Covalent attachment of chitosan to graphene via click chemistry for superior antibacterial activity

Chemically converted graphene sheets are functionalized by treatment with aryl diazonium salts via click chemistry. Characteristic results indicate that chitosan is anchored onto the graphene surface by way of benzyl 1,2,3-triazole. In view of the biological appraisal, the prepared sample demonstrates higher antimicrobial activity than that of pure chitosan.