scholarly journals Variation in structure of proteins by adjusting reactive oxygen and nitrogen species generated from dielectric barrier discharge jet

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ji Hoon Park ◽  
Minsup Kim ◽  
Masaharu Shiratani ◽  
Art. E. Cho ◽  
Eun Ha Choi ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Reactive Oxygen ◽  
Nitrogen Species ◽  
Dielectric Barrier ◽  
Structure Of Proteins

scholarly journals A low power flexible dielectric barrier discharge disinfects surfaces and improves the action of hydrogen peroxide

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sophia Gershman ◽  
Maria B. Harreguy ◽  
Shurik Yatom ◽  
Yevgeny Raitses ◽  
Phillip Efthimion ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Reactive Nitrogen Species ◽  
Barrier Discharge ◽  
Ambient Air ◽  
Hydrogen Peroxide Solution ◽  
Reactive Nitrogen ◽  
Nitrogen Species ◽  
Dielectric Barrier

AbstractThere is an urgent need for disinfection and sterilization devices accessible to the public that can be fulfilled by innovative strategies for using cold atmospheric pressure plasmas. Here, we demonstrate a successful novel combination of a flexible printed circuit design of a dielectric barrier discharge (flex-DBD) with an environmentally safe chemical reagent for surface decontamination from bacterial contaminants. Flex-DBD operates in ambient air, atmospheric pressure, and room temperature without any additional gas flow at a power density not exceeding 0.5 W/cm2. The flex-DBD activation of a 3% hydrogen peroxide solution results in the reduction in the bacterial load of a surface contaminant of > 6log10 in 90 s, about 3log10 and 2log10 better than hydrogen peroxide alone or the flex-DBD alone, respectively, for the same treatment time. We propose that the synergy between plasma and hydrogen peroxide is based on the combined action of plasma-generated OH· radicals in the hydrogen peroxide solution and the reactive nitrogen species supplied by the plasma effluent. A scavenger method verified a significant increase in OH· concentration due to plasma treatment. Novel in-situ FTIR absorption spectra show the presence of O3, NO2, N2O, and other nitrogen species. Ozone dissolving in the H2O2 solution can effectively generate OH· through a peroxone process. The addition of the reactive nitrogen species increases the disinfection efficiency of the hydroxyl radicals and other oxygen species. Hence, plasma activation of a low concentration hydrogen peroxide solution, using a hand-held flexible DBD device results in a dramatic improvement in disinfection.

Non-Equilibrium Dielectric Barrier Discharge Treatment of Mesenchymal Stem Cells: Charges and Reactive Oxygen Species Play the Major Role in Cell Death

2015 ◽  
Vol 12 (10) ◽  
pp. 1117-1127 ◽  
Author(s):  
Abraham Lin ◽  
Natalie Chernets ◽  
Justine Han ◽  
Yordano Alicea ◽  
Danil Dobrynin ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Stem Cells ◽  
Cell Death ◽  
Mesenchymal Stem Cells ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Dielectric Barrier ◽  
Discharge Treatment

Studying Treatment Effects on Dielectric Barrier Discharge Generated by using Superimposed Voltage Waveform Pulsed-power Supply on Escherichia coli

2017 ◽  
Vol 137 (6) ◽  
pp. 328-333 ◽  
Author(s):  
Toru Sasaki ◽  
Satoru Hida ◽  
Ryo Ito ◽  
Yuki Kondo ◽  
Kazumasa Takahashi ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Dielectric Barrier Discharge ◽  
Power Supply ◽  
Treatment Effects ◽  
Barrier Discharge ◽  
Pulsed Power ◽  
Voltage Waveform ◽  
Dielectric Barrier ◽  
Pulsed Power Supply

Improvement of Tear Strength using Dielectric Barrier Discharge Plasma

2009 ◽  
Vol 129 (6) ◽  
pp. 403-408
Author(s):  
Tsubasa Nakamura ◽  
Seizo Furuya ◽  
Nobuhiro Harada
Keyword(s):  
Dielectric Barrier Discharge ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Dielectric Barrier Discharge Plasma ◽  
Dielectric Barrier ◽  
Tear Strength ◽  
Barrier Discharge Plasma

Dispersion of Relatively Long Multi-walled Carbon Nanotubes in Water using Ozone Generated by Dielectric Barrier Discharge

2016 ◽  
Vol 136 (4) ◽  
pp. 180-185 ◽  
Author(s):  
Zaw Lin ◽  
Mitsunobu Yoshida ◽  
Yuki Uesugi ◽  
Karthik Paneer Selvam ◽  
Takeshi Nishikawa ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dielectric Barrier ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Desulfurization of UCG Gas using a Packed-bed Dielectric Barrier Discharge

2015 ◽  
Vol 135 (7) ◽  
pp. 435-436 ◽  
Author(s):  
Kazuhiro Takahashi ◽  
Kohki Satoh ◽  
Hidenori Itoh ◽  
ichi Itakura
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Packed Bed ◽  
Dielectric Barrier
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