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The dielectrophoretic and travelling wave forces for interdigitated electrode arrays: analytical solution using Fourier series

The dielectrophoretic and travelling wave forces for interdigitated electrode arrays: analytical solution using Fourier series
The dielectrophoretic and travelling wave forces for interdigitated electrode arrays: analytical solution using Fourier series
In alternating current electrokinetics, electric fields are used to generate forces on particles. Techniques have been applied for the manipulation of particles and the measurement of their dielectric properties. The fields are typically generated by microelectrode structures fabricated on planar surfaces. One particular design, using interdigitated bar electrodes, is used both in dielectrophoretic field flow fractionation and travelling wave dielectrophoresis. This paper presents a Fourier series analysis of the dielectrophoretic force on a particle generated by this type of electrode array, for both dielectrophoresis and travelling wave dielectrophoresis. Simple expressions are derived for the force at a distance of the order of the electrode spacing from the electrodes. A full analytical expression is given for the dielectrophoretic force in two dimensions. Comparisons are made with previously published experimental observations.
0022-3727
1553-1561
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Garcia-Izquierdo, Alberto
88f777e9-de8a-4766-9803-418b1c9234ca
Bakewell, David J
2674b57d-b981-46c9-9154-679435db9a94
Green, Nicolas G
d9b47269-c426-41fd-a41d-5f4579faa581
Ramos, Antonio
511ab594-f312-45ce-b7ff-ef348fd9b559
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Garcia-Izquierdo, Alberto
88f777e9-de8a-4766-9803-418b1c9234ca
Bakewell, David J
2674b57d-b981-46c9-9154-679435db9a94
Green, Nicolas G
d9b47269-c426-41fd-a41d-5f4579faa581
Ramos, Antonio
511ab594-f312-45ce-b7ff-ef348fd9b559

Morgan, Hywel, Garcia-Izquierdo, Alberto, Bakewell, David J, Green, Nicolas G and Ramos, Antonio (2001) The dielectrophoretic and travelling wave forces for interdigitated electrode arrays: analytical solution using Fourier series. Journal of Physics D: Applied Physics, 34, 1553-1561. (doi:10.1088/0022-3727/34/10/316).

Record type: Article

Abstract

In alternating current electrokinetics, electric fields are used to generate forces on particles. Techniques have been applied for the manipulation of particles and the measurement of their dielectric properties. The fields are typically generated by microelectrode structures fabricated on planar surfaces. One particular design, using interdigitated bar electrodes, is used both in dielectrophoretic field flow fractionation and travelling wave dielectrophoresis. This paper presents a Fourier series analysis of the dielectrophoretic force on a particle generated by this type of electrode array, for both dielectrophoresis and travelling wave dielectrophoresis. Simple expressions are derived for the force at a distance of the order of the electrode spacing from the electrodes. A full analytical expression is given for the dielectrophoretic force in two dimensions. Comparisons are made with previously published experimental observations.

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J17_Morgan_Garcia-Izquierda_Bakewell_Green_Ramos_J_Physics_D_Applied_Physics_2001a.pdf - Other
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Published date: 2001
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 266493
URI: https://eprints.soton.ac.uk/id/eprint/266493
ISSN: 0022-3727
PURE UUID: 490aee6e-13b2-4caa-8a75-42bacc38f918
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: 03 Aug 2008 23:15
Last modified: 20 Jul 2019 00:59

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