▎ 摘　　要

NOVELTY - Nano-composite material medicine system comprises chelator-carrier-exogenous metal carbonyl-targeting group composite (I). USE - Nano-composite material medicine system used for targeting mitochondrial organelles of cancer cells, delivering carbon monoxide under control of near-infrared light, and consuming iron ions in cancer cells. ADVANTAGE - The medicine system has fluorescent tracer; and combine carbon monoxide and iron chelator, which achieves high-efficiency anticancer effect. DETAILED DESCRIPTION - Nano-composite material medicine system comprises chelator-carrier-exogenous metal carbonyl-targeting group composite of formula (I). X=iron chelator, preferably 4-3, 5-di (2-hydroxyphenyl)-1, 2, 4-triazole-1-yl - benzoic acid (dilarox DFX), gallic acid, or 3, 4-dihydroxy-benzoic acid, deferoxamine (DFO); Y'=carrier, where carrier is surface aminated nano-particle, where nano particle is heteroatom-doped graphene quantum dot, preferably non-metallic heteroatom doping graphene quantum dots, or metal atom and non-metal hetero atom doped graphene quantum dot; Z=exogenous metal carbonyl ML-CO donor; and W'=targeting group, preferably triphenylphosphine (TPP), or 4-(triphenylphosphine)-methyl-pyridine. An INDEPENDENT CLAIM is included for a method for preparing nano-composite material medicine system, which involves: (a) providing targeting group, ML-CO donor, iron chelator and carrier; (b) coordinating targeting group with ML-CO donor in presence of silver tetrafluoroborate (AgBF4), under inert atmosphere and solvent to form composite molecule; and (c) connecting composite molecule and iron chelator with carrier in presence of coupling agent, to form nano-composite material medicine system.