Fig. 5From: Polyethylene terephthalate nanoparticles effect on RAW 264.7 macrophage cellsPET-NPs internalization. TEM micrography of RAW 264.7 cell line control (A, C, E) and exposed for 24, 48, and 72 h to 15 µg/mL PET-NPs concentration (B, D, F). The black head arrows point out the nucleus, the black arrows the endosomes, and the white arrows the endosomes with PET-NPs insideBack to article page