The dielectric response of spherical live cells in suspension: An analytic solution

Details The dielectric response of spherical live cells in suspension: An analytic solution The dielectric response of spherical live cells in suspension: An analytic solution

2008-05-12

arxiv.org/abs/0805.1745v1

Biophysical Journal 95, 4174-4182 (2008)

Physics

Condensed Matter

Soft Condensed Matter

8 pages, 9 figures

Scientific paper

10.1529/biophysj.108.137042

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.

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