Geometrically insensitive deform-and-go liquid crystal elastomer actuators through controlled radical diffusion

Xiaorui Zhou, Yi Sheng, Guancong Chen, Hong Wan, Luping Lu, Hao Xing, Jiacheng Huang, Zhan Zhu, Yufei Wang, Hanyuan Bao, Jingjun Wu, Qian Zhao, Tao Xie and Ning Zheng ()
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Xiaorui Zhou: Zhejiang University
Yi Sheng: Zhejiang University
Guancong Chen: Zhejiang University
Hong Wan: Zhejiang University
Luping Lu: Zhejiang University
Hao Xing: tests.711
Jiacheng Huang: Zhejiang University
Zhan Zhu: Zhejiang University
Yufei Wang: Zhejiang University
Hanyuan Bao: Zhejiang University
Jingjun Wu: Zhejiang University
Qian Zhao: Zhejiang University
Tao Xie: Zhejiang University
Ning Zheng: Zhejiang University

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract The geometric shape and programming of mesogen alignment are two critical prerequisites for the effective actuation of liquid crystal elastomer (LCE) actuators. However, existing alignment programming approaches inevitably impose limitations on the geometric design of LCEs. In this study, we introduce a controlled radical diffusion mechanism that enables geometrically insensitive programming of actuation. Our findings show that LCEs can be deformed into complex structures via soft-elasticity and achieve the required mesogen alignment by simply soaking the LCE in an aqueous solvent of a free-radical initiator. The process requires no external assistance (maintained force, fixture, heating, or light) and the omnidirectional radicals’ diffusion enables precise implementation of actuation across arbitrary geometries, including those produced through 3D printing, molding, embossing, and origami techniques. This “deform-and-go” strategy allows for scalable and versatile fabrication of advanced LCE actuators, representing a significant advancement in soft robotics engineering.

Date: 2025
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DOI: 10.1038/s41467-025-62883-8

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