Inactivation of bacteria by non thermal plasma
Inactivation of bacteria by non thermal plasma
... et al., 2006)]. www.intechopen.com Inactivation of Bacteria by Non- Thermal Plasmas 43 Fig. 15. Photograph of the microwave plasma torch with six plasma zones [Reprinted with permission ... www.intechopen.com2 Inactivation of Bacteria by Non- Thermal Plasmas R. Morent and N. De Geyter Research Unit Plasma Technology – Department of Applied Physics Faculty of Engineering and ... microwave plasmas in an N-2 and O-2 gas mixture. New Journal of Physics, 11. www.intechopen.com Inactivation of Bacteria by Non- Thermal Plasmas 53 Sladek, R. E. J., Baede, T. A. & Stoffels,...
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The roles of the various plasma agents in the inactivation of bacteria
... in the inactivation process. © 2008 American Institute of Physics.͓DOI: 10.1063/1.2977674͔I. INTRODUCTIONOne of the most attractive features of nonequilibriumplasmas is their enhanced plasma ... significant effect on the inactivation of bacteria, which isnot fulfilled for atmospheric pressure air plasma. 27The effect of heat is normally avoided when the gas temperature of the plasma is at room ... developed plasma jet device,which generates a cold plasma plume with high dischargecurrent, is used to investigate the contribution of the chargedparticles to the inactivation of bacteria. The plasma...
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Using Non-Thermal Plasma to Control Air Pollutants pot
... ivTABLE OF CONTENTS vINTRODUCTION 1THE PROCESS 3What is Non- Thermal Plasma? 3What is the Status of Non- Thermal Plasma Research and Development? . 4Powerspan Corporation 4BOC Gases 6COST OF NON- THERMAL ... University of Minnesota, Non- Thermal Plasma Pasteurization of Liquid Food,” by S. Denget al., presented at the 2003 International Food Technology Annual Meeting, Chicago.5. Non Thermal Plasma ... not available.-9-COST OF NON- THERMAL PLASMA The problem with determining the cost of a new control technology is the lack of publicinformation. So it is with non- thermal plasma. One reference...
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Inactivation of gram negative bacteria by low pressure RF remote plasma excited in n2 o2 mixture and SF6 gases
... elimination of 109 CFU/ml of each tested bacterial isolate (using O2-N2 plasma mixture at 300 W) are shown in gures 1, 2, and 3. Figure 1 illustrates the inuence of plasma pressure on bacterial ... Brief Report335 Role of RF remote plasma in bacterial inactivation Iran J Med Sci December 2013; Vol 38 No 4 Materials and Methods Plasma System The experimental set-up of the HCD-L 300 system ... Gram-Negative Bacteria by Low-Pressure RF Remote Plasma Excited in N2-O2 Mixture and SF6 Gases. Iran J Med Sci. 2013;38(4):334-338.Keywords ● Bacteria ● Inactivation ● Low pressure ● Plasma...
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Tài liệu Báo cáo khoa học: Prevention of thermal inactivation and aggregation of lysozyme by polyamines docx
... Prevention of thermal inactivation and aggregation of lysozyme by polyaminesMotonori Kudou1, Kentaro Shiraki1, Shinsuke Fujiwara2, Tadayuki Imanaka3and Masahiro Takagi11School of Materials ... (h); or spermine (j).Ó FEBS 2003 Prevention of thermal aggregation by polyamines (Eur. J. Biochem. 270) 4549Heat inactivation of lysozymeThe recovery of enzymatic activity after heat treatment ... mainly stabilized by covalent bonds (probablydisulfide exchanges) rather than by noncovalent inter-actions.In the presence of 100 mMputrescine, the inactivation curves of 0.2 and 1.0 mgÆmL)1lysozyme...
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Elucidation of levels of bacteria viability post non equilibrium dielectric barrier discharge plasma treatment
... s and 60 s are the plasma treatment times. 101 Figure 56. SEM images of 120 sec of plasma treatment of dry B. stratosphericus shows etching of bacteria. Etching of the bacterial membrane is ... Complete destruction of chromosomal DNA by DBD plasma after 2 sec plasma treatment 99 Figure 54. Lane spectra of treated chromosomal DNA by plasma shows removal with 2 sec DBD plasma treatment ... that non- thermal plasma has the ability to completely destroy bacteria to the DNA level on the surface of spacecraft materials without thermal degradation of the material. This is achieved by...
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Treatment of enterococcus faecalis bacteria by a helium atmospheric cold plasma brush with oxygen addtion
... inacti-vation of Enterococcus faecalis bacteria by means of anatmospheric cold plasma brush driven by an ac powersupplier. The influences of oxygen addition into the heliumatmospheric plasma brush ... Sterilization effect of atmospheric cold plasma brushFigure 3 shows the change of the survival curves of Enterococcus faecalis bacteria in the He with addition of dif-ferent amounts of O2(1%, 2.5%, ... electron micrographs of Enterococ-cus faecalis bacteria of (a) untreated control, (b) helium plasma treatment, (c) He þ 1% O2 plasma treatment,(d) He þ 2.5% O2 plasma treatment. Plasma conditionswere...
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Inactivation of Giardia lamblia cysts by UV irradiation in real field waters
... and extent of inactivation of G. lamblia cysts by several doses of both LP and medium pressure (MP) UV in buffered and real field waters in order to determine the effectiveness of these UV ... et al, 2002, Mofidi et al, 2002, Campbell et al, 2002). In fact, the required UV doses to achieve significant inactivation of this microorganism are as low as those of enteric bacteria and far ... MPN log reductions of each experiment performed. The inactivation of G. lamblia cysts by LP UV was very rapid in both PBS and the filtered water and more than 4 log10 inactivation was achieved...
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Inactivation of microorganisms in untreated water by a continuous flow system with supercritical CO2 bubbling
... present result was obtained by the difference of the penetration of CO2 into the bacterial cells. Since it is stated by law that the number of coliform and total bacteria must be kept less ... enzyme inactivation by the SC-CO2 treatment was caused by irreversible destruction of the α-helix structure of protein enzyme. Ballestra et al. (1996) suggested that selective inactivation of ... found that a possible leakage of cytoplasm was caused by the modification of the cell membrane of L. plantarum by pressurized CO2. In our present results, the leakage of cytoplasm could not be...
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Tài liệu Báo cáo khóa học: Inactivation of copper-containing amine oxidases by turnover products doc
... formation of the350 nm band, was induced by some aldehydes, notablyputrescine. Some mechanisms of inactivation are proposed.Keywords: copper amine oxidase; trihydroxyphenylalaninequinone; inactivation; ... cuvette closed by a Teflon stopper. The oxygen was consumed by mostsubstrates within the mixing time as revealed by theimmediate bleaching of the TPQ 500 nm band and by theappearance of absorption ... to identify the modification induced by H2O2, butthe similarity of the behavior of several amine oxidasessuggested that it consists of the oxidation of a conservedresidue at the active...
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