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Plasma Medicine
SJR: 0.271 SNIP: 0.316 CiteScore™: 1.9

ISSN Imprimir: 1947-5764
ISSN On-line: 1947-5772

Plasma Medicine

DOI: 10.1615/PlasmaMed.2014006535
pages 141-149

Comparative Study of Three Nonthermal Plasma Sources against Causative Agents of Nosocomial Infections

Svetlana A. Ermolaeva
Gamaleya Research Institute of Epidemiology and Microbiology, Ministry of Health and Social Development of Russian Federation, Moscow, Russia
Oleg F. Petrov
Joint Institute of High Temperatures RAS, Russian Academy of Science, Moscow, Russia
Yurii S. Akishev
Scientific Research Center of Russian Federation TRINITI, Pushkovy st. 12, Troitsk, Moscow region, Russia; National Research Nuclear University "MEPhI," Kashirskoe shosse 31, Moscow, 115409, Russia
Viktor N. Vasilets
Institute for Energy Problems of Chemical Physics (Branch) RAS, Russian Academy of Science, Chernogolovka, Moscow Region, Russia
Elena V. Sysolyatina
Gamaleya Research Institute of Epidemiology and Microbiology, Ministry of Health and Social Development of Russian Federation, Moscow, Russia
Mikhail M. Vasiliev
Joint Institute of High Temperatures RAS, Russian Academy of Science, Moscow, Russia
Boris S. Naroditsky
Gamaleya Research Institute of Epidemiology and Microbiology, Ministry of Health and Social Development of Russian Federation, Moscow, Russia
Gregor Ego Morfill
Max Planck Institute for extraterrestrial Physics, Giessenbachstrasse, D-85471 Garching, Germany
Anatoly I. Grigoriev
Institute for Biomedical Problems RAS, Russian Academy of Science, Moscow, Russia
Vladimir Evgenievich Fortov
Joint Institute of High Temperatures RAS, Russian Academy of Science, Moscow, Russia
Alexander L. Gintsburg
Gamaleya Research Institute of Epidemiology and Microbiology, Ministry of Health and Social Development of Russian Federation, Moscow, Russia

RESUMO

Nonthermal plasmas (NTPs) represent a perspective class of antibacterial agents that might be an alternative to chemical disinfectants because they possess an unspecific antimicrobial activity and can be applied to decontamination of heat- and chemical-sensitive surfaces as well as to the infected skin and wounds. The resistance to NTP depends on properties of both a microorganism and a certain plasma source. Two bacterial species, Pseudomonas aeruginosa and Staphylococcus aureus, which are among the most important causative agents of nosocomial infections, were tested with three different plasma sources. The ferroelectric air plasma generator, the microwave argon plasma source, and the generator of a positive and negative corona discharge in air demonstrated increasing activity toward tested bacteria. The relative resistance of the tested strains to NTPs produced by distinct plasma sources differed. P. aeruginosa was more resistance to the corona discharge and less resistant to the plasma generated by the ferroelectric generator than S. aureus while both strains demonstrated comparable resistance to microwave argon plasma. Obtained results demonstrated a role of charged particles as a primary factor in the high effectiveness of the positive and negative coronas and an importance of the NO• radical among neutral active species.


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