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Journal articles on the topic 'Nonthermal plasma discharges'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Naïtali, Murielle, Georges Kamgang-Youbi, Jean-Marie Herry, Marie-Noëlle Bellon-Fontaine, and Jean-Louis Brisset. "Combined Effects of Long-Living Chemical Species during Microbial Inactivation Using Atmospheric Plasma-Treated Water." Applied and Environmental Microbiology 76, no. 22 (October 1, 2010): 7662–64. http://dx.doi.org/10.1128/aem.01615-10.

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ABSTRACT Electrical discharges in humid air at atmospheric pressure (nonthermal quenched plasma) generate long-lived chemical species in water that are efficient for microbial decontamination. The major role of nitrites was evidenced together with a synergistic effect of nitrates and H2O2 and matching acidification. Other possible active compounds are considered, e.g., peroxynitrous acid.

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2

Birmingham, J. G. "Plasma Lysis for Identification of Bacterial Spores Using Ambient-Pressure Nonthermal Discharges." IEEE Transactions on Plasma Science 34, no. 4 (August 2006): 1270–74. http://dx.doi.org/10.1109/tps.2006.877740.

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3

Valdivia-Barrientos, R., J. Pacheco-Sotelo, M. Pacheco-Pacheco, A. Mercado-Cabrera, M. L. Jiménez-López, A. Cruz-Azocar, F. Ramos-Flores, M. Durán-García, and M. Hidalgo-Pérez. "Temperature evaluation of the nonthermal equilibrium of plasma discharges by OES analysis." Laser Physics 18, no. 3 (March 2008): 298–302. http://dx.doi.org/10.1134/s1054660x08030171.

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4

Mazurek, Paweł. "Chosen Aspects of the Electromagnetic Compatibility of Plasma Reactors with Gliding Arc Discharges." Applied Sciences 10, no. 11 (May 29, 2020): 3789. http://dx.doi.org/10.3390/app10113789.

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This paper presents an analysis of electromagnetic disturbance interactions inside the three-phase gliding arc plasma generation installation. This is the main part of the electromagnetic compatibility analysis of the reactor installation. All elements of the nonthermal plasma installation are described from the point of view of disturbance generation and their influence on the power supply system. The analysis is based on the results of tests carried out in accordance with the guidelines of the electromagnetic compatibility (EMC) Directive and harmonised standards. The disturbances measured are large, over 20 dB above the limits. The disturbances measured allow valid conclusions to be reached in relation to this type of installation. The implication is the need for plasma reactors designed with elements that reduce radiated and conducted interference.

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5

Malik, Muhammad Arif, Chunqi Jiang, Shirshak K. Dhali, Richard Heller, and Karl H. Schoenbach. "Coupled Sliding Discharges: A Scalable Nonthermal Plasma System Utilizing Positive and Negative Streamers on Opposite Sides of a Dielectric Layer." Plasma Chemistry and Plasma Processing 34, no. 4 (February 6, 2014): 871–86. http://dx.doi.org/10.1007/s11090-014-9528-2.

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6

Liu, Chang-jun, Jijun Zou, Kailu Yu, Dangguo Cheng, You Han, Jason Zhan, Chalita Ratanatawanate, and Ben W. L. Jang. "Plasma application for more environmentally friendly catalyst preparation." Pure and Applied Chemistry 78, no. 6 (January 1, 2006): 1227–38. http://dx.doi.org/10.1351/pac200678061227.

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The present status of catalyst preparation using nonthermal plasma treatment has been summarized in this paper. Improved dispersion, better low-temperature activity, enhanced stability, and better anti-carbon deposition performance can be achieved with nonthermal plasma-treated catalysts. The improvement in catalyst preparation with nonthermal plasma treatment can reduce or avoid the use of hazardous chemicals. Nonthermal plasma catalyst treatment has especially induced a new development of nonthermal plasma for catalyst reduction. The reduction using hydrogen at high temperatures or using hazardous liquid chemicals can be replaced by the developed plasma reduction process. The mechanism for nonthermal plasma treatment has been presented. An analog between the man-made gas discharge plasmas and the environment inside the zeolite pores and around catalyst surface defects is also proposed.

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7

Benard, N., and E. Moreau. "Separation Control by Single Nonthermal Plasma Discharge." IEEE Transactions on Plasma Science 39, no. 11 (November 2011): 2058–59. http://dx.doi.org/10.1109/tps.2011.2158587.

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8

Zhang, Lianshui, Xiaojun Wang, Weidong Lai, Xueliang Cheng, and Kuifang Zhao. "Removal Dynamics of Nitric Oxide (NO) Pollutant Gas by Pulse-Discharged Plasma Technique." Scientific World Journal 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/653576.

