摘要：Inspired by the microstructure of gecko toes, a drivable bionic gecko toe adhesion surface with double-layer structure was designed and fabricated. The driving ability is derived from the volume shrinkage of the dehydrated hydrogel after the driving hydrogel layer is irradiated by near-infrared light (808 nm) (the temperature of the single-layer hydrogel can be increased from 17.9 degrees C to 107 degrees C within 30s, and the curling angle can be curled by 0 degrees -180 degrees, similar to the folded state.), and another layer with a microstructure similar to gecko toes can withstand a maximum shear force of 22.4N/cm-2. The different properties of the two layers are combined together to achieve a reversible transition of adhesion/desorption similar to the gecko walking process. The double-layer structure of the drivable bionic gecko toe adhesion surface was structurally optimized to prepare a four-arm gripper that could grasp/release only by unilateral irradiation. This bilayer-structured bionic gecko toe adhesion surface has great design potential, and in the future, it is hoped that it can provide insights into the preparation of large-actuated remote-controlled robots and fast-actuated soft robots.

关键字：Gecko; dry adhesives; Infrared -responsive; Hydrogel; PDMS; Flexible arm gripper; Gradient

ISSN号：2542-5293

卷、期、页：卷29

发表日期：2022-12-01

影响因子：9.297900

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,ESCI（新兴资源引文索引）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：MATERIALS TODAY PHYSICS

参与作者：Hu, Travis Shihao,Contreras, Jordan A.,曾宏波

通讯作者：罗小杭,董潇潇,兰秀平,丁兰,李嘉鹏,倪慧勤

第一作者：赵弘,徐泉

论文类型：期刊论文

论文概要：罗小杭,董潇潇,赵弘,Hu, Travis Shihao,兰秀平,丁兰,李嘉鹏,倪慧勤,Contreras, Jordan A.,曾宏波,徐泉，Near-infrared responsive gecko-inspired flexible arm gripper，MATERIALS TODAY PHYSICS，2022，卷29

论文题目：Near-infrared responsive gecko-inspired flexible arm gripper