Fig. 6.

Cell attachment and proliferation on scaffolds. (A) Number of viable 3T3 fibroblast cells measured by the Prestoblue metabolic activity on day 3, 6 and 9 post-seeding. (B) Bright-field microscopy images of toluidine blue stained cell-seeded scaffolds 7 days post-seeding. (C) Fluorescence microscopy images of red fluorescent 3T3 fibroblast cells 14 days post seeding. (D) SEM micrographs of cell-seeded scaffolds 21 days post-seeding.