Electrochemical determination of adenine and adenosine: Adsorption of adenine and adenosine at the pyrolytic graphite electrode
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Cited by (73)
Direct electrochemistry of proteins and nucleic acids: The focus on 3D structure
2021, Electrochemistry CommunicationsTowards deeper understanding of DNA electrochemical oxidation on carbon electrodes
2021, Electrochemistry CommunicationsCitation Excerpt :From pioneering publications [3–7] till nowadays [8–13], it is generally accepted that DNA is oxidizable on solid electrodes (carbon, gold) via residues of nucleobases. All types of nucleobases are known to undergo irreversible oxidation on carbon electrodes in a form of free molecules [14–18] and as a part of nucleosides and nucleotides [4,19–24]. The addition of sugar and phosphate groups shifts the oxidation signals of nucleobases to more positive potentials [19–24].
Deoxyuridine triphosphates modified with tyrosine or tryptophan aromatic groups for direct electrochemical detection of double-stranded DNA
2020, Electrochimica ActaCitation Excerpt :Thus, native double-stranded DNA (dsDNA) molecules give rise just to two well-distinguished, though rather small, oxidation peaks in voltammograms at about 0.7–0.9 V and 1.0–1.2 V (vs. Ag/AgCl, neutral pH) [23–25]. These peaks correspond to the electrochemical oxidation of guanine and adenine residues, respectively, which proceeds through several steps with reaction intermediates [15–20,23]. It should be noted that oxidation peak currents (Ip) for native dsDNA are markedly lower in comparison with signals from denatured DNA [23,25–28].