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Photocontrolled Translational Motion of a Microscale Solid Object on Azobenzene-Doped Liquid-Crystalline Films

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  • This work was supported by a Grant-in-Aid for Scientific Research in the Priority Area “New Frontiers in Photochromism” (no. 471) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan.

Abstract

On the move: Irradiation of azobenzene-doped liquid crystalline films with UV/Vis light results in the photocontrolled translational motion of microscale solid object on the surface, which occurs through cistrans isomerization of the azobenzene unit. Irradiation with an Ar+ laser (488 nm) resulted in precise control of the translational motion so that the particle always moved away from the irradiation position (see picture).

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