title: Carbon nanotubes (CNTs) for the development of electrochemical biosensors.
abstract: Carbon nanotube (CNT) is a very attractive material for the development of biosensors because of its capability to provide strong electrocatalytic activity and minimize surface fouling of the sensors. This article reviews our recent developments of oxidase- and dehydrogenase-amperometric biosensors based on the immobilization of CNTs, the co-immobilization of enzymes on the CNTs/Nafion or the CNT/Teflon composite materials, or the attachment of enzymes on the controlled-density aligned CNT-nanoelectrode arrays. The excellent electrocatalytic activities of the CNTs on the redox reactions of hydrogen peroxide, nicotinamide adenine dinucleotide (NADH), and homocysteine have been demonstrated. Successful applications of the CNT-based biosensors reviewed herein include the low-potential detections of glucose, organophosphorus compounds, and alcohol.
authors.affiliation: Pacific Northwest National Laboratory, Richland, WA 99352, USA. yuehe.lin@pnl.gov <yuehe.lin@pnl.gov>
authors.forename: Yuehe
authors.initials: Y
authors.lastname: Lin
authors.forename: Wassana
authors.initials: W
authors.lastname: Yantasee
authors.forename: Joseph
authors.initials: J
authors.lastname: Wang
mesh_terms: D000438:Alcohols / Q000737:chemistry; D015374:Biosensing Techniques; D002384:Catalysis; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D005947:Glucose / Q000378:metabolism; D006710:Homocysteine / Q000737:chemistry; D008956:Models, Chemical; D037742:Nanotubes, Carbon; D009943:Organophosphorus Compounds / Q000737:chemistry; D010084:Oxidation-Reduction; D010100:Oxygen / Q000378:metabolism
chemical_list: D000438:Alcohols; D037742:Nanotubes, Carbon; D009943:Organophosphorus Compounds; D006710:Homocysteine; D005947:Glucose; D010100:Oxygen