TITLE:
Influence of Synthesis Parameters on the Structure, Pore Morphology and Bioactivity of a New Mesoporous Glass
AUTHORS:
Nouha Letaief, Anita Lucas-Girot, Hassane Oudadesse, Rachida Dorbez-Sridi
KEYWORDS:
Mesoporous Glass; Sol-Gel; Bioactive Glass; Hydroxyapatite
JOURNAL NAME:
Journal of Biosciences and Medicines,
Vol.2 No.2,
April
29,
2014
ABSTRACT: The main objective of the present work was
to investigate the effect of surfactant type and synthesis temperature on the
structure, porosity and the bioactivity of 92S6 (92% SiO2, 6% CaO, and 2% P2O5 mol %) mesoporous sol-gel glasses. The aim was to provide a basis for
controlling the bioactive behavior of the different 92S6 samples used for
tissue regeneration and for biomedical engineering in order to obtain
sufficient performances by controlling the porosity of the glass. In this
paper, a series of mesoporous bioactive glasses were synthesized using three
different surfactants (C10H20BrN, C19H42BrN, C22H48BrN) at different aging
temperatures (20°C, 40°C and 60°C). The surfactant was removed by calcination,
which was carried out by increasing the temperature to 650°C for 6 h. A
comparison among these synthesized glasses was conducted and the research
emphasis was placed on the synthesis temperature and the surfactant type
dependence on the textural properties and particularly porosity that were ultimately
responsible for glass bioactivity.