Albumin and doxorubicin are bonded through reaction. The bonded albumin and doxorubicin are added with a gold-nanoparticles solution for reaction. After being purified with water in a column, the liquid phase of gold-nanoparticles is changed into a phosphate buffer for obtaining an anticancer drug having doxorubicin bonded with gold nanoparticles. Thus, with the high biocompatibility and the big surface areas, gold nanoparticles are used in biological applications and used as carriers for increasing drug accumulation on tumor. The bonding between gold nanoparticles and doxorubicin increases stability of doxorubicin. Besides, doxorubicin has tumor-killing effect for cancer therapy.
