کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1430008 | 987192 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of a bi-structured hybrid in a CaO-SiO2-PTMO system and in vitro evaluation on its potential of bone-bonding property
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
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چکیده انگلیسی
Organically modified silicates incorporated with calcium salts produce novel, bioactive materials, which bond directly to living bone, because after exposure to a physical environment, calcium silicates have a high hydroxyapatite-deposit potential. In this study, transparent, monolithic, bi-structured hybrids were prepared using a sol-gel process for the CaO-SiO2-PTMO system. To establish the bi-structure, two types of sols were prepared: a polymer-rich sol that had a starting composition of PTMO/TEOS in an 80/20 mass ratio and a ceramic-rich sol that had a starting composition of TEOS/Ca(NO3)2 in a 1/0.3 molar ratio. The bi-structured hybrid was synthesized using a gelation process, where the ceramic-rich sol was placed on the polymer-rich wet gel. An interfacial structure with tight binding was established between the two gels that had the potential to form calcium phosphate within a period of 6Â h on the bi-structured hybrid. This process led to the successful synthesis of a bi-structured hybrid with a high potential for bone-bonding property, which was also flexible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 30, Issue 3, 6 April 2010, Pages 454-459
Journal: Materials Science and Engineering: C - Volume 30, Issue 3, 6 April 2010, Pages 454-459
نویسندگان
Mi-Young Koh, Hyun-Min Kim, Chikara Ohtsuki,