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Adv Mater. 2012 Mar 22;24(12):1545-50. doi: 10.1002/adma.201104446. Epub 2012 Feb 14.

Controlling liquid drops with texture ratchets.

Author information

1
Department of Electrical Engineering, University of Washington, Seattle, WA 98195-2500, USA.

Abstract

Controlled vibration selectively propels multiple microliter-sized drops along microstructured tracks, leading to simple microfluidic systems that rectify oscillations of the three-phase contact line into asymmetric pinning forces that propel each drop in the direction of higher pinning.

PMID:
22331660
DOI:
10.1002/adma.201104446
[Indexed for MEDLINE]

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