Photo-tuning of Highly Selective Wetting in Inverse Opals


Singleton TA, Burgess IB, Nerger BA, Goulet-Hanssens A, Koay N, Barrett CJ, Aizenberg J. Photo-tuning of Highly Selective Wetting in Inverse Opals. Soft Matter. 2014;10 (9) :1325-1328.


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 function- alized with a polymer doped with azobenzene chromophores.


This work was supported by the Air Force Office of Scientific Research under Award FA9550-09-1-0669-DOD35CAP (Harvard), the Natural Sciences and Engineering Research Council of Canada and Canadian Foundation for Innovation (McGill). AGH would like to acknowledge FQRNT for a B2 doctoral scholarship.

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Last updated on 05/04/2018