𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Bioactive glasses as accelerators of apatite bioactivity

✍ Scribed by M. Vallet-Regí; A. Rámila; S. Padilla; B. Muñoz


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
210 KB
Volume
66A
Category
Article
ISSN
1549-3296

No coin nor oath required. For personal study only.

✦ Synopsis


Synthetic carbonatehydroxyapatite is the ceramic closest to the mineral component of human bone and seems, therefore, the optimum material to use in osseous implants. However, in vitro assays performed to determine its bioactivity have shown no positive results after 2 months of assay. With the aim of improving this bioactivity, a new biphasic material was synthesized composed mainly of synthetic carbonatehydroxyapatite and only 5% of a sol-gel bioactive glass. In vitro assays were assessed to determine the bioactive behavior of this new material and revealed that the addition of a minimal amount of bioactive glass is enough to induce bioactivity on synthetic carbonatehydroxyapatites.


📜 SIMILAR VOLUMES


Acceleration of apatite nucleation on mi
✍ C. Aparicio; J.M. Manero; F. Conde; M. Pegueroles; J.A. Planell; M. Vallet-Regí; 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 511 KB

## Abstract The viability of a new two‐step method for obtaining bioactive microrough titanium surfaces for bone replacing implants has been evaluated. The method consists of (1) Grit blasting on titanium surface to roughen it; and (2) Thermo‐chemical treating to obtain a bioactive surface with bon

Electrical polarization of bioactive gla
✍ Obata, Akiko ;Nakamura, Satoshi ;Moriyoshi, Yusuke ;Yamashita, Kimihiro 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 405 KB

## Abstract We evaluated the electrical polarizability of a bioactive glass of the 45S5 type (BG) by thermally stimulated depolarization current (TSDC) measurement based on the effects of the surface charges generated by an electrical polarization treatment on the growth of calcium phosphate crysta

Effect of crystallization on apatite-lay
✍ Filho, Oscar Peitl ;La Torre, Guy P. ;Hench, Larry L. 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 598 KB

The bioactive glass 45S5 was crystallized to 8-100 vol % of crystals by thermal treatments from 550-680°C. The microstructure of the glass-ceramics had a very uniform crystal size, ranging from 8 to 20 pm. Fourier-transform infrared (!?TIR) spectroscopy was used to determine the rate of hydroxycarbo

Surface functionalization of bioactive g
✍ E. Verné; C. Vitale-Brovarone; E. Bui; C. L. Bianchi; A. R. Boccaccini 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 441 KB

## Abstract Different cleaning and silanization methods have been applied to bioactive glasses with the aim of covalently bonding bone morphogenetic proteins (BMP‐2) to the surface. Several glasses, with different bioactivity index, were cleaned with acidic, basic, or neutral aqueous media to inves