Figure 2
a Swelling studies of Zn-CS/β-GP and Zn-CS/nHAp/β-GP hydrogels. Addition of nHAp significantly increased the water retention capacity of the hydrogel. b Degradation studies of Zn-CS/β-GP and Zn-CS/nHAp/β-GP hydrogels. Addition of nHAP had no effect on the degradation characteristics of the hydrogel. Asterisk indicates significant changes compared with Zn-CS/β-GP (p < 0.05) (n = 6). c Protein adsorption studies on Zn-CS/β-GP and Zn-CS/nHAp/β-GP hydrogels.