Počet záznamů: 1

Measurement of Electrical Oscillations and Mechanical Vibrations of Yeast Cells Membrane Around 1 kHz

  1. 1.
    0341296 - URE-Y 2010 RIV US eng J - Článek v odborném periodiku
    Jelínek, František - Cifra, Michal - Pokorný, Jiří - Hašek, Jiří - Vaniš, Jan - Šimša, Jan - Frýdlová, Ivana
    Measurement of Electrical Oscillations and Mechanical Vibrations of Yeast Cells Membrane Around 1 kHz.
    Electromagnetic Biology and Medicine. Roč. 28, č. 2 (2009), s. 223-232 ISSN 1536-8378
    Grant CEP: GA MŠk OC 281.001
    Výzkumný záměr: CEZ:AV0Z20670512; CEZ:AV0Z50200510
    Klíčová slova: Cellular Biophysics * Electromagnetic Fields
    Kód oboru RIV: BO - Biofyzika
    Impakt faktor: 0.729, rok: 2009

    Frohlich postulated coherent polar oscillations as a fundamental biophysical property of biological systems. Recently, Pelling et al. (2004, 2005) detected mechanical vibrations of yeast cell membrane with atomic force microscope (AFM) and analyzed by Fourier analysis in the frequency range 0.5-2 kHz with amplitudes of the order of 1 nm. This article describes the measurement of electric activity of yeast cells in the acoustic frequency range and of mechanical vibrations of cell membrane. Spectrum analyzer and electrically and electromagnetically screened box with point sensor and amplifiers fed by batteries were used for measurement of synchronized and non synchronized tubulin mutants of yeast cells. We show that the electric activity of synchronized cells in the M phase is greater that of non synchronized cells.
    Trvalý link: http://hdl.handle.net/11104/0184322