Porous CaSiO3-CaSO(4)composite scaffolds were successfully prepared by 3D gel-printing (3DGP) technology in this study. In order to further improve the degradation performance of pure CaSiO(3)scaffolds, the effect of different CaSO(4)doping contents on CaSiO3-CaSO(4)composite scaffolds was studied. The results show that when the porous composite scaffolds were placed in simulated body fluid (SBF) for 5 weeks, the weight loss rate was 2.41 (CaSiO3-1CaSO4), 3.97 (CaSiO3-3CaSO4), 4.18 (CaSiO3-5CaSO4), 6.87 (CaSiO3-7CaSO4), and 12.93 (CaSiO3-9CaSO4), respectively, which could be concluded that CaSO(4)doping has a significant effect on improving the biodegradability of CaSiO(3)scaffolds. And CaSO(4)doping can also effectively improve the compressive strength of composite scaffolds and that of CaSiO3-3CaSO(4)composite scaffolds was tested as 54.67 MPa, and the shrinkage rate of porous composite scaffolds was nearly 11.4, which meets the application requirements of bone repairing engineering.
展开▼
