Dielectrophoresis of charged colloidal suspensions

Simple item page
dc.creatorHuang, J. P.
dc.creatorKarttunen, Mikko
dc.creatorYu, K. W.
dc.creatorDong, L.
dc.date2002-11-12
dc.date.accessioned2026-07-07T05:48:25Z
dc.date.available2026-07-07T05:48:25Z
dc.descriptionWe present a theoretical study of dielectrophoretic (DEP) crossover spectrum of two polarizable particles under the action of a nonuniform AC electric field. For two approaching particles, the mutual polarization interaction yields a change in their respective dipole moments, and hence, in the DEP crossover spectrum. The induced polarization effects are captured by the multiple image method. Using spectral representation theory, an analytic expression for the DEP force is derived. We find that the mutual polarization effects can change the crossover frequency at which the DEP force changes sign. The results are found to be in agreement with recent experimental observation and as they go beyond the standard theory, they help to clarify the important question of the underlying polarization mechanisms.
dc.identifierhttps://arxiv.org/abs/physics/0211055
dc.identifierhttp://arxiv.org/abs/physics/0211055
dc.identifierPhys. Rev. E 67, 021403 (2003)
dc.identifierdoi:10.1103/PhysRevE.67.021403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/85018
dc.subjectChemical Physics
dc.subjectBiological Physics
dc.titleDielectrophoresis of charged colloidal suspensions
dc.typetext

Files

Collections

arXiv