Gecko‐Inspired Controllable Adhesive Structures Applied to Micromanipulation
Identifieur interne : 008209 ( Main/Merge ); précédent : 008208; suivant : 008210Gecko‐Inspired Controllable Adhesive Structures Applied to Micromanipulation
Auteurs : Yi It Mengüç [États-Unis] ; Sang Yoon Yang [États-Unis] ; Seok Kim [États-Unis] ; John A. Rogers [États-Unis] ; Metin Sitti [États-Unis]Source :
- Advanced Functional Materials [ 1616-301X ] ; 2012-03-21.
Descripteurs français
English descriptors
- KwdEn :
- Acta biomater, Adhesion, Adhesion strength, Adhesive, Adhesive force, Adhesive force ratio, Adhesive forces, Aksak, Angled, Angled micropillars, Angled pillars, Appl, Attachment strength, Compression tension force, Compressive, Compressive direction, Compressive displacement, Contact area, Contact process, Critical cases, Data point, Donor substrate, Edge contact, Elastomer, Error bars, First part, Flat tips, Fragile parts, Full paper, Funct, Gecko, Glass slide, Gmbh, High speed, Interface materials, Intermolecular forces, Jeong, Kgaa, Langmuir, Lateral displacement, Lett, Linear stage, Manipulator, Mater, Maximum force, Maximum force values, Mechanical instability, Micropillar, Micropillar profile, Micropillars, Optimal speed, Part release, Phys, Pillar, Pillar micromanipulator, Placement control, Polymer, Proc, Receiver substrate, Release state, Release states, Retraction, Second part, Sharper switch, Shear displacement, Shear displacement control, Shear strength, Side view, Silicon, Silicon microplatelet, Silicon microplatelets, Silicon wafer, Single structure, Sitti, Solid lines, Surface viscoelasticity, Verlag, Verlag gmbh, Vertical axis, Vertical compression, Vertical displacement, Vertical stage, Video, Viscoelastic effects, Visual feedback, Waals forces, Weinheim.
- Teeft :
- Acta biomater, Adhesion, Adhesion strength, Adhesive, Adhesive force, Adhesive force ratio, Adhesive forces, Aksak, Angled, Angled micropillars, Angled pillars, Appl, Attachment strength, Compression tension force, Compressive, Compressive direction, Compressive displacement, Contact area, Contact process, Critical cases, Data point, Donor substrate, Edge contact, Elastomer, Error bars, First part, Flat tips, Fragile parts, Full paper, Funct, Gecko, Glass slide, Gmbh, High speed, Interface materials, Intermolecular forces, Jeong, Kgaa, Langmuir, Lateral displacement, Lett, Linear stage, Manipulator, Mater, Maximum force, Maximum force values, Mechanical instability, Micropillar, Micropillar profile, Micropillars, Optimal speed, Part release, Phys, Pillar, Pillar micromanipulator, Placement control, Polymer, Proc, Receiver substrate, Release state, Release states, Retraction, Second part, Sharper switch, Shear displacement, Shear displacement control, Shear strength, Side view, Silicon, Silicon microplatelet, Silicon microplatelets, Silicon wafer, Single structure, Sitti, Solid lines, Surface viscoelasticity, Verlag, Verlag gmbh, Vertical axis, Vertical compression, Vertical displacement, Vertical stage, Video, Viscoelastic effects, Visual feedback, Waals forces, Weinheim.
