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Gold Nanorods (GNRs) has been explored for drug delivery due to its thermal anti-cancer function, easy preparation and modification, good biocompatibility and stability, and active accumulation and intracellular delivery to tumor.Doxorubicin (DOX) has been the standard chemotherapy for cancer.To enhance the anti-cancer efficacy, chemotherapy and thermotherapy were combined in the present study.To load sufficient DOX, DOX was firstly intercalated into DNA double strands and DOX-loaded DNA was absorbed to GNRs.