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Low pressure plasma inactivation of Bacillus subtilis spores: insights into the mechanisms of spore resistance

Raguse, M. and Fiebrandt, M. and Stapelmann, K. and Awakowicz, P. and Eaton, P. and Eichenberger, P. and Douki, T. and Moeller, R. (2016) Low pressure plasma inactivation of Bacillus subtilis spores: insights into the mechanisms of spore resistance. 6th International Conference on Plasma Medicine (ICPM-6), 4.-9. September 2016, Bratislava, Slovakia.

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Abstract

Being the most resistant form of a biological system, spores of Bacillus subtilis are very resistant against a broad spectrum of sterilization methods and, therefore, are commonly used as a biological indicator in order to verify the functionality of a sterilization procedure. The process of low-pressure plasma sterilization is a promising alternative to conventional sterilization methods as it is extremely fast, efficient and gentle to heat-sensitive materials. Active plasma species contain a high degree of sporicidal UV/VUV-radiation, as well as charged particles and free radicals, which exert detrimental effects on microorganisms. In this study we present novel insights into the key factors involved in spore inactivation by low pressure plasma sterilization using a double inductively-coupled plasma reactor.

Item URL in elib:https://elib.dlr.de/106093/
Document Type:Conference or Workshop Item (Poster)
Title:Low pressure plasma inactivation of Bacillus subtilis spores: insights into the mechanisms of spore resistance
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Raguse, M.German Aerospace Center, Institute of Aerospace Medicine, Radiation Biology Department, Space Microbiology Research Group, Cologne, GermanyUNSPECIFIED
Fiebrandt, M.Ruhr-University Bochum, Institute of Electrical Engineering and Plasma Technology, Bochum, GermanyUNSPECIFIED
Stapelmann, K.Ruhr-University Bochum, Institute of Electrical Engineering and Plasma Technology, Bochum, GermanyUNSPECIFIED
Awakowicz, P.Ruhr-University Bochum, Institute of Electrical Engineering and Plasma Technology, Bochum, GermanyUNSPECIFIED
Eaton, P.UCIBIO / Requimte, Faculty of Sciences of the University of Porto, Porto, PortugalUNSPECIFIED
Eichenberger, P.New York University, Center of Genomics and System Biology, New York City, New York, USAUNSPECIFIED
Douki, T.Département de Recherche Fondamentale sur la Matière Condensée CEA-Grenoble, Service de Chimie Inorganique et Biologique, Grenoble, FranceUNSPECIFIED
Moeller, R.German Aerospace Center, Institute of Aerospace Medicine, Radiation Biology Department, Space Microbiology Research Group, Cologne, GermanyUNSPECIFIED
Date:2016
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Bacillus subtilis spores, sterilization methods, low pressure plasma sterilization
Event Title:6th International Conference on Plasma Medicine (ICPM-6)
Event Location:Bratislava, Slovakia
Event Type:international Conference
Event Dates:4.-9. September 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Strahlenbiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:10 Oct 2016 15:49
Last Modified:31 Jul 2019 20:03

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