Figure 2

Representative SEM micrographs of PCL scaffolds after coating and 28 days of culturing. The micrographs show the proliferation and spreading of BMSCs (white arrows) after 28 days in culture. A, PCL scaffolds only; B, PCL scaffolds with poly-lysine coating; C, PCL scaffolds with HAp; D, PCL scaffolds with HAp and 30 mg/ml collagen coating; E, PCL scaffolds with 10 mg/ml collagen coating; F, PCL scaffolds with 30 mg/ml collagen coating.