PHEMA Hydrogels Obtained by Infrared Radiation for Cartilage Tissue Engineering

Figure 2

SEM images of hydrogels cross section: (a) sample A at 50 µm: general morphology; (b) sample B at 250 µm; (c) porous region magnification of sample B at 50 µm; (d) dense region magnification of sample B at 50 µm; (e) sample C at 50 µm; (f) sample D at 50 µm; (g) sample E at 50 µm.