coat_1", "width": 1}, {"from": "collagen fibers", "title": "Have", "to": "collagen matrices", "width": 1}, {"from": "collagen fibers", "title": "directs mineral deposition within", "to": "polymer-induced liquid-precursor biomineralization", "width": 1}, {"from": "collagen fibers", "title": "are organized into", "to": "fascicles", "width": 1}, {"from": "collagen fibers", "title": "are organized into", "to": "fibrils", "width": 1}, {"from": "collagen fibers", "title": "are organized into", "to": "microfibrils", "width": 1}, {"from": "collagen fibers", "title": "attached_to", "to": "calcified cartilage zone", "width": 1}, {"from": "collagen fibers", "title": "oriented", "to": "deep zone", "width": 1}, 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"collagen fibers", "title": "determine unique mechanical properties", "to": "hierarchical structure", "width": 1}, {"from": "collagen fibers", "title": "influence mechanical behavior,affect mechanical behavior", "to": "hydration conditions", "width": 1}, {"from": "collagen fibers", "title": "influence mechanical behavior", "to": "loading conditions", "width": 1}, {"from": "collagen fibers", "title": "component", "to": "soft tissues (e.g., tendons and ligaments)", "width": 1}, {"from": "collagen fibers", "title": "exposed", "to": "acid-etched enamel", "width": 1}, {"from": "collagen fibers", "title": "allow for", "to": "flexibility", "width": 1}, {"from": "collagen fibers", "title": "allow for", "to": "resilience", "width": 1}, {"from": "collagen fibers", "title": "provide", "to": "strength", "width": 1}, {"from": "collagen fibers", "title": "Collagen fiber bundles span collagen fibers.", "to": "collagen fiber bundles", "width": 1}, {"from": "collagen fibers", "title": "Muscle cells 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"title": "are necessary for", "to": "bone healing", "width": 1}, {"from": "osteons", "title": "is called the cement line", "to": "cement line", "width": 1}, {"from": "osteons", "title": "are wrapped around osteons", "to": "collagen fibrils", "width": 1}, {"from": "osteons", "title": "significantly enhanced perpendicular to", "to": "fracture toughness", "width": 1}, {"from": "osteons", "title": "have consistently higher value than", "to": "ctpr (collagen triple helix rotation parameter)", "width": 1}, {"from": "osteons", "title": "is a more specific term for", "to": "haversian systems", "width": 1}, {"from": "osteons", "title": "formed by", "to": "biological materials with tubular structures", "width": 1}, {"from": "osteons", "title": "deflected by,deflected by", "to": "cracks", "width": 1}, {"from": "osteons", "title": "is primarily made up of", "to": "hydroxyapatite fibers", "width": 1}, {"from": "osteons", "title": "May exhibit crack propagation due to its complex microstructure and 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1}, {"from": "trabecularbone", "title": "MC3T3-E1 cells can differentiate into osteoblasts and form mineralized tissue on trabecular bone.", "to": "mc3t3e1_cells", "width": 1}, {"from": "trabecularbone", "title": "Trabecular bone naturally expresses osteogenic markers.", "to": "osteogenic_markers", "width": 1}, {"from": "inflammatory response", "title": "is involved in", "to": "tnf-\u03b1", "width": 1}, {"from": "inflammatory response", "title": "Can lead to", "to": "nanoparticles (nps)", "width": 1}, {"from": "hydroxyapatite crystals", "title": "consists of mineral matrix primarily composed of hydroxyapatite crystals", "to": "compact bone", "width": 1}, {"from": "hydroxyapatite crystals", "title": "form on", "to": "alloy", "width": 1}, {"from": "hydroxyapatite crystals", "title": "increase over time", "to": "size", "width": 1}, {"from": "hydroxyapatite crystals", "title": "Directed by chemisorbed oleate ions", "to": "longitudinal growth", "width": 1}, {"from": "hydroxyapatite 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"width": 1}, {"from": "type i collagen", "title": "Type I collagen is downregulated in high density collagen", "to": "high density collagen", "width": 1}, {"from": "type i collagen", "title": "Considered as primary organic component throughout", "to": "multiscale approach", "width": 1}, {"from": "bone healing", "title": "Necessary for", "to": "nanoparticles", "width": 1}, {"from": "bone healing", "title": "is achieved through", "to": "bone break", "width": 1}, {"from": "bone healing", "title": "facilitates", "to": "implant coatings", "width": 1}, {"from": "bone healing", "title": "Promote", "to": "hydroxyapatite nanostructures", "width": 1}, {"from": "bone tissue regeneration", "title": "applies to", "to": "ideal implant scaffolds", "width": 1}, {"from": "bone tissue regeneration", "title": "Hold promise as carriers for drug delivery in strategies for", "to": "collagen microspheres", "width": 1}, {"from": "extracellular matrix", "title": "modifies", "to": "cellular remodeling", 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"Renaming", "to": "tensile strength", "width": 1}, {"from": "tensile strength", "title": "showed comparable", "to": "mb pp non-woven fabric", "width": 1}, {"from": "tensile strength", "title": "exhibited significant enhancements in,showed comparable", "to": "pim-1 membrane", "width": 1}, {"from": "tensile strength", "title": "is less than", "to": "nacre", "width": 1}, {"from": "prs", "title": "Used in study by Schrof et al.", "to": "combined techniques", "width": 1}, {"from": "prs", "title": "used to investigate", "to": "osteonal and interstitial domains", "width": 1}, {"from": "prs", "title": "The blurring effect may also be present when using PRS due to its larger spatial resolution compared to SAM and SR-nanoCT.", "to": "blurring effect", "width": 1}, {"from": "prs", "title": "PRS provided complementary data.", "to": "complementary data", "width": 1}, {"from": "sam", "title": "Used in study by Schrof et al.", "to": "combined techniques", "width": 1}, {"from": "sam", "title": 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"Included as", "to": "rgd contains", "width": 1}, {"from": "gelma", "title": "GelMA is a specific type of electrically conductive biopolymer-based nanocomposite hydrogel", "to": "electrically conductive biopolymer-based nanocomposite hydrogels", "width": 1}, {"from": "hierarchical organization/fiber orientation", "title": "required for development", "to": "tendon repair", "width": 1}, {"from": "in vitro assays", "title": "most studies include", "to": "patient-specific implants", "width": 1}, {"from": "mesenchymal stem cells", "title": "frequently used cell types", "to": "tendon repair", "width": 1}, {"from": "mesenchymal stem cells", "title": "release", "to": "polyurethanes", "width": 1}, {"from": "mesenchymal stem cells", "title": "demonstrate excellent cytocompatibility", "to": "hydroxyapatite nanoparticles/polyurethane composite scaffold", "width": 1}, {"from": "mesenchymal stem cells", "title": "investigates the impact on", "to": "study by steeves", "width": 1}, {"from": "natural 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"suppresses", "to": "12", "width": 1}, {"from": "14", "title": "linked to", "to": "3", "width": 1}, {"from": "14", "title": "predict composition-structure-property relationships", "to": "2", "width": 1}, {"from": "14", "title": "produces", "to": "4", "width": 1}, {"from": "14", "title": "properties increase with", "to": "11", "width": 1}, {"from": "14", "title": "attributed to", "to": "9", "width": 1}, {"from": "14", "title": "increases in 3D scaffolds with time", "to": "10", "width": 1}, {"from": "15", "title": "migrate toward from day 3", "to": "16", "width": 1}, {"from": "15", "title": "fill by day 10", "to": "17", "width": 1}, {"from": "15", "title": "toughness is lower than that of SNF/HAP systems", "to": "18", "width": 1}, {"from": "15", "title": "stimulate", "to": "19", "width": 1}, {"from": "15", "title": "needed", "to": "5", "width": 1}, {"from": "15", "title": "blocks flow of volatiles and keeps HRR at low values up to 500 s", "to": "12", "width": 1}, {"from": "15", "title": "reorient", "to": "3", "width": 1}, {"from": "15", "title": "investigates", "to": "30", "width": 1}, {"from": "15", "title": "attachment within interconnected structure", "to": "10", "width": 1}, {"from": "20", "title": "Life cycle assessment is conducted for nanocellulose.", "to": "21", "width": 1}, {"from": "20", "title": "selectively reinforce", "to": "22", "width": 1}, {"from": "20", "title": "have", "to": "23", "width": 1}, {"from": "20", "title": "is necessary", "to": "17", "width": 1}, {"from": "20", "title": "generate", "to": "19", "width": 1}, {"from": "20", "title": "produce", "to": "5", "width": 1}, {"from": "20", "title": "produce", "to": "6", "width": 1}, {"from": "24", "title": "Remains