Fig. 5. Biological transmission electronic microscopy images illustrating cellular internalization of pSiNRs@SPIONs (a), pSiNRs@SPIONs-BIOT-NFL (b), or pSiNRs@SPIONs-FAM-NFL (c) in rat glioblastoma cells. F98 cells were incubated 72 hours at 37 °C with nanoparticles at 200 μg mL−1. Images were taken with a TEM. Scale bars: 1 μm (left images) and 0.5 μm (right images). N for nucleus and V for vacuoles.
