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. Author manuscript; available in PMC: 2019 Feb 15.
Published in final edited form as: Adv Exp Med Biol. 2017;947:71–100. doi: 10.1007/978-3-319-47754-1_4

Fig. 4.8.

Fig. 4.8

(a) Dark Field STEM image shows in vivo breakdown of SiO2-MNPs in alveolar macrophage (Zone I) and formation of Zone II. (b) Magnified region shows small nanoparticles in Zone II