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The authors describe an electrochemical DNA nanosensor based on the use of single gold nanowire electrodes (AuNWEs). The probe DNA is immobilized on the AuNWE via Au-S bonds that are formed between thiol-terminated DNA and the gold surface. Single AuNWEs were prepared by an improved laser-assisted pulling method and hydrofluoric acid etching. The nanoelectrodes were characterized by cyclic voltammetry...
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