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Comparison of the low-frequency magnetic field effects on bacteria Escherichia coli, Leclercia adecarboxylata and Staphylococcus aureus
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SYSNO ASEP 0104699 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Comparison of the low-frequency magnetic field effects on bacteria Escherichia coli, Leclercia adecarboxylata and Staphylococcus aureus Title Porovnání působení nízkofrekvenčních magnetických polí na bakterie Escherichia coli, Leclercia adecarboxylata a Staphylococcus aureus Author(s) Fojt, Lukáš (BFU-R) RID, ORCID
Strašák, Luděk (BFU-R)
Vetterl, Vladimír (BFU-R)
Šmarda, J. (CZ)Source Title Bioelectrochemistry. - : Elsevier - ISSN 1567-5394
Roč. 63, 1-2 (2004), s. 337-341Number of pages 5 s. Language eng - English Country CH - Switzerland Keywords low-frequency electromagnetic field ; ELF magnetic fields ; bacteria Subject RIV BO - Biophysics R&D Projects GA310/01/0816 GA ČR - Czech Science Foundation (CSF) IBS5004107 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA4004404 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z5004920 - BFU-R Annotation This work studies biological effects of low-frequency electromagnetic fields. We have exposed three different bacterial strains-Escherichia coli, Leclercia adecarboxylata and Staphylococcus aureus to the magnetic field (t < 30 min, B-m = 10 mT, f= 50 Hz) in order to compare their viability (number of colony-forming units (CFU)). We have measured the dependence of CFU on time of exposure and on the value of the magnetic field induction B-m. Viability decreases with longer exposure time and/or higher induction B,, for all strains, but the quantity of the effect is strain-dependent. The highest decrease of the viability and the biggest magnetic field effect was observed with E. coli. The smallest magnetic field effect appears for S. aureus. From the measurement of the growth dynamics we have concluded that the decrease of the CFU starts immediately after the magnetic field was switched on. Workplace Institute of Biophysics Contact Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Year of Publishing 2005
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