23 Jul Preparation method of mesoporous bioactive glass nanotube stent
Abstract
The invention discloses a preparation method of a mesoporous bioactive glass nanotube stent. The preparation method comprises the following steps: by taking silicate ester as a silicon source, taking tetrahydrated calcium nitrate or calcium oxide as a calcium source and taking triethyl phosphate as a phosphorus source, performing water bath stirring, hydrolysis and polycondensation on silicon source pre-adsorbed bacterial cellulose and a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer which serve as a dual-template agent under the assistance of a sol-gel technology, thereby preparing a precursor hybrid material; removing the dual-template agent through a calcining thermal treatment technology, thereby obtaining the bioactive glass nanotube stent which is of a mesoporous and three-dimensional spatial network structure and has a uniform wall thickness. The preparation method disclosed by the invention can realize batch production and is high in production efficiency and environmentally-friendly; furthermore, the mesoporous bioactive glass nanotube stent has a large specific surface area, is of a hollow and three-dimensional spatial structure, is extremely high in pore volume and excellent in bioactivity and biocompatibility, and has wide application value in the field of bone tissue engineering.
Year: 2017
Country: CN
Doc No: 106902393