Son Hyegyo, Park Yunha, Na Youngjin, Yoon ChangKyu
Department of Mechanical Systems Engineering, Sookmyung Women's University, Seoul 04310, Korea.
Institute of Advanced Materials and Systems, Sookmyung Women's University, Seoul 04310, Korea.
Polymers (Basel). 2022 Oct 9;14(19):4235. doi: 10.3390/polym14194235.
Time-dependent shape-transferable soft robots are important for various intelligent applications in flexible electronics and bionics. Four-dimensional (4D) shape changes can offer versatile functional advantages during operations to soft robots that respond to external environmental stimuli, including heat, pH, light, electric, or pneumatic triggers. This review investigates the current advances in multiscale soft robots that can display 4D shape transformations. This review first focuses on material selection to demonstrate 4D origami-driven shape transformations. Second, this review investigates versatile fabrication strategies to form the 4D mechanical structures of soft robots. Third, this review surveys the folding, rolling, bending, and wrinkling mechanisms of soft robots during operation. Fourth, this review highlights the diverse applications of 4D origami-driven soft robots in actuators, sensors, and bionics. Finally, perspectives on future directions and challenges in the development of intelligent soft robots in real operational environments are discussed.
随时间变化的形状可转移软机器人对于柔性电子学和仿生学中的各种智能应用至关重要。四维（4D）形状变化可为响应外部环境刺激（包括热、pH值、光、电或气动触发）的软机器人在操作过程中提供多种功能优势。本综述研究了能够呈现4D形状变换的多尺度软机器人的当前进展。本综述首先关注材料选择，以展示4D折纸驱动的形状变换。其次，本综述研究了形成软机器人4D机械结构的多种制造策略。第三，本综述探讨了软机器人在操作过程中的折叠、滚动、弯曲和起皱机制。第四，本综述强调了4D折纸驱动的软机器人在致动器、传感器和仿生学中的多样应用。最后，讨论了在实际操作环境中智能软机器人开发的未来方向和挑战。
