Title :
Electro-orientation spectra of hematic cells
Author :
Sebastián, José L. ; Muñoz, Sagrario ; Sancho, Miguel ; Martínez, G.
Author_Institution :
Fis. Aplic. III, Univ. Complutense de Madrid, Madrid, Spain
Abstract :
We calculate the turnover frequency spectra for erythrocyte hematic cells. For this purpose we present a simple approach to calculate the electric field induced torque on essentially dielectric objects. We define an effective dipole moment as a function of the cell internal electric field distribution which is determined by using an adaptive finite-element numerical method. The realistic shape of the erythrocyte, with a structure formed by cytoplasm and a single layer membrane, is generated by a parameterization in terms of Jacobi elliptic functions. A comparison of the calculated orientational spectra with experimental erythrocyte electro-orientation data shows quantitatively the effect of an accurate geometry and cell structure in the derivation of electrical parameters from fittings of theoretical models to experimental data.
Keywords :
biological effects of fields; biomembranes; blood; cellular biophysics; dielectric materials; electric moments; finite element analysis; torque; Jacobi elliptic function; adaptive finite element numerical method; cytoplasm; dielectric object; dipole moment; electric field induced torque; electroorientation spectra; erythrocyte electroorientation data; erythrocyte hematic cell; internal electric field distribution; single layer membrane; turnover frequency spectra; Biomembranes; Conductivity; Dielectrics; Electric fields; Ellipsoids; Shape; Torque;
Conference_Titel :
Electromagnetic Theory (EMTS), 2010 URSI International Symposium on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-5155-5
Electronic_ISBN :
978-1-4244-5154-8
DOI :
10.1109/URSI-EMTS.2010.5637325