A new amperometric glucose biosensor based on platinum nanoparticles/polymerized ionic liquid-carbon nanotubes nanocomposites

被引：56

作者：

Chu, Xiaochen ^{[1
]}

Wu, Bohua ^{[1
]}

Xiao, Chunhui ^{[1
]}

Zhang, Xiaohua ^{[1
]}

Chen, Jinhua ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemobiosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 08期

关键词：

Polymerized ionic liquid; Platinum nanoparticles; Glucose oxidase; Glucose; Amperometry; GLASSY-CARBON; MODIFIED ELECTRODE; OXIDASE; CODEPOSITION; PALLADIUM; NAFION; FILM;

D O I：

10.1016/j.electacta.2009.12.057

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A new amperometric glucose biosensor has been developed based on platinum (Pt) nanoparticles/polymerized ionic liquid-carbon nanotubes (CNTs) nanocomposites (PtNPs/PIL-CNTs). The CNTs was functionalized with polymerized ionic liquid (PIL) through directly polymerization of the ionic liquid, 1-vinyl-3-ethylimidazolium tetrafluoroborate ([VEIM]BF4), on carbon nanotubes and then used as the support for the highly dispersed Pt nanoparticles. The electrochemical performance of the PtNPs/PIL-CNTs modified glassy carbon (PtNPs/PIL-CNTs/GC) electrode has been investigated by typical electrochemical methods. The PtNPs/PIL-CNTs/GC electrode shows high electrocatalytic activity towards the oxidation of hydrogen peroxide. Taking glucose oxidase (GOD) as the model, the resulting amperometric glucose biosensor shows good analytical characteristics, such as a high sensitivity (28.28 mu A mM(-1) cm(-2)), wide linear range (up to 12 mM) and low detection limit (10 mu M). (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2848 / 2852

页数：5

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