Figure 6

Stabilities of the dc-ngCA-silk hydrogel. (a) Multi-use stability, (b) storage stability at 30 °C, and (c) thermal stability at 50 °C. To assess its stability, p-NPA hydrolysis activity assays were performed at 25 °C (*P<0.05, **P<0.01, ***P<0.005; unpaired t-test).