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

Title
Thermoresponsive switching of liquid flow direction on a two-face prism array
Authors
고재현김상문강도현서효선윤현식서갑양차국헌
Issue Date
2013-04
Publisher
Soft Matter
Citation
VOL 9, NO 16-4149
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.
URI
http://pubs.kist.re.kr/handle/201004/70955
ISSN
1744-683X
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