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

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:304

Article

Lu, Bo-Wen¹  Chen, Wen-Chang¹ 

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

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

DOI  :  10.1016/j.jmmm.2006.01.222

来源: Elsevier

【 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.

【 授权许可】

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