▎ 摘　　要

NOVELTY - Chiral graphene quantum dot is chiral quantum dot nanomaterial modified with chiral amino acid monolayer or graphene quantum dot layers. USE - Chiral graphene quantum dot used for preparing antibacterial material, biological imaging material and chiral sensing material (all claimed). ADVANTAGE - The quantum dot has antibacterial property, no toxic, good stability, excellent solubility and low cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of chiral graphene quantum dot comprising mixing citric acid and amino acid, pyrolyzing and purifying.