Chiral glutamic acid functionalized graphene: preparation and application

Abstract

<sc>l</sc>-glutamic acid and <sc>d</sc>-glutamic acid were covalently grafted onto graphene sheets <italic>via</italic> the amide formation between amino groups of glutamic acid enantiomers and oxygen-containing groups in graphene oxide. The resultant hybrids have high chiral properties and excellent electrochemical activity towards electroactive 3,4-dihydroxyphenylalanine (DOPA) enantiomers.