Cold plasma interactions with plants: Morphing and movements of Venus flytrap and Mimosa pudica induced by argon plasma jet

2017 ◽  
Vol 118 ◽  
pp. 100-105 ◽  
Author(s):  
Alexander G. Volkov ◽  
Kunning G. Xu ◽  
Vladimir I. Kolobov
Keyword(s):  
Cold Plasma ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Mimosa Pudica ◽  
Plasma Interactions ◽  
Venus Flytrap ◽  
Argon Plasma Jet

scholarly journals The effect of cold plasma on antioxidant enzymes, minerals, and some of the levels of the biochemical parameters in the subjects with type 2 diabetes mellitus samples

2021 ◽  
Vol 4 (2) ◽  
pp. 14
Author(s):  
Danik Martirosyan ◽  
Hossein Mirmiranpour ◽  
Hamid Ghomi ◽  
Mohammad Reza Ashoori ◽  
Alireza Rezaeinezhad
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Hydrogen Peroxide ◽  
Type 2 Diabetes Mellitus ◽  
Antioxidant Enzymes ◽  
Cold Plasma ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Argon Plasma Jet

Introduction: Hyperglycemia in people with diabetes mellitus and its lack of control are associated with irreversible consequences. Glycation of proteins and enzymes, especially antioxidant enzymes in uncontrolled diabetes mellitus, affects these consequences. Consumption of bioactive compounds containing antioxidants and minerals as well as the use of adjunct therapies, such as cold atmospheric plasma therapy, can be effective in preventing and controlling the consequences of diabetes mellitus.Objective: In this research, we investigated whether cold plasma treatment of diabetic samples was effective in altering the activity of oxidative enzymes, some biochemical elements, and biochemical parameters.Methods: Thirty individuals with type 2 diabetes mellitus and 30 healthy individuals, as controls, participated in the study. The samples were exposed to cold argon plasma jet for 10 minutes (by a 10 kHz pulsed DC power supply with an amplitude up to 20.0 kV). The following contents of the serum samples of all participants were evaluated according to the instructions of the used kits before and after the cold argon plasma jet treatment: the activity of catalase, superoxide dismutase, and glutathione peroxidase enzymes; the concentration of glucose, hydrogen peroxide, and selenium binding protein 1 (as an indicator of blood selenium); and the concentration of copper, zinc, iron, and magnesium.Results: The activity of antioxidant enzymes and minerals significantly increased in diabetic samples treated with cold plasma (P value < 0.05). No significant changes were observed in the concentrations of glucose, hydrogen peroxide, or selenium binding protein 1 in diabetic samples treated with cold plasma.Conclusions: Using cold argon plasma jet as an adjunct method, which will reduce the glycation of enzymes and improve some minerals, can reduce the risk of diabetes complications in patients with diabetes mellitus.Keywords:Antioxidant enzymes, Cold plasma, Diabetes mellitus, Minerals. 

scholarly journals Experimental Studies on Physicochemical Parameters of Water Samples before and after Treatment with a Cold Atmospheric Plasma Jet and its Optical Characterization

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Hom Bahadur Baniya ◽  
Rajesh Prakash Guragain ◽  
Gobinda Prasad Panta ◽  
Santosh Dhungana ◽  
Ganesh Kuwar Chhetri ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Cold Plasma ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Atmospheric Plasma ◽  
Nitrogen Species ◽  
Cold Atmospheric Plasma ◽  
Jet Interaction ◽  
Argon Plasma Jet

