Prussian blue modified amperometric FIA biosensor:: one-step immunoassay for α-fetoprotein

被引:33
作者
Guan, JG [1 ]
Miao, YQ
Chen, JR
机构
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Zhejiang Normal Univ, Sch Life & Environm Sci, Jinhua 321004, Peoples R China
关键词
alpha-fetoprotein; biosensor; Prussian blue;
D O I
10.1016/j.bios.2003.08.006
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
The aim of this study was to develop a rapid method to measure alpha-fetoprotein (AFP) in human serum by use of one-step sandwich enzyme-linked immunosorbent assay (ELISA)-based immunobiosensor with disposable screen-printed carbon electrode technology. Prussian blue (PB) was deposited using cyclic voltammetry (CV) on the surface of electrode to catalyze H2O2 from the reaction of glucose oxidase. It took only about 30 min to complete the whole experimental procedure through flow injection analysis (FIA). A detection range obtained is in the ran-e from 5 to 500 ng/ml AFP. This detection seems to be quick, reliable and practical. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:789 / 794
页数:6
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