Efficient direct oxygen reduction by laccases attached and oriented on pyrene-functionalized polypyrrole/carbon nanotube electrodes.
We report the functionalization of multi-walled carbon nanotube (MWCNT) electrodes by oxidative electropolymn. of pyrrole monomers bearing pyrene and N-hydroxysuccinimide groups. Both polymers were applied to the immobilization and elec. wiring of Trametes versicolor laccase via chem. grafting or non-covalent binding. A "pseudo" host-guest interaction of polymd. pyrene with a hydrophobic cavity of laccase was used for the oriented enzyme immobilization on MWCNT electrodes. The latter leads to higher catalytic current for oxygen redn. (1.85 mA cm-2) and higher electroenzymic stability (50{%} after one month). [on SciFinder(R)]
Références
- Titre
- Efficient direct oxygen reduction by laccases attached and oriented on pyrene-functionalized polypyrrole/carbon nanotube electrodes.
- Type de publication
- Article de revue
- Année de publication
- 2013
- Auteurs
- Lalaoui, Noemie, Elouarzaki Kamal, Le Goff Alan, Holzinger Michael, and Cosnier Serge
- Revue
- Chem. Commun. (Cambridge, United Kingdom)
- Volume
- 49
- Pagination
- 9281–9283
- ISSN
- 1359-7345
Soumis le 12 avril 2018