Reconfigurable photoactuator through synergistic use of photochemical and photothermal effects.

ABSTRACT: A reconfigurable actuator is a stimuli-responsive structure that can be programmed to adapt different shapes under identical stimulus. Reconfigurable actuators that function without control circuitry and are fueled remotely are in great demand to devise adaptive soft robotic devices. Yet, obtaining fast and reliable reconfiguration remains a grand challenge. Here we report a facile fabrication pathway towards reconfigurability, through synergistic use of photochemical and photothermal responses in light-active liquid crystal polymer networks. We utilize azobenzene photoisomerization to locally control the cis-isomer content and to program the actuator response, while subsequent photothermal stimulus actuates the structure, leading to shape morphing. We demonstrate six different shapes reco

SUBMITTER: Lahikainen M 

PROVIDER: S-EPMC6175871 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature