Development and Characterization of Gadolinium and Copper Reinforced Bioactive Glass: An In Vitro Study

钆铜增强生物活性玻璃的研制与表征:一项体外研究

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Abstract

INTRODUCTION: Bioactive glass, an innovative alloplastic material utilizing a matrix of silica particles combined with calcium and phosphorus, has been widely employed for the regeneration of bony defects due to its bone-forming capabilities and biocompatibility. Nevertheless, it comes with several drawbacks, including a slow degradation rate, low mechanical strength, and susceptibility to fractures. To address these issues, the present research was done to develop and characterize a novel bioactive glass incorporating gadolinium (Gd) and copper (Cu). METHODS: The bioactive glass doped with Gd and Cu were synthesized and subjected to characterization through X-ray diffraction (XRD), scanning electron microscopy (SEM), and attenuated total reflectance-infrared (ATR-IR) analysis. RESULTS: The bioactive glass, enriched with Gd and Cu, underwent analysis using ATR-IR spectroscopy, XRD, and SEM. ATR-IR revealed characteristic silicate bands, while SEM indicated the presence of particles larger than 4 μm. XRD analysis identified the formation of Na(2)Ca(4)(PO(4))(2)SiO(4) (Silicorhenatite), Na(2)Ca(2)Si(3)O(9) (Combeite), and wollastonite (calcium inosilicate mineral; CaSiO(3)). The crystalline nature of these compounds contributed to the favorable mechanical properties of the bioactive glass. CONCLUSION: In summary, the creation of the innovative Gd-Cu-incorporated bioactive glass demonstrates favorable mechanical characteristics, suggesting significant promise for augmenting bone regeneration.

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