unclear", "to": "25", "width": 1}, {"from": "24", "title": "crucial factor", "to": "26", "width": 1}, {"from": "24", "title": "proposed in this work", "to": "30", "width": 1}, {"from": "3", "title": "differences between", "to": "4", "width": 1}, {"from": "3", "title": "Cu(II) efficiently removes metal ions.", "to": "2", "width": 1}, {"from": "3", "title": "Collagen fiber membrane removes metal ions from industrial wastewater.", "to": "8", "width": 1}, {"from": "3", "title": "except in the reversed direction", "to": "9", "width": 1}, {"from": "3", "title": "exhibits", "to": "12", "width": 1}, {"from": "3", "title": "exhibits", "to": "13", "width": 1}, {"from": "3", "title": "reorient", "to": "16", "width": 1}, {"from": "3", "title": "crucial for", "to": "5", "width": 1}, {"from": "3", "title": "form SNF/HAP systems", "to": "[4, 14]", "width": 1}, {"from": "3", "title": "Has disadvantage of being destructive", "to": "mercury intrusion porosimetry (mip)", "width": 1}, {"from": "3", "title": "Collagen fiber membrane removes metal ions from industrial wastewater.", "to": "7", "width": 1}, {"from": "5", "title": "Reexamined through", "to": "6", "width": 1}, {"from": "5", "title": "increases three times", "to": "8", "width": 1}, {"from": "5", "title": "attributed to", "to": "7", "width": 1}, {"from": "5", "title": "Adsorption capacity is higher at pH.", "to": "4", "width": 1}, {"from": "5", "title": "are fundamental components found in bone and nacre", "to": "[6]", "width": 1}, {"from": "5", "title": "In situ rigs for mechanical testing can be designed for scanning during", "to": "compression", "width": 1}, {"from": "5", "title": "Allows for 2D imaging of", "to": "crack initiation points", "width": 1}, {"from": "5", "title": "Allows for 3D imaging of", "to": "crack path", "width": 1}, {"from": "5", "title": "Can be used in macroscale models to predict properties non-destructively based on", "to": "geometry", "width": 1}, {"from": "5", "title": "Allows for division of images into", "to": "individual pores", "width": 1}, {"from": "5", "title": "Can be used to predict properties non-destructively based on", "to": "interconnect size distribution", "width": 1}, {"from": "5", "title": "Allows for quantification of", "to": "maximum diameter", "width": 1}, 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"4", "width": 1}, {"from": "2", "title": "UO2(II) is effective for metal ion removal.", "to": "16", "width": 1}, {"from": "7", "title": "Predicts", "to": "4", "width": 1}, {"from": "7", "title": "enables", "to": "10", "width": 1}, {"from": "7", "title": "plateau at", "to": "6", "width": 1}, {"from": "7", "title": "Increased with increasing stretch ratio", "to": "[1, 2]", "width": 1}, {"from": "7", "title": "can form multilayer structures if interactions between components are weaker than self-interactions", "to": "[5, 6]", "width": 1}, {"from": "7", "title": "early cell confluence and decreased cellular activity after", "to": "8", "width": 1}, {"from": "7", "title": "shows", "to": "3dps-cmr-bmp2", "width": 1}, {"from": "7", "title": "shows", "to": "control group", "width": 1}, {"from": "8", "title": "results in significant improvements up to day 5", "to": "12", "width": 1}, {"from": "8", "title": "for fiber reorientation", "to": "13", "width": 1}, {"from": "8", "title": "Still contains 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"16", "title": "has", "to": "26", "width": 1}, {"from": "16", "title": "has", "to": "27", "width": 1}, {"from": "16", "title": "has", "to": "28", "width": 1}, {"from": "16", "title": "has", "to": "29", "width": 1}, {"from": "16", "title": "smaller stresses needed for subsubstantial loading/unloading cycles", "to": "6", "width": 1}, {"from": "17", "title": "Circularly polarized iridescence is of structural origin in jeweled beetles.", "to": "18", "width": 1}, {"from": "17", "title": "shows a 50% decrease in heat release rate", "to": "13", "width": 1}, {"from": "17", "title": "Circularly polarized iridescence is of structural origin in Pollia fruit.", "to": "19", "width": 1}, {"from": "17", "title": "is necessary", "to": "21", "width": 1}, {"from": "18", "title": "Varies significantly between radial and peripheral positions", "to": "19", "width": 1}, {"from": "18", "title": "is required", "to": "22", "width": 1}, {"from": "19", "title": "Is lower than that of Moso bamboo and Arundo donax 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"Additional parameters for relative transverse isotropy", "to": "11", "width": 1}, {"from": "6", "title": "Additional parameters for nonlinearity", "to": "10", "width": 1}, {"from": "6", "title": "increases until day 7", "to": "12", "width": 1}, {"from": "6", "title": "fully recovers up to 12 cycles without losing its output", "to": "13", "width": 1}, {"from": "6", "title": "shows", "to": "3dps-cmr-bmp2", "width": 1}, {"from": "6", "title": "shows", "to": "control group", "width": 1}, {"from": "10", "title": "cellular metabolic activity measured over time", "to": "11", "width": 1}, {"from": "10", "title": "show superior cell proliferation at all time points compared to other groups", "to": "12", "width": 1}, {"from": "10", "title": "increases in 3D scaffolds with time", "to": "13", "width": 1}, {"from": "10", "title": "Occurs at length scales from", "to": "0", "width": 1}, {"from": "10", "title": "Occurs at length scales from", "to": "10", "width": 1}, {"from": "11", "title": "strength 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{"from": "hierarchical scaffolds (2)", "title": "improved by addition of HA ps", "to": "scaffold mineralization (14)", "width": 1}, {"from": "hierarchical scaffolds (2)", "title": "further investigation required for understanding involvement", "to": "signaling pathways (13)", "width": 1}, {"from": "hierarchical scaffolds (2)", "title": "significantly increased by addition of MWCNTs", "to": "surface roughness (10)", "width": 1}, {"from": "hydrophilicity", "title": "greater", "to": "cs", "width": 1}, {"from": "hydrophilicity", "title": "increases", "to": "dopamine", "width": 1}, {"from": "hydrophilicity", "title": "results from", "to": "hydrophilic dental/medical titanium materials", "width": 1}, {"from": "hydrophilicity", "title": "hydrophilicity is improved by urethane dimer in copolymers.", "to": "copolymers", "width": 1}, {"from": "hydrophilicity", "title": "results from", "to": "cnt-coated samples", "width": 1}, {"from": "hydrophilicity", "title": "retain", "to": "hierarchical 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"to": "dislocations", "width": 1}, {"from": "failure", "title": "dominated by fiber rupture under compression,dominated by fiber rupture under tension", "to": "avian feather cortex", "width": 1}, {"from": "failure", "title": "Approaches a finite value at", "to": "silk fibers", "width": 1}, {"from": "failure", "title": "isDominatedBy", "to": "abundantuncrackedligaments", "width": 1}, {"from": "failure", "title": "isDominatedBy", "to": "apparentdelaminationandintralamellardebondingoccurring", "width": 1}, {"from": "failure", "title": "isDominatedBy", "to": "fiberrupture", "width": 1}, {"from": "hdt films", "title": "were investigated for", "to": "silicon-on-silicon contacts", "width": 1}, {"from": "pfpe films", "title": "were investigated for", "to": "silicon-on-silicon contacts", "width": 1}, {"from": "silicon-on-silicon contacts", "title": "have", "to": "native oxide layers", "width": 1}, {"from": "silicon-on-silicon contacts", "title": "effect of", "to": "rest time", "width": 1}, {"from": "work of adhesion", "title": "takes into account", "to": "elastic energy", "width": 1}, {"from": "work of adhesion", "title": "takes into account", "to": "interfacial energy", "width": 1}, {"from": "characteristic length", "title": "Occurs over", "to": "sliding", "width": 1}, {"from": "characteristic length", "title": "remains unchanged compared to", "to": "polymer-coated carbon nanotube", "width": 1}, {"from": "characteristic length", "title": "represents", "to": "lame constants", "width": 1}, {"from": "characteristic length", "title": "controls", "to": "cosserat-based constitutive model", "width": 1}, {"from": "substrate", "title": "transfers shape onto", "to": "replica molding", "width": 1}, {"from": "substrate", "title": "coats with SAM", "to": "stamping", "width": 1}, {"from": "substrate", "title": "applied on", "to": "polyester fabrics", "width": 1}, {"from": "substrate", "title": "acts as", "to": "bn nanotubes", "width": 1}, {"from": "substrate", "title": "Grown on", 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1}, {"from": "structural integrity", "title": "increases after acetone post-treatment", "to": "plla/pcl fibrous membranes", "width": 1}, {"from": "structural integrity", "title": "Enables", "to": "0", "width": 