Figure 2From: TGF-β1 conjugated chitosan collagen hydrogels induce chondrogenic differentiation of human synovium-derived stem cellsHydrogel characteristics and release kinetics. SEM images of MeGC (A) and MeGC/Col (B) hydrogels. Scale bar = 10 μm. Release profiles of TGF-β1 from MeGC/TGF (C) and MeGC/Col/TGF (D) hydrogels incubated in culture media with serum.Back to article page