Abstract
This article is a continuation of the authors’ previous contribution. Plasma-activated water (PAW) prepared by exposure to the point-to-plane dc corona discharge was analyzed, and its biological effect tested on bacteria in planktonic and biofilm forms. Hydrogen peroxide and nitric acid were found as active components of PAW, although the presence of another unknown compound cannot be excluded unambiguously. PAW inhibits rapidly planktonic Gram-positive bacteria, whereas the inhibition of Gram-negative ones is somewhat slower. In biofilm form, this activity was not observed, so that PAW is not able to disinfect bacterial biofilms.
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Published in Russian in Fizika Plazmy, 2018, Vol. 44, No. 9, pp. 706–713.
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Hozák, P., Scholtz, V., Khun, J. et al. Further Contribution to the Chemistry of Plasma-Activated Water: Influence on Bacteria in Planktonic and Biofilm Forms. Plasma Phys. Rep. 44, 799–804 (2018). https://doi.org/10.1134/S1063780X18090040
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DOI: https://doi.org/10.1134/S1063780X18090040