Treatment of Ribonucleoside Solution With Atmospheric‐Pressure Plasma

Zhang, Xianhui; Zhou, Renwu; Zhou, Rusen; Chen, Mao-Dong; Li, Jiangwei; Sun, Yue; Chen, Qiang; Yang, Sui; Liu, Qing

doi:10.1002/ppap.201500088

Cited by 21 publications

(16 citation statements)

References 48 publications

(61 reference statements)

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“…The formation of nitrite (NO 2 − ) and nitrate (NO 3 − ) in the plasma-treated solution is illustrated in Fig. 4(b) , which shows the production of some long-lived and relatively stable chemical species in water as a result of air plasma treatment 37 . NO 2 − and NO 3 − are formed in plasma-treated water through the dissolution of nitrogen oxides formed in the plasma by gas-phase reactions of dissociated N 2 and O 2 or H 2 O 38 .…”

Section: Resultsmentioning

confidence: 99%

Effects of Atmospheric-Pressure N2, He, Air, and O2 Microplasmas on Mung Bean Seed Germination and Seedling Growth

Zhou

Zhang

et al. 2016

Sci Rep

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167

129

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Atmospheric-pressure N2, He, air, and O2 microplasma arrays have been used to investigate the effects of plasma treatment on seed germination and seedling growth of mung bean in aqueous solution. Seed germination and growth of mung bean were found to strongly depend on the feed gases used to generate plasma and plasma treatment time. Compared to the treatment with atmospheric-pressure O2, N2 and He microplasma arrays, treatment with air microplasma arrays was shown to be more efficient in improving both the seed germination rate and seedling growth, the effect attributed to solution acidification and interactions with plasma-generated reactive oxygen and nitrogen species. Acidic environment caused by air discharge in water may promote leathering of seed chaps, thus enhancing the germination rate of mung bean, and stimulating the growth of hypocotyl and radicle. The interactions between plasma-generated reactive species, such as hydrogen peroxide (H2O2) and nitrogen compounds, and seeds led to a significant acceleration of seed germination and an increase in seedling length of mung bean. Electrolyte leakage rate of mung bean seeds soaked in solution activated using air microplasma was the lowest, while the catalase activity of thus-treated mung bean seeds was the highest compared to other types of microplasma.

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Section: Resultsmentioning

confidence: 99%

Effects of Atmospheric-Pressure N2, He, Air, and O2 Microplasmas on Mung Bean Seed Germination and Seedling Growth

Zhou

Zhang

et al. 2016

Sci Rep

Self Cite

167

129

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show abstract

“…Elution was performed at a flow‐rate of 1 mL min −1 and at a column temperature of 35 °C. Chromatograms were obtained after loading the sample onto a cation exchange column . The concentration of OH radicals can be quantified based on peak area data from LC spectra.…”

Section: Methodsmentioning

confidence: 99%

Quantification of plasma produced OH radical density for water sterilization

Zhang

Zhou

Bazaka

et al. 2018

Plasma Processes & Polymers

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The interactions between plasma-generated excited particles and water play an integral role in sustainable degradation of pharmaceutical compounds, improving aerobic respiration of activated sludge, and efficient removal of microorganisms from water, and are fundamental to the intentional transfer of reactivity from plasmas to biological solutions for such medical applications as cancer treatment and wound healing. The physical and chemical mechanisms that govern this transfer of reactivity are complex, and include concomitant generation and consumption of species in the gas and liquid phases, and at the interface. As such, it is challenging to predict the quantities of biologically-active radicals and molecules in liquid phase from gas phase measurements alone. Rapid and accurate quantification of reactive species, such as OH radicals and H 2 O 2 molecules within the liquid phase and their link to specific biological effects is therefore critical for medical applications of plasmaactivated solutions. Using a simple, low-cost method for trapping and stabilization of OH radicals by means of salicylic acid, this work seeks to provide further insights into the physics and chemistry of generation of OH radicals within the liquid phase, and integrate these findings with decontamination outcomes for four commonly used processing gases.

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“…Actually, only a small portion of species, such as O 3 , H 2 O 2 , H, OH, NO x and HNO x , can pass through the gas-liquid interface and enter the solution [ 10 , 11 ]. After entering the solution, some of these species exist in forms of hydrates, such as OH(H 2 O) n (from OH) [ 12 ], which are present in the solution for a long time and have similar chemical properties as OH. The interaction of biomolecules in water with plasma can initiate, directly or indirectly, a variety of physical and chemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Atmospheric-Pressure Air Microplasmas with Amino Acids as Fundamental Processes in Aqueous Solution

et al. 2016

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Plasma medicine is a relatively new field that investigates potential applications of cold atmospheric-pressure plasmas in bioengineering, such as for bacterial inactivation and degradation of organic molecules in water. In order to enunciate mechanisms of bacterial inactivation at molecular or atomic levels, we investigated the interaction of atmospheric-pressure air microplasmas with amino acids in aqueous solution by using high-resolution mass spectrometry (HRMS). Results show that the oxidation effect of plasma-induced species on the side chains of the amino acids can be categorized into four types, namely hydroxylation, nitration, dehydrogenation and dimerization. In addition, relative activities of amino acids resulting from plasma treatment come in descending order as follows: sulfur-containing carbon-chain amino acids > aromatic amino acids > five-membered ring amino acids > basic carbon-chain amino acids. Since amino acids are building blocks of proteins vital to the growth and reproduction of bacteria, these results provide an insight into the mechanism of bacterial inactivation by plasma.

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Treatment of Ribonucleoside Solution With Atmospheric‐Pressure Plasma

Cited by 21 publications

References 48 publications

Effects of Atmospheric-Pressure N2, He, Air, and O2 Microplasmas on Mung Bean Seed Germination and Seedling Growth

Effects of Atmospheric-Pressure N2, He, Air, and O2 Microplasmas on Mung Bean Seed Germination and Seedling Growth

Quantification of plasma produced OH radical density for water sterilization

Interaction of Atmospheric-Pressure Air Microplasmas with Amino Acids as Fundamental Processes in Aqueous Solution

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