title: Bioinspired Smart Actuator Based on Graphene Oxide-Polymer Hybrid Hydrogels.
abstract: Rapid response and strong mechanical properties are desired for smart materials used in soft actuators. A bioinspired hybrid hydrogel actuator was designed and prepared by series combination of three trunks of tough polymer-clay hydrogels to accomplish the comprehensive actuation of "extension-grasp-retraction" like a fishing rod. The hydrogels with thermo-creep and thermo-shrinking features were successively irradiated by near-infrared (NIR) to execute extension and retraction, respectively. The GO in the hydrogels absorbed the NIR energy and transformed it into thermo-energy rapidly and effectively. The hydrogel with adhesion or magnetic force was adopted as the "hook" of the hybrid hydrogel actuator for grasping object. The hook of the hybrid hydrogel actuator was replaceable according to applications, even with functional materials other than hydrogels. This study provides an innovative concept to explore new soft actuators through combining response hydrogels and programming the same stimulus.
authors.affiliation: Research Institute of Materials Science and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.affiliation: Research Institute of Materials Science and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Jiahe
authors.initials: J
authors.lastname: Huang
authors.affiliation: Research Institute of Materials Science and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Yiqing
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Research Institute of Materials Science and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Enzhong
authors.initials: E
authors.lastname: Zhang
authors.affiliation: Research Institute of Materials Science and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Weixiang
authors.initials: W
authors.lastname: Sun
authors.affiliation: Research Institute of Materials Science and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Tong
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry; D001672:Biocompatible Materials / Q000737:chemistry*; D002448:Cell Adhesion / Q000187:drug effects; D000077215:Clay; D006108:Graphite / Q000737:chemistry*; D006801:Humans; D020100:Hydrogels / Q000737:chemistry*; D008280:Magnetics; D010087:Oxides / Q000737:chemistry; D011108:Polymers / Q000737:chemistry
chemical_list: D000538:Aluminum Silicates; D001672:Biocompatible Materials; D020100:Hydrogels; D010087:Oxides; D011108:Polymers; D006108:Graphite; D000077215:Clay
keywords: actuator; bioinspired material; graphene oxide; hybrid hydrogel; response hydrogel combination