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Photo-tuning of highly selective wetting in inverse opals
Thomas A Singleton1, Ian B Burgess, Bryan A Nerger
1Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada.
Soft Matter
|March 22, 2014
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.

