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AC Electric-Field-Induced Fluid Flow in Microelectrode Structures: Scaling Laws.

Castellanos, Antonio, Ramos, Antonio, González, Antonio, Green, Nicolas G and Morgan, Hywel (2002) AC Electric-Field-Induced Fluid Flow in Microelectrode Structures: Scaling Laws. At 14' International Conference on Dielectric Liquids (ICDL 2002). 07 - 12 Jul 2002. , pp. 52-55. (doi:10.1109/ICDL.2002.1022692).

Record type: Conference or Workshop Item (Paper)

Abstract

The motion of polarizable bioparticles under the action of non-uniform ac electric fields is known as dielectrophoresis. Because submicrometre particles are subjected to Brownian motion, high electric fields are needed to manipulate them. However, these high electric fields give rise to fluid motion, which in turn results in a viscous drag on the particles. The electric fields generate beat, leading to gradients in conductivity, permittivity, and mass density in the fluid. These gradients give rise to electrothermal forces and buoyancy. Also non-uniform ac electric fields produce forces on the induced charges in the diffuse double layer on the electrodes, that results in fluid motion. Here we characterize these flows and their domain of influence.

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More information

Published date: 2002
Venue - Dates: 14' International Conference on Dielectric Liquids (ICDL 2002), 2002-07-07 - 2002-07-12
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 266517
URI: http://eprints.soton.ac.uk/id/eprint/266517
ISBN: 0-7803-7350-2
PURE UUID: f0f2c2a3-1612-4aad-9bca-22a4bb698d95
ORCID for Nicolas G Green: ORCID iD orcid.org/0000-0001-9230-4455
ORCID for Hywel Morgan: ORCID iD orcid.org/0000-0003-4850-5676

Catalogue record

Date deposited: 05 Aug 2008 15:31
Last modified: 18 Jul 2017 07:15

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Contributors

Author: Antonio Castellanos
Author: Antonio Ramos
Author: Antonio González
Author: Nicolas G Green ORCID iD
Author: Hywel Morgan ORCID iD

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