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Issue 16, 2013
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Thermoresponsive switching of liquid flow direction on a two-face prism array

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Abstract

We present a simple approach to reversibly switch the direction of liquid flow on physically symmetric and chemically asymmetric prism structures by exploiting the reversibility of surface wetting properties of a thermo-responsive polymer, poly(N-isopropyl-acrylamide). Such an asymmetric prism array creates a flow path in the direction of the lower critical contact angle. This allows a unidirectional “step flow” across the ridges of prism channels, which can be made reversible with a suitable temperature change.

Graphical abstract: Thermoresponsive switching of liquid flow direction on a two-face prism array

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Publication details

The article was received on 19 Dec 2012, accepted on 06 Feb 2013 and first published on 21 Feb 2013


Article type: Communication
DOI: 10.1039/C3SM27901D
Citation: Soft Matter, 2013,9, 4145-4149
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    Thermoresponsive switching of liquid flow direction on a two-face prism array

    S. M. Kim, D. H. Kang, J. H. Koh, H. S. Suh, H. Yoon, K. Suh and K. Char, Soft Matter, 2013, 9, 4145
    DOI: 10.1039/C3SM27901D

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