2008/05/12 by Emil Prodan, Camelia Prodan, John H. Miller +1 · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Electrical and Bioimpedance Tomography #Electrostatics and Colloid Interactions #Microfluidic and Bio-sensing Technologies #cond-mat.other #cond-mat.soft
paper · pdf · doi:10.1529/biophysj.108.137042
published as Biophysical Journal 95, 4174-4182 (2008) · 8 pages, 9 figures
arxiv created 2008/05/12 · openalex publication_date 2008/07/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
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.