Dwell time considerations for large area cold plasma decontamination

Konesky, Gregory A.

doi:10.1117/12.818323

Cited by 7 publications

(3 citation statements)

References 17 publications

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“…One convenient method is to form a jet array by grouping a number of individual plasma jets units together. Although the interaction mechanisms between individual jets require further investigation, a 2D jet array with 45 single jets has been successfully implemented to form a large treatment area [21]. The scale-up ability of plasma jets makes them practical for further industrial application.…”

Section: Introductionmentioning

confidence: 99%

Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet

Xie

Wu³

et al. 2019

Nanomaterials

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In this study, we developed a simple-to-use approach based on an atmospheric pressure plasma jet to synthesize aqueous Au nanoparticles (AuNP). Special attention was paid to the different reaction dynamics and AuNP properties under AC and pulse-power-driven plasma jets (A-Jet and P-Jet, respectively). The morphology of the AuNP, optical emissions, and chemical reactions were analyzed. Further, a copper mesh was placed above the reaction cell to evaluate the role of electrons and neutral species reduction. A visible color change was observed after the A-Jet treatment for 30 s, while it took 3 min for the P-Jet. The A-Jet treatment presented a much higher AuNP growth rate and a smaller AuNP diameter compared with the P-Jet treatment. Further analysis revealed an increase in chemical concentrations (Cl− and H2O2) and liquid conductivity after plasma treatment, with a higher increased amplitude for the A-Jet case. Moreover, the electrons alone had little effect on AuNP generation, while neutral species showed a clear Au+ reduction effect, and a unique coupling effect between both reactions was observed. The different reaction dynamics between the A-Jet and P-Jet were attributed to their different local heating effects and different discharge power during the reaction.

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Section: Introductionmentioning

confidence: 99%

Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet

Xie

Wu³

et al. 2019

Nanomaterials

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“…Until a decade ago, 263 noble gases such as argon and helium were most commonly employed for cold plasma 264 decontamination studies. Noble gases were traditionally the preferred gas for reasons 265 including high thermal conductivity (for heat removal), rich ultraviolet emission spectrum 266 and a lower operating discharge voltage at atmospheric pressure (Konesky, 2009). Plasmas 267 in pure noble gases are abundant in charged particles which cause bacterial cell surface 268 etching.…”

Section: Effect Of Gas Composition 260mentioning

confidence: 99%

Applications of cold plasma technology for microbiological safety in meat industry

Misra¹,

2017

Trends in Food Science & Technology

262

116

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“…During the past few years, many studies have been carried out to find the effect of low-temperature plasma with a variety of remote and local plasmas in atmospheric pressure on biological and industrial fields such as different surface treatment [1][2][3][4][5][6][7][8][9], sterilization, and purification [10][11][12] processes using different electrical discharges including corona discharge, dielectric barrier discharge, micro-hollow cathode discharge, atmospheric pressure plasma jet, etc. One of the most important applications of plasma treatment is degradation of various molecules in water and other solutions.…”

Section: Introductionmentioning

confidence: 99%

Degradation of bromophenol blue molecule during argon plasma jet irradiation

et al. 2017

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The aim of this paper is to study degradation of a bromophenol blue molecule (C19H10Br4O5S) using direct irradiation of cold atmospheric argon plasma jet. The pH of the bromophenol blue solution has been measured as well as its absorbance spectra and conductivity before and after the irradiation of non-thermal plasma jet in various time durations. The results indicated that the lengths of conjugated systems in the molecular structure of bromophenol blue decreased, and that the bromophenol blue solution was decolorized as a result of the decomposition of bromophenol blue. This result shows that non-thermal plasma jet irradiation is capable of decomposing, and can also be used for water purification.

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Dwell time considerations for large area cold plasma decontamination

Cited by 7 publications

References 17 publications

Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet

Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet

Applications of cold plasma technology for microbiological safety in meat industry

Degradation of bromophenol blue molecule during argon plasma jet irradiation

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