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Nitric Oxide Generation with an Air Operated Non‐Thermal Plasma Jet and Associated Microbial Inactivation Mechanisms
Author(s) -
Hao Xiaolong,
Mattson Amber M.,
Edelblute Chelsea M.,
Malik Muhammad A.,
Heller Loree C.,
Kolb Juergen F.
Publication year - 2014
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201300187
Subject(s) - nitric oxide , plasma , nonthermal plasma , ozone , chemistry , jet (fluid) , analytical chemistry (journal) , oxide , materials science , environmental chemistry , organic chemistry , mechanics , physics , quantum mechanics
Chemical species that are generated by a plasma jet in a microhollow cathode discharge geometry when operated with air and a dc voltage were investigated. Nitric oxide (NO) is found as the dominant long‐lived reaction product with concentrations of several hundreds of ppm. In comparison, the concentrations observed for nitric dioxide (NO 2 ) and ozone (O 3 ) are negligible. The concentrations of NO are increasing with increasing electric power but decreasing with increasing flow rates. Simultaneously, NO 2 concentrations are increasing slightly. The results suggest that the observed far reaching biocidal effect of the plasma jet depends on the generation of nitric oxide.