No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner

Abstract To apply the sterilisation effect of low-temperature plasma to the oral cavity, the issue of ozone from plasma must be addressed. In this study, a new technology for generating cold plasma with almost no ozone is developed and is named Nozone (no-ozone) Cold Plasma (NCP) technology. The ant...

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Main Authors: Nam-Sook Park, Se-Eun Yun, Hyun-Young Lee, Hae June Lee, Jeong-Hae Choi, Gyoo-Cheon Kim
Format: Article
Language:English
Published: Nature Portfolio 2022-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-11665-z
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author Nam-Sook Park
Se-Eun Yun
Hyun-Young Lee
Hae June Lee
Jeong-Hae Choi
Gyoo-Cheon Kim
author_facet Nam-Sook Park
Se-Eun Yun
Hyun-Young Lee
Hae June Lee
Jeong-Hae Choi
Gyoo-Cheon Kim
author_sort Nam-Sook Park
collection DOAJ
description Abstract To apply the sterilisation effect of low-temperature plasma to the oral cavity, the issue of ozone from plasma must be addressed. In this study, a new technology for generating cold plasma with almost no ozone is developed and is named Nozone (no-ozone) Cold Plasma (NCP) technology. The antimicrobial efficacy of the NCP against four oral pathogens is tested, and its specific mechanism is elucidated. The treatment of NCP on oral pathogenic microbes on a solid medium generated a growth inhibition zone. When NCP is applied to oral pathogens in a liquid medium, the growth of microbes decreased by more than 105 colony forming units, and the bactericidal effect of NCP remained after the installation of dental tips. The bactericidal effect of NCP in the liquid medium is due to the increase in hydrogen peroxide levels in the medium. However, the bactericidal effect of NCP in the solid medium depends on the charged elements of the NCP. Furthermore, the surface bactericidal efficiency of the dental-tip-installed NCP is proportional to the pore size of the tips and inversely proportional to the length of the tips. Overall, we expect this NCP device to be widely used in dentistry in the near future.
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spelling doaj.art-ddf8fb954fb049ba8547d5c0b066b79b2022-12-22T03:24:33ZengNature PortfolioScientific Reports2045-23222022-05-0112111510.1038/s41598-022-11665-zNo-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent mannerNam-Sook Park0Se-Eun Yun1Hyun-Young Lee2Hae June Lee3Jeong-Hae Choi4Gyoo-Cheon Kim5Department of Research and Development, FEAGLE CorporationsDepartment of Oral Anatomy and Cell Biology, School of Dentistry, Pusan National UniversityDepartment of Research and Development, FEAGLE CorporationsDepartment of Electrical Engineering, Pusan National UniversityDepartment of Research and Development, FEAGLE CorporationsDepartment of Research and Development, FEAGLE CorporationsAbstract To apply the sterilisation effect of low-temperature plasma to the oral cavity, the issue of ozone from plasma must be addressed. In this study, a new technology for generating cold plasma with almost no ozone is developed and is named Nozone (no-ozone) Cold Plasma (NCP) technology. The antimicrobial efficacy of the NCP against four oral pathogens is tested, and its specific mechanism is elucidated. The treatment of NCP on oral pathogenic microbes on a solid medium generated a growth inhibition zone. When NCP is applied to oral pathogens in a liquid medium, the growth of microbes decreased by more than 105 colony forming units, and the bactericidal effect of NCP remained after the installation of dental tips. The bactericidal effect of NCP in the liquid medium is due to the increase in hydrogen peroxide levels in the medium. However, the bactericidal effect of NCP in the solid medium depends on the charged elements of the NCP. Furthermore, the surface bactericidal efficiency of the dental-tip-installed NCP is proportional to the pore size of the tips and inversely proportional to the length of the tips. Overall, we expect this NCP device to be widely used in dentistry in the near future.https://doi.org/10.1038/s41598-022-11665-z
spellingShingle Nam-Sook Park
Se-Eun Yun
Hyun-Young Lee
Hae June Lee
Jeong-Hae Choi
Gyoo-Cheon Kim
No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner
Scientific Reports
title No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner
title_full No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner
title_fullStr No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner
title_full_unstemmed No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner
title_short No-ozone cold plasma can kill oral pathogenic microbes in H2O2-dependent and independent manner
title_sort no ozone cold plasma can kill oral pathogenic microbes in h2o2 dependent and independent manner
url https://doi.org/10.1038/s41598-022-11665-z
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