FIGURE 5.

Confocal fluorescence images of an A549 cell and carboxylated 100 nm diamond. (a) The cell nuclei were dyed with Hoechst 33258 to reveal the position of the nucleus. (b) The cell tissue was dyed with anti-β-tubulin (Cy3) to reflect the cytoskeleton of the cells. (c) The cells were interacted with 100-nm cNDs and excited with 488-nm wavelength, and the emission was collected in the range of 500–530 nm. (d) Same as in c but exciting wavelength was 633 nm and emission was collected in the range 640–720 nm. (e) Merging the images of a–d.