Fig. 5.
Alizarin Red staining of osteoblast cells seeded on porous PCL scaffolds maintained for (a) 14 and (b) 30 days in basal and osteogenic medium; Quantitative analysis of Alizarin Red staining in osteogenic (c) and basal (d) medium by measuring the optical density (OD); ns, # and $: non-significant; *: significant versus other scaffolds having the same sign (p < 0.01); (Black scale bar = 1 mm, White scale bar = 100 μm)