Figure 3
From: Coating carbon nanotubes with a polystyrene-based polymer protects against pulmonary toxicity
Effects of MWCNT on macrophages in vitro - TEM observations. Panel a: Representative transmission electron microscopy (TEM) images of RAW 264.7 cells exposed for 24 h to culture medium alone (Control), or 10 μg/ml of NT1, NT2, or NT3. Inserts show details. *: example of individual carbon nanotubes. #: example of carbon nanotube agglomerates. Abbreviations are the same as in Figure 1. Panel b: Quantification of cells with carbon nanotube-containing vacuoles, expressed as the percentage of the total number of cells. Results are represented as box and whisker plots of values from five fields. Abbreviations are the same as in Figure 1, *: p < 0.05.