▎ 摘　　要

NOVELTY - Anti-tumor drug loaded nano system comprises anticancer drugs loaded on photothermal carboxyl graphene oxide nanoparticle connected to carboxyl tumor graphene oxide nanoparticle targeting molecules. USE - Anti-tumor drug loaded nano system used for treating lung cancer, liver cancer, stomach and spleen tumors, lymph cancer, breast cancer or prostate cancer cells (claimed). ADVANTAGE - The anti-tumor drug loaded nano system has good efficiency and simple preparation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of anti-tumor drug loaded nano system comprising performing carboxylation of graphene oxide, dispersing, adding carboxamide amine activator, connecting activator-mediated tumor targeting molecule in the carboxyl graphene oxide surface, and performing conjugation via pi-pi to obtain carboxyl graphene oxide carrying one or more anticancer drugs.