Fig. 2

Characterization of UECM and PECM. a, b Images of hUSCs and e, f hPDLSCs before and after decellularization obtained with a phase contrast microscope. Scale bar = 200 μm. c, d SEM images of UECM at × 1000 and × 10,000 magnification. g, h SEM images of PECM at × 1000 and × 10,000 magnification. i–k Immunostaining for the presence of ECM proteins. i Fibronectin. j Collagen I. k Laminin 5. Scale bar = 25 μm