writer：Qian, N.; Bisoyi, H. K.; Wang, M.; Huang, S.; Liu, Z.; Chen, X.; Hu, J.; Yang, H.*; Li, Q.*
keywords：liquid crystal elastomer
source：期刊
specific source：Advanced Functional Materials, 2023, 33, 2214205.
Issue time：2023年
In recent

years, although light-driven soft actuators have attracted intense scientific

attention and achieved remarkable progress, the design and construction of an

intelligent robotic system with maneuverability, self-adaptability, untethered

control and greater freedom of action, in particular the omnidirectional motion

capability on a plane, remain challenging. Here we introduce four types of

photo-thermal conversion fillers and an unprecedented twist-bend actuation mode

into a liquid crystal elastomer-based soft robot. The obtained twist-bend

crawling robot not only exhibits in-situ rotation, four-way turning and

four-way linear motion under light irradiation with four wavelength bands (520,

655, 808, and 980?nm), but also demonstrates the ability to avoid obstacles in

complex geographical environments. This work may bring a new perspective for

fabrication and development of soft robots that could adapt to dynamic and

complex environmental conditions.