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Photothermal therapy,as an effective approach,uses heat absoprtion from near-infrared(NIR)light to ablate cancer,has received significant interest in recent years.Various nanomaterials have been explored as the photothermal adsorbing agents without causing toxic side effects.We synthesized Bi2S3@Fe3O4 nanorods by a one-step hydrothermal method as depicted in Fig.1a.SEM and TEM images in Fig.1b and 1c show the rod-like morphology of as-prepared Bi2S3@Fe3O4 with an average length of 1.18 m and diameter about 85nm.