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Nonthermal plasma technique has drawn extensive attentions for removal of air pollutants such as NOxand SO2. The NO removal mechanism in pulse discharged plasma is discussed in this paper. Emission spectra diagnosis indicates that the higher the discharge voltage is, the more the NO are removed and transformed into O, N, N2, NO2, and so forth. Plasma electron temperatureTeis ranged from 6400 K at 2.4 kV discharge voltage to 9500 K at 4.8 kV. After establishing a zero-dimensional chemical reaction kinetic model, the major reaction paths are clarified as the electron collision dissociation of NO into N and O during discharge and followed by single substitution of N on NO to form N2during and after discharge, compared with the small fraction of NO2formed by oxidizing NO. The reaction directions can be adjusted by N2additive, and the optimal N2/NO mixing ratio is 2 : 1. Such a ratio not only compensates the disadvantage of electron competitive consumption by the mixed N2, but also heightens the total NO removal extent through accelerating the NO oxidization process.

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9

Liang, Wenjun, Huipin Sun, Xiujuan Shi, and Yuxue Zhu. "Abatement of Toluene by Reverse-Flow Nonthermal Plasma Reactor Coupled with Catalyst." Catalysts 10, no. 5 (May 7, 2020): 511. http://dx.doi.org/10.3390/catal10050511.

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In order to make full use of the heat in nonthermal plasma systems and decrease the generation of by-products, a reverse-flow nonthermal plasma reactor coupled with catalyst was used for the abatement of toluene. In this study, the toluene degradation performance of different reactors was compared under the same conditions. The mechanism of toluene abatement by nonthermal plasma coupled with catalyst was explored, combined with the generation of ozone (O3), NO2, and organic by-products during the reaction process. It was found that a long reverse cycle time of the reactor and a short residence time of toluene decreased the internal reactor temperature, which was not beneficial for the degradation of toluene. Compared with the dielectric barrier discharge (DBD) reactor, toluene degradation efficiency in the double dielectric barrier discharge (DDBD) reactor was improved at the same discharge energy level, but the concentrations of NO2 and O3 in the effluent were relatively high; this was improved after the introduction of a catalyst. In the reverse-flow nonthermal plasma reactor coupled with catalyst, the CO2 selectivity was the highest, while the selectivity and amount of NO2 was the lowest and aromatics, acids, and ketones were the main gaseous organic by-products in the effluent. The reverse-flow DBD-catalyst reactor was successful in decreasing organic by-products, while the types of organic by-products in the DDBD reactor were much more than those in the DBD reactor.

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10

Locke, B. R., M. Sato, P. Sunka, M. R. Hoffmann, and J. S. Chang. "Electrohydraulic Discharge and Nonthermal Plasma for Water Treatment." Industrial & Engineering Chemistry Research 45, no. 3 (February 2006): 882–905. http://dx.doi.org/10.1021/ie050981u.

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11

Czapka, Tomasz. "Back-Corona Discharge Phenomenon in the Nonthermal Plasma System." IEEE Transactions on Plasma Science 39, no. 11 (November 2011): 2242–43. http://dx.doi.org/10.1109/tps.2011.2155677.

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12

Karki, Surya B., Eda Yildirim-Ayan, Kathryn M. Eisenmann, and Halim Ayan. "Miniature Dielectric Barrier Discharge Nonthermal Plasma Induces Apoptosis in Lung Cancer Cells and Inhibits Cell Migration." BioMed Research International 2017 (2017): 1–12. http://dx.doi.org/10.1155/2017/8058307.

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Traditional cancer treatments like radiotherapy and chemotherapy have drawbacks and are not selective for killing only cancer cells. Nonthermal atmospheric pressure plasmas with dielectric barrier discharge (DBD) can be applied to living cells and tissues and have emerged as novel tools for localized cancer therapy. The purpose of this study was to investigate the different effects caused by miniature DBD (mDBD) plasma to A549 lung cancer cells. In this study, A549 lung cancer cells cultured in 12 well plates were treated with mDBD plasma for specified treatment times to assess the changes in the size of the area of cell detachment, the viability of attached or detached cells, and cell migration. Furthermore, we investigated an innovative mDBD plasma-based therapy for localized treatment of lung cancer cells through apoptotic induction. Our results indicate that plasma treatment for 120 sec causes apoptotic cell death in 35.8% of cells, while mDBD plasma treatment for 60 sec, 30 sec, or 15 sec causes apoptotic cell death in 20.5%, 14.1%, and 6.3% of the cell population, respectively. Additionally, we observed reduced A549 cell migration in response to mDBD plasma treatment. Thus, mDBD plasma system can be a viable platform for localized lung cancer therapy.

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13

Zhu, Tao, Wenjuan Zhao, Wenjing Zhang, Ni Xia, and Xiaoyang Li. "New Insights into Benzene Hydrocarbon Decomposition from Fuel Exhaust Using Self-Support Ray Polarization Plasma with Nano-TiO2." Journal of Nanomaterials 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/527194.

