Exposing cells to SWNTs
Cell morphology after exposure to SWNTs.
a, A healthy cell exposed
to 5 ug/ml SWNTs for 2 days. b, Zero-loss EFTEM image of a necrotic cell at 4 days. Upper right: higher magnification image of SWNT (3–6 nm diameter) bundles around the plasma membrane (pm) shown in the boxed region of the
main panel. c, HAADF-STEM images of aggregates of SWNTs within a necrotic cell, with opposite contrast to the zero-loss image in b. d, Higher magnification of boxed area in image c. Credit: Nature Nanotechnology.