Xiangyu Teng,Shengkun Xu,Xuehao Feng,Zhizheng Gao,Zhixing Ge,Bentao Zou,Wenguang Yang
The movement patterns of diverse organisms inspire the design of flexible actuators. We hypothesized that mimicking biological structures could endow soft robots with versatile functions. In this research, we engineered a biomimetic light - driven swimming soft robot. By emulating the mechanics of boat paddles and elephant trunks, we developed a flexible paddle and a dexterous gripper. This enables the robot to effectively grasp and transport small objects. We further hypothesized that introducing molybdenum disulfide (MoS₂) into hydrogels could render them photoresponsive. We successfully created a temperature sensitive, photoresponsive composite hydrogel. Its volume can be precisely controlled through light exposure, mimicking the contraction and relaxation of muscles. The paddling motion and gripping functions of the bionic gripper are achieved by modulating the irradiation with Near-Infrared (NIR) light. This study offers significant insights into the development of light-driven soft robotic systems.
Liu Yang,Jiaqi Miao,Gen Li,Hao Ren,Tieshan Zhang,Dong Guo,Yifeng Tang,Wanfeng Shang,Yajing Shen
Recently, insect-scale soft robots have received increasing attentions for diverse applications owing to their ability to access hard-to-reach areas. However, most of them are composed of non-degradable materials like PDMS and silicone rubbers, and such chemical inertness may become an obstacle for future clinical applications where tunable material properties or degradation abilities are required. Here, we present a small-scale soft robot from a magnetic gelatin hydrogel, whose mechanical properties can be easily tuned through one-step Hofmeister effected-assisted reaction. Moreover, the robot is designed with insect claw-like legged structure, allowing it to perform grasping and cargo transportation tasks as its non-degradable counterparts. The degradation and controlled delivery ability of the robot are also demonstrated to show the advantages of magnetic hydrogels over non-degradable polymers. Our study provides an alternative for the tunable and degradable millirobot construction with an effective manipulation ability and promotes the applications of millirobot in biomedical sceneries.
危险品化学品经营许可证（带存储）