Direct Electrochemistry of Cytochrome c at a Glassy Carbon Electrode Modified with Single-Wall Carbon Nanotubes
Top Cited Papers
- 30 March 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 74 (9), 1993-1997
- https://doi.org/10.1021/ac010978u
Abstract
The electrochemistry of horse heart cytochrome c was studied by cyclic voltammetry at a glassy carbon electrode modified with single-wall carbon nanotubes (SWNTs). A pair of well-defined redox waves was obtained in cytochrome c aqueous solution at an activated SWNT film-modified electrode. The optimal conditions for activating the SWNT film-modified electrode has been determined. The electrode reaction of cytochrome c is a diffusion-controlled process. The peak current increases linearly with the concentration of cytochrome c in the range from 3.0 × 10-5−7.0 × 10-4 M. The detection limit is 1.0 × 10-5 M. The activated SWNT film was characterized by scanning electron microscopy. Furthermore, interaction of cytochrome c with adenine was characterized by electrochemical and spectral methods.Keywords
This publication has 20 references indexed in Scilit:
- The interaction of ferrocytochromecwith long-chain fatty acids and their CoA and carnitine estersBiochemistry and Cell Biology, 2000
- Carbon Nanotube ActuatorsScience, 1999
- Nanotubes from CarbonChemical Reviews, 1999
- Carbon nanotube electrode for oxidation of dopamineBioelectrochemistry and Bioenergetics, 1996
- A Carbon Nanotube Field-Emission Electron SourceScience, 1995
- Single-shell carbon nanotubes of 1-nm diameterNature, 1993
- Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer wallsNature, 1993
- Simple Recipe Yields Fullerene TubulesScience News, 1992
- Activation of glassy carbon electrodes by alternating current electrochemical treatmentAnalytica Chimica Acta, 1985
- Carbon fibre micro-electrodes in the differential pulse voltammetry of copper ionsAnalytica Chimica Acta, 1983