Study of carbon nanotube modified biosensor for monitoring total cholesterol in blood

被引:173
作者
Li, G
Liao, JM
Hu, GQ
Ma, NZ
Wu, PJ
机构
[1] Zhejiang Univ, Dept Biomed Engn, Hangzhou 310027, Peoples R China
[2] Hangzhou Kangheng Sci & Technol Co Ltd, Hangzhou 310013, Peoples R China
关键词
total cholesterol; biosensor; carbon nanotube;
D O I
10.1016/j.bios.2004.09.005
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
A carbon nanotube modified biosensor for monitoring total cholesterol in blood was studied. This sensor consists of a carbon working electrode and a reference electrode screen-printed on a polycarbonate substrate. Cholesterol esterase, cholesterol oxidase, peroxidase and potassium ferrocyanide were immobilized on the screen-printed carbon electrodes. Multi-walled carbon nanotubes (MWCN) were added to prompt electron transfer. Experimental results show that the carbon nanotube modified biosensor offers a reliable calibration profile and stable electrochemical properties. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:2140 / 2144
页数:5
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