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The seed-growth method is used to prepare nano-gold particles, including gold particles, gold rods, gold cages, etc., to meet the requirements of light and thermal physical and chemical properties, and can also be encapsulated and adsorbed on polymer materials to achieve a combined structure. Service design particles: liposomes, complexes, etc.; response form: temperature, laser; drug factor: chemotherapeutic drugs; service content: design prescription conditions, optimize preparation process, sample verification; physical and chemical indicators: particle size index 10-300nm, Stability is more than 1 month.