A Reagentless Amperometric Alcohol Biosensor Based on Carbon-Nanotube/Teflon Composite Electrodes
- 8 January 2003
- journal article
- Published by Taylor & Francis in Analytical Letters
- Vol. 36 (9) , 2041-2048
- https://doi.org/10.1081/al-120023628
Abstract
We report on a multiwall carbon-nanotube (MWCNT)-based alcohol biosensor, based on the incorporation of alcohol-dehydrogenase/NAD+ within a three-dimensional MWCNT/Teflon matrix. The MWCNT component offers a marked decrease in the overvoltage for the oxidation of the liberated NADH along with minimal surface fouling effects, hence allowing convenient low-potential stable detection of the ethanol. The electrocatalytic detection is characterized, the biosensor composition and operation are optimized, and the analytical performance is illustrated.Keywords
This publication has 11 references indexed in Scilit:
- Carbon Nanotube/Teflon Composite Electrochemical Sensors and BiosensorsAnalytical Chemistry, 2003
- Solubilization of Carbon Nanotubes by Nafion toward the Preparation of Amperometric BiosensorsJournal of the American Chemical Society, 2003
- Electrochemical Sensors Based on Carbon NanotubesElectroanalysis, 2002
- Low-potential stable NADH detection at carbon-nanotube-modified glassy carbon electrodesElectrochemistry Communications, 2002
- Carbon Nanotubes--the Route Toward ApplicationsScience, 2002
- Carbon nanotube-modified electrodes for the simultaneous determination of dopamine and ascorbic acidThe Analyst, 2002
- Direct Electrochemistry of Cytochrome c at a Glassy Carbon Electrode Modified with Single-Wall Carbon NanotubesAnalytical Chemistry, 2002
- Electrocatalytic Oxidation of Norepinephrine at a Glassy Carbon Electrode Modified with Single Wall Carbon NanotubesElectroanalysis, 2002
- NanotubesChemphyschem, 2001
- Amperometric biosensors based on NAD(P)‐dependent dehydrogenase enzymesElectroanalysis, 1997