Abstract
Gecko‐inspired angled elastomer micropillars with flat or round tip endings are presented as compliant pick‐and‐place micromanipulators. The pillars are 35 μm in diameter, 90 μm tall, and angled at an inclination of 20°. By gently pressing the tip of a pillar to a part, the pillar adheres to it through intermolecular forces. Next, by retracting quickly, the part is picked from a given donor substrate. During transferring, the adhesion between the pillar and the part is high enough to withstand disturbances due to external forces or the weight of the part. During release of the part onto a receiver substrate, the contact area of the pillar to the part is drastically reduced by controlled vertical or shear displacement, which results in reduced adhesive forces. The maximum repeatable ratio of pick‐to‐release adhesive forces is measured as 39 to 1. It is found that a flat tip shape and shear displacement control provide a higher pick‐to‐release adhesion ratio than a round tip and vertical displacement control, respectively. A model of forces to serve as a framework for the operation of this micromanipulator is presented. Finally, demonstrations of pick‐and‐place manipulation of micrometer‐scale silicon microplatelets and a centimeter‐scale glass cover slip serve as proofs of the concept. The compliant polymer micropillars are safe for use with fragile parts, and, due to exploiting intermolecular forces, could be effective on most materials and in air, vacuum, and liquid environments.
Url:
DOI: 10.1002/adfm.201101783
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Rogers</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Materials Science and Engineering, University of Illinois at Urbana‐Champaign, Urbana, IL 61801</wicri:regionArea><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Sitti, Metin" sort="Sitti, Metin" uniqKey="Sitti M" first="Metin" last="Sitti">Metin Sitti</name><affiliation wicri:level="4"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213</wicri:regionArea><placeName><region type="state">Pennsylvanie</region><settlement type="city">Pittsburgh</settlement></placeName><orgName type="university">Université Carnegie-Mellon</orgName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">États-Unis</country></affiliation><affiliation wicri:level="4"><country xml:lang="fr" wicri:curation="lc">États-Unis</country><wicri:regionArea>Correspondence address: Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213</wicri:regionArea><placeName><region type="state">Pennsylvanie</region><settlement type="city">Pittsburgh</settlement></placeName><orgName type="university">Université Carnegie-Mellon</orgName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Advanced Functional Materials</title><title level="j" type="alt">ADVANCED FUNCTIONAL MATERIALS</title><idno type="ISSN">1616-301X</idno><idno type="eISSN">1616-3028</idno><imprint><biblScope unit="vol">22</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="1246">1246</biblScope><biblScope unit="page" to="1254">1254</biblScope><biblScope unit="page-count">9</biblScope><publisher>WILEY‐VCH Verlag</publisher><pubPlace>Weinheim</pubPlace><date type="published" when="2012-03-21">2012-03-21</date></imprint><idno type="ISSN">1616-301X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1616-301X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acta biomater</term><term>Adhesion</term><term>Adhesion strength</term><term>Adhesive</term><term>Adhesive force</term><term>Adhesive force ratio</term><term>Adhesive forces</term><term>Aksak</term><term>Angled</term><term>Angled micropillars</term><term>Angled pillars</term><term>Appl</term><term>Attachment strength</term><term>Compression tension force</term><term>Compressive</term><term>Compressive direction</term><term>Compressive displacement</term><term>Contact area</term><term>Contact process</term><term>Critical cases</term><term>Data point</term><term>Donor substrate</term><term>Edge contact</term><term>Elastomer</term><term>Error bars</term><term>First part</term><term>Flat tips</term><term>Fragile parts</term><term>Full paper</term><term>Funct</term><term>Gecko</term><term>Glass slide</term><term>Gmbh</term><term>High speed</term><term>Interface materials</term><term>Intermolecular forces</term><term>Jeong</term><term>Kgaa</term><term>Langmuir</term><term>Lateral displacement</term><term>Lett</term><term>Linear stage</term><term>Manipulator</term><term>Mater</term><term>Maximum force</term><term>Maximum force values</term><term>Mechanical instability</term><term>Micropillar</term><term>Micropillar profile</term><term>Micropillars</term><term>Optimal speed</term><term>Part release</term><term>Phys</term><term>Pillar</term><term>Pillar micromanipulator</term><term>Placement control</term><term>Polymer</term><term>Proc</term><term>Receiver