Title of article
Inactivation by helium cold atmospheric pressure plasma for Escherichia coli and Staphylococcus aureus
Author/Authors
Lotfy, Khaled Department of Biology - Faculty of Science - Branch of Tayma, Tabuk University, Tabuk, Saudi Arabia , Khalil, Mohammed Physics Department - Faculty of Science - Sohag University, Sohag, Egypt , El‑Raheem, Hany Abd Center for Materials Science - Zewail City of Science and Technology, October Gardens, Giza, Egypt
Pages
10
From page
37
To page
46
Abstract
A helium cold atmospheric pressure plasma jet (HCAPPJ) driven by a commercial neon power supply was designed and
utilized for inactivation bacteria. The generated reactive spices by HCAPPJ were investigated by optical emission spectroscopy.
The reactive species of OH, OI, OI, N2
1+, N2
1+ and He were identified in the UV–Vis wavelength region. The reactive
species was not detected between 200 nm and 300 nm, as the flow rate of helium gas increased that led to the plasma temperature
reducing to a value near to the room temperature. In this work, we studied the impact of HCAPPJ on Gram-positive
and Gram-negative bacteria. The survival amounts of the two types of bacteria were decreased vastly when the rate flow
rate was equal to 10 L/min.
Keywords
Cold plasma , Optical emission spectroscopy , Reactive species , Inactivation bacteria
Journal title
Journal of Theoretical and Applied Physics
Serial Year
2020
Record number
2527175
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