Figure 1
Representative TEM images of AuNP in lung tissue. Singlets and small AuNP agglomerates. A) Intracellular within a vesicle of an alveolar type I epithelial cell. B) Luminal, i.e. attached to the cell membrane of an alveolar type I epithelial cell. C 1 ) In a vesicle of an alveolar type II epithelial cell. C 2 ) In a vesicle of an endothelial cell. D) In a vesicle of an alveolar macrophage. E) Attached to lining layer material, i.e. surfactant. Arrows point to the regions shown at higher magnification in the inserts.