title: Controlling liquid drops with texture ratchets.
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.
authors.affiliation: Department of Electrical Engineering, University of Washington, Seattle, WA 98195-2500, USA.
authors.forename: Todd A
authors.initials: TA
authors.lastname: Duncombe
authors.forename: E Yegân
authors.initials: EY
authors.lastname: Erdem
authors.forename: Ashutosh
authors.initials: A
authors.lastname: Shastry
authors.forename: Rajashree
authors.initials: R
authors.lastname: Baskaran
authors.forename: Karl F
authors.initials: KF
authors.lastname: Böhringer
mesh_terms: D046210:Microfluidic Analytical Techniques / Q000379:methods*; D009038:Motion; D013499:Surface Properties; D014732:Vibration; D014783:Viscosity; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water