A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide
Abstract
There is an urgent need for disinfection and sterilization devices accessible to the public that can be fulfilled by innovative strategies for using cold atmospheric pressure plasmas. Here, we demonstrate a successful novel combination of a flexible printed circuit design of a dielectric barrier discharge (flex-DBD) with an environmentally safe chemical reagent for surface decontamination from bacterial contaminants. Flex-DBD operates in ambient air, atmospheric pressure, and room temperature without any additional gas flow at a power density not exceeding 0.5 W/cm2. The flex-DBD activation of a 3% hydrogen peroxide solution results in the reduction in the bacterial load of a surface contaminant of > 6log10 in 90 s, about 3log10 and 2log10 better than hydrogen peroxide alone or the flex-DBD alone, respectively, for the same treatment time. We propose that the synergy between plasma and hydrogen peroxide is based on the combined action of plasma-generated OH· radicals in the hydrogen peroxide solution and the reactive nitrogen species supplied by the plasma effluent. A scavenger method verified a significant increase in OH· concentration due to plasma treatment. Novel in-situ FTIR absorption spectra show the presence of O3, NO2, N2O, and other nitrogen species. Ozone dissolving in the H2O2 solution can effectively generate OH·more »
- Authors:
-
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- New Jersey Institute of Technology, Newark, NJ (United States)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1814443
- Grant/Contract Number:
- AC02-09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Gershman, Sophia, Harreguy, Maria B., Yatom, Shurik, Raitses, Yevgeny, Efthimion, Phillip, and Haspel, Gal. A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide. United States: N. p., 2021.
Web. doi:10.1038/s41598-021-84086-z.
Gershman, Sophia, Harreguy, Maria B., Yatom, Shurik, Raitses, Yevgeny, Efthimion, Phillip, & Haspel, Gal. A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide. United States. https://doi.org/10.1038/s41598-021-84086-z
Gershman, Sophia, Harreguy, Maria B., Yatom, Shurik, Raitses, Yevgeny, Efthimion, Phillip, and Haspel, Gal. Thu .
"A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide". United States. https://doi.org/10.1038/s41598-021-84086-z. https://www.osti.gov/servlets/purl/1814443.
@article{osti_1814443,
title = {A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide},
author = {Gershman, Sophia and Harreguy, Maria B. and Yatom, Shurik and Raitses, Yevgeny and Efthimion, Phillip and Haspel, Gal},
abstractNote = {There is an urgent need for disinfection and sterilization devices accessible to the public that can be fulfilled by innovative strategies for using cold atmospheric pressure plasmas. Here, we demonstrate a successful novel combination of a flexible printed circuit design of a dielectric barrier discharge (flex-DBD) with an environmentally safe chemical reagent for surface decontamination from bacterial contaminants. Flex-DBD operates in ambient air, atmospheric pressure, and room temperature without any additional gas flow at a power density not exceeding 0.5 W/cm2. The flex-DBD activation of a 3% hydrogen peroxide solution results in the reduction in the bacterial load of a surface contaminant of > 6log10 in 90 s, about 3log10 and 2log10 better than hydrogen peroxide alone or the flex-DBD alone, respectively, for the same treatment time. We propose that the synergy between plasma and hydrogen peroxide is based on the combined action of plasma-generated OH· radicals in the hydrogen peroxide solution and the reactive nitrogen species supplied by the plasma effluent. A scavenger method verified a significant increase in OH· concentration due to plasma treatment. Novel in-situ FTIR absorption spectra show the presence of O3, NO2, N2O, and other nitrogen species. Ozone dissolving in the H2O2 solution can effectively generate OH· through a peroxone process. The addition of the reactive nitrogen species increases the disinfection efficiency of the hydroxyl radicals and other oxygen species. Hence, plasma activation of a low concentration hydrogen peroxide solution, using a hand-held flexible DBD device results in a dramatic improvement in disinfection.},
doi = {10.1038/s41598-021-84086-z},
journal = {Scientific Reports},
number = 1,
volume = 11,
place = {United States},
year = {Thu Feb 25 00:00:00 EST 2021},
month = {Thu Feb 25 00:00:00 EST 2021}
}
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