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等离子医学
SJR: 0.278 SNIP: 0.183 CiteScore™: 0.57

ISSN 打印: 1947-5764
ISSN 在线: 1947-5772

等离子医学

DOI: 10.1615/PlasmaMed.2016018884
pages 265-272

Oxidation of N-Acetylcysteine (NAC) under Nanosecond-Pulsed Nonthermal Dielectric Barrier Discharge Plasma

Yingying Li
Department of Chemistry, Drexel University, Philadelphia, PA 19104
Arben Kojtari
Department of Chemistry, Drexel University, Philadelphia, PA 19104
Gennadi Friedman
Department of Electrical Engineering, Drexel University, Philadelphia, PA 19104
Ari D. Brooks
Department of Microbiology and Immunology, Drexel University, Philadelphia, PA 19104
Alex Fridman
Department of Mechanical Engineering, Drexel University, Philadelphia, PA 19104
Suresh G. Joshi
Department of Microbiology and Immunology, Drexel University, Philadelphia, PA 19104
Hai-Feng Ji
Department of Chemistry, Drexel University, Philadelphia, Pennsylvania, USA

ABSTRACT

NAC solutions in water and phosphate buffer were treated with nonthermal plasma generated by using a nanosecond-pulsed dielectric barrier discharge (DBD) device, and the products generated after plasma treatments were characterized by 1H nuclear magnetic resonance. Our results demonstrate that NAC was oxidized to acetic acid, 2-amino-3-mercaptopropanoic acid, 2-aminoethanethiol, and 2-aminoethanesulfonic acid. The concentrations of these compounds are time dependent with plasma treatment. Mechanisms of NAC under the DBD plasma are also proposed in this study, and the products and mechanisms differ from those generated by microsecond-pulsed DBD plasma.