Fig. 6From: Early signs of multi-walled carbon nanotbues degradation in macrophages, via an intracellular pH-dependent biological mechanism; importance of length and functionalizationLysosomal activity assessment. Lysosensor assay in RAW 264.7 macrophages exposed to CNT for 6 h. Scale bar: 10 μm. Abbreviations as in Fig. 1 Back to article page