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Issue 19, 2012
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Combinatorial wetting in colour: an optofluidic nose

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We present a colourimetric litmus test for simple differentiation of organic liquids based on wetting, which achieves chemical specificity without a significant sacrifice in portability or ease-of-use. Chemical specificity is derived from the combination of colourimetric wetting patterns produced by liquids in an array of inverse opal films, each having a graded wettability, but using different surface groups to define that gradient.

Graphical abstract: Combinatorial wetting in colour: an optofluidic nose

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The article was received on 01 May 2012, accepted on 28 May 2012 and first published on 30 May 2012

Article type: Communication
DOI: 10.1039/C2LC40489C
Citation: Lab Chip, 2012,12, 3666-3669

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    Combinatorial wetting in colour: an optofluidic nose

    K. P. Raymond, I. B. Burgess, M. H. Kinney, M. Lončar and J. Aizenberg, Lab Chip, 2012, 12, 3666
    DOI: 10.1039/C2LC40489C

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