1}, {"from": "structural integrity", "title": "provides", "to": "pamam dendrimers", "width": 1}, {"from": "structural integrity", "title": "is preserved", "to": "twisted branch", "width": 1}, {"from": "structural integrity", "title": "lacking", "to": "inkjet-based bioprinting", "width": 1}, {"from": "structural integrity", "title": "maintain", "to": "mof layers", "width": 1}, {"from": "structural integrity", "title": "dictates through surrounding permeable shell structure", "to": "cortex", "width": 1}, {"from": "structural integrity", "title": "Provides", "to": "endothelial (ec) cytoskeleton", "width": 1}, {"from": "structural integrity", "title": "remains intact after _in vitro_ testing", "to": "necklace bead model scaffolds", "width": 1}, {"from": "surface roughness", "title": 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mM MA, and 0.01 m FeCl3", "to": "water content", "width": 1}, {"from": "small strains", "title": "possesses", "to": "high cyclic stability", "width": 1}, {"from": "small strains", "title": "occur in", "to": "attached regions", "width": 1}, {"from": "small strains", "title": "are flexible at,allow for lower mechanical resistance during cell movement", "to": "ifs", "width": 1}, {"from": "stiffness improvement", "title": "is modulated over a large window from", "to": "water content", "width": 1}, {"from": "stiffness improvement", "title": "Compared to the baseline is observed, but decreases due to tooth failure occurring in suture systems with high stress concentrations at the base of the teeth owing to the smaller cross-al area.", "to": "n1 interlocking angle", "width": 1}, {"from": "true stress-strain curves", "title": "displayed", "to": "biphasic stress-strain behavior", "width": 1}, {"from": "fe3+-coo+coordination interactions", "title": "disintegrates", "to": "regime ii", "width": 1}, {"from": "fe3+-coo+coordination interactions", "title": "breaks until rupture", "to": "regime iii", "width": 1}, {"from": "water content", "title": "dominates more than anisotropy", "to": "wet conditions", "width": 1}, {"from": "water content", "title": "method for achieving", "to": "compression samples", "width": 1}, {"from": "water content", "title": "Has a negative relationship", "to": "maximum compressive stress", "width": 1}, {"from": "water content", "title": "12.80 wt%", "to": "mf127-20ca composite", "width": 1}, {"from": "water content", "title": "varies polymerically", "to": "plla composites", "width": 1}, {"from": "aligned array structures", "title": "Aligned array structures can be created through manipulation or change of e-spin set-up or driving force.", "to": "assemblies", "width": 1}, {"from": "3d collectors", "title": "Appropriate 3D collectors can be used for straightforward assembly.", "to": "assemblies", "width": 1}, {"from": "bacteria", "title": "Bacteria can be encapsulated and maintained for months at low temperatures within e-spin fibers.", "to": "e-spin fibers", "width": 1}, {"from": "bacteria", "title": "through", "to": "smaller sized np", "width": 1}, {"from": "bacteria", "title": "Iron oxide is a major component of some types of bacteria.", "to": "iron oxide", "width": 1}, {"from": "bacteria", "title": "include", "to": "promising candidate systems for biotemplating", "width": 1}, {"from": "bacteria", "title": "is involved in", "to": "silk production (bacteria)", "width": 1}, {"from": "bacteria", "title": "Can be used to", "to": "assemble bioinspired composite materials", "width": 1}, {"from": "bacteria", "title": "Capable of", "to": "producing compounds", "width": 1}, {"from": "bacteria", "title": "used as bio-template for synthesizing", "to": "carbon materials", "width": 1}, {"from": "bacteria", "title": "grown on", "to": "sponges", "width": 1}, {"from": "bacteria", "title": "captured on", "to": "zno nanowires", "width": 1}, {"from": "bioactive agents", "title": "Bioactive agents are incorporated into e-spin nanomaterials.", "to": "e-spin nanomaterials", "width": 1}, {"from": "bioactive molecules", "title": "Incorporation of bioactive molecules into e-spin nanomaterials is achieved through strategies similar to drug loading.", "to": "e-spin nanomaterials", "width": 1}, {"from": "bioactive molecules", "title": "Introduced for controlled delivery", "to": "drug/bioactive molecule delivery", "width": 1}, {"from": "bioactive molecules", "title": "being incorporated into scaffolds", "to": "biomolecule incorporation for bioactivity regulation and cell behavior control", "width": 1}, {"from": "bioactive molecules", "title": "release", "to": "renewable biodegradable scaffolds", "width": 1}, {"from": "biological entities", "title": "Bioactive entities are incorporated into e-spin nanomaterials.", "to": "e-spin nanomaterials", "width": 1}, {"from": "connective tissue-mimicking structures", "title": "Connective tissue-mimicking structures can be created.", "to": "patterned structures", "width": 1}, {"from": "crimping structures", "title": "Crimping structures absorb more components or strain due to their flexible structures and bending characteristics.", "to": "e-spin fibers", "width": 1}, {"from": "ecm-mimicking structures", "title": "ECM-mimicking structures can be created through assembly.", "to": "assemblies", "width": 1}, {"from": "hybrid structures", "title": "Hybrid structures can be created through assembly.", "to": "assemblies", "width": 1}, {"from": "hybrid structures", "title": "show significant improvement in", "to": "bending-dominated lattices", "width": 1}, {"from": "hybrid structures", "title": "have a reduction in stiffness accompanied by an increase in", "to": "stretching-dominated lattices", "width": 1}, {"from": "individual components", "title": "Individual components can be combined to create assemblies.", "to": "assemblies", "width": 1}, {"from": "patterned structures", "title": "Patterned structures can be created with controllable shape and orientation.", "to": "assemblies", "width": 1}, {"from": "pell", "title": "Direct e-spin followed by immersion is used for fabrication of PELL (poly(ethylene oxide)-l-lactic acid) nanomaterials.", "to": "e-spin nanomaterials", "width": 1}, {"from": "ropes", "title": "Ropes can be created through multilayer e-spin.", "to": "assemblies", "width": 1}, {"from": "tubes", "title": "Tubes can be created through multilayer e-spin, assembly by 2D electrospun fibrous mats or using sui collectors as templates.", "to": "assemblies", "width": 1}, {"from": "tubes", "title": "Resulted in", "to": "peptide self-assembly", "width": 1}, {"from": "e-spin nanomaterials", "title": "have", "to": "hollow, core-shell, or multichannel structures", "width": 1}, {"from": "sheet nacre", "title": "is", "to": "intermediate layer", "width": 1}, {"from": "sheet nacre", "title": "results in", "to": "macro", "width": 1}, {"from": "sheet nacre", "title": "are arranged more randomly", "to": "ts", "width": 1}, {"from": "s. subcrenata", "title": "performs", "to": "burrowing", "width": 1}, {"from": "s. subcrenata", "title": "inhabits", "to": "shallow sandy environments", "width": 1}, {"from": "sub-surface", "title": "has", "to": "cross-lamellar structures", "width": 1}, {"from": "sub-surface", "title": "contains", "to": "interdigitated polygonal calcium carbonate ts", "width": 1}, {"from": "sub-surface", "title": "each have", "to": "light and shade first-order platelets", "width": 1}, {"from": "sub-surface", "title": "are oriented at", "to": "second-order lamellae", "width": 1}, {"from": "intermediate layer", "title": "Choice", "to": "average stiffness", "width": 1}, {"from": "intermediate layer", "title": "Tibia cuticle structure encompasses three major layers: exocuticle, intermediate layer, and endocuticle.", "to": "tibia cuticle structure", "width": 1}, {"from": "intermediate layer", "title": "forms", "to": "array pan fibers (ap fibers)", "width": 1}, {"from": "intermediate layer", "title": "varies", "to": "angular direction", "width": 1}, {"from": "intermediate layer", "title": "present", "to": "scorpion pincer cuticle", "width": 1}, {"from": "second-order lamellae", "title": "Are formed by stacking first-order lamellae", "to": "conch shell", "width": 1}, {"from": "cnc/pva composite", "title": "Compression occurs rapidly at low draw ratios and remains relatively constant at higher draw ratios for CNC/PVA composite.", "to": "compression", "width": 1}, {"from": "cnc/pva composite", "title": "Crack propagation behavior is different depending on the amount of polymer present for CNC/PVA composite. At lower polymer contents, delamination of CNC layers and low tortuosity are observed. At higher polymer contents, constrained microcracking and ligament formation are observed.", "to": "crack propagation", "width": 1}, {"from": "cnc/pva composite", "title": "CNC/PVA