2025/12/24 by E. Salahinejad, Salahinejad, E., M. Jafari Baghjeghaz +1 · 1 citation
Engineering · Environmental Science · Materials Science · #Applied Physics (physics.app-ph) #Biological Physics (physics.bio-ph) #Bone Tissue Engineering Materials #Chemical Physics (physics.chem-ph) #Clay minerals and soil interactions #FOS: Physical sciences #Fluoride Effects and Removal #Materials Science (cond-mat.mtrl-sci) #Medical Physics (physics.med-ph)
paper · doi:10.48550/arxiv.2512.21369
openalex publication_date 2025/12/24 · openalex created_date 2025/12/30 · openalex updated_date 2026/07/28
In this research, a novel group of Ca-Mg oxyfluorosilicates containing different levels of fluoride substituting for oxide was synthesized by an inorganic salt coprecipitation process followed by calcination/sintering. The effects of the incorporation of fluoride on the resultant structural characteristics, apatite-forming ability and biodegradability were evaluated by X-ray diffraction, transmission electron microscopy, scanning electron microscopy/energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, inductively coupled plasma spectroscopy and pH measurements. According to the results, the samples containing up to 2 mol% F present a single-phase structure of diopside (MgCaSi2O6) doped with F. It was also found that to meet the most biomineralization characteristic, the optimal value of fluoride in the homogeneous samples is 1 mol%. In this regard, on the one hand, the partial incorporation of fluoride into apatite (via forming fluorohydroxyapatite) and, on the other hand, the absence of fluorite (CaF2) as a consumer of Ca in the deposits are responsible for achieving the most apatite-forming ability circumstance controlled by an ion-exchange reaction mechanism. In conclusion, this study reflects the merit of the optimization of fluoride-doping into Ca-Mg silicates for development in biomedicine.