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A new insight into self-support ray polarization (SSRP) of nonthermal plasma for benzene hydrocarbon decomposition in fuel exhaust was put forward. A wire-tube dielectric barrier discharge (DBD) AC plasma reactor was used at atmospheric pressure and room temperature. The catalyst was made of nano-TiO2and ceramic raschig rings. Nano-TiO2was prepared as an active component by ourselves in the laboratory. Ceramic raschig rings were selected for catalyst support materials. Then, the catalyst was packed into nonthermal plasma (NTP) reactor. Six aspects, benzene initial concentration, gas flux, electric field strength, removal efficiency, ozone output, and CO2selectivity on benzene removal efficiency, were investigated. The results showed SSRP can effectively enhance benzene removal efficiency. The removal efficiency of benzene was up to 99% at electric field strength of 12 kV/cm. At the same time, SSRP decreases ozone yield and shows a better selectivity of CO2than the single technology of nonthermal plasma. The final products were mostly CO, CO2, and H2O. Our research will lay the foundation for SSRP industrial application in the future.

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14

Joshi, Suresh G., Moogega Cooper, Adam Yost, Michelle Paff, Utku K. Ercan, Gregory Fridman, Gary Friedman, Alexander Fridman, and Ari D. Brooks. "Nonthermal Dielectric-Barrier Discharge Plasma-Induced Inactivation Involves Oxidative DNA Damage and Membrane Lipid Peroxidation inEscherichia coli." Antimicrobial Agents and Chemotherapy 55, no. 3 (January 3, 2011): 1053–62. http://dx.doi.org/10.1128/aac.01002-10.

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ABSTRACTOxidative stress leads to membrane lipid peroxidation, which yields products causing variable degrees of detrimental oxidative modifications in cells. Reactive oxygen species (ROS) are the key regulators in this process and induce lipid peroxidation inEscherichia coli. Application of nonthermal (cold) plasma is increasingly used for inactivation of surface contaminants. Recently, we reported a successful application of nonthermal plasma, using a floating-electrode dielectric-barrier discharge (FE-DBD) technique for rapid inactivation of bacterial contaminants in normal atmospheric air (S. G. Joshi et al., Am. J. Infect. Control 38:293-301, 2010). In the present report, we demonstrate that FE-DBD plasma-mediated inactivation involves membrane lipid peroxidation inE. coli. Dose-dependent ROS, such as singlet oxygen and hydrogen peroxide-like species generated during plasma-induced oxidative stress, were responsible for membrane lipid peroxidation, and ROS scavengers, such as α-tocopherol (vitamin E), were able to significantly inhibit the extent of lipid peroxidation and oxidative DNA damage. These findings indicate that this is a major mechanism involved in FE-DBD plasma-mediated inactivation of bacteria.

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15

DIRKS, BRIAN P., DANIL DOBRYNIN, GREGORY FRIDMAN, YURI MUKHIN, ALEXANDER FRIDMAN, and JENNIFER J. QUINLAN. "Treatment of Raw Poultry with Nonthermal Dielectric Barrier Discharge Plasma To Reduce Campylobacter jejuni and Salmonella enterica." Journal of Food Protection 75, no. 1 (January 1, 2012): 22–28. http://dx.doi.org/10.4315/0362-028x.jfp-11-153.

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Nonthermal plasma has been shown to be effective in reducing pathogens on the surface of a range of fresh produce products. The research presented here investigated the effectiveness of nonthermal dielectric barrier discharge plasma on Salmonella enterica and Campylobacter jejuni inoculated onto the surface of boneless skinless chicken breast and chicken thigh with skin. Chicken samples were inoculated with antibiotic-resistant strains of S. enterica and C. jejuni at levels of 101 to 104 CFU and exposed to plasma for a range of time points (0 to 180 s in 15-s intervals). Surviving antibiotic-resistant pathogens were recovered and counted on appropriate agar. In order to determine the effect of plasma on background microflora, noninoculated skinless chicken breast and thighs with skin were exposed to air plasma at ambient pressure. Treatment with plasma resulted in elimination of low levels (101 CFU) of both S. enterica and C. jejuni on chicken breasts and C. jejuni from chicken skin, but viable S. enterica cells remained on chicken skin even after 20 s of exposure to plasma. Inoculum levels of 102,103, and 104 CFU of S. enterica on chicken breast and chicken skin resulted in maximum reduction levels of 1.85, 2.61, and 2.54 log, respectively, on chicken breast and 1.25, 1.08, and 1.31 log, respectively, on chicken skin following 3 min of plasma exposure. Inoculum levels of 102, 103, and 104 CFU of C. jejuni on chicken breast and chicken skin resulted in maximum reduction levels of 1.65, 2.45, and 2.45 log, respectively, on chicken breast and 1.42, 1.87, and 3.11 log, respectively, on chicken skin following 3 min of plasma exposure. Plasma exposure for 30 s reduced background microflora on breast and skin by an average of 0.85 and 0.21 log, respectively. This research demonstrates the feasibility of nonthermal dielectric barrier discharge plasma as an intervention to help reduce foodborne pathogens on the surface of raw poultry.

