Figure 9

Representative photomicrographs of SWNT deposition in mouse lungs after 24 hours (A thru F) and 7 days (G and H). A) Lung morphology following PBS vehicle control instillation, B) Lung morphology following 100% FCS vehicle control instillation, C) Lung morphology following 250 μg SWNT instillation in PBS vehicle D) Lung morphology following 250 μg SWNT instillation in 100% FCS vehicle, E) Lung morphology following 250 μg SWNT instillation in PBS vehicle (high mag.), F) Lung morphology following 250 μg SWNT instillation in 100% FCS vehicle (high mag.), G) Lung morphology 7 days following 250 μg SWNT instillation in PBS vehicle H) Lung morphology 7 days following 250 μg SWNT instillation in 100% FCS vehicle Magnification – 100× except for E and F at 200×.