Electrodynamic eigenmodes in cellular morphology

0387830 - ÚFE 2013 RIV IE eng J - Článek v odborném periodiku
Cifra, Michal
Electrodynamic eigenmodes in cellular morphology.
Biosystems. Roč. 109, č. 3 (2012), s. 356-366. ISSN 0303-2647. E-ISSN 1872-8324
Grant CEP: GA ČR(CZ) GAP102/11/0649; GA ČR GPP102/10/P454
Institucionální podpora: RVO:67985882
Klíčová slova: Cavity resonator * cell
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika
Impakt faktor: 1.581, rok: 2012

Eigenmodes of the spherical and ellipsoidal dielectric electromagnetic resonator have been analysed. The sizes and shape of the resonators have been chosen to represent the shape of the interphase and dividing animal cell. Electromagnetic modes that have shape exactly suitable for positioning of the sufficiently large organelles in cell (centrosome, nucleus) have been identified. We analysed direction and magnitude of dielectrophoretic force exerted on large organelles by electric field of the modes. We found that the TM1m1 mode in spherical resonator acts by centripetal force which drags the large organelles which have higher permittivity than the cytosol to the center of the cell. TM-kind of mode in the ellipsoidal resonator acts by force on large polarizable organelles in a direction that corresponds to the movement of the centrosomes (also nucleus) observed during the cell division, i.e. to the foci of the ellipsoidal cell
Trvalý link: http://hdl.handle.net/11104/0220339