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Keywords:

  • azo compounds;
  • liquid crystals;
  • mass transport;
  • photochemistry;
  • surface chemistry

Abstract

Thumbnail image of graphical 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).