Immobilization of Saccharomyces yeast cells on electret polyethylene films

The method of electret-thermal analysis developed in dielectric physics has been applied to monitor bioelectric phenomena that accompany the immobilization of microorganisms on electret substrates. A spectrum of thermo stimulated currents for biofilms consisting of immobilized Saccharomyces cells ha...

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Bibliographic Details
Published in:	Biofizika Vol. 53; no. 4; p. 652
Main Authors:	Pinchuk, L S, Bokhovkin, A G, Korotkiĭ, M V, Kravtsov, A G
Format:	Journal Article
Language:	Russian
Published:	Russia (Federation) 01-07-2008
Subjects:	Biofilms Cells, Immobilized - cytology Cells, Immobilized - metabolism Electrochemistry Polyethylene Saccharomyces cerevisiae - cytology Saccharomyces cerevisiae - metabolism
Online Access:	Get more information
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Summary:	The method of electret-thermal analysis developed in dielectric physics has been applied to monitor bioelectric phenomena that accompany the immobilization of microorganisms on electret substrates. A spectrum of thermo stimulated currents for biofilms consisting of immobilized Saccharomyces cells has been obtained. The spectrum represents a halo in the region of 30-90 degrees C. The immobilization of Saccharomyces cells on electret polyethylene films results in their depolarization that is recorded on the spectra of thermostimulated currents as a reduction of the current peak corresponding to the polyethylene melting point. A hypothesis has been put forward that explains the phenomenon by the absorption of the electric energy of polarized substrates by the cells for the occurrence of metabolic reactions.
ISSN:	0006-3029