Study of carbon nanotube modified biosensor for monitoring total cholesterol in blood.
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.
Li
G
G
Department of Biomedical Engineering, Zhejiang University, 38 ZheDa Road, Hangzhou 310027, PR China. guangli@cbeis.zju.edu.cn
Liao
J M
JM
Hu
G Q
GQ
Ma
N Z
NZ
Wu
P J
PJ
D015374:Biosensing Techniques / Q000295:instrumentation* / Q000379:methods; D001774:Blood Chemical Analysis / Q000295:instrumentation* / Q000379:methods; D002784:Cholesterol / Q000097:blood*; D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D037742:Nanotubes, Carbon / Q000737:chemistry*
D037742:Nanotubes, Carbon; D002784:Cholesterol