作者：Zuo, B.; Wang, M.; Lin, B.; Yang, H.*
关键字：liquid crystal elastomer
论文来源：期刊
具体来源：Nature Communications, 2019, 10, 4539.
发表时间：2019年

In

recent years, light-guided robotic soft actuators have attracted intense

scientific attention and rapidly developed, although it still remains challenging

to precisely and reversibly modulate the moving directions and shape morphing

modes of soft actuators with ease of stimulating operation. Here we report a

strategy of building a multi-stimuli-responsive liquid crystal elastomer soft

actuator system capable of performing not only multi-directional moving, but

also different shape morphing modes. This strategy is based on the selective

stimulation of specific domains of the hierarchical structured actuator through

the modulation of three wavelength bands (520, 808, 980 nm) of light stimulus, which

release the actuation system from light scanning position/direction restriction.

Three near-infrared dual-wavelength modulated actuators and one visible/infrared

tri-wavelength modulated multi-directional walker robot are demonstrated in

this work. These devices have broad application prospects in robotic and

biomimetic technology.