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富勒醇清除·OH自由基的ESR研究

An ESR Study on OH-radical Scavenging Activity of Water-soluble Fullerenols

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【作者】 祝严师孙大勇刘桂珍刘子阳詹瑞云刘淑莹

【Author】 ZHU Yan-Shi;SUN Da-Yong;LIU Gui-Zhen;LIU Zi-Yang;ZHAN Rui-Yun;LIU Shu-Ying(Laboratory of Applied spectroscopy, Changchun Institute of Applied Chemistyry,Chinesc Academy of Sciences,Changchun,130022)

【机构】 中国科学院长春应用化学研究所应用谱学开放实验室

【摘要】 富勒醇清除·OH自由基的ESR研究祝严师,孙大勇,刘桂珍,刘子阳,詹瑞云,刘淑莹(中国科学院长春应用化学研究所应用谱学开放实验室,长春,130022)关键词C60,富勒醇,OH自由基,自旋捕捉,ESR生物体内的许多现象均涉及到自由基反应,现已发?..

【Abstract】 Water-soluble polyhydroxylated fullerene derivatives(fullerenol) were synthesized,and their scavenging ability for OH-radical was studied by the combination of ESR spectroscopy and spin-trapping technique with phenyl-t-butyl-nitrone. It was found that fullerenols showed an excellent efficiency in eliminating OH free radicals generated by UV photolysis of H2O2.At an applied fullerenol concentration of 0.3mg/mL in the final solution,a radical scavenging efficiency of approximate 95%was achieved, revealing the potential use of these compounds as novel potent free radical scavengers in biological systems.

【关键词】 C60富勒醇OH自由基自旋捕捉ESR
【Key words】 C60FullerenolOH-radicalSpin-trappingESR
【基金】 中国科学院应用谱学开放实验室和延边敖东药业集团公司资助
  • 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,1996年07期
  • 【分类号】O621.1
  • 【被引频次】21
  • 【下载频次】249
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