Light-triggered multi-joint microactuator fabricated by two-in-one femtosecond laser writing

Chen Xin, Zhongguo Ren, Leran Zhang, Liang Yang, Dawei Wang, Yanlei Hu, Jiawen Li, Jiaru Chu, Li Zhang and Dong Wu ()
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Chen Xin: University of Science and Technology of China
Zhongguo Ren: University of Science and Technology of China
Leran Zhang: University of Science and Technology of China
Liang Yang: University of Science and Technology of China
Dawei Wang: University of Science and Technology of China
Yanlei Hu: University of Science and Technology of China
Jiawen Li: University of Science and Technology of China
Jiaru Chu: University of Science and Technology of China
Li Zhang: The Chinese University of Hong Kong
Dong Wu: University of Science and Technology of China

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: Abstract Inspired by the flexible joints of humans, actuators containing soft joints have been developed for various applications, including soft grippers, artificial muscles, and wearable devices. However, integrating multiple microjoints into soft robots at the micrometer scale to achieve multi-deformation modalities remains challenging. Here, we propose a two-in-one femtosecond laser writing strategy to fabricate microjoints composed of hydrogel and metal nanoparticles, and develop multi-joint microactuators with multi-deformation modalities (>10), requiring short response time (30 ms) and low actuation power (

Date: 2023
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DOI: 10.1038/s41467-023-40038-x

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