Engineered Hypopharynx from Coculture of Epithelial Cells and Fibroblasts Using Poly(ester urethane) as Substratum
Figure 1
The morphology of PEU scaffold observed under SEM. The scaffold was prepared from PEU/DMSO solution with concentration of 10% (w/w) (1), 15% (2), and 18% (3), respectively, followed by quenching at −70°C. (a) Top face (contacting air during preparation), (b) bottom (contacting container during preparation), and (c) cross-section face.