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16

Akishev, Yuri, Michail Grushin, Vladimir Karalnik, Nickolay Trushkin, Vasiliy Kholodenko, Vladimir Chugunov, Eugeniy Kobzev, Nadezhda Zhirkova, Irina Irkhina, and Georgiy Kireev. "Atmospheric-pressure, nonthermal plasma sterilization of microorganisms in liquids and on surfaces." Pure and Applied Chemistry 80, no. 9 (January 1, 2008): 1953–69. http://dx.doi.org/10.1351/pac200880091953.

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Gas discharge plasma inactivation of microorganisms at low (close to ambient) temperature is a promising area of investigation that is attracting widespread interest. This paper describes atmospheric-pressure, nonthermal plasma (NTP) methods for cold sterilization of liquids and thermal sensitive surfaces. These methods are based on the use of direct current (DC) gas discharge plasma sources fed with steady-state high voltage. Parameters characterizing the plasma sources used (plasma-forming gas, gas flow rate, electric power consumed, etc.) are given. The results for plasma sterilization of different microorganisms (vegetative cells, spores, fungi, biofilms) are presented. An empirical mathematical approach is developed for describing NTP inactivation of microorganisms. This approach takes into account not only the destruction of different components of the cells, but their reparation as well.

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17

Maliszewska, Irena, and Tomasz Czapka. "Biofouling Removal from Membranes Using Nonthermal Plasma." Energies 13, no. 17 (August 20, 2020): 4318. http://dx.doi.org/10.3390/en13174318.

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An essential aspect of wastewater treatment systems based on membranes is fouling, which leads to a decrease in their performance and durability. The membrane biofouling is directly related to the deposition of biological particles (e.g., microorganisms in the form of biofilm) on the membrane surface. The objective of the study was to investigate the possibility of using nonthermal plasma for membrane treatment to overcome the biofouling problem. The removal of biological cells from the membrane surface was performed in a dielectric barrier discharge (DBD) plasma. The biofoulant (i.e., activated sludge) on the surface of membranes was treated with plasma for 3–10 min, corresponding to a plasma dose of 13–42 J cm−2. Results of biofouling removal studies indicated that the process was very efficient (i.e., lethal effect was also observed) and dependent on the type of membrane and exposure time to the nonthermal plasma. Moreover, investigations of the influence of plasma treatment on extracellular polymeric substances of biofilms have confirmed the possibility of using plasma in the process of protein release from biological structures, which results in their destruction. It seems that plasma technologies can be part of the so-called hybrid methods of removing biological contamination of membranes used in wastewater treatment.

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18

Li, Yingying, Arben Kojtari, Gary Friedman, Ari D. Brooks, Alex Fridman, and Hai-Feng Ji. "Decomposition of l-Valine under Nonthermal Dielectric Barrier Discharge Plasma." Journal of Physical Chemistry B 118, no. 6 (February 4, 2014): 1612–20. http://dx.doi.org/10.1021/jp411440k.

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19

Hayashi, Nobuya, Kazuhiro Yamamoto, Satoshi Ihara, Masaki Kamatani, Saburoh Satoh, and Chobei Yamabe. "Treatment of Fluorocarbon Using Nonthermal Plasma Produced by Atmospheric Discharge." Japanese Journal of Applied Physics 41, Part 1, No. 8 (August 15, 2002): 5399–403. http://dx.doi.org/10.1143/jjap.41.5399.

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20

Teerakawanich, Nithiphat, Varakorn Kasemsuwan, Kulsawasd Jitkajornwanich, Weerawoot Kanokbannakorn, and Siwapon Srisonphan. "Microcorona Discharge-Mediated Nonthermal Atmospheric Plasma for Seed Surface Modification." Plasma Chemistry and Plasma Processing 38, no. 4 (May 9, 2018): 817–30. http://dx.doi.org/10.1007/s11090-018-9894-2.

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21

Agnihotri, Sandeep, Mark P. Cal, and Justin Prien. "Destruction of 1,1,1-Trichloroethane Using Dielectric Barrier Discharge Nonthermal Plasma." Journal of Environmental Engineering 130, no. 3 (March 2004): 349–55. http://dx.doi.org/10.1061/(asce)0733-9372(2004)130:3(349).

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22

Liu, Kun, Fei Tang, and Xiao Hao Wang. "Generation and Application of the Atmospheric Pressure DC Glow Discharge Using Minor Electrodes under N2 Flow." Key Engineering Materials 483 (June 2011): 765–69. http://dx.doi.org/10.4028/www.scientific.net/kem.483.765.

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A new discharge system which can generate stable atmospheric pressure DC glow discharge is reported in this paper. The system is made up of an inner line electrode and an outer cylinder-like electrode. The radii of the inner and outer electrodes are only 0.08 and 2 mm, respectively. The transition from corona discharge to glow discharge is observed. The experiments show that the discharge has typical features of normal glow discharge and can produce nonthermal plasma. It has been used as an ambient ion source, and chemicals such as formic acid, acetic acid, phenol, and benzoic acid can be ionized well.

