Photo-tuning of highly selective wetting in inverse opals.

Singleton, Thomas A; Burgess, Ian B; Nerger, Bryan A; Goulet-Hanssens, Alexis; Koay, Natalie; Barrett, Christopher J; Aizenberg, Joanna · Soft Matter · 2014

basic_science · Level V

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Abstract

Crack-free inverse opals exhibit a sharply defined threshold wettability for infiltration that has enabled their use as colourimetric indicators for liquid identification. Here we demonstrate direct and continuous photo-tuning of this wetting threshold in inverse opals whose surfaces are functionalized with a polymer doped with azobenzene chromophores.

Medical subject headings