Abstract

Glucose biosensor based on highly dispersed Au nanoparticles supported on palladium nanowire arrays

Author(s): Min Zhang, Faliang Cheng, Zhiquan Cai

A glucose biosensor was constructed by using highly dispersed gold nanoparticles supported on palladium nanowire arrays (Au-PdNWs) as sensing interface. The property of the biosensor was detected by cyclic voltammetry and chronoamperometry and the use of composite nanomaterial led to an efficient enzyme loading, showing a perfect catalytic activity towards the oxidation of glucose. The biosensor exhibited excellent sensitivity (detection limit was down to 0.001mM), short response time (about 5 sec) and wide linear range (from 0.05 to 5mM). Furthermore, the biosensor exhibited long-term stability and good reproducibility.


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