Figure 4From: Single wall carbon nanotubes enter cells by endocytosis and not membrane penetrationFLIM of CellMask orange labeled GPMVs exposed to SWCNTs. (A) Addition of SWCNTs to GPMVs synthesized from NIH-3T3 cells was associated with a decrease in average fluorescence lifetime (Ď„m) of CellMask orange. (B) Statistical decrease in both Ď„1 and Ď„m represent a SWCNT-based quenching of CellMask fluorescence (* is p < 0.01).Back to article page