DNA-mediated electron transfer in DNA duplexes tethered to gold electrodes via phosphorothioated dA tags.

@article{Campos2014DNAmediatedET,
  title={DNA-mediated electron transfer in DNA duplexes tethered to gold electrodes via phosphorothioated dA tags.},
  author={R{\^o}mulo A. L. Campos and Alexander Kotlyar and Elena E Ferapontova},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  year={2014},
  volume={30 40},
  pages={
          11853-7
        }
}
The efficiency of DNA-based bioelectronic devices strongly depends on the way DNA molecules are linked to the electronic component. Commonly, DNA is tethered to metal electrodes via an alkanethiol linker representing an additional barrier for electron transport. Here we demonstrate that the replacement of the alkanethiol linker for a phosphorothioated adenosine tag increases the rate of DNA-mediated electron transfer (ET) up to 259 s(-1), representing the highest hitherto reported rate of… CONTINUE READING
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