Fig. 5. Cells growing on engineered scaffolds. (a,b) Scanning electron microscopy (SEM) images of mouse fibroblasts grown on PLGA nanofibers for 7 days, as described previously (Li et al., 2002). Images are displayed at: (a) original magnification x1500 and (b) original magnification x2500. Scale bar: 10 µm. Images printed with permission from Li et al. (Li et al., 2002). (c) Side view of rabbit corneal epithelial cells immunostained with an anti-cornea-specific cytokeratin K3/12 (clone AE5, green) grown on a vitrified collagen `vitrigel' sheet (light green). Scale bar: 50 µm. Image courtesy of Winnette McIntosh Ambrose, Toshiaki Takezawa and Jennifer H. Elisseeff.