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The authors describe a method for DNA target recognition and signal amplification that is based on the target-induced formation of a three way junction. The subsequent assembly of two DNA probes releases the inhibitory strand and triggers a downstream strand displacement amplification. This causes the formation of a G-rich single sequence that binds to a hemin monomer with its peroxidase-mimicking...
We report on an enzymatic electrochemical glucose biosensor based on the use of zinc oxide nanorods (ZnO NRs) modified with gold nanoparticles (Au-NPs) and arranged in the form of an array. The nanorods were obtained via a hydrothermal method, and the Au-NPs were synthesized by photo-reduction. The surface of the nanoarrays was then modified with Au-NPs via electrostatic self-assembly. GOx was immobilized...
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