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Generation mechanism of hydroxyl radical species and its lifetime prediction during the plasma-initiated ultraviolet (UV) photolysis.
Attri, Pankaj; Kim, Yong Hee; Park, Dae Hoon; Park, Ji Hoon; Hong, Young J; Uhm, Han Sup; Kim, Kyoung-Nam; Fridman, Alexander; Choi, Eun Ha.
Afiliación
  • Attri P; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
  • Kim YH; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
  • Park DH; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
  • Park JH; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
  • Hong YJ; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
  • Uhm HS; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
  • Kim KN; Yonsei University, Seoul, Korea.
  • Fridman A; Drexel Plasma Institute, Drexel University, PA, USA.
  • Choi EH; Plasma Bioscience Research Center, Kwangwoon University, Seoul, Korea.
Sci Rep ; 5: 9332, 2015 Mar 20.
Article en En | MEDLINE | ID: mdl-25790968
Through this work, we have elucidated the mechanism of hydroxyl radicals (OH(•)) generation and its life time measurements in biosolution. We observed that plasma-initiated ultraviolet (UV) photolysis were responsible for the continues generation of OH(•) species, that resulted in OH(•) to be major reactive species (RS) in the solution. The density and lifetime of OH(•) species acted inversely proportional to each other with increasing depth inside the solution. The cause of increased lifetime of OH(•) inside the solution is predicted using theoretical and semiempirical calculations. Further, to predict the mechanism of conversion of hydroxide ion (OH(-)) to OH(•) or H2O2 (hydrogen peroxide) and electron, we determined the current inside the solution of different pH. Additionally, we have investigated the critical criterion for OH(•) interaction on cancer cell inducing apoptosis under effective OH(•) exposure time. These studies are innovative in the field of plasma chemistry and medicine.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fotólisis / Rayos Ultravioleta / Radical Hidroxilo / Gases em Plasma Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: Sci Rep Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fotólisis / Rayos Ultravioleta / Radical Hidroxilo / Gases em Plasma Tipo de estudio: Prognostic_studies / Risk_factors_studies Idioma: En Revista: Sci Rep Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido