The Experts below are selected from a list of 198 Experts worldwide ranked by ideXlab platform
Winston H Elliott - One of the best experts on this subject based on the ideXlab platform.
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reverse adhesion of a gecko inspired Synthetic Adhesive switched by an ion exchange polymer metal composite actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
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Reverse Adhesion of a Gecko-Inspired Synthetic Adhesive Switched by an Ion-Exchange Polymer–Metal Composite Actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
Mark R. Cutkosky - One of the best experts on this subject based on the ideXlab platform.
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stress distribution and contact area measurements of a gecko toe using a high resolution tactile sensor
Bioinspiration & Biomimetics, 2015Co-Authors: Eric V. Eason, Elliot W. Hawkes, Marc Windheim, David L. Christensen, Thomas Libby, Mark R. CutkoskyAbstract:The Adhesive systems of geckos have been widely studied and have been a great source of bioinspiration. Load-sharing (i.e. preventing stress concentrations through equal distribution of loads) is necessary to maximize the performance of an Adhesive system, but it is not known to what extent load-sharing occurs in gecko toes. In this paper, we present in vivo measurements of the stress distribution and contact area on the toes of a tokay gecko (Gekko gecko) using a custom tactile sensor with 100 μm spatial resolution. We found that the stress distributions were nonuniform, with large variations in stress between and within lamellae, suggesting that load-sharing in the tokay gecko is uneven. These results may be relevant to the understanding of gecko morphology and the design of improved Synthetic Adhesive systems.
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Living Machines - Adhesive Stress Distribution Measurement on a Gecko
Biomimetic and Biohybrid Systems, 2014Co-Authors: Eric V. Eason, Elliot W. Hawkes, Marc Windheim, David L. Christensen, Thomas Libby, Mark R. CutkoskyAbstract:Gecko adhesion has inspired climbing robots and Synthetic Adhesive grippers. Distributing loads between patches of Adhesive is important for maximum performance in gecko-inspired devices, but it is unknown how the gecko distributes loads over its toes. We report in vivo measurements of stress distributions on gecko toes. The results are significantly non-uniform.
Yu Cheng - One of the best experts on this subject based on the ideXlab platform.
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reverse adhesion of a gecko inspired Synthetic Adhesive switched by an ion exchange polymer metal composite actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
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Reverse Adhesion of a Gecko-Inspired Synthetic Adhesive Switched by an Ion-Exchange Polymer–Metal Composite Actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
Liming Zhou - One of the best experts on this subject based on the ideXlab platform.
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reverse adhesion of a gecko inspired Synthetic Adhesive switched by an ion exchange polymer metal composite actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
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Reverse Adhesion of a Gecko-Inspired Synthetic Adhesive Switched by an Ion-Exchange Polymer–Metal Composite Actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
Shaoming Fang - One of the best experts on this subject based on the ideXlab platform.
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reverse adhesion of a gecko inspired Synthetic Adhesive switched by an ion exchange polymer metal composite actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
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Reverse Adhesion of a Gecko-Inspired Synthetic Adhesive Switched by an Ion-Exchange Polymer–Metal Composite Actuator
ACS Applied Materials & Interfaces, 2015Co-Authors: Yu Cheng, Hao Zhang, Liming Zhou, Shaoming Fang, Winston H ElliottAbstract:Inspired by how geckos abduct, rotate, and adduct their setal foot toes to adhere to different surfaces, we have developed an artificial muscle material called ion-exchange polymer–metal composite (IPMC), which, as a Synthetic Adhesive, is capable of changing its adhesion properties. The Synthetic Adhesive was cast from a Si template through a sticky colloid precursor of poly(methylvinylsiloxane) (PMVS). The PMVS array of setal micropillars had a high density of pillars (3.8 × 103 pillars/mm2) with a mean diameter of 3 μm and a pore thickness of 10 μm. A graphene oxide monolayer containing Ag globular nanoparticles (GO/Ag NPs) with diameters of 5–30 nm was fabricated and doped in an ion-exchanging Nafion membrane to improve its carrier transfer, water-saving, and ion-exchange capabilities, which thus enhanced the electromechanical response of IPMC. After being attached to PMVS micropillars, IPMC was actuated by square wave inputs at 1.0, 1.5, or 2.0 V to bend back and forth, driving the micropillars to ac...
