Photodynamic action on microorganisms using iron oxide Fe2O3 nanoparticles and LED blue (405 nm) light

Pavel O. Petrov; Maria V. Kulikova; Elena S. Tuchina; Vyacheslav I. Kochubey; Valery V. Tuchin

doi:10.1117/12.907296

9 March 2012 Photodynamic action on microorganisms using iron oxide Fe₂O₃ nanoparticles and LED blue (405 nm) light

Pavel O. Petrov, Maria V. Kulikova, Elena S. Tuchina, Vyacheslav I. Kochubey, Valery V. Tuchin

Proceedings Volume 8211, Mechanisms for Low-Light Therapy VII; 82110L (2012) https://doi.org/10.1117/12.907296
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

The main goal was to study the sensitivity of microorganisms to combined action of LED blue (405 nm) light and Fe₂O₃ nanoparticles. The bacterial strains used in this study were Staphylococcus aureus 209 P, S. simulans, Dermabacter hominis (isolated from maxillary sinusitis). As blue light source LED with spectrum maxima at 405 nm was taken. The light exposure was ranged from 5 to 30 min. Fe₂O₃ nanoparticles with average size about 8 nm in concentration of 0.001% were used. It was shown that irradiation with blue light caused 20 to 90% decrease in the number of microorganisms treated with nanoparticles.

Citation Download Citation

Pavel O. Petrov, Maria V. Kulikova, Elena S. Tuchina, Vyacheslav I. Kochubey, and Valery V. Tuchin "Photodynamic action on microorganisms using iron oxide Fe₂O₃ nanoparticles and LED blue (405 nm) light", Proc. SPIE 8211, Mechanisms for Low-Light Therapy VII, 82110L (9 March 2012); https://doi.org/10.1117/12.907296

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