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Dielectrophoretic investigations of sub-micrometre latex spheres

Dielectrophoretic investigations of sub-micrometre latex spheres
Dielectrophoretic investigations of sub-micrometre latex spheres
A non-uniform AC electric field induces a motion in polarizable particles, called dielectrophoresis. The force responsible for this motion is governed by the dielectric properties both of the suspending medium and of the particles, as well as the geometry of the field. The dielectrophoretic properties of sub-micrometre latex spheres have been studied using micro-fabricated electrode structures. The electric field geometry for electrodes used in the measurements has been solved using numerical analysis. Measurements of the dielectrophoretic properties of the spheres have been made over a range of medium conductivities and applied field frequencies and strengths. Comparisons between the observed behaviour and that expected from theory are presented.
0022-3727
2626
Green, Nicolas G
d9b47269-c426-41fd-a41d-5f4579faa581
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174
Green, Nicolas G
d9b47269-c426-41fd-a41d-5f4579faa581
Morgan, Hywel
de00d59f-a5a2-48c4-a99a-1d5dd7854174

Green, Nicolas G and Morgan, Hywel (1997) Dielectrophoretic investigations of sub-micrometre latex spheres. Journal of Physics D: Applied Physics, 30 (18), 2626.

Record type: Article

Abstract

A non-uniform AC electric field induces a motion in polarizable particles, called dielectrophoresis. The force responsible for this motion is governed by the dielectric properties both of the suspending medium and of the particles, as well as the geometry of the field. The dielectrophoretic properties of sub-micrometre latex spheres have been studied using micro-fabricated electrode structures. The electric field geometry for electrodes used in the measurements has been solved using numerical analysis. Measurements of the dielectrophoretic properties of the spheres have been made over a range of medium conductivities and applied field frequencies and strengths. Comparisons between the observed behaviour and that expected from theory are presented.

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More information

Published date: 1997
Organisations: Electronics & Computer Science

Identifiers

Local EPrints ID: 372364
URI: https://eprints.soton.ac.uk/id/eprint/372364
ISSN: 0022-3727
PURE UUID: ea3c08c3-e948-4b59-bbf0-0a84adc101b5
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: 01 Dec 2014 16:32
Last modified: 06 Jun 2018 12:45

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