Electrochemical detection of aqueous Ag+ based on Ag+-assisted ligation reaction

Abstract

In this work, a novel strategy to fabricate a highly sensitive and selective biosensor for the detection of Ag(+) is proposed. Two DNA probes are designed and modified on a gold electrode surface by gold-sulfur chemistry and hybridization. In the presence of Ag(+), cytosine-Ag(+)-cytosine composite forms and facilitates the ligation event on the electrode… (More)
DOI: 10.1038/srep09161

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