Fig. 3

Uptake of NPs by THP-1 cells. Graphs quantification of NP internalization by FACS. Results are expressed as fold change in fluorescence intensity when compared to control cells (CTL). They are means ± SEM of n = 3 experiments. Statistical differences when compared to control were determined by one-way ANOVA followed by the Dunnett’s test. **p < 0.01; ***p < 0.001. Pictures CLSM of cells exposed to NPs. The cell membrane is colored in green thanks to the fluorescent probe DSQ12S and NPs appear in blue. All scale bars: 10 µm