Rapid Fabrication of MgNH4PO4·H2O/SrHPO4 Porous Composite Scaffolds with Improved Radiopacity via 3D Printing Process
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Synthesis of SrHPO4 Powder
2.3. Fabrication of MgP/SrP 3D Porous Composite Scaffolds
2.4. Characterization of the Products
2.5. Porosity Measurement
2.6. X-ray Radiopacity
2.7. Degradation In Vitro
2.8. In Vitro Cytotoxicity Assay
2.9. Cell Adhesion on the Scaffolds
2.10. Statistical Analysis
3. Results
3.1. Phases, Components, Morphologies, and Porosities of the Scaffolds
3.2. X-ray Radiopacity
3.3. In Vitro Degradation
3.4. In Vitro Cytotoxicity Assay
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Scaffold | SrHPO4 wt% | MgO wt% | Sr:Mg a | Sr:Mg b | Porosity% |
---|---|---|---|---|---|
S0 | 0 | 100 | 0:100 | 0:100 | 50.85 ± 3.78% |
S1 | 10 | 90 | 2.42:100 | 2.49:100 | 51.52 ± 4.77% |
S3 | 30 | 70 | 9.34:100 | 9.06:100 | 50.29 ± 3.71% |
S5 | 50 | 50 | 21.79:100 | 21.05:100 | 52.15 ± 3.73% |
Sample | Strut a | Pore a | Tunnel a | Cross-Section a |
---|---|---|---|---|
S0 | 0.35–0.52 | 0.28–0.45 | 0.30–0.45 | 0.35–0.48 |
S1 | 0.35–0.48 | 0.29–0.45 | 0.31–0.42 | 0.42–0.49 |
S3 | 0.43–0.53 | 0.26–0.38 | 0.28–0.34 | 0.43–0.48 |
S5 | 0.28–0.41 | 0.42–0.61 | 0.38–0.45 | 0.38–0.43 |
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Cao, X.; Ge, W.; Wang, Y.; Ma, M.; Wang, Y.; Zhang, B.; Wang, J.; Guo, Y. Rapid Fabrication of MgNH4PO4·H2O/SrHPO4 Porous Composite Scaffolds with Improved Radiopacity via 3D Printing Process. Biomedicines 2021, 9, 1138. https://doi.org/10.3390/biomedicines9091138
Cao X, Ge W, Wang Y, Ma M, Wang Y, Zhang B, Wang J, Guo Y. Rapid Fabrication of MgNH4PO4·H2O/SrHPO4 Porous Composite Scaffolds with Improved Radiopacity via 3D Printing Process. Biomedicines. 2021; 9(9):1138. https://doi.org/10.3390/biomedicines9091138
Chicago/Turabian StyleCao, Xiaofeng, Wufei Ge, Yihu Wang, Ming Ma, Ying Wang, Bing Zhang, Jianing Wang, and Yanchuan Guo. 2021. "Rapid Fabrication of MgNH4PO4·H2O/SrHPO4 Porous Composite Scaffolds with Improved Radiopacity via 3D Printing Process" Biomedicines 9, no. 9: 1138. https://doi.org/10.3390/biomedicines9091138