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. 2015 Oct 9;2(11):1697–1704. doi: 10.1016/j.ebiom.2015.10.012

Fig. 4.

Fig. 4

TEM micrographs of lung cells. (a–c) Lung cell, probably an alveolar macrophage (N, nucleus) containing lamellar bodies (blue arrows) and PM (black arrows: nanospherules; yellow arrows: CNT-like bundles; and red arrows: MWCNTs,). (d–f) Magnification of (a–c). Note the similarity between the nanostructures observed inside the cells and in BALF extracts, dust, and vehicle-exhausts (Fig. 1).