The dielectrophoretic behavior of submicron latex spheres: Influence of surface conductance

Authors
Hughes, MP Morgan, H Flynn, MF
Citation
Mp. Hughes et al., The dielectrophoretic behavior of submicron latex spheres: Influence of surface conductance, J COLL I SC, 220(2), 1999, pp. 454-457
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN journal
00219797 → ACNP
Volume
220
Issue
2
Year of publication
1999
Pages
454 - 457
Database
ISI
SICI code
0021-9797(199912)220:2<454:TDBOSL>2.0.ZU;2-5
Abstract
An analysis of the dielectrophoretic crossover frequency as a function of m edium conductivity has been made for submicron spheres with different surfa ce functionalities. It is shown that the AC electrokinetic behavior of the particles can be explained by modeling the surface conductivity of the part icle as the sum of two surface conductance components: one due to charge mo tion behind the slip plane (the Stern layer) and the other due to charge mo tion in front of the slip plane. (C) 1999 Academic Press.