Enhanced Long-Term Color Stability of Teeth Treated with Hydrogen Peroxide and Non-Thermal Atmospheric Pressure Plasma Jets

2014 ◽  
Vol 11 (11) ◽  
pp. 1010-1017 ◽  
Author(s):  
Seoul Hee Nam ◽  
Hyun Wook Lee ◽  
Jin Woo Hong ◽  
Hae June Lee ◽  
Gyoo Cheon Kim
Keyword(s):  
Hydrogen Peroxide ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Color Stability ◽  
Plasma Jets ◽  
Pressure Plasma

scholarly journals Cold atmospheric pressure plasma jets as sources of singlet delta oxygen for biomedical applications

2011 ◽  
Vol 109 (12) ◽  
pp. 123302 ◽  
Author(s):  
J. S. Sousa ◽  
K. Niemi ◽  
L. J. Cox ◽  
Q. Th. Algwari ◽  
T. Gans ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Biomedical Applications ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jets ◽  
Pressure Plasma ◽  
Cold Atmospheric Pressure Plasma

Power Systems of Plasma Reactors for Non-Thermal Plasma Generation

2013 ◽  
Vol 16 (1) ◽  
Author(s):  
Henryka Danuta Stryczewska ◽  
Tomasz Jakubowski ◽  
Stanisław Kalisiak ◽  
Tomasz Giżewski ◽  
Joanna Pawłat
Keyword(s):  
Atmospheric Pressure ◽  
Arc Discharge ◽  
Plasma Reactor ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jets ◽  
Plasma Reactors ◽  
Dielectric Barrier ◽  
Gliding Arc ◽  
Pressure Plasma ◽  
Supply Systems

AbstractRecently, many different plasma sources are being investigated for exhaust gases treatment, odor abatement, VOC removal, soil conditioning, surface decontamination or tissue disinfection and sterilization. Among many different plasma reactors investigated in laboratories, gliding arc discharges (GAD), dielectric barrier discharges (DBD), pulsed discharges (PD), atmospheric pressure glow discharges (APGD) and atmospheric pressure plasma jets (APPJ) seem to be the most promising for high pressure low temperature applications. They can be designed as multi-electrodes’ high power system that can be used in environment protection processes, like decontamination of large surfaces and treatment of large volume of polluted gases, as well as small size and low power devices for biomedical applications, like plasma healing, disinfection and sterilization. Paper presents review of power supply systems for cold plasma reactors. Dielectric Barrier Discharge (DBD), Gliding Arc Discharge (GAD) and atmospheric pressure plasma jet (APPJ) reactors with their supply systems have been discussed from the point view of their characteristics, possibility to control power to the discharge and efficiency. Taking into account the plasma reactor characteristics and nature (nonlinear resistive and/or capacitive) different solutions of power suppliers have been presented: transformer type, AC/DC/AC inverter, RF-frequency system and frequency resonant inverter.

scholarly journals Analysis of Plasma-activated Medium (PAM) in aqueous solution by an Atmospheric Pressure Plasma Jet (APPJ)

2018 ◽  
Vol 197 ◽  
pp. 02013 ◽  
Author(s):  
Andi Wibowo Kinandana ◽  
Sumariyah Sumariyah ◽  
Muhammad Nur
Keyword(s):  
Hydrogen Peroxide ◽  
Species Composition ◽  
Exposure Time ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Reactive Species ◽  
Atmospheric Pressure Plasma Jet ◽  
Liquid Media ◽  
Pressure Plasma

Plasma-activated medium (PAM) has been produced by exposing a liquid media to Argon plasma jet. The jet plasma exposure to liquid media has produced reactive Oxygen species (ROS) in liquid phase. This study aims to determine the number of reactive species in plasma-activated medium. An atmospheric pressure plasma jet (APPJ) was generated with a dielectric barrier discharge (DBD) column by AC high voltage. Some parameters varied including exposure time; i.e. 5, 10, 15, 20, 25, and 30 min; and the distance between reactor and active media; i.e. 1, 2 and 3 cm. Some analysis conducted including variation of exposure times, the distances of reactor to PAM which affect produced concentration, and the reactive species composition in plasma-activated medium. In addition, temperature characteristics, pH levels, dissolved ozone and dissolved hydrogen peroxide concentrations were also observed in this study. The results showed that increased exposure time resulted in decreased pH, increased temperature and increased concentrations of ozone and hydrogen peroxide. The maximum reactive species composition was obtained at the distance between reactor and plasma-activated medium of 2 cm. Maximum reactive species composition obtained in this study has temperature of 29-30 Celsius degrees; pH 3.5; dissolved ozone 2.97 ppm; and Hydrogen Peroxide 215 ppm.

scholarly journals Long-Term Risk Assessment for Medical Application of Cold Atmospheric Pressure Plasma

Diagnostics ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 210 ◽  
Author(s):  
Rico Rutkowski ◽  
Georg Daeschlein ◽  
Thomas von Woedtke ◽  
Ralf Smeets ◽  
Martin Gosau ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Plasma Medicine ◽  
Pressure Plasma ◽  
Cold Atmospheric Pressure Plasma

Despite increasing knowledge gained based on multidisciplinary research, plasma medicine still raises various questions regarding specific effects as well as potential risks. With regard to significant statements about in vivo applicability that cannot be prognosticated exclusively based on in vitro data, there is still a deficit of clinical data. This study included a clinical follow-up of five probands who had participated five years previously in a study on the influence of cold atmospheric pressure plasma (CAP) on the wound healing of CO2 laser-induced skin lesions. The follow-up included a complex imaging diagnostic involving dermatoscopy, confocal laser scanning microscopy (CLSM) and hyperspectral imaging (HSI). Hyperspectral analysis showed no relevant microcirculatory differences between plasma-treated and non-plasma-treated areas. In summary of all the findings, no malignant changes, inflammatory reactions or pathological changes in cell architecture could be detected in the plasma-treated areas. These unique in vivo long-term data contribute to a further increase in knowledge about important safety aspects in regenerative plasma medicine. However, to confirm these findings and secure indication-specific dose recommendations, further clinical studies are required.

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