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. Author manuscript; available in PMC: 2019 Jun 6.
Published in final edited form as: ACS Appl Mater Interfaces. 2019 Jan 4;11(2):1760–1765. doi: 10.1021/acsami.8b21058

Figure 2.

Figure 2.

Pseudomonas aeruginosa biofilms (gfp green) grown on an azopolymer coating on the surface of a glassy polymer substrate (red, rhodamine; panel a). On exposure to a clinical dental light at 430–480 nm (3 M Elipar DeepCure-S LED Curing Light) for 45 s at 700 mW/cm2, the photofluidization effect initiated via the rapid trans–cis–trans isomerization of the azobenzenes result in biofilm disruption and ejection (panels b and c). As soon as the light is switched off, the oscillatory dynamics cease, and materials return to its native state. The azocoating after the second exposure shows the further absence of biofilm (panel d).