What is more important for radiated power from cells - Size or geometry?

0437156 - ÚFE 2015 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Havelka, D. - Cifra, Michal - Vrba, J.
What is more important for radiated power from cells - Size or geometry?
9TH INTERNATIONAL FROHLICH'S SYMPOSIUM: ELECTRODYNAMIC ACTIVITY OF LIVING CELLS (INCLUDING MICROTUBULE COHERENT MODES AND CANCER CELL PHYSICS). Vol. 329. Bristol: IOP, 2011 - (Cifra, M.; Pokorny, J.; Kučera, O.), 012014. ISSN 1742-6588.
[9th International Frohlich's Symposium on Electrodynamic Activity of Living Cells - Including Microtubule Coherent Modes and Cancer Cell Physics. Praha (CZ), 01.07.2011-03.07.2011]
Grant CEP: GA ČR(CZ) GAP102/11/0649
Institucionální podpora: RVO:67985882
Klíčová slova: Cell size * Cytoskeletons * Comparative analysis
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika

he cytoskeleton, especially microtubules, is potential source of electrodynamic field of living eukaryote cells. Microtubule network is a very dynamic structure which is composed of highly polar molecules - tubulin heterodimers. Microtubules have their eigenmode vibrations in frequency range from kHz to GHz. We approximated electrical properties of tubulin heterodimer as an elementary electric dipole and described the longitudinal mechanical oscillation of one microtubule by spatial modulation function. Mechanical oscillations of tubulin heterodimers were approximated as a chain of rigid particles and described by the spatial modulation function. An optical branch was used as it is more efficient for generation of electromagnetic field. We also created asymmetrical model of microtubule network of dividing cell and symmetrical model of microtubule network of non-dividing cell. The field around oscillating microtubule was calculated as a vector sum of contributions from all elementary electric dipoles. Finally, we performed calculations with several cell sizes and numbers of microtubules in models and performed comparative analysis
Trvalý link: http://hdl.handle.net/11104/0240723