composite undergoes drawing experiments to gain deeper understanding of mechanical behavior and phase transition.", "to": "drawing experiments", "width": 1}, {"from": "cnc/pva composite", "title": "Hydration during drawing experiments dynamizes polymer matrix for CNC/PVA composite.", "to": "hydration", "width": 1}, {"from": "cnc/pva composite", "title": "Increasing amounts of CNCs lead to stiffening of composite materials at the expense of elongation at break for CNC/PVA composite.", "to": "stiffening", "width": 1}, {"from": "cnc/pva composite", "title": "Increasing amounts of CNCs lead to strengthening of composite materials at the expense of elongation at break for CNC/PVA composite.", "to": "strengthening", "width": 1}, {"from": "compression", "title": "By a distance of 4.5 \u03bcm three consecutive times", "to": "first stellation", "width": 1}, {"from": "compression", "title": "Compression as a force acting on inner MTs", "to": "inner mts", "width": 1}, {"from": "compression", "title": "Compression as a force acting on outer MTs", "to": "outer mts", "width": 1}, {"from": "compression", "title": "exhibits asymmetric mechanical properties", "to": "avian feather cortex", "width": 1}, {"from": "compression", "title": "and relaxation simulations are conducted", "to": "\u03b2g amyloid fibrils", "width": 1}, {"from": "compression", "title": "playingASignificantRoleInStiffeningTheFoam", "to": "membranestretching", "width": 1}, {"from": "compression", "title": "causesAxialSplitting", "to": "drycortex", "width": 1}, {"from": "compression", "title": "causesConcertinaBucklingModeWithoutObviousSplittingInWetRachis,causesImprovedCompressiveStabilityComparedToHollowCortexInWetRachis", "to": "feathershaft", "width": 1}, {"from": "compression", "title": "causesConcertinaBucklingModeWithoutObviousSplittingInWetRachis,causesConcertinaBucklingModeWithoutObviousSplittingInWetRachis", "to": "overallfeatherrachis", "width": 1}, {"from": "compression", "title": "arises from", "to": "carbon nanotubes (cnts)", "width": 1}, {"from": "crack propagation", "title": "is resisted by multiple toughening mechanisms", "to": "snake eggshells", "width": 1}, {"from": "crack propagation", "title": "occurs simultaneously across and along macrofibers", "to": "crack branching", "width": 1}, {"from": "crack propagation", "title": "reveals the presence of interlaminar sliding and extrinsic toughening mechanisms", "to": "beetle elytra", "width": 1}, {"from": "crack propagation", "title": "followed by crack propagation", "to": "pre-existing defects", "width": 1}, {"from": "crack propagation", "title": "allows for visualization at nanoscale resolution", "to": "time-lapse nanoct", "width": 1}, {"from": "crack propagation", "title": "is", "to": "energy required", "width": 1}, {"from": "crack propagation", "title": "results in increased fracture resistance", "to": "zig-zag pattern", "width": 1}, {"from": "crack propagation", "title": "resilience", "to": "strip", "width": 1}, {"from": "crack propagation", "title": "expands", "to": "outer cracks", "width": 1}, {"from": "crack propagation", "title": "prevents", "to": "exoskeleton", "width": 1}, {"from": "crack propagation", "title": "prevent", "to": "laminates", "width": 1}, {"from": "crack propagation", "title": "effectively prevent when crack is perpendicular to fiber growth", "to": "fiber alignment", "width": 1}, {"from": "crack propagation", "title": "prevents", "to": "overlapping_structure", "width": 1}, {"from": "hydration", "title": "influences", "to": "shell sub-regions", "width": 1}, {"from": "hydration", "title": "is dependent on", "to": "compressive_response", "width": 1}, {"from": "hydration", "title": "significantly influences", "to": "human cortical bone tissue mechanics", "width": 1}, {"from": "hydration", "title": "Due to", "to": "enhanced interfacial separation", "width": 1}, {"from": "hydration", "title": "plays crucial role in delaying failure", "to": "interface strength", "width": 1}, {"from": "hydration", "title": "Significantly influences the mechanical response", "to": "horns", "width": 1}, {"from": "stiffening", "title": "increases through structural modification", "to": "strengthening bridges", "width": 1}, {"from": "strengthening", "title": "Strengthening can further enhance synergy (strength-plasticity)", "to": "synergy (strength-plasticity)", "width": 1}, {"from": "strengthening", "title": "have been found to be most effective in refining grain boundaries for", "to": "severe plastic deformation (spd) processes", "width": 1}, {"from": "strengthening", "title": "occurs", "to": "nacre", "width": 1}, {"from": "collagen fiber alignment", "title": "effects", "to": "magnetic field", "width": 1}, {"from": "collagen fiber alignment", "title": "effects", "to": "polymerization temperature", "width": 1}, {"from": "collagen fiber alignment", "title": "type of", "to": "collagen fiber alignment", "width": 1}, {"from": "collagen fiber alignment", "title": "opposite property", "to": "collagen fiber misalignment", "width": 1}, {"from": "collagen fiber alignment", "title": "measurement method", "to": "parallellism index", "width": 1}, {"from": "collagen fluid", "title": "constituent", "to": "collagen gel", "width": 1}, {"from": "collagen gel", "title": "type of", "to": "collagen-based gels", "width": 1}, {"from": "collagen gel", "title": "external factor affecting collagen gel properties", "to": "magnetic field", "width": 1}, {"from": "collagen gel", "title": "process", "to": "polymerization", "width": 1}, {"from": "collagen gel", "title": "used for describing material constituents", "to": "neo-hookean hyperelastic constitutive model", "width": 1}, {"from": "compressive modulus", "title": "measured", "to": "collagen-based gels", "width": 1}, {"from": "compressive modulus", "title": "component", "to": "mechanical properties of collagen gel", "width": 1}, {"from": "compressive modulus", "title": "depends largely on", "to": "keratin-based biomaterials", "width": 1}, {"from": "compressive modulus", "title": "has an average value of", "to": "white yak horn sheath", "width": 1}, {"from": "confocal reflectance microscopy", "title": "type of", "to": "collagen fiber alignment measurement method", "width": 1}, {"from": "confocal reflectance microscopy", "title": "measures", "to": "fibril alignment", "width": 1}, {"from": "finite element analysis", "title": "type of", "to": "collagen fluid behavior analysis result", "width": 1}, {"from": "finite element analysis", "title": "is conducted", "to": "hierarchical microstructures", "width": 1}, {"from": "finite element analysis", "title": "Corresponds to", "to": "greenish blue contours", "width": 1}, {"from": "finite element analysis", "title": "Indicates", "to": "red spots or patches", "width": 1}, {"from": "finite element analysis", "title": "Reveals", "to": "stress distribution patterns", "width": 1}, {"from": "finite element analysis", "title": "Finite element analysis can be used to study the behavior of human knee-models.", "to": "human knee-model", "width": 1}, {"from": "finite element analysis", "title": "calculated the stress distribution of subjected to a spatial concentrated force", "to": "scorpion aculeus", "width": 1}, {"from": "finite element analysis", "title": "Confirmed", "to": "theoretical results", "width": 1}, {"from": "finite element analysis", "title": "quantified in", "to": "average strain energy density", "width": 1}, {"from": "finite element analysis", "title": "used for", "to": "local model", "width": 1}, {"from": "finite element analysis", "title": "assigned to", "to": "linear elastic stiffness properties", "width": 1}, {"from": "fluid convection", "title": "description", "to": "collagen fluid behavior analysis result", "width": 1}, {"from": "internal temperature gradients", "title": "creates", "to": "polymerization temperature", "width": 1}, {"from": "magnetic field", "title": "The magnetic field is an external factor that affects the behavior of the light absorber.", "to": "light absorber", "width": 1}, {"from": "parallellism index", "title": "quantifies", "to": "fibril alignment", "width": 1}, {"from": "polymerization", "title": "is initiated from", "to": "reinforced hydrogels", "width": 1}, {"from": "shear storage modulus", "title": "provides", "to": "collagen-based gels", "width": 1}, {"from": "shear storage modulus", "title": "component", "to": "mechanical properties of collagen gel", "width": 1}, {"from": "temperature distribution", "title": "description", "to": "collagen fluid behavior analysis result", "width": 1}, {"from": "collagen-based gels", "title": "address", "to": "damage to corneal stroma", "width": 1}, {"from": "collagen-based gels", "title": "used for", "to": "stromal substitutes", "width": 1}, {"from": "collagen-based