Graphene quantum dots/β-cyclodextrin nanocomposites: A novel electrochemical chiral interface for tryptophan isomer recognition

A novel chiral interface based on the GQDs/β-CD nanocomposites is constructed for electrochemical recognition of Trp enantiomers, which combines the advantages of GQDs (highly negatively charged) and β-CD (chiral microenvironment), and therefore they are applied for the successful recognition of Trp isomers.108