ABSTRACT In this study, the sol–gel method was used to add MgO and SrBr2 to biografts containing Ca(NO3)2·4H2O, SiO2, P2O5, H3BO3 and AgNO3. In addition, urea (15–35% by weight) was added to these biografts in different ratios. FTIR, XRD and SEM–EDX analyses were performed in order to observe the morphological effects. Antibacterial tests were carried out using S.aureus and E.coli bacteria. As a result of FTIR analysis, it was observed that H–OH, CO3−, , , Si–O and Si–O–Si compound structures were formed in the biografts. XRD analysis was found that HA (Hydroxyapatite), β-TCP, CaSiO3, CaMgSi2O6, Ca3MgSi2O8, CaMgSi2O6 and Mg17Sr2 compound structures were formed. Antibacterial analysis with E. coli showed that all biografts except the one that contained the highest amount of urea (35% by weight) yielded colony counting values close to the negative control. For S. aureus, the opposite result was observed.

中文翻译：

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溶胶-凝胶法制备的银、镁、硅、锶改性磷酸钙骨水泥的形态学和抗菌作用

摘要 在这项研究中，溶胶-凝胶法被用来将 MgO 和 SrBr2 添加到含有 Ca(NO3)2·4H2O、SiO2、P2O5、H3BO3 和 AgNO3 的生物移植物中。此外，尿素（按重量计 15-35%）以不同的比例添加到这些生物移植物中。进行FTIR，XRD和SEM-EDX分析以观察形态效应。使用金黄色葡萄球菌和大肠杆菌进行抗菌试验。作为 FTIR 分析的结果，观察到在生物移植物中形成了 H-OH、CO3-、...、Si-O 和 Si-O-Si 化合物结构。XRD分析发现形成了HA（羟基磷灰石）、β-TCP、CaSiO3、CaMgSi2O6、Ca3MgSi2O8、CaMgSi2O6和Mg17Sr2化合物结构。E. 抗菌分析 大肠杆菌表明，除了含有最高量尿素（按重量计 35%）的生物移植物外，所有生物移植物都产生接近阴性对照的菌落计数值。对于金黄色葡萄球菌，观察到相反的结果。