Figure 5.

In vitro enzymatic degradation behavior of three-dimensional-printed scaffolds. (A) Remaining weight over incubation time after the hydrogel scaffolds were immersed in hyaluronidase solution, and optical images of the scaffolds before and after enzymatic degradation. (B) Fourier-transform infrared spectra of (a) glycidyl methacrylate-hyaluronic acid (HAc) hydrogel, (b) alginate hydrogel, (c) HAc-alginate (HAc-Alg) after degradation, and (d) HAc-Alg/30 wt% calcium phosphate (CaP) after degradation. (C) X-ray diffractometer pattern of HAc-Alg/30 wt% CaP scaffolds after degradation.