Optically induced motion of liquid crystalline droplets.

Dogishi, Yoshiharu; Sakai, Yota; Sohn, Woon Yong; Katayama, Kenji · Soft Matter · 2018

basic_science · Level V

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Abstract

The controlled motion of a liquid crystalline active droplet was demonstrated in a surfactant solution and by irradiation with UV light. The droplet could be induced to roll on a glass substrate toward the UV light source. This was explained by the Marangoni flow induced by the UV-induced desorption of surfactants.