文献类型：期刊文献

英文题名：Bioinspired Self-Resettable Hydrogel Actuators Powered by a Chemical Fuel

作者：Xu, Hao[1];Bai, Shengyu[1];Gu, Guanyao[1];Gao, Yuliang[1];Sun, Xun[2];Guo, Xuhong[1];Xuan, Fuzhen[3];Wang, Yiming[1,3]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Guizhou Aerosp Inst Measuring & Testing Technol, Guiyang 550009, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai 200237, Peoples R China

年份：2022

卷号：14

期号：38

起止页码：43825

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20224112857165);WOS:【SCI-EXPANDED(收录号:WOS:000859271900001)】；

基金：The authors thank the NSFC (Grant 21908061) , "Chenguang Program" supported by Shangha i Education Development Foundation and Shanghai Municipal Education Commission (20CG37) , Natural Science Foundation of Shanghai (22ZR1417700) , and the ECUST Innovation Program for financial support.

语种：英文

外文关键词：hydrogels; bioinspired actuators; smart materials; chemical fuels; out-of-equilibrium systems

摘要：The movements of soft living tissues, such as muscle, have sparked a strong interest in the design of hydrogel actuators; however, so far, typical manmade examples still lag behind their biological counterparts, which usually function under nonequilibrium conditions through the consumption of highenergy biomolecules and show highly autonomous behaviors. Here, we report on self-resettable hydrogel actuators that are powered by a chemical fuel and can spontaneously return to their original states over time once the fuels are depleted. Self-resettable actuation originates from a chemical fuel-mediated transient change in the hydrophilicity of the hydrogel networks. The actuation extent and duration can be programmed by the fuel levels, and the selfresettable actuation process is highly recyclable through refueling. Furthermore, various proof-of-concept autonomous soft robots are created, resembling the movements of soft-bodied creatures in nature. This work may serve as a starting point for the development of lifelike soft robots with autonomous behaviors.