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Dual-responsive jumping actuators by light and humidity
Journal of Materials Chemistry A ( IF 11.9 ) Pub Date : 2022-11-18 , DOI: 10.1039/d2ta07339k
Jingjing Li, Meilin Wang, Zhanpeng Cui, Shiyong Liu, Danyang Feng, Guangkai Mei, Rui Zhang, Baigang An, Dong Qian, Xiang Zhou, Zunfeng Liu

Development of a multiresponsive miniaturized soft robot that can jump in different scenarios is highly desirable. This requires the actuator to simultaneously realize a large bending angle, a fast response, and a high actuation force under multiple stimuli to overcome its own weight. The difficulty lies in matching the material mechanical properties, response capacity, and interfacial adhesion of the different responsive layers. In this work, by mimicking the makeup application process, we designed a synergistic actuator containing a photothermal expansion layer, an interfacial adhesion layer, and a moisture-responsive layer. Jumping actuation was achieved under near-infrared (NIR) light or moisture, where exceptionally high bending angle and bending speed were achieved when normalized to the thickness and temperature change. Inspired by frog jumping, direction-controlled jumping was realized by an asymmetric structural design. This work provides a new design strategy for miniaturized soft robots, sensors, and intelligent equipment.

中文翻译:

光和湿度的双响应跳跃致动器

非常需要开发一种可以在不同场景中跳跃的多响应微型软体机器人。这要求执行器在多重刺激下同时实现大弯曲角度、快速响应和高驱动力以克服自身重量。难点在于匹配不同响应层的材料力学性能、响应能力和界面粘附力。在这项工作中,通过模仿化妆应用过程,我们设计了一个包含光热膨胀层、界面粘附层和湿度响应层的协同致动器。跳跃驱动是在近红外 (NIR) 光或湿气下实现的,当归一化到厚度和温度变化时,可实现异常高的弯曲角度和弯曲速度。受青蛙跳跃的启发,通过非对称结构设计实现方向控制跳跃。这项工作为小型化软体机器人、传感器和智能设备提供了一种新的设计策略。
更新日期:2022-11-18
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