Synthesis and Characterization of Highly Porous TiO2 Scaffolds for Bone Defects
The purpose of this study was to fabricate and investigate the highly porous structure using titanium dioxide, which is a candidate for bone defect repairing. For this purpose, TiO2 scaffolds were synthesized using titanium butoxide, Pluronic F127 surfactant, and polyurethane foam blocks. Therefore, a colloid includes titanium butoxide and F127 and the polyurethane foams were immersed in it. The samples were annealed at different temperatures in the range of 500 to 600 ° C. The results of simultaneous thermal analysis (STA) test showed that volatile materials left the system completely when the temperature reached 550 ºC. Also small angle X-ray scattering (SAXS) test revealed that these scaffolds composed of highly ordered mesoporous structures. The obtained scaffolds at 550 ºC had specific surface area of 85.736 m2g-1with the mean mesopore size of 7.0498 nm and macroporosity in the range of 100 to 350 μm. The presence of mesopores and their distribution were investigated with transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). The base scaffold was then immersed in a simulated body solution for 3,7and 14 days and analyzed by scanning electron microscopy (SEM) and energy-dispersive X-ray. The results show its ability for apatite formation.
Article Type:
Research/Original Article
International Journal of Engineering, Volume:33 Issue:1, 2020
134 - 140  
روش‌های دسترسی به متن این مطلب
اشتراک شخصی
در سایت عضو شوید و هزینه اشتراک یک‌ساله سایت به مبلغ 300,000ريال را پرداخت کنید. همزمان با برقراری دوره اشتراک بسته دانلود 100 مطلب نیز برای شما فعال خواهد شد!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی همه کاربران به متن مطالب خریداری نمایند!