Figure 5.

(a) Confocal microscopy images of the DPSC plated on scaffolds the same as Figure 4 and cultured for 21 days with (top) and without (bottom) addition of dexamethasone. Actin filaments were stained with Alex Flour 488 (green) and nucleus was stained with propidium iodide (red); (b) SEM images of the surfaces after rinsing with DI water and dehydration in air. The sidebar shows typical EDAX spectra obtained from the mineral deposits in the cultures with dexamethasone (top) and without dexamethasone (bottom).