Effect of metal salts on high‐voltage atmospheric cold plasma‐induced polymerization of acrylamide

2021 ◽  
pp. 52072
Author(s):  
Christine Hood ◽  
Vanessa Rios de Souza ◽  
Kevin Keener ◽  
Alejandro G. Marangoni ◽  
Erica Pensini
Keyword(s):  
High Voltage ◽  
Cold Plasma ◽  
Metal Salts

Penetration and Microbial Inactivation by High Voltage Atmospheric Cold Plasma in Semi-Solid Material

2020 ◽  
Vol 13 (10) ◽  
pp. 1688-1702
Author(s):  
Lei Xu ◽  
Ximena Yepez ◽  
Bruce Applegate ◽  
Kevin M Keener ◽  
Bernard Tao ◽  
...  
Keyword(s):  
High Voltage ◽  
Cold Plasma ◽  
Solid Material ◽  
Microbial Inactivation ◽  
Semi Solid

High-voltage and high-frequency inverter controlled by DPLL for cold plasma applications

2005 ◽  
Vol 92 (6) ◽  
pp. 327-340 ◽  
Author(s):  
O. Godoy-Cabrera ◽  
R. López-Callejas * ◽  
J. S. Benítez-Read ◽  
J. O. Pacheco-Sotelo ◽  
A. de la Piedad-Beneitez
Keyword(s):  
High Voltage ◽  
High Frequency ◽  
Cold Plasma ◽  
Plasma Applications ◽  
Frequency Inverter

scholarly journals Mechanisms of Inactivation by High-Voltage Atmospheric Cold Plasma Differ for Escherichia coli and Staphylococcus aureus

2015 ◽  
Vol 82 (2) ◽  
pp. 450-458 ◽  
Author(s):  
L. Han ◽  
S. Patil ◽  
D. Boehm ◽  
V. Milosavljević ◽  
P. J. Cullen ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
High Voltage ◽  
Dna Cleavage ◽  
Cold Plasma ◽  
Treatment Time ◽  
Enzyme Inactivation ◽  
Content Type ◽  
Intracellular Ros ◽  
Wide Range

ABSTRACTAtmospheric cold plasma (ACP) is a promising nonthermal technology effective against a wide range of pathogenic microorganisms. Reactive oxygen species (ROS) play a crucial inactivation role when air or other oxygen-containing gases are used. With strong oxidative stress, cells can be damaged by lipid peroxidation, enzyme inactivation, and DNA cleavage. Identification of ROS and an understanding of their role are important for advancing ACP applications for a range of complex microbiological issues. In this study, the inactivation efficacy of in-package high-voltage (80 kV [root mean square]) ACP (HVACP) and the role of intracellular ROS were investigated. Two mechanisms of inactivation were observed in which reactive species were found to either react primarily with the cell envelope or damage intracellular components.Escherichia coliwas inactivated mainly by cell leakage and low-level DNA damage. Conversely,Staphylococcus aureuswas mainly inactivated by intracellular damage, with significantly higher levels of intracellular ROS observed and little envelope damage. However, for both bacteria studied, increasing treatment time had a positive effect on the intracellular ROS levels generated.

scholarly journals Improving microbiological safety and quality characteristics of wheat and barley by high voltage atmospheric cold plasma closed processing

2018 ◽  
Vol 106 ◽  
pp. 509-521 ◽  
Author(s):  
Agata Los ◽  
Dana Ziuzina ◽  
Simen Akkermans ◽  
Daniela Boehm ◽  
Patrick J. Cullen ◽  
...  
Keyword(s):  
High Voltage ◽  
Cold Plasma ◽  
Quality Characteristics ◽  
Microbiological Safety

scholarly journals Degradation kinetics of organic dyes in water by high voltage atmospheric air and modified air cold plasma

2017 ◽  
Vol 76 (3) ◽  
pp. 567-574 ◽  
Author(s):  
S. K. Pankaj ◽  
Zifan Wan ◽  
William Colonna ◽  
Kevin M. Keener
Keyword(s):  
High Voltage ◽  
Cold Plasma ◽  
Treatment Time ◽  
Organic Dyes ◽  
Degradation Kinetics ◽  
Weibull Model ◽  
Degradation Data ◽  
Weibull Models ◽  
Fast Green Fcf ◽  
Kinetics Of

High voltage atmospheric cold plasma (HVACP) is a novel, non-thermal technology which has shown potential for degradation of various toxic components in wastewater. In this study, HVACP was used to examine the degradation kinetics of methyl red, crystal violet and fast green FCF dyes. HVACP discharge was found to be a source of reactive nitrogen and oxygen species. High voltage application completely degraded all dyes tested in less than 5 min treatment time. Plasma from modified gas (∼65% O2) further reduced the treatment time by 50% vs. plasma from dry air. First order and Weibull models were fitted to the degradation data. The Weibull model was found better in explaining the degradation kinetics of all the treated dyes.

Effect of high voltage atmospheric cold plasma on inactivation of Listeria innocua on Queso Fresco cheese, cheese model and tryptic soy agar

LWT ◽  
2019 ◽  
Vol 102 ◽  
pp. 268-275 ◽  
Author(s):  
Zifan Wan ◽  
S.K. Pankaj ◽  
Curtis Mosher ◽  
Kevin M. Keener
Keyword(s):  
High Voltage ◽  
Cold Plasma ◽  
Listeria Innocua ◽  
Cheese Model

Reduction of Aflatoxin in Corn by High Voltage Atmospheric Cold Plasma

2017 ◽  
Vol 10 (6) ◽  
pp. 1042-1052 ◽  
Author(s):  
Hu Shi ◽  
Klein Ileleji ◽  
Richard L. Stroshine ◽  
Kevin Keener ◽  
Jeanette L. Jensen
Keyword(s):  
High Voltage ◽  
Cold Plasma
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