Issue 18, 2012
From the journal:

Analyst

Hydrogen peroxide and glucose biosensor based on silver nanowires synthesized by polyol process

Xuejuan Yang,ab   Jing Bai,a   Yinhu Wang,ab   Xiue Jiang*a  and  Xiaoying He*b  

* Corresponding authors

a State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China
E-mail: jiangxiue@ciac.jl.cn
Fax: +86 431-85262378
Tel: +86 431-85685653

b China west Normal University, Nanchong 637002, China
E-mail: hexysctc@yahoo.com.cn

Abstract

Silver nanowires synthesized through a polyol process using polyvinylpyrrolidone as protection (PVP-AgNWs) were used as a new electrode material for constructing a sensor. Hydrogen peroxide (H2O2) and glucose were used as analytes to demonstrate the sensor performance of the PVP-AgNWs. It is found that the PVP-AgNWs-modified glassy carbon electrode (PVP-AgNWs/GCE) exhibits remarkable catalytic performance toward H2O2 reduction. This sensor has a fast amperometric response time of less than 2 s and the catalytic current is linear over the concentration of H2O2 ranging from 20 μM to 3.62 mM (R = 0.998) with a detection limit of 2.3 μM estimated on a signal-to-noise ratio of 3. A glucose biosensor was constructed by immobilizing glucose oxidase (GOD) onto the surface of the PVP-AgNWs/GCE. The resultant glucose biosensor can be used for glucose detection in human blood serum with a sensitivity of 15.86 μA mM−1 cm−2 and good selectivity and stability.

Graphical abstract: Hydrogen peroxide and glucose biosensor based on silver nanowires synthesized by polyol process

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Article information

DOI
https://doi.org/10.1039/C2AN35407A
Article type
Paper
Submitted
27 Mar 2012
Accepted
23 Jun 2012
First published
25 Jun 2012

Analyst, 2012,137, 4362-4367

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Hydrogen peroxide and glucose biosensor based on silver nanowires synthesized by polyol process

X. Yang, J. Bai, Y. Wang, X. Jiang and X. He, Analyst, 2012, 137, 4362 DOI: 10.1039/C2AN35407A

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