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23

Roy, NC, and MR Talukder. "Electrical and Spectroscopic Diagnostics of Atmospheric Pressure DBD Plasma Jet." Journal of Bangladesh Academy of Sciences 40, no. 1 (June 22, 2016): 23–36. http://dx.doi.org/10.3329/jbas.v40i1.28322.

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Atmospheric pressure capillary dielectric barrier oxygen discharge plasma jet is developed to generate nonthermal plasma using unipolar positive pulse power supply. Both electrical and optical diagnostic techniques were used to characterize the produced plasma as functions of applied voltage and gas flow rate. Electrical diagnostics indicated that the discharge frequency decreased with gas flow rate but increased with the applied voltage. Analytical results obtained from the optical emission spectroscopic data revealed the gas temperature, excitation temperature and electron density. Gas temperature was found to decrease with increasing oxygen flow rate but increase linearly with applied voltage. The produced plasma was applied preliminarily to study the inactivation yield of Fusarium oxysporum fungus infected potato samples.Journal of Bangladesh Academy of Sciences, Vol. 40, No. 1, 23-36, 2016

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24

Mucko, Jan, Robert Dobosz, and Ryszard Strzelecki. "Dielectric Barrier Discharge Systems with HV Generators and Discharge Chambers for Surface Treatment and Decontamination of Organic Products." Energies 13, no. 19 (October 5, 2020): 5181. http://dx.doi.org/10.3390/en13195181.

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The article presents applications of systems with power electronic converters, high voltage transformers, and discharge chambers used for nonthermal, dielectric barrier discharge plasma treatment of a plastic surface and decontamination of organic loose products. In these installations, the inductance of the high voltage transformers and the capacitances of the electrode sets form resonant circuits that are excited by inverters. The article presents characteristic features of the installations and basic mathematical relationships as well as the impact of individual parameters of system components. These converters with their output installations were designed, built, and tested by the authors. Some of the converters developed by the authors are manufactured and used in the industry.

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Akter, Mahmuda, Dharmendra Kumar Yadav, Se Hoon Ki, Eun Ha Choi, and Ihn Han. "Inactivation of Infectious Bacteria Using Nonthermal Biocompatible Plasma Cabinet Sterilizer." International Journal of Molecular Sciences 21, no. 21 (November 6, 2020): 8321. http://dx.doi.org/10.3390/ijms21218321.

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Nonthermal, biocompatible plasma (NBP) is a promising unique state of matter that is effective against a wide range of pathogenic microorganisms. This study focused on a sterilization method for bacteria that used the dielectric barrier discharge (DBD) biocompatible plasma cabinet sterilizer as an ozone generator. Reactive oxygen species play a key role in inactivation when air or other oxygen-containing gases are used. Compared with the untreated control, Escherichia coli(E. coli), Staphylococcus aureus (S. aureus), and Salmonella typhimurium (sepsis) were inhibited by approximately 99%, or were nondetectable following plasma treatment. Two kinds of plasma sterilizers containing six- or three-chamber cabinets were evaluated. There was no noticeable difference between the two configurations in the inactivation of microorganisms. Both cabinet configurations were shown to be able to reduce microbes dramatically, i.e., to the nondetectable range. Therefore, our data indicate that the biocompatible plasma cabinet sterilizer may prove to be an appropriate alternative sterilization procedure.

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26

Arda, Gede, and Chuang Liang Hsu. "NONTHERMAL PLASMA: A REVIEW ON ITS PROSPECTS ON FOOD PROCESSING." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 9, no. 1 (March 31, 2020): 48. http://dx.doi.org/10.23960/jtep-l.v9i1.48-54.

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Bringing plasma into food processing is a relatively new measure for food engineer and scientist. It is simple in generation, low energy requirement, high efficacy, and easy to apply, pave its way to be a new prospective scenario in processing more safety food recently. Plasma is the fourth matter after solid, liquid and gas contain various reactive species generated by electrical discharge from 10-120kV. Those are Reactive Oxygen and Nitrogen (RONS) comprising various reactive species including nitric oxide (NO), superoxide (O2-), hydrogen peroxide (H2O2); singlet oxygen (1O2); ozone (O3) and even hydroxyl radical (-OH) which can and do play important roles in biological systems. This brief review describes plasma interaction with the biological system and pesticides compound and sums up some finding on the nonthermal application on two main consideration of food safety namely microorganisms decontamination and pesticides residue degradation.

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Kalghatgi, Sameer U., Gregory Fridman, Moogega Cooper, Gayathri Nagaraj, Marie Peddinghaus, Manjula Balasubramanian, Victor N. Vasilets, Alexander F. Gutsol, Alexander Fridman, and Gary Friedman. "Mechanism of Blood Coagulation by Nonthermal Atmospheric Pressure Dielectric Barrier Discharge Plasma." IEEE Transactions on Plasma Science 35, no. 5 (October 2007): 1559–66. http://dx.doi.org/10.1109/tps.2007.905953.

