𝔖 Bobbio Scriptorium
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Evolution of porosity duringin vitro hydroxycarbonate apatite growth in sol-gel glasses

✍ Scribed by Vallet-Reg�, M. ;Arcos, D. ;P�rez-Pariente, J.

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
488 KB
Volume
51
Category
Article
ISSN
0021-9304

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✦ Synopsis

A bioactive glass of composition (mol %) SiO 2 58, CaO 36, P 2 O 5 6 was obtained using the sol-gel method. Changes in porosity during the growth of a hydroxycarbonate apatite (HCA) phase were studied at different stages of the process. The high Ca (II) content led to a higher degree of porosity and enhancement of Ca 2+ released from surface and bulk when the glass was soaked into simulated body fluid (SBF). Saturation of the media (SBF) together with the porosity of the material led to fast growth of HCA on the surface and into the pores.

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XRD, SEM-EDS, and FTIR studies ofin vitro growth of an apatite-like layer on sol-gel glasses
✍ Vallet-Reg�, M. ;Romero, A. M. ;Ragel, C. V. ;LeGeros, R. Z. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 427 KB

A glass with a composition (in mole %) of: SiO 2 (70), CaO (26), and P 2 O 5 (4) was obtained using a sol-gel method. The in vitro bioactivity of the glass was assessed by determining the changes in surface morphology and composition after soaking in simulated body fluid (SBF) for periods of up to 1