Laccase-catalyzed functionalization of phenol-modified carbon nanotubes: from grafting of metallopolyphenols to enzyme self-immobilization. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Materials Chemistry A Année : 2023

Laccase-catalyzed functionalization of phenol-modified carbon nanotubes: from grafting of metallopolyphenols to enzyme self-immobilization.

Résumé

We report the unprecedented use of laccase to functionalize phenol-modified carbon nanotubes (CNTs). Enzymatically-generated metallopolyphenols or the laccase itself can be mildly and efficiently immobilized using the ability of laccase to generate phenoxyl radicals. Electrochemistry, XPS and EPR spectroscopy were used to assess the enzyme-catalyzed CNT functionalization. The efficient immobilization of laccase is confirmed by the high direct bioelectrocatalytic reduction of oxygen with a maximum current density of 1.95 mA cm(-2).

Domaines

Matériaux Catalyse
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Origine : Publication financée par une institution

Dates et versions

hal-04119457 , version 1 (05-10-2023)

Identifiants

Citer

Umberto Contaldo, Solène Gentil, Elise Courvoisier‐dezord, Pierre Rousselot Pailley, Fabrice Thomas, et al.. Laccase-catalyzed functionalization of phenol-modified carbon nanotubes: from grafting of metallopolyphenols to enzyme self-immobilization.. Journal of Materials Chemistry A, 2023, 11 (20), pp.10850-10856. ⟨10.1039/d3ta00849e⟩. ⟨hal-04119457⟩
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