Cold plasma-liquid interaction becomes a growing interdisciplinary area of research involving plasma physics, fluid science, and chemistry. Plasma-liquid interaction has gained more interest over the last many years due to its potential applications in different fields. Cold atmospheric plasma jet is an emerging technology for surface drinking water treatment to improve quality and surface modification that is chemical-free and eco-friendly. Cold plasma treatment of water samples results in changes in turbidity, pH, and conductivity and in the formation of reactive oxygen and nitrogen species (RONS). As a result, plasma-activated water has a different chemical composition than water and can serve as an alternative technique for microbial disinfection. CAPJ has been generated by a high voltage 5 kV and a high frequency 19.56 kHz power supply. The discharge has been characterized by an optical method. To characterize the cold atmospheric pressure argon plasma jet, discharge plume temperature, and electron rotational and vibrational temperature have been determined. Cold atmospheric argon plasma jet produced at atmospheric condition contains high energetic electrons, ions, UV radiation, reactive oxygen, and nitrogen species named as cold plasma which has a wide range of applications in the biomedical industry, as well as in water treatment. Nowadays, researches have been carried out on ozonation through plasma jet interaction with surface drinking water. In this paper, we compare the change in physical and chemical parameters of surface water used for drinking purposes. The significant change in the physical parameters such as pH, turbidity, and electrical conductivity was studied. In addition, the significant changes in the concentration and absorbance of nitrate, ferrous, and chromium ions with respect to treatment time were studied. Our results showed that plasma jet interaction with surface drinking water samples can be useful for the improvement of water quality and an indicator for which reactive species play an important role in plasma sterilization.

Particle densities and non-equilibrium in a low-pressure argon plasma jet

1994 ◽  
Vol 14 (3) ◽  
pp. 251-275 ◽  
Author(s):  
Steven P. Fusselman ◽  
Hirotsugu K. Yasuda
Keyword(s):  
Argon Plasma ◽  
Plasma Jet ◽  
Low Pressure ◽  
Argon Plasma Jet ◽  
Non Equilibrium

Influence of Additive Gas on Electrical and Optical Characteristics of Non-equilibrium Atmospheric Pressure Argon Plasma Jet

2011 ◽  
Vol 13 (5) ◽  
pp. 575-582 ◽  
Author(s):  
Xiaomeng Fei ◽  
Shin-ichi Kuroda ◽  
Yuki Kondo ◽  
Tamio Mori ◽  
Katsuhiko Hosoi
Keyword(s):  
Atmospheric Pressure ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Optical Characteristics ◽  
Argon Plasma Jet ◽  
Non Equilibrium

scholarly journals Bacterial inactivation by using non thermal argon plasma jet and its application study for non thermal raw milk processing

2021 ◽  
Vol 794 (1) ◽  
pp. 012104
Author(s):  
Tota Pirdo Kasih ◽  
Dave Mangindaan ◽  
Afifah Septia Ningrum ◽  
C Sebastian ◽  
D Widyaningrum
Keyword(s):  
Argon Plasma ◽  
Plasma Jet ◽  
Raw Milk ◽  
Bacterial Inactivation ◽  
Application Study ◽  
Milk Processing ◽  
Argon Plasma Jet

Mathematical Modeling of a Free Plasma Jet Discharging into Air and Comparison with Probe Measurements

1997 ◽  
Author(s):  
R. Bolot ◽  
M. Imbert ◽  
C. Coddet
Keyword(s):  
Local Thermodynamic Equilibrium ◽  
Argon Plasma ◽  
Plasma Jet ◽  
Equilibrium Composition ◽  
Physical Phenomena ◽  
Plasma Spraying Process ◽  
Spraying Process ◽  
Free Plasma ◽  
Argon Plasma Jet ◽  
Probe Measurements

Abstract Plasma spraying process modeling is useful to understand physical phenomena and to decrease the number of experiments. In this paper, a study of the external plasma jet is proposed: the PHOENICS™ CFD code was used with a 2D axisymmetrical geometry and a standard K-ε turbulence model. In a first step, thermodynamic and transport properties were calculated from chemical equilibrium composition, thermodynamic derivatives and kinetic theory of gases. Local Thermodynamic Equilibrium (LTE) was assumed for both plasma and surrounding gases. The proposed numerical results were computed for comparison with temperature measurements realized by Brossa and Pfender in the case of an argon plasma jet discharging into air, using enthalpy probes. The predictions were found reasonably accurate. The influence of the surrounding gas nature was also verified as the validity of the parabolic assumption.

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