TY - JOUR
T1 - Aqueous reactive species induced by a PCB surface micro-discharge air plasma device
T2 - a quantitative study
AU - Chen, Chen
AU - Li, Fanying
AU - Chen, Hai Lan
AU - Kong, Michael G.
N1 - Publisher Copyright:
© 2017 IOP Publishing Ltd.
PY - 2017/10/12
Y1 - 2017/10/12
N2 - This paper presents a quantitative investigation on aqueous reactive species induced by air plasma generated from a printed circuit board surface micro-discharge (SMD) device. Under the conditions amenable for proliferation of mammalian cells, concentrations of ten types of reactive oxygen and nitrogen species (RONS) in phosphate buffering solution (PBS) are measured by chemical fluorescent assays and electron spin resonance spectroscopy (ESR). Results show that concentrations of several detected RNS (NO-2 , NO-3 , peroxynitrites, and NO-2) are higher than those of ROS (H2O2, O-2, and 1O2) in the air plasma treated solution. Concentrations of NO-3 can reach 150 times of H2O2 with 60 s plasma treatment. For shortlived species, the air plasma generates more copious peroxynitrite than other RONS including NO-2, O-2 , 1O2, and NO in PBS. In addition, the existence of reaction between H2O2 and NO-2/HNO2 to produce peroxynitrite is verified by the chemical scavenger experiments. The reaction relations between detected RONS are also discussed.
AB - This paper presents a quantitative investigation on aqueous reactive species induced by air plasma generated from a printed circuit board surface micro-discharge (SMD) device. Under the conditions amenable for proliferation of mammalian cells, concentrations of ten types of reactive oxygen and nitrogen species (RONS) in phosphate buffering solution (PBS) are measured by chemical fluorescent assays and electron spin resonance spectroscopy (ESR). Results show that concentrations of several detected RNS (NO-2 , NO-3 , peroxynitrites, and NO-2) are higher than those of ROS (H2O2, O-2, and 1O2) in the air plasma treated solution. Concentrations of NO-3 can reach 150 times of H2O2 with 60 s plasma treatment. For shortlived species, the air plasma generates more copious peroxynitrite than other RONS including NO-2, O-2 , 1O2, and NO in PBS. In addition, the existence of reaction between H2O2 and NO-2/HNO2 to produce peroxynitrite is verified by the chemical scavenger experiments. The reaction relations between detected RONS are also discussed.
KW - air plasma
KW - aqueous chemistry
KW - peroxynitrite
KW - reactive oxygen and nitrogen species
KW - surface micro-discharge
UR - https://www.scopus.com/pages/publications/85032209593
U2 - 10.1088/1361-6463/aa8be9
DO - 10.1088/1361-6463/aa8be9
M3 - 文章
AN - SCOPUS:85032209593
SN - 0022-3727
VL - 50
JO - Journal of Physics D: Applied Physics
JF - Journal of Physics D: Applied Physics
IS - 44
M1 - 445208
ER -