Electrochemistry and in situ scanning tunnelling microscopy of pure and redox-marked DNA- and UNA-based oligonucleotides on Au(111)-electrode surfaces
Publication: Research - peer-review › Journal article – Annual report year: 2013
strongest and in accord with multiple site Ru-attachment. In situ STM disclosed molecular scale features in varying coverage on addition of the metal ions. The Ru-derivatives showed a bias voltage dependent broad maximum in the tunnelling current–overpotential correlation which could be correlated with theoretical frames for condensed matter conductivity of redox molecules. Together the data suggest that Ru-units are bound to both terpy and the UNA–DNA backbone.
|Journal||Physical Chemistry Chemical Physics|
|State||Published - 2013|
Electronic supplementary information (ESI) available: Details of the synthesis and purification of the ONs; MALDI-MS spectra of the oligonucleotides; tunnelling STS of the Ru-derivative of terpy 15-base ss DNA; formalism of STS bandwidth dependence of the ionic strength. See DOI: 10.1039/c2cp42351k
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