EFFECT OF WEAK MAGNETIC FIELDS ON BACTERIUM STAPHYLOCOCCUSAUREUS

Resumen

The effects of weak static and low - frequency magnetic fields on the growth rate of S. aureus are investigated. The measurements were performed at incubator cabinet with static magnetic fields with magnitude in range 0.0 Oe ≤ H o ≤ 14.0 Oe, and low - frequency magnetic fields with fixed amplitude H o  450 mT , and frequencies 0.0 ≤ f ≤ 1.0 kHz. The field was supplied by a cylindrical solenoid. The growth of these bacteria was negatively affected by increasing the static magnetic field. When exposed to an oscillating field, a positive effect was observed on the rate of growth of the colonies, after two hours of exposure. In both, static or ac magnetic field, the growth curves follow an exponential law, typical of asynchronous cell divisions.