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Herein, a strategy was put forward for sensitive label-free electrochemical immunosensor by using silver–graphene oxide (Ag–GO) as redox probe. Initially, a simple, soft reaction conditions and efficient route was designed to in situ reduce silver nanoparticles (AgNPs) onto graphene oxide (GO) by glucose as reducing agent. The obtained nanocomposite gave a pair of well-defined redox peaks with the...
A new strategy for the sensitive detection of biomarker using Prussian blue–carbon nanotubes/gold nanocomposites (GNPs–PB–CNTs) as labels and horseradish peroxidase (HRP) as an enhancer is presented herein. Chitosan hydrogel and TiO 2 nanocomposites were first coated onto a glassy carbon electrode (GCE) surface, which provided a biocompatible interface with abundant –NH 2 groups for...
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