Inactivation of yeast by dielectric barrier discharge (DBD) plasma in helium at atmospheric pressure

Hong, Yi; Xiu, Zhi Long; Ren, Chunsheng; Zhang, Jia Liang; Wang, De Zhen; Wang, You Nian; Cai, Teng

doi:10.1109/tps.2005.851961

Cited by 40 publications

(5 citation statements)

References 9 publications

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“…Direct DNA or oligonucleotide breakage was demonstrated when plasmid DNA was exposed to ARTP (Li et al 2008;Wang 2009). Although the details of the molecular mechanisms underlying the action of plasma on DNA in viable cells and the subsequent mutation are still unclear, the oxidative DNA damage caused by the diverse reactive oxygen species (ROS) generated by the reaction between the active chemical particles in the plasma jets and an aqueous solution is important in the effective mutation process (Chen et al 2010;Cooke et al 2003;Gaunt et al 2006;Yu et al 2005;Zhang et al 2014a). Previous studies have also demonstrated that some intracellular ROS and the end-products of lipid peroxidation, such as aldehydes, react with DNA either by the alkylation of bases or the formation of intra-and interstrand cross-links (Cooke et al 2003;Gaunt et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Quantitative evaluation of DNA damage and mutation rate by atmospheric and room-temperature plasma (ARTP) and conventional mutagenesis

Zhang

Zhou

et al. 2015

Appl Microbiol Biotechnol

110

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DNA damage is the dominant source of mutation, which is the driving force of evolution. Therefore, it is important to quantitatively analyze the DNA damage caused by different mutagenesis methods, the subsequent mutation rates, and their relationship. Atmospheric and room temperature plasma (ARTP) mutagenesis has been used for the mutation breeding of more than 40 microorganisms. However, ARTP mutagenesis has not been quantitatively compared with conventional mutation methods. In this study, the umu test using a flow-cytometric analysis was developed to quantify the DNA damage in individual viable cells using Salmonella typhimurium NM2009 as the model strain and to determine the mutation rate. The newly developed method was used to evaluate four different mutagenesis systems: a new ARTP tool, ultraviolet radiation, 4-nitroquinoline-1-oxide (4-NQO), and N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) mutagenesis. The mutation rate was proportional to the corresponding SOS response induced by DNA damage. ARTP caused greater DNA damage to individual living cells than the other conventional mutagenesis methods, and the mutation rate was also higher. By quantitatively comparing the DNA damage and consequent mutation rate after different types of mutagenesis, we have shown that ARTP is a potentially powerful mutagenesis tool with which to improve the characteristics of microbial cell factories.

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Section: Discussionmentioning

confidence: 99%

Quantitative evaluation of DNA damage and mutation rate by atmospheric and room-temperature plasma (ARTP) and conventional mutagenesis

Zhang

Zhou

et al. 2015

Appl Microbiol Biotechnol

110

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“…(1) The reactive particles of the plasma chemically attack the microorganisms and damage the cell structure in a non-repairable extend [7,[90][91][92][93][94][95]. (2) Electron bombardment creates pores in the cell walls, causing reactive particles to enter the cells directly and damage them [7,94,[96][97][98]. (3) Ions can damage DNA and membrane proteins, impede functions or denature the cell membrane [7,97].…”

Section: Disinfection and Sterilizationmentioning

confidence: 99%

Plasma Technology and Its Relevance in Waste Air and Waste Gas Treatment

Dobslaw¹,

Glocker²

2020

Sustainability

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Plasma technology is already used in various applications such as surface treatment, surface coating, reforming of carbon dioxide and methane, removal of volatile organic compounds, odor abatement and disinfection, but treatment processes described in this context do not go beyond laboratory and pilot plant scale. Exemplary applications of both non-thermal plasma and thermal plasma should underline the feasibility of scale-up to industrial application. A non-thermal plasma in modular form was built, which is designed for up to 1000 m³∙h−1 and was successfully practically tested in combination of non-thermal plasma (NTP), mineral adsorber and bio-scrubber for abatement of volatile organic components (VOCs), odorous substances and germs. Thermal plasmas are usually arc-heated plasmas, which are operated with different plasma gases such as nitrogen, oxygen, argon or air. In recent years steam plasmas were gradually established, adding liquid water as plasma gas. In the present system the plasma was directly operated with steam generated externally. Further progress of development of this system was described and critically evaluated towards performance data of an already commercially used water film-based system. Degradation rates of CF4 contaminated air of up to 100% where achieved in industrial scale.

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“…The buck topology implies that the source output current i out is equal to the inductance current i Lb , which, from the circuit theory, is function of the inductance voltage (4). Hence, the fact that i Lb is constant, implies that the DC component of (5) is zero, and consequently (6) must be respected.…”

Section: C) Inverter Input Voltage V Outmentioning

confidence: 99%

“…The UV is able to decontaminate because the UV photons deteriorate the DNA bases of microorganisms [2], [3]. The use of UV radiation presents notorious advantages over other methods based on the use of chlorides or other reagents; for example, the UV does not change the physic-chemical properties of foods or liquids, UV neither let chemical traces in the objects [4].…”

Section: Introductionmentioning

confidence: 99%

Programmable current converter synthesis for the evaluation of UV radiation of excimer lamps

2010

2010 Ieee Andescon

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This work proposes the development of a power supply for Dielectric Barrier Discharge (DBD) lamps, intended for the evaluation of a water treatment system based on UV radiation. The DBD excimer lamp is an attractive source of UV because of its cost and radiation power. The proposed converter is conceived to control the UV radiation by programming different lamp current intensities, duty cycles and frequencies.For the converter synthesis, a capacitive electric equivalent model of the DBD is used. A simulation of the converter and its control analysis is presented.

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Inactivation of yeast by dielectric barrier discharge (DBD) plasma in helium at atmospheric pressure

Cited by 40 publications

References 9 publications

Quantitative evaluation of DNA damage and mutation rate by atmospheric and room-temperature plasma (ARTP) and conventional mutagenesis

Quantitative evaluation of DNA damage and mutation rate by atmospheric and room-temperature plasma (ARTP) and conventional mutagenesis

Plasma Technology and Its Relevance in Waste Air and Waste Gas Treatment

Programmable current converter synthesis for the evaluation of UV radiation of excimer lamps

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