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Development of a cholesterol biosensor modified with carbon nanotube
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2015, v.28 no.6, pp.425-429
https://doi.org/10.5806/AST.2015.28.6.425
(2015). Development of a cholesterol biosensor modified with carbon nanotube. Analytical Science and Technology, 28(6), 425-429, https://doi.org/10.5806/AST.2015.28.6.425
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Abstract
A cholesterol biosensor was developed using a modified carbon electrode with carbon nanotubes. The disposable cholesterol biosensor was modified with carbon nanotubes to enhance electron transfer during the enzymatic reaction of cholesterol. Cholesterol oxidase and peroxidase, with potassium ferrocyanide as a mediator, were immobilized on a screen-printed carbon nanotube electrode. The electrochemical cholesterol biosensor developed using carbon nanotubes showed a rapid and reliable signal for measuring total cholesterol. The cholesterol sensor showed a linear response in 5 seconds with a small volume (0.5 μL) in the range of 100~400 mg/dL, with a coefficient of variation of 4.0%.
- keywords
- cholesterol, point-of-care, blood test
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