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

0341296 - ÚFE 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. E-ISSN 1536-8386
Grant CEP: GA MŠMT 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