Electrorotation in graded colloidal suspensions

Simple item page
dc.creatorHuang, J. P.
dc.creatorYu, K. W.
dc.creatorGu, G. Q.
dc.creatorKarttunen, Mikko
dc.date2002-12-20
dc.date.accessioned2026-07-07T02:48:52Z
dc.date.available2026-07-07T02:48:52Z
dc.descriptionBiological cells can be treated as composites of graded material inclusions. In addition to biomaterials, graded composites are important in more traditional materials science. In this article, we investigate the electrorotation (ER) spectrum of a graded colloidal suspension in an attempt to discuss its dielectric properties. For that, we use the recently obtained differential effective dipole approximation (DEDA) and generalize it for non-spherical particles. We find that variations in the conductivity profile may make the characteristic frequency red-shifted and have also an effect on the rotation peak. On the other hand, variations in the dielectric profile may enhance the rotation peak, but do not have any significant effect on the characteristic frequency. In the end, we apply our theory to fit experimental data obtained for yeast cells and find good agreement.
dc.identifierhttps://arxiv.org/abs/cond-mat/0212518
dc.identifierhttp://arxiv.org/abs/cond-mat/0212518
dc.identifierPhys. Rev. E 67, 051405 (2003)
dc.identifierdoi:10.1103/PhysRevE.67.051405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20574
dc.subjectSoft Condensed Matter
dc.subjectBiological Physics
dc.titleElectrorotation in graded colloidal suspensions
dc.typetext

Files

Collections

arXiv