Figure 3From: Use of a special bioreactor for the cultivation of a new flexible polyurethane scaffold for aortic valve tissue engineering SEM analysis of PUHVs in different processing states. Native PHVPs demonstrate disordered fibers (a). FB seeded PHVPs revealed a rough confluent cellular coverage after SC (b) and a smoothed cellular surface after DC (c). FB and EC seeded PUHVs reveal a confluent cell layer with an EC-typical cobblestone morphology after SC (d). DC results in cell alignment following flow direction (e). These are representatives of ten independent experiments. Scale bars = 100 μm.Back to article page