Light-controlled soft microrobotics technologies can bridge the gap between microrobotics and polymeric artificial muscles. In article number 1703554, Hao Zeng, Arri Priimagi, and co-workers highlight recent progress in photomobile devices based on liquid-crystal elastomers, such as walkers, swimmers, and oscillators. Self-regulated actuation is proposed as a new pathway toward fully autonomous, intelligent light robots of the future.
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Zeng et al. (2018) studied this question.