Název: Measurement and Computer Simulation of Electromagnetic Oscillations of Living Cells
Autoři: Cifra, Michal ; Pokorný, Jiří ; Vrba, J.
Typ dokumentu: Příspěvky z konference
Konference/Akce: 18th annual CTU University-wide seminar, Praha (CZ), 2009-02-16 / 2009-02-20
Rok: 2009
Jazyk: eng
Abstrakt: 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. That corresponds to the findings of Pohl et al. (1981). Obtained results of measurement of cell electric activity are in good agreement with AFM findings.
Klíčová slova: bioelectric phenomena; cellular biophysics; modeling
Číslo projektu: CEZ:AV0Z20670512 (CEP)
Zdrojový dokument: WORKSHOP 09 : 18th ANNUAL CTU UNIVERSITY-WIDE SEMINAR, ISBN 978-80-01-04286-1

Instituce: Ústav fotoniky a elektroniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0187158

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-41595


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav fotoniky a elektroniky
Konferenční materiály > Příspěvky z konference