A unified in vitro evaluation for apatite-forming ability of bioactive glasses and their variants.
J Mater Sci Mater Med
; 26(2): 115, 2015 Feb.
Article
en En
| MEDLINE
| ID: mdl-25665841
ABSTRACT
The aim of this study was to propose and validate a new unified method for testing dissolution rates of bioactive glasses and their variants, and the formation of calcium phosphate layer formation on their surface, which is an indicator of bioactivity. At present, comparison in the literature is difficult as many groups use different testing protocols. An ISO standard covers the use of simulated body fluid on standard shape materials but it does not take into account that bioactive glasses can have very different specific surface areas, as for glass powders. Validation of the proposed modified test was through round robin testing and comparison to the ISO standard where appropriate. The proposed test uses fixed mass per solution volume ratio and agitated solution. The round robin study showed differences in hydroxyapatite nucleation on glasses of different composition and between glasses of the same composition but different particle size. The results were reproducible between research facilities. Researchers should use this method when testing new glasses, or their variants, to enable comparison between the literature in the future.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Apatitas
/
Líquidos Corporales
/
Ensayo de Materiales
/
Cerámica
/
Materiales Biomiméticos
/
Vidrio
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Revista:
J Mater Sci Mater Med
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Reino Unido