Fig. 2

Cellular uptake of biomimetic nanoparticles. A Dosage-course of cellular uptake. MLE-12 cells were pretreated with TNF-α (10 ng/mL) and IFN-γ (10 ng/mL) for 24 h. MLE-12 cells were incubated with biomimetic nanoparticles in concentrations of 20, 40, 60, 80, and 100 μg/mL for 12 h. B Time-course cellular uptake. MLE-12 cells were incubated with biomimetic nanoparticles with a concentration of 80 μg/mL for 4, 8, 12, and 16 h, respectively. Scale bar, 20 μm