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中氮茚萘醌类化合物与CT-DNA相互作用的电化学
引用本文:李静,杜江燕,王炳祥,龚美娟,罗鹏.中氮茚萘醌类化合物与CT-DNA相互作用的电化学[J].南京师大学报,2007,30(1):64-67.
作者姓名:李静  杜江燕  王炳祥  龚美娟  罗鹏
作者单位:南京师范大学化学与环境科学学院,江苏南京210097
基金项目:江苏省高校自然科学基金 , 国家自然科学基金
摘    要:用电化学方法研究了4个中氮茚萘醌化合物与小牛胸腺DNA(CT-DNA)作用前后在玻碳(GC)电极上的电化学行为.实验结果表明,中氮茚萘醌化合物在pH为7.2的PBS缓冲溶液中的循环伏安曲线中有两对氧化还原峰,该氧化还原反应主要由溶液中化合物的扩散过程控制;加入CT-DNA后化合物的氧化还原式电位明显正移,表明化合物与CT-DNA的相互作用以嵌入方式为主.

关 键 词:中氮茚萘醌化合物  CT-DNA  相互作用  电化学行为  中氮茚  萘醌类化合物  相互作用  电化学  Cyclic  Voltammetry  嵌入方式  式电位  过程控制  扩散  缓冲溶液  还原反应  氧化还原  循环伏安曲线  结果  实验  化学行为  电极  玻碳  小牛胸腺  萘醌化合物
文章编号:1001-4616(2007)01-0064-04
收稿时间:2006-03-15
修稿时间:2006-05-20

Interaction Between Indolizine-Naphthoquinones and CT-DNA by Cyclic Voltammetry
Li Jing,Du Jiangyan,Wang Bingxiang,Gong Meijuan,Luo Peng.Interaction Between Indolizine-Naphthoquinones and CT-DNA by Cyclic Voltammetry[J].Journal of Nanjing Normal University(Natural Science Edition),2007,30(1):64-67.
Authors:Li Jing  Du Jiangyan  Wang Bingxiang  Gong Meijuan  Luo Peng
Institution:School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, China
Abstract:The interaction of four indolizine-naphthoquinones and CT-DNA was studied by cyclic voltammetry at glass carbon electrode. The results indicated that there were two couples of redox peaks and the redox reaction was controlled mainly by diffusion from the curve of Ip vs scan rate. The currents and peaks of indolizine-naphthoquinones decreased and shifted to the positive direction by adding CT-DNA in pH = 7.2 PBS solution. It can be suggested that the interaction between indolizine - naphthoquinones and DNA may be in the intercalative mode in the pH = 7. 2 phosphate buffer solution.
Keywords:indolizine-naphthoquinones  CT-DNA  interaction  electrochemical action
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