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The NIRF images of HeLa tumor-bearing mice following intravenous injection of NIR-797 labeled PTX-SF-NPs (A) and A-PTX-SF-NPs (B). Absolute signal intensity of NPs in liver (C) and tumor (D). (E) Relative signal intensity of PTX-SF-NPs and A-PTX-SF-NPs. (F) NIRF images of various organs at 168 h post-administration with PTX-SF-NPs and A-PTX-SF-NPs.
Abbreviations: PTX, paclitaxel; SF, silk fibroin; NPs, nanoparticles; NIRF, near infrared fluorescence.
