ANTONIEA POIATA*, IULIANA MOTRESCU**, A. NASTUȚĂ***, DORINA CREANGĂ***#, G. POPA***
*Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy Iași, 17 Universității St., Iași, Romania
** Department of Sciences, “Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, 3 Sadoveanu Alley, 700490, Iași, Romania
***Faculty of Physics, “Alexandru Ioan Cuza” University, 11A, Carol I Blvd, 700506, Iași, Romania,
**** Biomedical Sciences Department, Faculty of Medical Bioengineering, “Grigore T. Popa” University of Medicine and Pharmacy Iași, 9–13 M. Kogălniceanu St., Iași, Romania
Atmospheric cold plasma jet was used to test the effects on some microorganisms that could contaminate temperature-sensitive medical devices. The inactivation of the bacterial growth around plasma jet impact spot was measured and analyzed after 100 s exposure. Different behaviors of Gram-positive and Gram-negative bacteria were evidenced for the two plasma jet lengths: 2.5, and 3.5 cm, respectively. We attributed the results to the interaction of ultraviolet radiation (UV) generated by the plasma jet ozone with proteins found in high concentration in the cellular wall of Gram-negative strains compared to Gram-positive ones.
Corresponding author’s e-mail: dorina.creanga@gmail.com
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