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28

Misra, N. N., Carl Sullivan, S. K. Pankaj, Laura Alvarez-Jubete, Raquel Cama, Frank Jacoby, and P. J. Cullen. "Enhancement of oil spreadability of biscuit surface by nonthermal barrier discharge plasma." Innovative Food Science & Emerging Technologies 26 (December 2014): 456–61. http://dx.doi.org/10.1016/j.ifset.2014.10.001.

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29

Palma, Vincenzo, Marta Cortese, Simona Renda, Concetta Ruocco, Marco Martino, and Eugenio Meloni. "A Review about the Recent Advances in Selected NonThermal Plasma Assisted Solid–Gas Phase Chemical Processes." Nanomaterials 10, no. 8 (August 14, 2020): 1596. http://dx.doi.org/10.3390/nano10081596.

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Plasma science has attracted the interest of researchers in various disciplines since the 1990s. This continuously evolving field has spawned investigations into several applications, including industrial sterilization, pollution control, polymer science, food safety and biomedicine. nonthermal plasma (NTP) can promote the occurrence of chemical reactions in a lower operating temperature range, condition in which, in a conventional process, a catalyst is generally not active. The aim, when using NTP, is to selectively transfer electrical energy to the electrons, generating free radicals through collisions and promoting the desired chemical changes without spending energy in heating the system. Therefore, NTP can be used in various fields, such as NOx removal from exhaust gases, soot removal from diesel engine exhaust, volatile organic compound (VOC) decomposition, industrial applications, such as ammonia production or methanation reaction (Sabatier reaction). The combination of NTP technology with catalysts is a promising option to improve selectivity and efficiency in some chemical processes. In this review, recent advances in selected nonthermal plasma assisted solid–gas processes are introduced, and the attention was mainly focused on the use of the dielectric barrier discharge (DBD) reactors.

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30

Yuji, Toshifumi, Kenichi Nakabayashi, Hiroyuki Kinoshita, Narong Mungkung, Yoshifumi Suzaki, Sarizam Mamat, and Hiroshi Akatsuka. "Development of Decontamination Treatment Techniques for Dry Powder Foods by Atmospheric-Pressure Nonequilibrium DC Pulse Discharge Plasma Jet." Journal of Food Quality 2021 (July 24, 2021): 1–7. http://dx.doi.org/10.1155/2021/8896716.

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Dry powder food ingredients imported to Japan contain large amounts of viable bacteria and coliform bacteria, and we need a simple, low-cost, dry nonthermal decontamination method without spoiling nutrients, color, fragrance, and flavor. In this study, it is shown that the decontamination performance against viable bacteria and coliform bacteria is proportional to the plasma irradiation time when OH and O3 radicals are incident on the dry powder food ingredients placed in an atmospheric-pressure nonequilibrium DC pulse discharge Ar + O2 mixture gas plasma jet. Our study revealed that there is a correlation between the plasma irradiation time and DC pulse frequency increase and the decontamination effect on the general bacterial count.

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31

Suzuki, Kotaro, and Daisuke Yoshino. "Proliferation-Related Activity in Endothelial Cells Is Enhanced by Micropower Plasma." BioMed Research International 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/4651265.

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Nonthermal plasma has received a lot of attention as a medical treatment technique in recent years. It can easily create various reactive chemical species (ROS) and is harmless to living body. Although plasma at gas-liquid interface has a potential for a biomedical application, the interactions between the gas-liquid plasma and living cells remain unclear. Here, we show characteristics of a micropower plasma with 0.018 W of the power input, generated at gas-liquid interface. We also provide the evidence of plasma-induced enhancement in proliferation activity of endothelial cells. The plasma produced H2O2, HNO2, and HNO3in phosphate buffered saline containing Mg++and Ca++(PBS(+)), and their concentration increased linearly during 600-second discharge. The value of pH in PBS(+) against the plasma discharge time was stable at about 7.0. Temperature in PBS(+) rose monotonically, and its rise was up to 0.8°C at the bottom of a cell-cultured dish by the plasma discharge for 600 s. Short-time treatment of the plasma enhanced proliferation activity of endothelial cells. In contrast, the treatment of H2O2does not enhance the cell proliferation. Thus, the ROS production and the nuclear factor-kappa B (NF-κB) activation due to the plasma treatment might be related to enhancement of the cell proliferation. Our results may potentially provide the basis for developing the biomedical applications using the gas-liquid plasma.

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32

Li, Yingying, Arben Kojtari, Gennadi Friedman, Ari D. Brooks, Alex Fridman, Suresh G. Joshi, and Hai-Feng Ji. "Oxidation of N-Acetylcysteine (NAC) under Nanosecond-Pulsed Nonthermal Dielectric Barrier Discharge Plasma." Plasma Medicine 6, no. 3-4 (2016): 265–72. http://dx.doi.org/10.1615/plasmamed.2016018884.

