Citation: Hong Xia Luo, Zhi Xin Guo, Nan He. Reversible electrochemistry of DNA on multi-walled carbon nanotube modified electrode[J]. Chinese Chemical Letters, ;2007, 18(7): 861-864. doi: 10.1016/j.cclet.2007.05.025 shu

Reversible electrochemistry of DNA on multi-walled carbon nanotube modified electrode

Department of Chemistry, Renmin University of China, Beijing 100872, China

Received Date: 13 October 2006

Fund Project: This research was sponsored by the National Natural Science Foundation of China (No. 20575077) and the Scientific Research Starting Foundation of Department of Chemistry, Renmin University of China.

Calf thymus DNA was electrochemically oxidized at a multi-walled carbon nanotube modified electrode. The potentials for DNA oxidation at pH 7.0 were 0.71 and 0.81 V versus SCE, corresponding to the oxidation of guanine and adenine residues, respectively. The initial 6e-oxidation of adenine, observed in the first scan, resulted a quasi-reversible 2e-redox process of the oxidation product in the following scans.
- Carbon nanotube,
- DNA,
- Cyclic voltammetry,
- Reversible
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