Figure 8From: Lung toxicity and biodistribution of Cd/Se-ZnS quantum dots with different surface functional groups after pulmonary exposure in rats AM uptake of QD visualized by transmission electron microscopy. TEM micrographs of AM recovered by BAL at 1 day after intratracheal instillation with QD-COOH (A &B) or QD-NH2 (C &D) (12.5 μg/rat). High magnification TEMs of the area in the red box illustrate AM vacuoles containing QD-COOH (B) and QD-NH2 (D).Back to article page