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33

Li, Ying, Eun Ha Choi, and Ihn Han. "Regulation of Redox Homeostasis by Nonthermal Biocompatible Plasma Discharge in Stem Cell Differentiation." Oxidative Medicine and Cellular Longevity 2019 (March 31, 2019): 1–15. http://dx.doi.org/10.1155/2019/2318680.

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Recently, a growing body of evidence has shown the role of reactive species as secondary messengers in cell proliferation and differentiation, as opposed to the harmful metabolism byproducts that they were previously solely recognized as. Thus, the balance of intracellular reduction-oxidation (redox) homeostasis plays a vital role in the regulation of stem cell self-renewal and differentiation. Nonthermal biocompatible plasma (NBP) has emerged as a novel tool in biomedical applications. Recently, NBP has also emerged as a powerful tool in the tissue engineering field for the surface modification of biomaterial and the promotion of stem cell differentiation by the regulation of intracellular redox biology. NBP can generate various kinds of reactive oxygen species (ROS) and reactive nitrogen species (RNS), which may play the role of the second passenger in the cell signaling network and active antioxidant system in cells. Herein, we review the current knowledge on mechanisms by which NBP regulates cell proliferation and differentiation through redox modification. Considering the importance of redox homeostasis in the regulation of stem cell differentiation, understanding the underlying molecular mechanisms involved will provide important new insights into NBP-induced stem cell differentiation for tissue engineering.

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Young Sun Mok, Chang Mo Nam, Moo Hyun Cho, and In-Sik Nam. "Decomposition of volatile organic compounds and nitric oxide by nonthermal plasma discharge processes." IEEE Transactions on Plasma Science 30, no. 1 (February 2002): 408–16. http://dx.doi.org/10.1109/tps.2002.1003889.

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Young Sun Mok, V. Ravi, Ho-Chul Kang, and B. S. Rajanikanth. "Abatement of nitrogen oxides in a catalytic reactor enhanced by nonthermal plasma discharge." IEEE Transactions on Plasma Science 31, no. 1 (February 2003): 157–65. http://dx.doi.org/10.1109/tps.2003.808876.

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36

Hayashi, N., and S. Satoh. "Treatment of a perfluorocarbon using nonthermal plasma produced by atmospheric streamer corona discharge." IEEE Transactions on Plasma Science 33, no. 2 (April 2005): 274–75. http://dx.doi.org/10.1109/tps.2005.845003.

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Liu, Lu, and Xiaofei Philip Ye. "Nonthermal Plasma Induced Fabrication of Solid Acid Catalysts for Glycerol Dehydration to Acrolein." Catalysts 11, no. 3 (March 19, 2021): 391. http://dx.doi.org/10.3390/catal11030391.

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The feasibility of fabricating better solid acid catalysts using nonthermal plasma (NTP) technology for biobased acrolein production is demonstrated. NTP discharge exposure was integrated in catalyst fabrication in air or argon atmosphere. The fabricated catalysts were characterized by Brunauer–Emmett–Teller surface area analysis, temperature-programmed desorption of ammonia, X-ray powder diffraction and Fourier-transform infrared spectroscopy of pyridine adsorption, in comparison to regularly prepared catalysts as a control. Further, kinetic results collected via glycerol dehydration experiments were compared, and improvement in acrolein selectivity was displayed when the catalyst was fabricated in the argon NTP, but not in the air NTP. Possible mechanisms for the improvement were also discussed.

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Sysolyatina, Elena V., Andrey Mukhachev, Maria Yurova, Mikhail Grushin, Vladimir Karal'nik, Alexander Petryakov, Nikolai Trushkin, et al. "Experimental Evidences on Synergy of Gas Discharge Agents in Bactericidal Activity of Nonthermal Plasma." Plasma Medicine 3, no. 1-2 (2013): 137–52. http://dx.doi.org/10.1615/plasmamed.2014008194.

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39

Moon, Jae-Duk, Geun-Taek Lee, and Sang-Taek Geum. "Discharge and NOx removal characteristics of nonthermal plasma reactor with a heated corona wire." Journal of Electrostatics 50, no. 1 (September 2000): 1–15. http://dx.doi.org/10.1016/s0304-3886(00)00011-5.

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OKUBO, Masaaki, Yuji HIROYASU, and Tomoyuki KUROKI. "Ions Cluster Formation by Nonthermal Plasma Induced by Corona Discharge Toward Indoor Air Cleaning." Proceedings of the Symposium on Environmental Engineering 2019.29 (2019): J304. http://dx.doi.org/10.1299/jsmeenv.2019.29.j304.

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Khamsen, Natthaporn, Damrongvudhi Onwimol, Nithiphat Teerakawanich, Sanchai Dechanupaprittha, Weerawoot Kanokbannakorn, Komsan Hongesombut, and Siwapon Srisonphan. "Rice (Oryza sativaL.) Seed Sterilization and Germination Enhancement via Atmospheric Hybrid Nonthermal Discharge Plasma." ACS Applied Materials & Interfaces 8, no. 30 (July 20, 2016): 19268–75. http://dx.doi.org/10.1021/acsami.6b04555.

