Mediator-modified electrodes for catalytic NADH oxidation: high rate constants at interesting overpotentials.
(2002) In Bioelectrochemistry 56(1-2). p.67-72- Abstract
- Carbon paste electrodes were modified with a nitrofluorenone derivative, 2,4,7-trinitro-9-fluorenone, adsorbed on zirconium phosphate (ZP). After electrochemical reduction of the fluorenone derivative, it turns into a very efficient mediator for electrocatalytic NADH oxidation, with a formal potential of about +250 mV vs. Ag/AgCl. The electrochemistry and the electrocatalytic properties of the mediator were investigated with cyclic voltammetry and rotating disk electrode methodology. The second order rate constant with NADH was evaluated and found to be higher than 10(6) M(-1) s(-1), thus approaching true diffusion controlled currents for NADH oxidation.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/108198
- author
- Munteanu, Florentina LU ; Mano, N ; Kuhn, A and Gorton, Lo LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Bioelectrochemistry
- volume
- 56
- issue
- 1-2
- pages
- 67 - 72
- publisher
- Elsevier
- external identifiers
-
- wos:000176715700016
- pmid:12009446
- scopus:0037093891
- ISSN
- 1878-562X
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
- id
- 1eaa2d41-7ce7-492a-8f46-ecd9e87b803f (old id 108198)
- alternative location
- http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12009446&dopt=Abstract
- date added to LUP
- 2016-04-01 12:03:48
- date last changed
- 2022-01-26 22:13:02
@article{1eaa2d41-7ce7-492a-8f46-ecd9e87b803f, abstract = {{Carbon paste electrodes were modified with a nitrofluorenone derivative, 2,4,7-trinitro-9-fluorenone, adsorbed on zirconium phosphate (ZP). After electrochemical reduction of the fluorenone derivative, it turns into a very efficient mediator for electrocatalytic NADH oxidation, with a formal potential of about +250 mV vs. Ag/AgCl. The electrochemistry and the electrocatalytic properties of the mediator were investigated with cyclic voltammetry and rotating disk electrode methodology. The second order rate constant with NADH was evaluated and found to be higher than 10(6) M(-1) s(-1), thus approaching true diffusion controlled currents for NADH oxidation.}}, author = {{Munteanu, Florentina and Mano, N and Kuhn, A and Gorton, Lo}}, issn = {{1878-562X}}, language = {{eng}}, number = {{1-2}}, pages = {{67--72}}, publisher = {{Elsevier}}, series = {{Bioelectrochemistry}}, title = {{Mediator-modified electrodes for catalytic NADH oxidation: high rate constants at interesting overpotentials.}}, url = {{http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12009446&dopt=Abstract}}, volume = {{56}}, year = {{2002}}, }