Abstract
This study was aimed to evaluate the impact of high frequency electromagnetic fields (HF-EMF at 900 and 1800MHz) on DNA, growth rate and antibiotic susceptibility of S. aureus, S. epidermidis, and P. aeruginosa. In this study, bacteria were exposed to 900 and 1800MHz for 2h and then inoculated to new medium when their growth rate and antibiotic susceptibility were evaluated. Results for the study of bacterial DNA unsuccessful to appearance any difference exposed and non-exposed S. aureus and S. epidermidis. Exposure of S. epidermidis and S. aureus to electromagnetic fields mostly produced no statistically significant decrease in bacterial growth, except for S. aureus when exposure to 900MHz at 12h. Exposure of P. aeruginosa to electromagnetic fields at 900MHz however, lead to a significant reduction in growth rate, while 1800MHz had insignificant effect. With the exception of S. aureus, treated with amoxicillin (30µg) and exposed to electromagnetic fields, radiation treatment had no significant effect on bacterial sensitivity to antibiotics.