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.
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
4 April 2005
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), .
(doi:10.1063/1.1873034).
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.
Text
J29_Ramos_Morgan_Green_Gonzalez_Castellanos_J_Applied_Physics_2005.pdf
- Other
More information
Published date: 4 April 2005
Organisations:
Electronics & Computer Science
Identifiers
Local EPrints ID: 355532
URI: http://eprints.soton.ac.uk/id/eprint/355532
ISSN: 0021-8979
PURE UUID: 0664034b-c27d-4b95-a5db-62346bc8e3a9
Catalogue record
Date deposited: 24 Oct 2013 13:40
Last modified: 15 Mar 2024 03:20
Export record
Altmetrics
Contributors
Author:
Antonio Ramos
Author:
Hywel Morgan
Author:
Nicolas G Green
Author:
Antonio González
Author:
Antonio Castellanos
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics