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Kinetics study on dismutation of superoxide anion catalyzed by Cu(Gly-Gly) by using pulse radiolysis
Li, FM; Xie, Y; Deng, XX; Zhou, X; Chen, DH
关键词superoxide anion free radical (O-2(center dot-)) N-glycylglycinato-cupric compound pulse radiolysis dismutation mechanism
刊名RADIATION PHYSICS AND CHEMISTRY
2002-03-01
63期:3-6页:675-679
收录类别ISTP ; SCI
文章类型Proceedings Paper
WOS标题词Science & Technology
类目[WOS]Chemistry, Physical ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Nuclear Science & Technology ; Physics
英文摘要

Cu(Gly-Gly) was prepared as an analogue of superoxide dismutase by us. Kinetics of dismutation of superoxide anion free radical (O-2(.-)) catalyzed by Cu(Gly-Gly) in water, micelle solutions and Cu(C-12-Gly-Gly) (adding dodecanoyl on Gly-Gly) were studied using pulse radiolysis. The rate constants k(cat) and the reaction order n were obtained, and the catalysis mechanism was probed. The reaction is of first-order in analogue, and in O-2(.-) and second-order overall. It was proved that the first step in the mechanism of dismutation of O-2(.-) catalyzed by Cu(Gly-Gly) or Cu(C-12-Gly-Gly) is the determining step. (C) 2002 Elsevier Science Ltd. All rights reserved.

语种英语
WOS记录号WOS:000174642000108
引用统计
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/66650
专题北京大学药学院
作者单位1.China Isotope & Radiat Assoc, Beijing 100822, Peoples R China
2.Beijing Normal Univ, Inst Low Energy Nucl Phys, Beijing 100875, Peoples R China
3.Beijing Normal Univ, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing, Peoples R China
4.Peking Univ, Sch Pharmaceut Sci, Beijing 100083, Peoples R China
5.Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714
Li, FM,Xie, Y,Deng, XX,et al. Kinetics study on dismutation of superoxide anion catalyzed by Cu(Gly-Gly) by using pulse radiolysis[J]. RADIATION PHYSICS AND CHEMISTRY,2002,63(3-6):675-679.
APA Li, FM,Xie, Y,Deng, XX,Zhou, X,&Chen, DH.(2002).Kinetics study on dismutation of superoxide anion catalyzed by Cu(Gly-Gly) by using pulse radiolysis.RADIATION PHYSICS AND CHEMISTRY,63(3-6),675-679.
MLA Li, FM,et al."Kinetics study on dismutation of superoxide anion catalyzed by Cu(Gly-Gly) by using pulse radiolysis".RADIATION PHYSICS AND CHEMISTRY 63.3-6(2002):675-679.
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