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.
引用
收藏
页码：233 / 239
页数：7
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