Amperometric glucose biosensor based on platinum nanoparticle encapsulated with a clay

被引：21

作者：

Han, Xiao ^{[1
]}

Zhu, Yihua ^{[1
]}

Yang, Xiaoling ^{[1
]}

Li, Chunzhong ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

来源：

MICROCHIMICA ACTA | 2010年 / 171卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

Clay; Dendrimer; Pt nanoparticles; Glucose; Biosensor; DIRECT ELECTRON-TRANSFER; DIRECT ELECTROCHEMISTRY; CARBON-NANOTUBES; HEMOGLOBIN; CATALYSIS; OXIDASE; ELECTROCATALYSIS; FILMS;

D O I：

10.1007/s00604-010-0424-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A hybrid system was constructed in neutral aqueous solution that consisted of clay clusters incorporated with platinum nanoparticles that were encapsulated with a poly(amidoamine) dendrimer through electrostatic interaction. Glucose oxidase was immobilized in this hybrid and used to modify a glassy carbon electrode so to obtain an enzymatic glucose biosensor. The nanohybrid material and the sensor were characterized by cyclic voltammetry and amperometry. The sensor has a response time of <3 s and a dynamic range from 0.01 to 16 mM. The detection limit is 4 mu M at a signal-to-noise ratio of 3.

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收藏

页码：233 / 239

页数：7

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