Département de chimie moléculaire

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)]