Dielectric Approach to Suspensions of Ellipsoidal Particles Covered with a Shell in Particular Reference to Biological Cells

Abstract

A dielectric theory of interfacial polarization is presented for a heterogeneous system containing ellipsoidal particles covered with shells, in order to make an analysis of dielectric behavior of suspensions of ellipsoidal biological cells. For the case of spheroidal shapes, dielectric dispersion curves are calculated numerically by using the electrical and morphological parameters relevant to biological cells. The results indicate that the calculated dielectric dispersion curves are seriously affected by varying the axial ratio of the spheroids. For the purpose of analyzing dielectric data of biological cell suspensions on the basis of the presented theory, a procedure is proposed to evaluate electrical parameters characteristic of biological cells. This procedure is shown to be successfully applied to the observed dielectric data of erythrocyte suspensions.

Dielectrophoretic spectra of translational velocity and critical frequency for a spheroid in traveling electric field

“…1͑a͒. The effective value of the complex relative permittivity of the whole spheroid ͑ eff ‫ء‬ ͒ can be then written 14 as…”

Dielectric spectroscopy of Tobacco Mosaic Virus

“…[26] was used to analyse the data presented in this paper by fitting the dielectric loss data to the general expression for the dielectric properties of a suspension of ellipsoidal particles [12,26]. The complex dielectric constant e* for a mixture of volume fraction U, is given by:…”

Энергия Вытянутой Сфероидальной Оболочки В Однородном Магнитном Поле

“…1). Однако такой выбор позволяет по-лучить достаточно простое аналитическое выражение для электро-или магнитостатического потенциала и поэтому удобен для теоретического анализа ( [10,15,16]). …”