Method for preparing porous bone scaffold by laser and increasing performance by adding zinc oxide
A performance, laser sintering technology, applied in the field of bone tissue engineering, can solve the problems of fast biodegradation, inability to match the rate, limited use, etc., to achieve the effect of promoting proliferation, refining grain size, and enhancing mechanical properties
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[0028] The specific implementation manner of the present invention will be further described below in conjunction with an embodiment, but the content of the present invention is not limited thereto.
[0029] 1) A small amount of ZnO powder was added to β-TCP powder, and mixed uniformly by mechanical mixing method to prepare β-TCP / ZnO mixed powder with a ZnO mass fraction of 2.5%.
[0030] 2) Place the obtained mixed powder in the self-developed SLS system. Under the control of the computer, the laser selectively sinters the powder according to the interface profile information. After one layer is completed, the next layer is sintered, and finally a product with Three-dimensional interconnected porous β-TCP scaffold. The porous β-TCP scaffold by selective laser sintering is shown in the attached figure 1 , which shows that the selective laser sintering technique can prepare porous β-TCP scaffolds with three-dimensional interconnection.
[0031] 3) The mechanical properties of...
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