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Optical motion control of liquid crystalline droplets by host–guest molecular interaction

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Abstract

Photo-induced motion is demonstrated for a photo-responsive dye-doped liquid crystal (LC) droplet in a surfactant solution. The LC droplets started rolling on a substrate during UV irradiation and moved either toward or away from the UV light, depending on the functional groups of the guest dyes. The mechanism is explained by the Marangoni flow caused by the photo-isomerization-induced adsorption and desorption of the dye molecules to and from the LC/solution interfaces.

Graphical abstract: Optical motion control of liquid crystalline droplets by host–guest molecular interaction

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Publication details

The article was received on 25 Jun 2019, accepted on 07 Aug 2019 and first published on 08 Aug 2019


Article type: Paper
DOI: 10.1039/C9SM01265F
Soft Matter, 2019, Advance Article

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    Optical motion control of liquid crystalline droplets by host–guest molecular interaction

    Y. Sakai, W. Y. Sohn and K. Katayama, Soft Matter, 2019, Advance Article , DOI: 10.1039/C9SM01265F

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