Redoxní procesy guaninových reziduí DNA heptamerů na rtuťových elektrodách

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Title in English The Redox Processes of Guanine Residues in DNA Heptamers on Mercury Electrodes
Authors

TŘÍSKOVÁ Iveta TRNKOVÁ Libuše

Year of publication 2016
Type Article in Proceedings
Conference XXXVI. Moderní Elektrochemické Metody
MU Faculty or unit

Faculty of Science

Citation
Field Physical chemistry and theoretical chemistry
Keywords DNA heptamers; G peak; hydrogen evolution process; pH effect; vertex potential; mercury electrode
Description The paper is focused on electrochemical investigation of DNA heptamers d(GCXXXGC) with different central triplet (XXX = GAA, AAA, CCC). To evaluate the effect of hydrogen evolution on redox processes of these heptamers on a hanging mercury drop electrode, the AC reduction and G oxidation vcoltammetric peaks were measured at three pH and at different vertex potentials (from -1.60 V to -1.85 V). The double-peak G oxidation signals (GI and GII) reflect not only the structures of heptamers but also the impact of hydrogen evolution process into the production of 7,8 - dihydogenguanine moieties forming together with hydrogen in negative potentials.
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