Optically induced motion of liquid crystalline droplets†
Woon Yong
Sohn 
a
and
Kenji
Katayama
*ab
a
and
Kenji
Katayama
*ab
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.
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