gels", "title": "used for", "to": "tissue substitute", "width": 1}, {"from": "fibril alignment", "title": "Correlated with", "to": "high density regions", "width": 1}, {"from": "aragonite ts", "title": "is a part of", "to": "composite", "width": 1}, {"from": "aragonite ts", "title": "is a part of", "to": "proteinaceous layers", "width": 1}, {"from": "aragonite ts", "title": "consists primarily of", "to": "nacre", "width": 1}, {"from": "nacre", "title": "is", "to": "composite", "width": 1}, {"from": "nacre", "title": "is", "to": "mother-of-pearl", "width": 1}, {"from": "nacre", "title": "is", "to": "proteinaceous layers", "width": 1}, {"from": "nacre", "title": "inspired by", "to": "hierarchically structured low weight impact-resistant material", "width": 1}, {"from": "nacre", "title": "contains", "to": "brick-and-mortar microstructure", "width": 1}, {"from": "nacre", "title": "interface between", "to": "inorganic tablets", "width": 1}, {"from": "nacre", "title": "contains", "to": "nanoasperities", "width": 1}, {"from": "nacre", "title": "consists of", "to": "brick-and-mortar composite structure", "width": 1}, {"from": "nacre", "title": "contributes to", "to": "damage diffusion", "width": 1}, {"from": "nacre", "title": "can withstand", "to": "high deformations", "width": 1}, {"from": "nacre", "title": "bridges delamination cracks", "to": "organic matrix", "width": 1}, {"from": "nacre", "title": "act as", "to": "short anagonite agglomerates", "width": 1}, {"from": "nacre", "title": "results from", "to": "strain hardening", "width": 1}, {"from": "nacre", "title": "is the consequence of", "to": "ts pull-out", "width": 1}, {"from": "nacre", "title": "is 30-40 times greater than", "to": "ultra-high toughness", "width": 1}, {"from": "nacre", "title": "Nacre is similar to laminated structures", "to": "laminated structure", "width": 1}, {"from": "nacre", "title": "the brick-and-mortar microstructure of nacre provides it with high strength and toughness.", "to": "brick and mortar microstructures", "width": 1}, {"from": "nacre", "title": "the inner nacreous layer of abalone shells is composed of nacre.", "to": "inner nacreous layer", "width": 1}, {"from": "nacre", "title": "the outer prismatic layer of abalone shells is composed of nacre.", "to": "outer prismatic layer", "width": 1}, {"from": "nacre", "title": "nacre is composed of stacked platelets of calcium carbonate and organic matrix.", "to": "stacked platelets", "width": 1}, {"from": "nacre", "title": "nacre has high shear strength due to its brick-and-mortar microstructure.", "to": "shear strength", "width": 1}, {"from": "nacre", "title": "found in", "to": "mollusk shells", "width": 1}, {"from": "nacre", "title": "all factors contributing to", "to": "advantageous properties", "width": 1}, {"from": "nacre", "title": "leads to", "to": "global unusual mechanical properties", "width": 1}, {"from": "nacre", "title": "leads to", "to": "increases energy absorption and toughness", "width": 1}, {"from": "nacre", "title": "leads to", "to": "large viscoelastic energy dissipation", "width": 1}, {"from": "nacre", "title": "leads to", "to": "local scale sliding", "width": 1}, {"from": "nacre", "title": "is identified as a key feature in the mechanics of", "to": "conformal t waviness", "width": 1}, {"from": "nacre", "title": "mimics", "to": "ice templating", "width": 1}, {"from": "nacre", "title": "becomes significantly stiff as biopolymer chains approach full extension", "to": "organic material", "width": 1}, {"from": "nacre", "title": "represents the volume element used to calculate mechanical properties of a material", "to": "representative volume element", "width": 1}, {"from": "nacre", "title": "consists of", "to": "tabular shells (ts)", "width": 1}, {"from": "nacre", "title": "new toughening mechanism discovered through in-situ atomic force microscopy (AFM) fracture tests combined with digital image correlation techniques", "to": "sliding of ts", "width": 1}, {"from": "nacre", "title": "found in", "to": "certain molluscan shells", "width": 1}, {"from": "nacre", "title": "can be studied through", "to": "fundamental structural principles of biological materials", "width": 1}, {"from": "nacre", "title": "has", "to": "high volume fraction of inorganic phase", "width": 1}, {"from": "nacre", "title": "allows", "to": "low-order structure", "width": 1}, {"from": "nacre", "title": "consists of", "to": "platelets", "width": 1}, {"from": "nacre", "title": "is", "to": "two-phase composite material", "width": 1}, {"from": "nacre", "title": "Accompanies", "to": "multilevel, irreversible interfacial slip", "width": 1}, {"from": "nacre", "title": "Accompanies", "to": "multiple cracking", "width": 1}, {"from": "nacre", "title": "Exhibits", "to": "r-curves", "width": 1}, {"from": "nacre", "title": "Involves", "to": "stress redistribution", "width": 1}, {"from": "nacre", "title": "Is a Significant Contributor to", "to": "process zone toughening mechanism", "width": 1}, {"from": "nacre", "title": "remain shielded from propagating crack", "to": "aragonite platelets", "width": 1}, {"from": "nacre", "title": "widely accepted mechanism until now", "to": "direct crack deflection", "width": 1}, {"from": "nacre", "title": "Under indentation, voids due to nano-asperities separating the ts have a more prominent contribution to energy absorption capacity until contact between the ts takes over in resisting the load.", "to": "void formation", "width": 1}, {"from": "nacre", "title": "include", "to": "biominerals", "width": 1}, {"from": "nacre", "title": "affects the macroscopic tensile stress-strain response", "to": "bulk modulus", "width": 1}, {"from": "nacre", "title": "is used in previous simulations", "to": "cohesive law", "width": 1}, {"from": "nacre", "title": "is exhibited", "to": "hardening behavior", "width": 1}, {"from": "nacre", "title": "is associated with", "to": "inter-t shearing", "width": 1}, {"from": "nacre", "title": "is 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hydrogels (nested-network hydrogels)", "title": "To PDMS substrates.", "to": "bonding strength", "width": 1}, {"from": "nn hydrogels (nested-network hydrogels)", "title": "Compared to native PDMS and PDMS lubricated with a non-bonded aqueous lubricant.", "to": "decreased surface friction", "width": 1}, {"from": "nn hydrogels (nested-network hydrogels)", "title": "Displayed negligible swelling in PBS and cell culture medium (cell culture media).", "to": "swelling properties (swelling behavior)", "width": 1}, {"from": "nn hydrogels (nested-network hydrogels)", "title": "Controlled by protein modification.", "to": "tunable cell adhesion abilities", "width": 1}, {"from": "antibacterial properties", "title": "retained due to CHI\u0027s inherent antibacterial properties", "to": "nanofiber scaffolds", "width": 1}, {"from": "antibacterial properties", "title": "inherent", "to": "chi", "width": 1}, {"from": "antibacterial properties", "title": "exhibits", "to": "wound healing polymers", "width": 1}, {"from": "antibacterial properties", "title": "improve", "to": "hierarchical surfaces", "width": 1}, {"from": "antibacterial properties", "title": "investigated for antibacterial properties", "to": "3d-printed silica-sf aerogel scaffolds", "width": 1}, {"from": "plate/shell mechanics", "title": "Applies To", "to": "thin structures", "width": 1}, {"from": "plate/shell mechanics", "title": "Provided Fundamental Theories For", "to": "timoshenko and woinowsky-krieger", "width": 1}, {"from": "material point method (mpm)", "title": "integrated in nested multiscale modeling framework", "to": "atomic points", "width": 1}, {"from": "material point method (mpm)", "title": "represents domain geometry", "to": "continuum scale", "width": 1}, {"from": "material point method (mpm)", "title": "effective for modeling", "to": "large biological domains", "width": 1}, {"from": "material point method (mpm)", "title": "simulated using image data obtained from confocal laser scanning microscopy", "to": "microvessels", "width": 1}, {"from": "interior", "title": "Consists of", "to": "ostwald ripening", "width": 1}, {"from": "ostwald ripening", "title": "Involves the growth of", "to": "large-scale ps", "width": 1}, {"from": "ostwald ripening", "title": "Involves the maturation of", "to": "small-scale ps", "width": 1}, {"from": "porous organic polymers (pops)", "title": "Can be synthesized as", "to": "membranes", "width": 1}, {"from": "porous organic polymers (pops)", "title": "Method for synthesizing", "to": "template-free synthesis", "width": 1}, {"from": "porous organic polymers (pops)", "title": "Have", "to": "adjustable morphologies", "width": 1}, {"from": "porous organic polymers (pops)", "title": "Have", "to": "high surface area", "width": 