substrate</term><term>Release state</term><term>Release states</term><term>Retraction</term><term>Second part</term><term>Sharper switch</term><term>Shear displacement</term><term>Shear displacement control</term><term>Shear strength</term><term>Side view</term><term>Silicon</term><term>Silicon microplatelet</term><term>Silicon microplatelets</term><term>Silicon wafer</term><term>Single structure</term><term>Sitti</term><term>Solid lines</term><term>Surface viscoelasticity</term><term>Verlag</term><term>Verlag gmbh</term><term>Vertical axis</term><term>Vertical compression</term><term>Vertical displacement</term><term>Vertical stage</term><term>Video</term><term>Viscoelastic effects</term><term>Visual feedback</term><term>Waals forces</term><term>Weinheim</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acta biomater</term><term>Adhesion</term><term>Adhesion strength</term><term>Adhesive</term><term>Adhesive force</term><term>Adhesive force ratio</term><term>Adhesive forces</term><term>Aksak</term><term>Angled</term><term>Angled micropillars</term><term>Angled pillars</term><term>Appl</term><term>Attachment strength</term><term>Compression tension force</term><term>Compressive</term><term>Compressive direction</term><term>Compressive displacement</term><term>Contact area</term><term>Contact process</term><term>Critical cases</term><term>Data point</term><term>Donor substrate</term><term>Edge contact</term><term>Elastomer</term><term>Error bars</term><term>First part</term><term>Flat tips</term><term>Fragile parts</term><term>Full paper</term><term>Funct</term><term>Gecko</term><term>Glass slide</term><term>Gmbh</term><term>High speed</term><term>Interface materials</term><term>Intermolecular forces</term><term>Jeong</term><term>Kgaa</term><term>Langmuir</term><term>Lateral displacement</term><term>Lett</term><term>Linear stage</term><term>Manipulator</term><term>Mater</term><term>Maximum force</term><term>Maximum force values</term><term>Mechanical instability</term><term>Micropillar</term><term>Micropillar profile</term><term>Micropillars</term><term>Optimal speed</term><term>Part release</term><term>Phys</term><term>Pillar</term><term>Pillar micromanipulator</term><term>Placement control</term><term>Polymer</term><term>Proc</term><term>Receiver substrate</term><term>Release state</term><term>Release states</term><term>Retraction</term><term>Second part</term><term>Sharper switch</term><term>Shear displacement</term><term>Shear displacement control</term><term>Shear strength</term><term>Side view</term><term>Silicon</term><term>Silicon microplatelet</term><term>Silicon microplatelets</term><term>Silicon wafer</term><term>Single structure</term><term>Sitti</term><term>Solid lines</term><term>Surface viscoelasticity</term><term>Verlag</term><term>Verlag gmbh</term><term>Vertical axis</term><term>Vertical compression</term><term>Vertical displacement</term><term>Vertical stage</term><term>Video</term><term>Viscoelastic effects</term><term>Visual feedback</term><term>Waals forces</term><term>Weinheim</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Adhésif</term><term>Polymère</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Gecko‐inspired angled elastomer micropillars with flat or round tip endings are presented as compliant pick‐and‐place micromanipulators. The pillars are 35 μm in diameter, 90 μm tall, and angled at an inclination of 20°. By gently pressing the tip of a pillar to a part, the pillar adheres to it through intermolecular forces. Next, by retracting quickly, the part is picked from a given donor substrate. During transferring, the adhesion between the pillar and the part is high enough to withstand disturbances due to external forces or the weight of the part. During release of the part onto a receiver substrate, the contact area of the pillar to the part is drastically reduced by controlled vertical or shear displacement, which results in reduced adhesive forces. The maximum repeatable ratio of pick‐to‐release adhesive forces is measured as 39 to 1. It is found that a flat tip shape and shear displacement control provide a higher pick‐to‐release adhesion ratio than a round tip and vertical displacement control, respectively. A model of forces to serve as a framework for the operation of this micromanipulator is presented. Finally, demonstrations of pick‐and‐place manipulation of micrometer‐scale silicon microplatelets and a centimeter‐scale glass cover slip serve as proofs of the concept. The compliant polymer micropillars are safe for use with fragile parts, and, due to exploiting intermolecular forces, could be effective on most materials and in air, vacuum, and liquid environments.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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