Journal
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume 707, Issue -, Pages 129-133Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2013.08.029
Keywords
Covalent carbon nanotube functionalization; Ferrocene; Poly(ethylene glycol) spacer; NADH; Sol-gel; Glucose dehydrogenase
Categories
Funding
- Institut Jean Barriol [FR 2843]
- [ANR-2010-BLAN-0819-04-SPRINT]
Ask authors/readers for more resources
A series of covalently bonded ferrocene derivatives to carbon nanotubes via either alkyl or poly(ethylene glycol) (PEG) spacers has been prepared and deposited onto glassy carbon electrodes using chitosan as a binder. Evaluation of the effect of spacer arms revealed that the hydrophilic and flexible PEG chain greatly facilitates electron transfer reactions. When adding diaphorase in the composite, effective electrocatalytic oxidation of NADH was achieved. The PEG spacer also permitted an efficient dispersion of the functionalized carbon nanotubes, without additives. In this way, they can be easily incorporated in water-based sol-gel matrices, as illustrated for bioelectrochemical applications with co-immobilized glucose dehydrogenase, diaphorase and NAD(+) cofactor. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available