1}, {"from": "size-tunable porous carbon nanospheres", "title": "Can be synthesized by varying", "to": "catalysts", "width": 1}, {"from": "size-tunable porous carbon nanospheres", "title": "Can be synthesized by varying", "to": "monomers", "width": 1}, {"from": "size-tunable porous carbon nanospheres", "title": "Can be synthesized by varying", "to": "naphthalene", "width": 1}, {"from": "spherical polyphenylenes (pps)", "title": "Can be synthesized using", "to": "naphthalene", "width": 1}, {"from": "spherical polyphenylenes (pps)", "title": "Can be synthesized using", "to": "pyrene", "width": 1}, {"from": "template-free synthesis", "title": "Uses different types of", "to": "catalysts", "width": 1}, {"from": "template-free synthesis", "title": "Uses different types of", "to": "monomers", "width": 1}, {"from": "membranes", "title": "connect", "to": "foam in toucan beak", "width": 1}, {"from": "membranes", "title": "are ideal for", "to": "cellulose fibers", "width": 1}, {"from": "membranes", "title": "use", "to": "go-polymer nanocomposes", "width": 1}, {"from": "membranes", "title": "can be spun into", "to": "silk", "width": 1}, {"from": "catalysts", "title": "design and fabrication", "to": "water oxidation", "width": 1}, {"from": "poly(dimethylsiloxane)", "title": "easily integrated into", "to": "larger systems", "width": 1}, {"from": "poly(dimethylsiloxane)", "title": "allows for", "to": "replication", "width": 1}, {"from": "replica molding", "title": "involves creating", "to": "elastomeric master mold", "width": 1}, {"from": "replica molding", "title": "suitable for creating complex shapes with intricate optical surfaces", "to": "optics", "width": 1}, {"from": "replica molding", "title": "with", "to": "micropillar pdms substrates", "width": 1}, {"from": "stamping", "title": "transfers pattern onto substrate coated with self-assembled monolayer (SAM)", "to": "elastomeric stamp", "width": 1}, {"from": "optics", "title": "use in", "to": "thin films", "width": 1}, {"from": "optics", "title": "Renaming for consistency and clarity", "to": "optical devices", "width": 1}, {"from": "copolymers", "title": "copolymers are composed of polycaprolactone and urethane dimer.", "to": "polycaprolactone", "width": 1}, {"from": "copolymers", "title": "dynamic network crystallization is prevented by urethane dimer in copolymers.", "to": "dynamic network crystallization", "width": 1}, {"from": "copolymers", "title": "elastomeric properties are observed due to crosslinking points in copolymers containing urethane dimer.", "to": "elastomeric properties", "width": 1}, {"from": "copolymers", "title": "good thermal and mechanical properties are observed due to dissociation and reformation of physically crosslinked bonds during heating.", "to": "good thermal and mechanical properties", "width": 1}, {"from": "copolymers", "title": "copolymers containing urethane dimer form hydrophilic polymers.", "to": "hydrophilic copolymers", "width": 1}, {"from": "copolymers", "title": "self-propagating nanocomposites represent a direct pathway for manipulating surface topography.", "to": "self-propagating nanocomposites", "width": 1}, {"from": "copolymers", "title": "urethane dimer is a component of copolymers.", "to": "urethane dimer", "width": 1}, {"from": "copolymers", "title": "demonstrate significant", "to": "poly[(ethylene glycol methyl ether methacrylate)-co-n,n-dimethylacrylamide]", "width": 1}, {"from": "copolymers", "title": "consist of", "to": "bioactive photoresists", "width": 1}, {"from": "copolymers", "title": "are part of", "to": "methacrylate", "width": 1}, {"from": "copolymers", "title": "are part of", "to": "n-vinyl-2-pyrrolidone", "width": 1}, {"from": "copolymers", "title": "imparted by", "to": "specific functionalities", "width": 1}, {"from": "urethane dimer", "title": "urethane dimer contains hydrophilic groups.", "to": "hydrophilic group", "width": 1}, {"from": "urethane dimer", "title": "urethane dimer acts as a physical crosslinking agent.", "to": "physical crosslinking agent", "width": 1}, {"from": "polycaprolactone", "title": "infiltrated", "to": "wood-based mimicked bone", "width": 1}, {"from": "polycaprolactone", "title": "features", "to": "in vivo degradation time", "width": 1}, {"from": "polycaprolactone", "title": "used for", "to": "microscale extrusion writing", "width": 1}, {"from": "dolphins", "title": "use", "to": "echolocation", "width": 1}, {"from": "echolocation", "title": "enables", "to": "prey_location", "width": 1}, {"from": "echolocation", "title": "use", "to": "odontocetes", "width": 1}, {"from": "echolocation", "title": "use", "to": "whales", "width": 1}, {"from": "coating", "title": "reveal", "to": "custom testing protocols", "width": 1}, {"from": "coating", "title": "reveal", "to": "standard testing protocols", "width": 1}, {"from": "coating", "title": "prepared through combining Ta2O5 nanopowder and BGO coatings", "to": "bismuth germinate (bgo)", "width": 1}, {"from": "coating", "title": "may result in uneven coating", "to": "iles", "width": 1}, {"from": "coating", "title": "may result in uneven coating", "to": "shape-changing textile strategies", "width": 1}, {"from": "coating", "title": "on", "to": "nn hydrogels", "width": 1}, {"from": "coating", "title": "forms", "to": "electroplated layer", "width": 1}, {"from": "coating", "title": "involves", "to": "electroplating", "width": 1}, {"from": "coating", "title": "Separate from filament", "to": "outer segments", "width": 1}, {"from": "coating", "title": "Prevented by", "to": "peeling", "width": 1}, {"from": "custom testing protocols", "title": "reveal resistance to", "to": "mechanical abradients", "width": 1}, {"from": "hierarchical surfaces", "title": "results in", "to": "coating process", "width": 1}, {"from": "hierarchical surfaces", "title": "durability", "to": "demonstrate", "width": 1}, {"from": "hierarchical surfaces", "title": "provide potential", "to": "antibacterial features", "width": 1}, {"from": "hierarchical surfaces", "title": "present", "to": "binding sites for cell membrane receptors", "width": 1}, {"from": "hierarchical surfaces", "title": "modulate", "to": "cell-surface interactions", "width": 1}, {"from": "superhydrophobic biological materials", "title": "mimics", "to": "coating process", "width": 1}, {"from": "chemical reactions", "title": "can be easily controlled during", "to": "chemical reactions", "width": 1}, {"from": "chemical reactions", "title": "offers easy control over", "to": "gel methods", "width": 1}, {"from": "crystal growth properties", "title": "is an important property that can be controlled during", "to": "diffusion rates", "width": 1}, {"from": "crystal growth properties", "title": "is an important property that can be controlled during", "to": "local supersaturation", "width": 1}, {"from": "crystal growth techniques", "title": "is a type of", "to": "gel methods", "width": 1}, {"from": "crystal growth techniques", "title": "is a type of", "to": "solution techniques", "width": 1}, {"from": "crystal harvesting", "title": "is the process of removing crystals from", "to": "harvesting", "width": 1}, {"from": "crystal morphology and kinetics", "title": "gains insight into mechanisms that govern", "to": "crystal formation", "width": 1}, {"from": "environmental factors", "title": "can be mimicked using", "to": "mineralized tissue matrix environment", "width": 1}, {"from": "environmental factors", "title": "affect", "to": "nano-mechanics", "width": 1}, {"from": "environmental factors", "title": "interacts with", "to": "genetics", "width": 1}, {"from": "environmental factors", "title": "Influence", "to": "chitosan (cs) tubules and membranes", "width": 1}, {"from": "gel methods", "title": "has controls for", "to": "diffusion rates", "width": 1}, {"from": "gel methods", "title": "facilitates", "to": "harvesting", "width": 1}, {"from": "gel methods", "title": "has controls for", "to": "local supersaturation", "width": 1}, {"from": "gel methods", "title": "mimics more realistically", "to": "mineralized tissue matrix environment", "width": 1}, {"from": "afm studies", "title": "reveals", "to": "nanogranular structure", "width": 1}, {"from": "classical growth mode", "title": "differs from", "to": "non-classical growth mode", "width": 1}, {"from": "nanogranular organization", "title": "is attributed to", "to": "non-classical growth mode", "width": 1}, {"from": "nanogranular organization", "title": "is an example of", "to": "nanogranular structure", "width": 1}, {"from": "ua coating", "title": "is consistent with", "to": "non-classical growth mechanism", "width": 1}, {"from": "ua coating", "title": "is made of", "to": "ua", "width": 1}, {"from": "aqua regia", "title": "involves etching with", "to": "surface functionalization", "width": 