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作 者:Qing-Li Zhu Han-Lei Cheng Wei-Xuan Liu Yin-Bin Xiao Xin-Lei Wu Josef Breu Wei Hong Zhi-Jian Wang Qiang Zheng Zi-Liang Wu
机构地区:[1]Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou,310058,China [2]Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China [3]Bavarian Polymer Institute and Department of Chemistry,University of Bayreuth,Universitätsstrasse 30,95440,Bayreuth,Germany [4]Institute for Chemical Reaction Design and Discovery,Hokkaido University,Sapporo,001-0021,Japan
出 处:《Chinese Journal of Polymer Science》2025年第4期548-555,共8页高分子科学(英文版)
基 金:supported by the National Natural Science Foundation of China(Nos.52325302 and 52173012);Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(No.2022SZ-FR005)。
摘 要:Achieving continuous motions typically requires dynamic external stimuli for cyclic deformation,or crafted geometries with intricate modules to form a self-regulated feedback loop upon static stimulation.It is still a grand challenge to realize self-sustained motion in soft robots subject to unchanging environment,without complex geometry or a control module.In this work,we report soft robots based on an anisotropic cylindrical hydrogel showing self-regulated,continuous rolling motions under constant light irradiation.The robots are animated by mirror-symmetry-breaking induced by photothermal strain gradient.The self-sustained motion is attributed to the fast and reversible deformation of the gel and the autonomous refresh of the irradiated region during the rolling motion.The hydrogel robots can reach a rolling speed of 1.27 mm·s^(-1)on a horizonal surface and even climb a ramp of 18°at a speed of 0.57 mm·s^(-1)in an aqueous environment.Furthermore,the hydrogel robots can overcome an obstacle,with rolling direction controllable through irradiation angle of the light and local irradiation on selective regions.This work suggests a facile strategy to develop hydrogel robots and may provide unforeseen inspirations for the design of self-regulated soft robots by using other intelligent materials.
关 键 词:Self-sustained motions Light-driven ROLLING Anisotropic hydrogels Soft robots
分 类 号:TP242[自动化与计算机技术—检测技术与自动化装置]
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