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Feng, Zongbao, Noboru Saeki, Tomoyuki Kuroki, Mitsuru Tahara, and Masaaki Okubo. "Surface modification by nonthermal plasma induced by using magnetic-field-assisted gliding arc discharge." Applied Physics Letters 101, no. 4 (July 23, 2012): 041602. http://dx.doi.org/10.1063/1.4738766.

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43

Ko, Ranyoung, Mani Sanjeeva Gandhi, Sang Baek Lee, and Young Sun Mok. "Characteristics of Sr2SiO4:Eu2+Green Phosphor Synthesized in the Presence of Nonthermal Plasma Discharge." Molecular Crystals and Liquid Crystals 564, no. 1 (September 19, 2012): 1–9. http://dx.doi.org/10.1080/15421406.2012.690632.

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44

Choi, Man-Seok, Eun Bi Jeon, Ji Yoon Kim, Eun Ha Choi, Jun Sup Lim, Jinsung Choi, Kwang Soo Ha, Ji Young Kwon, Sang Hyeon Jeong, and Shin Young Park. "Virucidal Effects of Dielectric Barrier Discharge Plasma on Human Norovirus Infectivity in Fresh Oysters (Crassostrea gigas)." Foods 9, no. 12 (November 25, 2020): 1731. http://dx.doi.org/10.3390/foods9121731.

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This study investigates the effects of dielectric barrier discharge (DBD) plasma treatment (1.1 kV, 43 kHz, N2 1.5 L/min, 10~60 min) on human norovirus (HuNoV) GII.4 infectivity in fresh oysters. HuNoV viability in oysters was assessed by using propidium monoazide (PMA) as a nucleic acid intercalating dye before performing a real-time reverse transcription–quantitative polymerase chain reaction (RT-qPCR). Additionally, the impact of the DBD plasma treatment on pH and Hunter colors was assessed. When DBD plasma was treated for 60 min, the HuNoV genomic titer reduction without PMA pretreatment was negligible (<1 log copy number/µL), whereas when PMA treatment was used, HuNoV titer was reduced to >1 log copy number/µL in just 30 min. D1 and D2-value of HuNoV infectivity were calculated as 36.5 and 73.0 min of the DBD plasma treatment, respectively, using the first-order kinetics model (R2 = 0.98). The pH and Hunter colors were not significantly different (p > 0.05) between the untreated and DBD-plasma-treated oysters. The results suggest that PMA/RT-qPCR could help distinguish HuNoV infectivity without negatively affecting oyster quality following >30 min treatment with DBD plasma. Moreover, the inactivation kinetics of nonthermal DBD plasma against HuNoV in fresh oysters might provide basic information for oyster processing and distribution.

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Chuang, Yun-Ju, Ming-Chen Wang, and Pei-Ru Chen. "Effects of a Nonthermal Atmospheric Pressure Plasma Discharged in Cell Culture Medium on Melanoma Cell." International Journal of Bioscience, Biochemistry and Bioinformatics 9, no. 2 (2019): 126–33. http://dx.doi.org/10.17706/ijbbb.2019.9.2.126-133.

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Xie, Deyuan, Ye Sun, Tianle Zhu, Liyuan Hou, and Xiaowei Hong. "Nitric Oxide Oxidation and Its Removal in Mist by Nonthermal Plasma: Effects of Discharge Conditions." Industrial & Engineering Chemistry Research 56, no. 39 (September 25, 2017): 11336–43. http://dx.doi.org/10.1021/acs.iecr.7b02329.

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Okubo, Masaaki, Yuji Hiroyasu, and Tomoyuki Kuroki. "Ion Cluster Formation by Nonthermal Plasma Induced by Pulse Corona Discharge Toward Indoor Air Cleaning." IEEE Transactions on Industry Applications 56, no. 5 (September 2020): 5480–88. http://dx.doi.org/10.1109/tia.2020.3010703.

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Kuwahara, Takuya, Tomoyuki Kuroki, Keiichiro Yoshida, Noboru Saeki, and Masaaki Okubo. "Development of sterilization device using air nonthermal plasma jet induced by atmospheric pressure corona discharge." Thin Solid Films 523 (November 2012): 2–5. http://dx.doi.org/10.1016/j.tsf.2012.05.064.

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Penetrante, B. M., M. C. Hsiao, B. T. Merritt, G. E. Vogtlin, and P. H. Wallman. "Comparison of electrical discharge techniques for nonthermal plasma processing of NO in N/sub 2/." IEEE Transactions on Plasma Science 23, no. 4 (1995): 679–87. http://dx.doi.org/10.1109/27.467990.

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Ma, Tianpeng, Qiong Zhao, Jianqi Liu, and Fangchuan Zhong. "Study of Humidity Effect on Benzene Decomposition by the Dielectric Barrier Discharge Nonthermal Plasma Reactor." Plasma Science and Technology 18, no. 6 (June 2016): 686–92. http://dx.doi.org/10.1088/1009-0630/18/6/17.

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