Figure 6.
Representative scanning electron micrographs of the top surfaces of plain PCL scaffolds and PCL/ECM (PE) composite scaffolds seeded with MSCs and cultured in static conditions without dexamethasone for 16 days. PE4, PE8, PE12, and PE16 composite scaffolds contain mineralized matrix of various maturities generated in flow perfusion culture of increasing durations. For each scaffold group, three rows of images are shown for constructs after (A) 4 days of culture, (B) 8 days of culture, and (C) 16 days of culture. The scale bar shown represents 100 µm and applies to all images.