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.
Highlights
Various kinds of bioactive materials like hydroxyapatite, bioglasses, bioglass-ceramics and calcium phosphate ceramics have attracted a strong interest of research over the last decades and have shown significant potential in biomedical research field
The objective of this paper is to report the preparation of mesoporous glasses in the system SiO2-CaO-P2O5 through sol-gel route
The solution was prepared as follows: 2.5 g of commercial surfactant (C10H20BrN, C19H42BrN, C22H48BrN) was dissolved in 50 mL of deionized water and mixed with 75 mL of absolute ethanol, at room temperature. 3.6 g of Tetraethyl orthosilicate (TEOS) is further added to this solution and kept under strong stirring for one hour
Summary
Various kinds of bioactive materials like hydroxyapatite, bioglasses, bioglass-ceramics and calcium phosphate ceramics have attracted a strong interest of research over the last decades and have shown significant potential in biomedical research field. These glasses could facilitate bone integration of the implant [1], they are intended to replace bone through a bone defect area in the human skeleton [2] [3]. Porous biomaterials have been produced by several techniques such as the use of polymeric.
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