Photoluminescence of Staphylococcus Aureus, Staphylococcus Saprophyticus and Рseudomonas Aerugenosa

Abstract

The measurement technique and the results obtained by optical spectroscopy during excitation of bac terial biomass Staphylococcus aureus, Staphylococcus saprophyticus and Рseudomonas aerugenosa by photons described. The photoluminescence spectra of bacterial biomass studied in the wavelength range 440-740 nm during excitation by photons with 405 nm wavelength. Peculiarities were found in the lumi nescence spectra (radiation intensity, several maxima), indicating the excitation of the OH radicals and porphyrin by photon impact. After 5 days intensity of photoluminescence dramatically decreased, but still demonstrated differences between bacteria