Number of the records: 1
Bactericidal effects and formation of ROS/RNS in water sprayed through cold air plasma
- 1.0386774 - ÚFP 2013 RIV PL eng O - Others
Machala, Z. - Tarabová, B. - Lukeš, Petr - Doležalová, Eva - Šikurová, L. - Hensel, K.
Bactericidal effects and formation of ROS/RNS in water sprayed through cold air plasma.
2012
R&D Projects: GA AV ČR IAAX00430802; GA MŠMT(CZ) MEB0810116
Institutional research plan: CEZ:AV0Z20430508
Keywords : Plasma electrospray * water * bacteria * hydrogen peroxide * nitrites * acidification
Subject RIV: BL - Plasma and Gas Discharge Physics
Bio-decontamination and chemical effects induced by plasma in water upon electro-spraying through cold atmospheric pressure plasma of DC-driven positive transient spark discharge in air were investigated. Inactivation of Escherichia coli in plasma treated water was determined in dependence on the solution pH (controlled by buffers) and correlated with chemical changes induced in water. Productions of H2O2, nitrites, nitrates, peroxynitrites and pH changes were determined. The degree of inactivation and oxidative damage of bacteria increased with increasing acidity of the solution. Acidified nitrites interacting with H2O2 were determined as the most important bactericidal ROS/RNS agents in water treated by air plasma.
Permanent Link: http://hdl.handle.net/11104/0218588
Number of the records: 1