A disposable glucose biosensor based on drop-coating of screen-printed carbon electrodes with magnetic nanoparticles

被引：61

作者：

Lu, Bo-Wen ^{[1
]}

Chen, Wen-Chang ^{[1
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Dept Chem Engn, Touliu 64002, Yunlin, Taiwan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 304卷 / 01期

关键词：

Fe3O4; nanoparticles; Screen-printed carbon electrodes (SPCES); Electrochemical impedance spectroscopy (EIS); Glucose biosensor;

D O I：

10.1016/j.jmmm.2006.01.222

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic Fe3O4 nanoparticles (Nano-Fe3O4) were prepared by co-precipitation method and a disposable glucose biosensor was fabricated by drop coating of ferricyanide (Ferri)-Nano-Fe3O4 mixture onto the surface of screen-printed carbon electrodes (SPCEs), and then by layering-on glucose oxidase (GOD). The electrochemical characteristics of modified SPCEs were analyzed by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and chronoamperometry (CA). The glucose biosensors exhibit a relatively fast response (< 15 s) and high sensitivity (ca. 1.74 mu AmM-1) with a wide linear range up to 33.3mM (600mg dL(-1)) of glucose. (C) 2006 Published by Elsevier B. V.

引用

页码：E400 / E402

页数：3

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