Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms
Abstract Biofilms are complex microbial communities that present serious contamination risks to our environment and health. In this study, atmospheric air plasma and airborne acoustic ultrasound technology were applied to inactivate Escherichia coli and Listeria innocua biofilms. Both technologies w...
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Nature Portfolio
2021
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oai:doaj.org-article:f254772cb4d14fde8f0f557f977d28732021-12-02T13:23:50ZInactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms10.1038/s41598-021-81977-z2045-2322https://doaj.org/article/f254772cb4d14fde8f0f557f977d28732021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81977-zhttps://doaj.org/toc/2045-2322Abstract Biofilms are complex microbial communities that present serious contamination risks to our environment and health. In this study, atmospheric air plasma and airborne acoustic ultrasound technology were applied to inactivate Escherichia coli and Listeria innocua biofilms. Both technologies were efficient in controlling, or completely inactivating, the target bacterial biofilms. Viability and metabolic assays, along with microscopy analysis, revealed that atmospheric air plasma and airborne acoustic ultrasound damaged both the bacterial biofilm cells and its structural integrity. Scanning electron microscopy images highlighted the disruption of the biofilms and pore formation in bacterial cells exposed to both the plasma and acoustic treatments. Elevated reactive oxygen and nitrogen species in bacterial cells treated with atmospheric air plasma, demonstrated their primary role in the observed bacterial inactivation process. Our findings provide potential antimicrobial strategies to combat bacterial biofilms in the food and healthcare sectors.Apurva D. PatangeJeremy C. SimpsonJames F. CurtinCatherine M. BurgessP. J. CullenBrijesh K. TiwariNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021) |
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Medicine R Science Q Apurva D. Patange Jeremy C. Simpson James F. Curtin Catherine M. Burgess P. J. Cullen Brijesh K. Tiwari Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
description |
Abstract Biofilms are complex microbial communities that present serious contamination risks to our environment and health. In this study, atmospheric air plasma and airborne acoustic ultrasound technology were applied to inactivate Escherichia coli and Listeria innocua biofilms. Both technologies were efficient in controlling, or completely inactivating, the target bacterial biofilms. Viability and metabolic assays, along with microscopy analysis, revealed that atmospheric air plasma and airborne acoustic ultrasound damaged both the bacterial biofilm cells and its structural integrity. Scanning electron microscopy images highlighted the disruption of the biofilms and pore formation in bacterial cells exposed to both the plasma and acoustic treatments. Elevated reactive oxygen and nitrogen species in bacterial cells treated with atmospheric air plasma, demonstrated their primary role in the observed bacterial inactivation process. Our findings provide potential antimicrobial strategies to combat bacterial biofilms in the food and healthcare sectors. |
format |
article |
author |
Apurva D. Patange Jeremy C. Simpson James F. Curtin Catherine M. Burgess P. J. Cullen Brijesh K. Tiwari |
author_facet |
Apurva D. Patange Jeremy C. Simpson James F. Curtin Catherine M. Burgess P. J. Cullen Brijesh K. Tiwari |
author_sort |
Apurva D. Patange |
title |
Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
title_short |
Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
title_full |
Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
title_fullStr |
Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
title_full_unstemmed |
Inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
title_sort |
inactivation efficacy of atmospheric air plasma and airborne acoustic ultrasound against bacterial biofilms |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doaj.org/article/f254772cb4d14fde8f0f557f977d2873 |
work_keys_str_mv |
AT apurvadpatange inactivationefficacyofatmosphericairplasmaandairborneacousticultrasoundagainstbacterialbiofilms AT jeremycsimpson inactivationefficacyofatmosphericairplasmaandairborneacousticultrasoundagainstbacterialbiofilms AT jamesfcurtin inactivationefficacyofatmosphericairplasmaandairborneacousticultrasoundagainstbacterialbiofilms AT catherinemburgess inactivationefficacyofatmosphericairplasmaandairborneacousticultrasoundagainstbacterialbiofilms AT pjcullen inactivationefficacyofatmosphericairplasmaandairborneacousticultrasoundagainstbacterialbiofilms AT brijeshktiwari inactivationefficacyofatmosphericairplasmaandairborneacousticultrasoundagainstbacterialbiofilms |
_version_ |
1718393188129964032 |