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学科主题: 药学
题名:
Kinetics study on dismutation of superoxide anion catalyzed by Cu(Gly-Gly) by using pulse radiolysis
作者: 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
发表日期: 2002-03-01
卷: 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
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66650
Appears in Collections:北京大学药学院_期刊论文

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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

Recommended Citation:
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.
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