Investigations on physico-morphology and spectral studies of fluorapatite-doped 46S19 bioactive glass hybrid biocomposites coated with gum Arabic and Ajwa seed powder for enhanced osteogenic applications

Abstract

In the biomedical field, there is increased interest in developing bioactive materials that have the ability to bond with hard and soft tissues of the human body. As the first biomaterials that will be used in the implants must themselves possess high osteogenic properties, many scientists have started manufacturing them. This work involved the preparation of the bioactive glass powder 46S19 and the fluorapatite powder FA using the sol-gel method with organic acid. The powders used in the preparation of hybrid biocomposites samples are identified using Fourier transform infrared (FTIR) spectroscopy to identify the presence of specific functional groups and phase composition, which are crucial for understanding the bioactivity. Pure bioactive glass and fluorapatite-doped bioactive glass of samples by increasing the concentrations of fluorapatite from 5 wt. % to 25 wt. % by pressing uniaxially at pressure of 624 MPs and sintered in air at 1000 °C temperatures for two hours have been synthesized. The resulting sintered samples are coated with a suspended solution of gum Arabic and Ajwa date seed powders to form hybrid biocomposites grafting material for bone implantation. Fabricated hybrid biocomposites samples are characterized through morphological analysis and physical tests. Emission scanning electron microscopy (FESEM) examination of proposed hybrid biocomposites samples showed  the size of the particles as well as the bonding between them. The porosity and linear shrinkage of the study results showed that hybrid biocomposite samples slightly reduced with an increase the weight percentage of fluorapatite that acts as a filler in 46S19 BG.