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Todd A. Duncombe, E. Yegân Erdem, Ashutosh Shastry, Rajashree Baskaran and Karl F. Böhringer Controlling Liquid Drops with Texture Ratchets Advanced Materials 24

Version of Record online: 14 FEB 2012 | DOI: 10.1002/adma.201104446

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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.

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