Effects of Non-thermal Microwave Exposures on the Proliferation Rate of Saccharomyces Cerevisiae Yeast

摘要

This study evaluates the effect of non-thermal weak radiofrequency microwave (RF/MW) radiation on the proliferation response of the yeast Saccharomyces cerevisiae. S. cerevisiae strains type II (Sigma) were exposed to the microwaves at 900MHz and the selected powers of 13dBm, 3dBm and -7dBm using the Transverse Electro-Magnetic (TEM) cell. The average specific absorption rate (SAR) for a single cell was 0.12 W/kg. SAR was calculated by averaging the individual parameters of the cell components in accordance with their volume fraction in live cells. In these experiments yeast cells were continuously exposed to the MW radiation. Changes in yeast culture growth were monitored using the spoctrophotometry method. Measurements of the yeast cells' growth in control (sham-exposed) vs. irradiated samples were performed. The results revealed that the rate of yeast growth was increased at 13dBm and 3 dBm of MW exposures. In addition, we present the design and simulation results of the custom-made TEM Cell for irradiation of biological media.