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Nonenzymatic Electrochemical Detection of Glucose Using Well-Distributed Gold Nanoparticles on Graphene/Carbon Nanotube Nanohybrids

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Abstract:

A nonenzymatic electrochemical sensor was fabricated for glucose detection based on gold nanoparticles graphene/carbon nanotube nanohybrids (AuNPs-GH/CNT), which were synthesized through in situ reduction procedure. Cyclic voltammetry (CV) and amperometry were used to evaluate the catalytic activity of the AuNPs-GH/CNT-Nafion modified electrode towards glucose. It was founded that AuNPs-GH/CNT-Nafion modified electrode showed remarkable enhanced electrocatalytic activity towards the oxidation of glucose under optimized conditions. The sensors exhibited linear behavior in the concentration range from 5 μM to 1 mM for the quantification of glucose with a limit of detection of 1.5 μM.

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Periodical:

Advanced Materials Research (Volume 600)

Pages:

234-237

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.600.234

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Online since:

November 2012

Authors:

Cai Yu Lu, Jian Fei Xia, Zong Hua Wang, Yan Zhi Xia, Fei Fei Zhang

Keywords:

Carbon Nanotube (CN), Glucose, Graphen, Nonenzymatic

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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