title: AC electroosmotic pump with bubble-free palladium electrodes and rectifying polymer membrane valves.
abstract: We present the design, test and theoretical analysis of a novel micropump. The purpose is to make a pump with large flow rate (approximately 10 microL min-1) and high pressure capacity (approximately 1 bar) powered by a low voltage DeltaV<30 V. The pump is operated in AC mode with an electroosmotic actuator in connection with a full wave rectifying valve system. Individual valves are based on a flexible membrane with a slit. Bubble-free palladium electrodes are implemented in order to increase the range of applications and reduce maintenance.
authors.affiliation: MIC-Department of Micro and Nanotechnology Technical University of Denmark, DTU bldg. 345 east, DK-2800, Kongens Lyngby, Denmark.
authors.forename: Anders
authors.initials: A
authors.lastname: Brask
authors.forename: Detlef
authors.initials: D
authors.lastname: Snakenborg
authors.forename: Jörg P
authors.initials: JP
authors.lastname: Kutter
authors.forename: Henrik
authors.initials: H
authors.lastname: Bruus
mesh_terms: D004566:Electrodes; D004586:Electrophoresis / Q000295:instrumentation*; D004867:Equipment Design; D008567:Membranes, Artificial; D045423:Microbubbles; D008962:Models, Theoretical; D009997:Osmotic Pressure; D010165:Palladium / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D010165:Palladium; D019904:Polymethyl Methacrylate