Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 110, Issue 2, Pages 204-208Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2005.01.031
Keywords
molecular imprinting; thick film sensor; cholesterol detection
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A combined molecular imprinting and thick film electrochemical sensor for cholesterol concentration detection had been developed. The ferro-ferric cyanide coupled redox reaction was used as the means to quantify the cholesterol presented in the test medium. This electrochemical sensor employed a modified gold working electrode, a platinum counter electrode and an Ag/AgCl reference electrode. The alkanethiol was used to form the self-assembled monolayer (SAM) on the gold working electrode. The SAM was then used with the cholesterol as the template forming the molecular imprinting layer. This sensor prototype could detect cholesterol concentrations between 66 and 700 nM and only a I mu L of the sample volume was required. (C) 2005 Elsevier B.V. All rights reserved.
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