1}, {"from": "calcium chloride solution", "title": "involves soaking in for", "to": "surface functionalization", "width": 1}, {"from": "mg-doped apatite nanocrystals", "title": "is mineralized with", "to": "hybrid composite", "width": 1}, {"from": "collagenous biomaterial", "title": "can be used as a", "to": "adhesive", "width": 1}, {"from": "collagenous biomaterial", "title": "is a type of", "to": "biomedical materials", "width": 1}, {"from": "collagenous biomaterial", "title": "can be used as a", "to": "cell seeding material", "width": 1}, {"from": "collagenous biomaterial", "title": "can be used as a", "to": "thermoplastic material", "width": 1}, {"from": "adhesive", "title": "fixed at each endpoint", "to": "twisted area", "width": 1}, {"from": "biomedical materials", "title": "suitable for", "to": "bone regeneration applications", "width": 1}, {"from": "biomedical materials", "title": "promotes differentiation into", "to": "bone-like tissues", "width": 1}, {"from": "biomedical materials", "title": "applicable for", "to": "drug delivery", "width": 1}, {"from": "biomedical materials", "title": "effectively enables", "to": "drug encapsulation", "width": 1}, {"from": "biomedical materials", "title": "effectively enables", "to": "drug release", "width": 1}, {"from": "biomedical materials", "title": "exhibits", "to": "low toxicity", "width": 1}, {"from": "boundary conditions (description)", "title": "Spring boundary conditions based on previous research (Alheti et al., 2020) and traction-free boundary conditions are used for some faces.", "to": "boundary conditions (description)", "width": 1}, {"from": "boundary conditions (description)", "title": "This boundary condition is used for some faces.", "to": "contact with rigid sphere representing tooth/claw or falling object.", "width": 1}, {"from": "boundary conditions (description)", "title": "influenced by", "to": "whole bone stiffness", "width": 1}, {"from": "simulation", "title": "Explicit dynamics simulation is used for this simulation.", "to": "dynamics", "width": 1}, {"from": "simulation", "title": "Integrated approach could evolve into new paradigm of materials research,Complement experimental analyses,Start from smallest scales considering electrons and atoms,Reach all the way up to macroscopic scales of entire tissues,Explicitly consider characteristic structural features at each scale", "to": "experiment", "width": 1}, {"from": "simulation", "title": "involves", "to": "greater adhesion strength", "width": 1}, {"from": "simulation", "title": "varies", "to": "accumulated elastic energy", "width": 1}, {"from": "simulation", "title": "captures", "to": "corresponding branches", "width": 1}, {"from": "simulation", "title": "varies", "to": "external work", "width": 1}, {"from": "simulation", "title": "contributes to", "to": "fibril failure", "width": 1}, {"from": "simulation", "title": "controls", "to": "monotonically increasing variable", "width": 1}, {"from": "simulation", "title": "adopts", "to": "scale-invariant modeling", "width": 1}, {"from": "simulation", "title": "includes", "to": "softening behavior", "width": 1}, {"from": "simulation", "title": "researches", "to": "fu-yun zhu", "width": 1}, {"from": "kh560", "title": "contained in", "to": "suspension", "width": 1}, {"from": "aggregates", "title": "mathematically represented as", "to": "graphs", "width": 1}, {"from": "chemical treatments", "title": "involves", "to": "top-down approaches", "width": 1}, {"from": "chemical treatments", "title": "Turns wood blocks/sheets into H\u0026As with preserved natural porous structure using a simple chemical treatment with H2O2, Na2SO3, NaOH, or acetic acid.", "to": "cellulose hydrogels", "width": 1}, {"from": "kcs", "title": "has", "to": "functional groups (-oh, c=o)", "width": 1}, {"from": "kcs", "title": "has", "to": "stratified porous structure", "width": 1}, {"from": "kcs", "title": "has", "to": "uniform mesopores", "width": 1}, {"from": "kcs", "title": "is removed by", "to": "pcbs", "width": 1}, {"from": "kcs", "title": "BET was used to measure the specific surface area of KCS", "to": "bet", "width": 1}, {"from": "kcs", "title": "FTIR was used to examine the functional groups of KCS", "to": "ftir spectroscopy", "width": 1}, {"from": "kcs", "title": "KCS was synthesized by treating crab shell waste with potassium hydroxide", "to": "crab shell waste", "width": 1}, {"from": "kcs", "title": "KCS has the ability to remove p-xylene from aqueous solutions", "to": "p-xylene", "width": 1}, {"from": "pcbs", "title": "undergoes", "to": "adsorption", "width": 1}, {"from": "pcbs", "title": "reaches", "to": "equilibrium capacity", "width": 1}, {"from": "pcbs", "title": "is related to", "to": "initial concentration", "width": 1}, {"from": "pcbs", "title": "is affected by", "to": "removal efficiency", "width": 1}, {"from": "biofabrication technologies", "title": "Paun et al.", "to": "publication", "width": 1}, {"from": "biofabrication technologies", "title": "Can be mimicked", "to": "heterogeneity", "width": 1}, {"from": "biofabrication technologies", "title": "Can be printed", "to": "biomimetic 3d structures", "width": 1}, {"from": "biofabrication technologies", "title": "Can be printed", "to": "morphological features", "width": 1}, {"from": "biofabrication technologies", "title": "Can be controlled", "to": "spatial positioning of cells", "width": 1}, {"from": "biofabrication technologies", "title": "Can be overcome", "to": "traditional 2d cultures", "width": 1}, {"from": "optical imaging techniques", "title": "Explained", "to": "advantages", "width": 1}, {"from": "optical imaging techniques", "title": "Explained", "to": "limitations", "width": 1}, {"from": "optical imaging techniques", "title": "Provided Examples", "to": "potential applications", "width": 1}, {"from": "limitations", "title": "exists in previous work", "to": "origami", "width": 1}, {"from": "limitations", "title": "have", "to": "conventional homogenization-based micromechanical models", "width": 1}, {"from": "potential applications", "title": "have due to unique porous structure", "to": "hierarchical silica capsules", "width": 1}, {"from": "potential applications", "title": "Offer", "to": "biomaterials design", "width": 1}, {"from": "boerneke et al.", "title": "presented", "to": "controllable self-assembly towards rna nanotriangles", "width": 1}, {"from": "boerneke et al.", "title": "presented crystal-structure-guided design of", "to": "rna", "width": 1}, {"from": "rna", "title": "form with at least two hydrogen bonds", "to": "base pairing", "width": 1}, {"from": "rna", "title": "are highly dependent on", "to": "functional rna nanostructures", "width": 1}, {"from": "rna", "title": "can increase the propensity of RNA to assemble", "to": "pathogenic dipeptides", "width": 1}, {"from": "rna", "title": "can contribute to the assembly of", "to": "stress granules", "width": 1}, {"from": "rna", "title": "drugs", "to": "biodegradable polymer scaffolds", "width": 1}, {"from": "tmv", "title": "is influenced by", "to": "ionic strength", "width": 1}, {"from": "tmv", "title": "can self-assemble into", "to": "nanorods", "width": 1}, {"from": "tmv", "title": "can self-assemble into", "to": "nanowires", "width": 1}, {"from": "nanowires", "title": "Parallel-aligned nanowires through bidirectional freezing", "to": "artificial enamel", "width": 1}, {"from": "nanowires", "title": "forms", "to": "biomolecular templates", "width": 1}, {"from": "nanowires", "title": "resulting in", "to": "qds", "width": 1}, {"from": "enr", "title": "are present", "to": "covalent cross-links", "width": 1}, {"from": "enr", "title": "coordinate to six oxygen atoms during curing with zinc acrylate in the presence of FeCl3", "to": "fe3+ metal ions", "width": 1}, {"from": "enr", "title": "are present", "to": "metallosupramolecular cross-links", "width": 1}, {"from": "enr", "title": "allow for", "to": "shape-fixation mechanisms", "width": 1}, {"from": "enr", "title": "can be tuned between 7 and 65 \u00b0C depending on the valencies of zinc acrylate and FeCl3 used", "to": "tg", "width": 1}, {"from": "resilin", "title": "occurs at", "to": "cross-linking", "width": 1}, {"from": "resilin", "title": "has under high frequency conditions", "to": "high resilience", "width": 1}, {"from": "resilin", "title": "is found in", "to": "insect cuticle regions", "width": 1}, {"from": "resilin", "title": "synthesized through", "to": "recombinant elastomeric protein", "width": 1}, {"from": "resilin", "title": "draws inspiration from", "to": "polypeptide structure", "width": 1}, {"from": "synthetic rubber materials", "title": "are developed through", "to": "resilin-inspired materials", "width": 1}, {"from": "synthetic rubber materials", "title": "introduce sacrificial links that dissipate