Vertically Aligned Pd Nanowires for Glucose Oxidase Bioanode
نویسنده
چکیده
A bioanode for glucose based biofuel cell have been fabricated by combining glucose oxidase and highly ordered Palladium (Pd) nanowire array electrode. The Pd nanowires were 5.57 μm in length and 64.28 nm in diameter. The hydrogel composite modified Pd nanowire array bioanodes were characterized with cyclic voltammetry in the presence of different scan rates and different substrate concentrations under physiological conditions. The electrochemical measurements showed a linear amperometric response in the range of 1 mM to 13 mM. In addition, surface and structural characterization were performed by scanning electron microscopy leading to the conclusion that the Pd nanowires are highly ordered and vertically aligned and thereby promotes the number of electroactive sites for the catalysis of the oxidation of glucose. The combination of glucose oxidase and Pd nanowire arrays revealed the capability of these enzymatic bioanodes to perform direct electron transfer to Pd nanostructure surfaces and be used in a glucose biofuel cell.
منابع مشابه
Fabrication of palladium nanowire array electrode for biofuel cell application
a r t i c l e i n f o Keywords: Pd nanowires Nonenzymatic and enzymatic bioelectrocatalysis Glucose oxidase Biofuel cells Bioelectrocatalysis was demonstrated with palladium (Pd) nanowire array electrode via nonenzymatic and en-zymatic methods for glucose, which was validated by the generation of anodic current in the presence of glucose. The vertically standing Pd nanowires used for the fabric...
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