The dielectric response of spherical live cells in suspension: an analytic solution.
We develop a theoretical framework to describe the dielectric response of live cells in suspensions when placed in low external electric fields. The treatment takes into account the presence of the cell's membrane and of the charge movement at the membrane's surfaces. For spherical cells suspended in aqueous solutions, we give an analytic solution for the dielectric function, which is shown to account for the alpha- and beta-plateaus seen in many experimental data. The effect of different physical parameters on the dielectric curves is methodically analyzed.
Prodan
Emil
E
Physics Department, Yeshiva University, New York, New York, USA. prodan@yu.edu
Prodan
Camelia
C
Miller
John H
JH
D048430:Cell Shape; D002470:Cell Survival; D017097:Electric Impedance; D008564:Membrane Potentials; D008954:Models, Biological; D013535:Suspensions
D013535:Suspensions