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A large-area, all-plastic, flexible electroosmotic pump
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, Faculty of Science & Engineering. LunaMicro AB, Linkoping, Sweden.
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, Faculty of Science & Engineering. LunaMicro AB, Linkoping, Sweden.ORCID iD: 0000-0002-2773-5096
2017 (English)In: Microfluidics and Nanofluidics, ISSN 1613-4982, E-ISSN 1613-4990, Vol. 21, no 12, article id 178Article in journal (Refereed) Published
Abstract [en]

A large-area, fabric-like pump would potentially have applications, for example, in controlling water transport through a garment, such as a rain jacket, regardless of the external temperature and humidity. This paper presents an all-plastic, flexible electroosmotic pump, constructed from commercially available materials: A polycarbonate membrane combined with the electrochemically active polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate that actively transports water using an electric potential that can be supplied by a small battery. By using electrochemically active polymer electrodes instead of metal electrodes, the electrochemical reaction that drives flow avoids the oxygen and hydrogen gas production or pH changes associated with water electrolysis. We observe a water mass flux up to 23 mg min(-1) per cm(2) polycarbonate membrane (porosity 10-15%), at an applied potential of 5 V, and a limiting operating pressure of 0.3 kPa V-1, similar to previously reported membrane-based electroosmotic pumps.

Place, publisher, year, edition, pages
SPRINGER HEIDELBERG , 2017. Vol. 21, no 12, article id 178
Keywords [en]
Electroosmosis; Conducting polymer; Conjugated polymer; PEDOT: PSS; Track-etched porosity
National Category
Theoretical Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-143928DOI: 10.1007/s10404-017-2017-1ISI: 000417104800003OAI: oai:DiVA.org:liu-143928DiVA, id: diva2:1169789
Note

Funding Agencies|Swedish Research Council (Vetenskapsradet) Grant [2015-03298]

Available from: 2017-12-29 Created: 2017-12-29 Last updated: 2018-01-26

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