Abstract
Beyond the traditional phase conversion or biphase mixing hybrid, we developed the dilute magnesium-doped wollastonite inks and three-dimensional (3D) printing approaches to fabricate the ultrahigh strength bioceramic porous scaffolds. The mechanical strength (>120 MPa) of the porous bioceramics was an order of magnitude higher than the pure wollastonite and other stoichiometric Ca-Mg silicate porous bioceramics. This abnormal but expected improvement in strength in bioceramic scaffolds is equivalent or even superior to the mechanical requirement in load-bearing bone defects. The breakthrough is totally unexpected, and it quickly opens the door for the 3D printing bioceramics manufacture and large-area segmental bone defect repair applications.
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Acknowledgments
This work was supported by the Zhejiang Provincial Natural Science Foundation of China (grant no. LZ14E020001), the National Natural Science Foundation of China (grant numbers 81271956 and 51221004), Science and Technology Department of Zhejiang Province Foundation (grant numbers 2015C33119 and 2014C33202), and the National “Twelfth Five-Year” Plan for Science & Technology Support of China (grant no. 2012BAI08B01).
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Xie, J., Shao, H., He, D. et al. Ultrahigh strength of three-dimensional printed diluted magnesium doping wollastonite porous scaffolds. MRS Communications 5, 631–639 (2015). https://doi.org/10.1557/mrc.2015.74
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DOI: https://doi.org/10.1557/mrc.2015.74