Negative phototactic behaviour of crystals on a glass surface.

Published in: Chemical communications (Cambridge, England) (2019)

Phototaxis of azobenzene crystals is demonstrated for the first time by using a simple setup. The crystals on a glass move away from the light source like living organisms during visible light irradiation. The motion is driven by repeated melting and recrystallization associated with trans↔cis isomerization.

Keyphrases

visible light
room temperature
high resolution
gram negative
high speed
radiation therapy
ionic liquid