Fig. 3From: Early signs of multi-walled carbon nanotbues degradation in macrophages, via an intracellular pH-dependent biological mechanism; importance of length and functionalizationTEM images of RAW 264.7 macrophages exposed to CNT for 6 h. Panel a Typical TEM images of RAW 264.7 cells exposed to CNT for 6 h. Panel b quantification of the percentage of cells presenting CNT inside phagocytic vacuoles. Abbreviations as in Fig. 1 Back to article page