FIG. 3.

RGD/RDG-modified ECM-based hydrogel characterization. (A) Gross image of the acellular hydrogels. Scale bar=250 μm. (B) Swelling ratio of six hydrogel groups after swollen in PBS for 1 day. Similar swelling ratio was observed between hydrogel groups. Error bars represent the standard deviation on the mean for n=3. (C) Young's modulus values for six acellular hydrogel groups. Error bars represent the standard deviation on the mean for n=3: *p-value<0.05. (D) Degradation rate of each type of hydrogel material. Error bars represent the standard deviation of the mean for n=3. Viability test within hydrogel after cultured for 24 h. Color images available online at www.liebertpub.com/tea