Generation of Antimicrobial NOx by Atmospheric Air Transient Spark Discharge

Janda, M.; Martišovitš, V.; Hensel, Karol; Machala, Zdenko

doi:10.1007/s11090-016-9694-5

Cited by 90 publications

(84 citation statements)

References 49 publications

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“…To understand the effect of the PAW on seeds germination and plant growth it is necessary to know chemical changes induced by plasma discharge in water. When the TS discharge is generated in ambient air, it mainly produces NO and NO 2 . In contact with water the hydroxyl radicals • OH are produced that rapidly recombine into hydrogen peroxide H 2 O 2 (Eq.…”

Section: Resultsmentioning

confidence: 99%

“…When the TS discharge is generated in ambient air, it mainly produces NO and NO 2 . [56] In contact with water the hydroxyl radicals • OH are produced that rapidly recombine into hydrogen peroxide H 2 7). [57,58] Figure 2 shows pH and concentrations of the selected RONS (H 2 O 2 , NO 2 ‾, NO 3 ‾) in the PADW and the PATW as function of the water activation time.…”

Section: Chemical Analysis Of Plasma Activated Watermentioning

confidence: 99%

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Effects of plasma activated water on wheat: Germination, growth parameters, photosynthetic pigments, soluble protein content, and antioxidant enzymes activity

Kučerová

Henselová

Slováková

et al. 2019

Plasma Processes & Polymers

109

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The paper presents the study on the effects of the plasma activated water (PAW) generated by transient spark discharge on the wheat (Triticum aestivum L.) cultivated in vitro and in vivo. Water uptake and germination of seeds, growth parameters of seedlings and plants, as well as the content of photosynthetic pigments, soluble proteins and activity of antioxidant enzymes are reported and correlated with the concentrations of reactive oxygen and nitrogen species in the PAW. The PAW improves germination, early development of the seedlings, the content of photosynthetic pigments in the leaves and soluble protein content in the roots, and suppresses the activity of antioxidant enzymes. The results indicate that the PAW may effectively stimulate growth of the wheat seedlings and positively affect their metabolism especially in the soil with low nutrient content.

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Section: Resultsmentioning

confidence: 99%

Section: Chemical Analysis Of Plasma Activated Watermentioning

confidence: 99%

Effects of plasma activated water on wheat: Germination, growth parameters, photosynthetic pigments, soluble protein content, and antioxidant enzymes activity

Kučerová

Henselová

Slováková

et al. 2019

Plasma Processes & Polymers

109

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“…The TS is initiated by the streamer that leads to the formation of short (~ 10 ns) high current (~ A) spark pulse [41]. The timeresolved OES study and imaging of the TS revealed that the emission from the excited molecular nitrogen is generated mostly during the streamer phase, and the emission of the atomic lines comes mainly from the spark phase [42,43]. During the TS spark phase the heating of the gas up to 2000-3000 K was also observed, high electron density (= high degree of ionization) [44], and high degree of atomization [45].…”

Section: Generation Of Reactive Species In Gaseous Phasementioning

confidence: 99%

Evaluation of Oxidative Species in Gaseous and Liquid Phase Generated by Mini-Gliding Arc Discharge

Pawłat

Terebun

Kwiatkowski

et al. 2019

Plasma Chem Plasma Process

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The gliding arc discharge plasma reactors are known as a source of non-equilibrium plasma at atmospheric pressure. In the present study, generation of dominant reactive oxygen and nitrogen species in gaseous and liquid phase in water by the compact gliding arc device (mini-GAD) and corresponding bactericidal effects were investigated. Water and phosphate buffer solutions were used as model liquids. Mini-GAD is a strong source of nitrogen oxides (up to 800 ppm NO and 200 ppm NO 2) that result in high concentrations of nitrites and nitrates in water solutions. The highest bactericidal efficacy towards Escherichia coli was achieved for non-buffered water solution.

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“…[48][49][50] The authors concluded that the NO synthesis efficiency was highera ts mall-scale operations with low energy inputs. [51] This understanding of the variousp arameters effects could provide guidance for future studies to control and manipulate the nitrogen product yield and selectivity. Another critical aspecto ft he effect of discharge parameters is their influence on the resulting NO x product composition.…”

Section: Introductionmentioning

confidence: 98%

“…Regardingt he product characterization, Janda et al found that the NTPNF process favored NO 2 production at low lowf requencies (1-2kHz) whereas NO was formed more predominantly when the frequency increased to 3-8 kHz when considering almostt he same total-NO x -synthesis rates. [51] This understanding of the variousp arameters effects could provide guidance for future studies to control and manipulate the nitrogen product yield and selectivity.…”

Section: Introductionmentioning

confidence: 98%

Sustainable Non‐Thermal Plasma‐Assisted Nitrogen Fixation—Synergistic Catalysis

et al. 2019

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In this Minireview, the multiple chemical synergies present in catalytic non‐thermal plasma‐assisted nitrogen fixation (NTPNF) are uncovered through a critical exploration of the underlying mechanisms, during which the catalyst, plasma, and reactants play different roles. For the gas‐phase NTPNF, the synergies consist of different aspects of the catalytic pathways such as electron‐impact dissociation; Zeldovich mechanism in the PNO interactions; and Eley–Rideal, Langmuir–Hinshelwood, surface adsorption, and diffusion mechanisms for the plasma–catalyst interactions. The synergies within the gas–liquid NTPNF involve contributions of plasma and UV excitation to the gas‐phase reactions and the UV excitation of molecules at the liquid–surface interface, which improves synthesis of aqueous nitrate, nitrite, and ammonium products. Based on the various synergistic mechanisms during NTPNF, future potential applications are proposed for how NTPNF could benefit the sustainable nitrogen fixation industry.

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Generation of Antimicrobial NOx by Atmospheric Air Transient Spark Discharge

Cited by 90 publications

References 49 publications

Effects of plasma activated water on wheat: Germination, growth parameters, photosynthetic pigments, soluble protein content, and antioxidant enzymes activity

Effects of plasma activated water on wheat: Germination, growth parameters, photosynthetic pigments, soluble protein content, and antioxidant enzymes activity

Evaluation of Oxidative Species in Gaseous and Liquid Phase Generated by Mini-Gliding Arc Discharge

Sustainable Non‐Thermal Plasma‐Assisted Nitrogen Fixation—Synergistic Catalysis

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