Figure 8From: Comparison of cellular toxicity caused by ambient ultrafine particles and engineered metal oxide nanoparticles Distribution of selected metals in subcelluar of A549. A-cells seeded in Si3N4 plate under light microscopy (X 400); B-control (without any particles in cells); C-Nano NiO particles; D-Nano ZnO particles; F to J, distribution of Fe, Ni, Cu, Zn in PM 5.6 respectively; K to N, distribution of Fe, Ni, Cu, Zn in in PM1.8 respectively; O-R, distribution of Fe, Ni, Cu, Zn in in PM0.1 respectively. Scar bar: 10 μm. Colour bar indicated different fluorescent intensity induced by metals in the A549 cell.Back to article page