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The bioactivity of the synthesized calcium phosphate glasses, they were immersed in simulated body fluid (SBF) for 3, 7, 14 and 21 days. The structural changes that appear on the surface of the glasses synthesized and subsequently soaked in simulated human fluid were studied by X-ray diffraction. All glasses demonstrate their bioactivity after only three days of immersion in simulant body fluid (SBF), reaching a maximum of bioactivity after 14 days of immersion. The X-ray diffraction (XRD) investigation aimed to identify the crystalline phases associated with the bioactivity process, namely the presence of stoichiometric hydroxyapatite and calcium-deficient hydroxyapatite, carbonates, phosphates, etc. The formation of carbonated hydroxyapatite (HApC) is an advantage for strengthening the bone-implant interfacial bond. The enhanced bioactivity of the doped glasses makes them promising candidates for bone regeneration, facilitating faster healing and improved outcomes.

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Study of the Calcium Phosphate Glasses Doped with Silver and Copper II. Study of Bioactivity by XRD Analysis

  • 章节

  • 发表日期：

    2026年

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  • Daniela Avram,
  • Dan Nicolae Ungureanu,
  • Ionica Ionita,
  • Cosmina Cristiana Avram,
  • Aurora Anca Poinescu

摘要

The bioactivity of the synthesized calcium phosphate glasses, they were immersed in simulated body fluid (SBF) for 3, 7, 14 and 21 days. The structural changes that appear on the surface of the glasses synthesized and subsequently soaked in simulated human fluid were studied by X-ray diffraction. All glasses demonstrate their bioactivity after only three days of immersion in simulant body fluid (SBF), reaching a maximum of bioactivity after 14 days of immersion. The X-ray diffraction (XRD) investigation aimed to identify the crystalline phases associated with the bioactivity process, namely the presence of stoichiometric hydroxyapatite and calcium-deficient hydroxyapatite, carbonates, phosphates, etc. The formation of carbonated hydroxyapatite (HApC) is an advantage for strengthening the bone-implant interfacial bond. The enhanced bioactivity of the doped glasses makes them promising candidates for bone regeneration, facilitating faster healing and improved outcomes.