Degradation of Structurally Defined Graphene Nanoribbons by Myeloperoxidase and the Photo-Fenton Reaction.
Fiche publication
Date publication
juillet 2020
Journal
Angewandte Chemie (International ed. in English)
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BIANCO Alberto
Tous les auteurs :
Luan X, Martín C, Zhang P, Li Q, Vacchi IA, Delogu LG, Mai Y, Bianco A
Lien Pubmed
Résumé
As an emerging member of the graphene family, structurally defined graphene nanoribbons (GNRs) have shown promising applications in various fields. The evaluation of the degradability of GNRs is particularly important for assessing the persistence level and risk of these materials in living organisms and the environment. However, there is a void in the study of the degradation of GNRs. Here, we report the degradation behavior of GNRs in the presence of human myeloperoxidase (hMPO) or treated with the photo-Fenton (PF) reaction. With the assistance of potassium hydroxide or imidazole, which facilitates the dispersion of GNRs in the aqueous solution, GNRs underwent only partial degradation after 25-hour incubation with hMPO, while, the PF reaction degraded GNRs almost completely after 120 hours. These results indicate that structurally precise GNRs can be efficiently degraded under suitable conditions, providing more opportunities for future applications in different fields.
Mots clés
biodegradability, carbon materials, hydroxyl radicals, peroxidases, photo-Fenton reaction
Référence
Angew Chem Int Ed Engl. 2020 Jul 9;: