23 Jul Tissue engineering material with bioactive surface structure and preparation method thereof
Abstract
The invention relates to a tissue engineering material with a bioactive surface structure and a preparation method thereof. The tissue engineering material is prepared by using a polyamide material as a matrix and covering an active surface structure containing nano apatite porous surface with thickness of 50-500mu m on the surface, wherein the pore diameter of pores on the surface is 0.5-50mu m. The tissue engineering material is importantly characterized in that the active surface structure rich in the apatite is prepared on the surface of an insulative macromolecule matrix material, the content of the apatite is gradually increased from inside to outside in the surface structure, the physical structure and the chemical properties are stable, and the surface structure is tightly combined with the matrix into an integral structure without phase separation. The porous surface structure rich in the nano apatite has the advantages of simple preparation process and easy control, can be used for preparing the surface bioactive surface layer of the matrix formed by various polyamide materials to meet different clinical demands, and is hopeful to being widely applied to the bone tissue repair.
Year: 2011
Country: CN
Doc No: 101947334