Ultrahigh strength of three-dimensional printed diluted magnesium doping wollastonite porous scaffolds

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...

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Bibliographic Details
Published in:MRS communications 2015-12, Vol.5 (4), p.631-639
Main Authors: Xie, Jiajun, Shao, Huifeng, He, Dongshuang, Yang, Xianyan, Yao, Chunlei, Ye, Juan, He, Yong, Fu, Jianzhong, Gou, Zhongru
Format: Article
Language:English
Subjects:
Biomaterials
Characterization and Evaluation of Materials
Materials Engineering
Materials Science
Nanotechnology
Polymer Sciences
Research Letters
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Summary: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.
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2015.74