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Pumping of liquids with traveling-wave electroosmosis

Pumping of liquids with traveling-wave electroosmosis
Pumping of liquids with traveling-wave electroosmosis
Net flow of electrolyte induced by a traveling-wave electric potential applied to an array of microelectrodes is reported. Two fluid flow regimes have been observed: at small-voltage amplitudes the fluid flow follows the direction of the traveling wave, and at higher-voltage amplitudes the fluid flow is reversed. In both cases, the flow seems to be driven at the level of the electrodes. The experiments have been analyzed with a linear electroosmotic model based upon the Debye–Huckel theory of the double layer. The electrical problem for the experimental interdigitated electrode array is solved numerically using a truncated Fourier series. The observations at low voltages are in qualitative accordance with the electroosmotic model.
0021-8979
84906
Ramos, Antonio
511ab594-f312-45ce-b7ff-ef348fd9b559
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Green, Nicolas G
d9b47269-c426-41fd-a41d-5f4579faa581
González, Antonio
680d3ec2-ce71-40e8-a519-5b3b57d2b093
Castellanos, Antonio
aa989a75-63b0-4f3e-a36b-370545034d7b
Ramos, Antonio
511ab594-f312-45ce-b7ff-ef348fd9b559
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Green, Nicolas G
d9b47269-c426-41fd-a41d-5f4579faa581
González, Antonio
680d3ec2-ce71-40e8-a519-5b3b57d2b093
Castellanos, Antonio
aa989a75-63b0-4f3e-a36b-370545034d7b

Ramos, Antonio, Morgan, Hywel, Green, Nicolas G, González, Antonio and Castellanos, Antonio (2005) Pumping of liquids with traveling-wave electroosmosis. Journal of Applied Physics, 97 (8), 84906. (doi:10.1063/1.1873034).

Record type: Article

Abstract

Net flow of electrolyte induced by a traveling-wave electric potential applied to an array of microelectrodes is reported. Two fluid flow regimes have been observed: at small-voltage amplitudes the fluid flow follows the direction of the traveling wave, and at higher-voltage amplitudes the fluid flow is reversed. In both cases, the flow seems to be driven at the level of the electrodes. The experiments have been analyzed with a linear electroosmotic model based upon the Debye–Huckel theory of the double layer. The electrical problem for the experimental interdigitated electrode array is solved numerically using a truncated Fourier series. The observations at low voltages are in qualitative accordance with the electroosmotic model.

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Published date: 4 April 2005
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 355532
URI: https://eprints.soton.ac.uk/id/eprint/355532
ISSN: 0021-8979
PURE UUID: 0664034b-c27d-4b95-a5db-62346bc8e3a9
ORCID for Hywel Morgan: ORCID iD orcid.org/0000-0003-4850-5676
ORCID for Nicolas G Green: ORCID iD orcid.org/0000-0001-9230-4455

Catalogue record

Date deposited: 24 Oct 2013 13:40
Last modified: 10 Sep 2019 00:45

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