Figure 2. Cultivation of BCECs on chitosan and the blends. A: The morphological changes in BCECs cultured on chitosan, PCL 25, PCL 50, and PCL 75 after culture. At day 7, BCECs reached confluence in PCL 25, PCL 50 and PCL 75 groups. B: The expressions of ZO-1 (green) of BCECs cultured on chitosan, PCL 25, PCL 50, and PCL 75 after 7 days of incubation. Scale bar=100 µm.