Figure 3.

Cellular uptake of HSA@IR780 NPs and HSA@IR780@DTX NPs. (A) Confocal fluorescence images of 22RV1 cells localization of HSA@IR780 NPs and HSA@IR780@DTX NPs 45 min post-incubation. Blue fluorescence indicates positive staining of Hochest and red fluorescence is the fluorescence of IR780. (B) Flow cytometry analysis of 22RV1 cell line incubated with PBS, HSA@IR780 NPs, and HSA@IR780@DTX NPs, respectively.

Abbreviations: DTX, docetaxel; HSA, human serum albumin; NPs, nanoparticles; PBS, phosphate buffer saline.