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Interactions between DNA and a water-soluble C60 derivative studied by surface-based electrochemical methods
Journal of Electroanalytical Chemistry 567(2004)339-349，-0001，（）：
A novel electrochemical micromethod for the investigation of the interactions between DNA and non-electroactive species is described. The method was developed using the system of double-stranded DNA (dsDNA) modified gold electrodes (dsDNA/Au), a synthesized water-soluble C60 derivative as a model, and [Co(phen)3]3+/2+ (phen=1, 10-phenanthroline) as an electroactive indicator. Electrochemical studies with dsDNA-modified gold electrodes suggest that the C60 derivative can interact strongly with dsDNA, with binding sites of the major groove of the double helix and phosphate backbone of dsDNA, a binding constant of (1.6
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