Journal
ELECTROMAGNETIC BIOLOGY AND MEDICINE
Volume 33, Issue 1, Pages 29-34Publisher
INFORMA HEALTHCARE
DOI: 10.3109/15368378.2013.783848
Keywords
Cell metabolic activity; E. coli; growth dynamic; magnetic field; S. aureus
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This study presents results of research on the influence of rotating magnetic field (RMF) of the induction of 30 mT and the frequency of 50 Hz on the growth dynamics and cell metabolic activity of E. coli and S. aureus, depending on the exposure time. The studies showed that the RMF caused an increase in the growth and cell metabolic activity of all the analyzed bacterial strains, especially in the time interval t = 30 to 150 min. However, it was also found that the optical density and cell metabolic activity after exposition to RMF were significantly higher in S. aureus cultures. In turn, the study of growth dynamics, revealed a rapid and a significant decrease in these values from t = 90 min) in the case of E. coli samples. The obtained results prove that RMF (B = 30 mT, f = 50 Hz) has a stimulatory effect on the growth and metabolic activity of E. coli and S. aureus. Furthermore, taking into account the time of exposure, stronger influence of RMF on the viability was observed in S. aureus cultures, which may indicate that this effect depends on the shape of the exposed cells.
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