stress", "to": "reversible bonds", "width": 1}, {"from": "vpr", "title": "results in", "to": "reinforcement", "width": 1}, {"from": "vpr", "title": "are introduced to generate transient pyridine-Zn2+-pyridine cross-links", "to": "zn2+ cations", "width": 1}, {"from": "covalent cross-links", "title": "are", "to": "peg-pu hybrids", "width": 1}, {"from": "reversible bonds", "title": "Applies to", "to": "bell model", "width": 1}, {"from": "reinforcement", "title": "denotes fibers with a length greater than a critical value that provide mechanical strength through fiber reinforcement", "to": "long fibers", "width": 1}, {"from": "reinforcement", "title": "denotes fibers with a length less than a critical value that provide mechanical strength through fiber reinforcement", "to": "short fibers", "width": 1}, {"from": "betamate 1044", "title": "Applies to", "to": "cohesiveinterface", "width": 1}, {"from": "betamate 1044", "title": "Applies to", "to": "helmholtzfreeenergy", "width": 1}, {"from": "betamate 1044", "title": "Applies to", "to": "johnsoncookconstitutivemodel", "width": 1}, {"from": "cohesiveinterface", "title": "Applies to", "to": "cohesiveinterface", "width": 1}, {"from": "epoxyresin", "title": "Does not apply to", "to": "johnsoncookconstitutivemodel", "width": 1}, {"from": "helmholtzfreeenergy", "title": "Applies to", "to": "helmholtzfreeenergy", "width": 1}, {"from": "johnsoncookconstitutivemodel", "title": "Applies to", "to": "constitutivemodel", "width": 1}, {"from": "e", "title": "defined by factor", "to": "q", "width": 1}, {"from": "e", "title": "is a type of", "to": "d", "width": 1}, {"from": "e", "title": "is connected to", "to": "f", "width": 1}, {"from": "e", "title": "less than", "to": "rhamphotheca region", "width": 1}, {"from": "oscillation amplitude", "title": "describes number of cycles required for decay", "to": "q", "width": 1}, {"from": "q", "title": "is connected to", "to": "p", "width": 1}, {"from": "q", "title": "Used to divide", "to": "weighting coefficients", "width": 1}, {"from": "collagen composite materials", "title": "Collagen-based composites are a specific type of collagen-based material.", "to": "collagen-based materials", "width": 1}, {"from": "collagen microspheres", "title": "Collagen-based microspheres are a specific type of collagen-based material.", "to": "collagen microspheres", "width": 1}, {"from": "collagen microspheres", "title": "Allows for time-controlled delivery of incorporated proteins or drugs triggered by naturally occurring enzymes through degradation rate tunability", "to": "chemical cross-linking", "width": 1}, {"from": "collagen microspheres", "title": "Size control based on", "to": "collagen molecular weight", "width": 1}, {"from": "collagen microspheres", "title": "Allows for smaller spheres with higher stability and sterilization capabilities", "to": "denaturation", "width": 1}, {"from": "collagen microspheres", "title": "Prepared using", "to": "emulsifying methods", "width": 1}, {"from": "collagen microspheres", "title": "Degradate into non-cytotoxic monomers at", "to": "neutral ph", "width": 1}, {"from": "collagen microspheres", "title": "Enhance within bone-filling materials", "to": "osteoblast growth", "width": 1}, {"from": "collagen microspheres", "title": "Formed through", "to": "phase separation", "width": 1}, {"from": "collagen-based materials", "title": "Collagen-based biomaterials is a more general term that encompasses both constructs and composites.", "to": "collagen-based materials", "width": 1}, {"from": "collagen-based materials", "title": "Improved By Modification", "to": "resistance to enzymes", "width": 1}, {"from": "collagen-based materials", "title": "Improved By Modification", "to": "thermostability", "width": 1}, {"from": "manufacturing methods", "title": "generate", "to": "chemical interphase", "width": 1}, {"from": "biomimetic surfaces", "title": "Important for biomimetic surface engineering applications", "to": "surface engineering applications", "width": 1}, {"from": "biomimetic surfaces", "title": "Minimize thermal damage effects during biomimetic surface engineering", "to": "femtosecond lasers", "width": 1}, {"from": "biomimetic surfaces", "title": "Allow for engineering of biomimetic surfaces", "to": "laser-based surface processing methods", "width": 1}, {"from": "emerging laser processing techniques", "title": "Includes temporally shaped ultrafast pulses and filamentation effects produced by fs lasers", "to": "laser-based surface processing methods", "width": 1}, {"from": "femtosecond lasers", "title": 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"width": 1}, {"from": "spikes", "title": "evolve into supra-wavelength protruding structures upon melt solidification", "to": "hydrothermal waves", "width": 1}, {"from": "spikes", "title": "resulting from debris clusters shielding underlying material", "to": "local protrusions", "width": 1}, {"from": "spikes", "title": "shield underlying material", "to": "nanoscale particle clusters", "width": 1}, {"from": "spikes", "title": "homogeneously redistributed across scanned area", "to": "nanoscale particles", "width": 1}, {"from": "spikes", "title": "composed of", "to": "non-ablated steel", "width": 1}, {"from": "spikes", "title": "do not alter", "to": "polycrystalline structure", "width": 1}, {"from": "spikes", "title": "gradually diminish", "to": "pseudoripples", "width": 1}, {"from": "spikes", "title": "composed of", "to": "redeposited nanops", "width": 1}, {"from": "spikes", "title": "uniformly cover surface at medium accumulated fluences", "to": "smaller spikes", "width": 1}, {"from": "spikes", "title": "occurs in ablative regime,further reinforced for increasing numbers of overscans", "to": "spike formation", "width": 1}, {"from": "nanoscale particles", "title": "can be arranged through self-assembly using noncovalent bonding to create ordered structures with unique properties,can be arranged through self-assembly using noncovalent bonding to create ordered structures with unique properties", "to": "desired patterns", "width": 1}, {"from": "bioreactors", "title": "requires optimization", "to": "development of functional tissues", "width": 1}, {"from": "cell-material interactions", "title": "requires optimization", "to": "development of functional tissues", "width": 1}, {"from": "connections between tissues", "title": "should be considered", "to": "development of functional tissues", "width": 1}, {"from": "localized density", "title": "is included", "to": "multicellular crosstalk", "width": 1}, {"from": "mechanical stimulation", "title": "is included", "to": 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"reduced graphene oxide", "title": "can be used as", "to": "flexible electrode", "width": 1}, {"from": "reduced graphene oxide", "title": "formed through reduction", "to": "textile yarn", "width": 1}, {"from": "starch-based hydrogels", "title": "used for", "to": "nanocomposite hydrogels", "width": 1}, {"from": "nanocomposite hydrogels", "title": "are protonated at pH values lower than their pKa values,are deprotonated at pH values above their pKa values", "to": "carboxylate groups", "width": 1}, {"from": "nanocomposite hydrogels", "title": "exhibit", "to": "strong electrostatic repulsion", "width": 1}, {"from": "nanocomposite hydrogels", "title": "are referred to as", "to": "reinforced hydrogels", "width": 1}, {"from": "nanocomposite hydrogels", "title": "is", "to": "adhesive strength", "width": 1}, {"from": "nanocomposite hydrogels", "title": "is", "to": "ha-grafted-da", "width": 1}, {"from": "nanocomposite hydrogels", "title": "is", "to": "rgo synthesized using an h2o2/hrp system", 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"to": "organic phase", "width": 1}, {"from": "biogenic calcite", "title": "includes", "to": "prismatic single crystals", "width": 1}, {"from": "biogenic calcite", "title": "includes", "to": "sea urchin spines", "width": 1}, {"from": "biogenic calcite", "title": "developed based on", "to": "synthetic calcite-based composite crystals", "width": 1}, {"from": "calcite crystals", "title": "performed on", "to": "ebsd measurements", "width": 1}, {"from": "calcite crystals", "title": "varying within", "to": "unique microstructure of sea urchin teeth", "width": 1}, {"from": "calcite crystals", "title": "exhibit surface changes and edge rounding at concentrations of", "to": "ap7", "width": 1}, {"from": "calcite crystals", "title": "grow on", "to": "kevlar threads", "width": 1}, {"from": "micron-scale lamellae", "title": "consists of", "to": "prismatic single crystals", "width": 1}, {"from": "sea urchin spines", "title": "Mimics Structure of", "to": "functionally graded concrete (fgc)", "width": 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