Issue 16, 2013

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

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

Supplementary files

Article information

Article type
Communication
Submitted
19 Dec 2012
Accepted
06 Feb 2013
First published
21 Feb 2013

Soft Matter, 2013,9, 4145-4149

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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