Fig. 7
From: Cell membrane-camouflaged inorganic nanoparticles for cancer therapy
a The fabrication process of SUCNPs@mSiO2 and their mechanism in photodynamic therapy. b Enhanced in vitro cancer cell accumulation of SUCNPs@mSiO2. CLSM images demonstrate the tumor cell binding of UCNPs@mSiO2 and SUCNPs@mSiO2. All scale bars are 200Â nm. c Quantitative analysis of HeLa cells by flow cytometry. d Percentages of HeLa cells with increased fluorescence in (c). e Quantification of the mean fluorescence intensity of HeLa cells in (c). f In vivo fluorescence images of mice at 1, 2, 4, 8, 12, and 24Â h after injection of Cy7-SUCNPs@mSiO2. The red circles indicate the tumor sites. g Photographs of mice show the tumor size change after various treatments at different time points. Reprinted with permission from Refs [81]