Controlling liquid drops with texture ratchets.

Duncombe, Todd A; Erdem, E Yegân; Shastry, Ashutosh; Baskaran, Rajashree; Böhringer, Karl F · Adv Mater · 2012

basic_science · Level V

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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.

Medical subject headings