Schematic Illustration of the Fabrication Process and Therapeutic Mechanism of Bi2S3/Ti3C2-TPP. a Bi2S3/Ti3C2-TPP was prepared by in-situ growth of Bi2S3 NPs in Ti3C2 NSs and modification with TPP. b Bi2S3/Ti3C2-TPP exerted a synergistic therapeutic effect of mitochondria-targeted multi-mode PDT combined with PTT on hypoxic tumors under NIR irradiation