Phosphate precipitation at surface of bioactive glasses

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Karlsson KH, Hupa M, Backman R
Publisher: Trans Tech Publications
Publication year: 2000
Journal: Key Engineering Materials
Journal acronym: KEY ENG MAT
Volume number: 192-195
Start page: 219
End page: 222
Number of pages: 4
ISSN: 1013-9826


The bioactivity of low silica glasses is contributed to the surface layer of highly hydrated silica gel formed in vivo. Phosphate precipitation in and at time gel is a complex process involving amorphous and metastable precursors to hydroxyapatite (HAP). In the gel the pH value increases towards time glass, while the molar Ca/P ratio decreases going from 1.5 close to bone to 1 at glass surface. In the present paper time formation of different calcium phosphate compounds is calculated as function of pH.

Last updated on 2019-17-10 at 02:33