▎ 摘　　要

NOVELTY - The method involves injecting a graphene quantum dot solution having a mass percentage concentration of 30-200 mg/kg into a tumor model. A laser of 405-488 nm is applied to the tumor model, and fluorescence is observed by the fluoroscopy display device to distinguish the tumor tissue. USE - Method for visualizing tracking of tumor cells using graphene quantum dots used in optical imaging technology. ADVANTAGE - The graphene quantum dots (GQDs) specifically target tumor cell nuclei, thus accurately distinguishing between normal liver tissue and adjacent tissues. The method has simple operation, responsive and obvious effect. The high resolution and high precision tracking of tumor cells are ensured, and can realize real-time and direct visual guidance of tumor resection. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the application of GQDs to optical imaging techniques to distinguish tumor models from normal tissues during simulated surgery. (Drawing includes non-English language text)