CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu 630006, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
CSIR-Central Electrochemical Research Institute, Karaikudi, Tamil Nadu 630006, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
Mater Sci Eng C Mater Biol Appl. 2020 Apr;109:110558. doi: 10.1016/j.msec.2019.110558. Epub 2019 Dec 14.
Here we report silver incorporated anatase TiO developed on Ti metal by HO-AgNO and heat treatment to have faster biomineralisation or apatite-forming ability in simulated body fluid (SBF). Apatite-forming ability has been investigated concerning heat treatment temperatures ranges, 400-800 °C and duration of soaking period in SBF. The apatite formation showed an increasing trend with increase in the heat treatment temperatures up to 600 °C and beyond that the Ti metal lost this ability. XRD as wells as Raman results of such chemical and heat-treated Ti metal at different temperatures further correlates the apatite nucleation directly in relation with that of anatase to rutile TiO formation. Further, a time dependent apatite mineralisation study by XPS revealed simultaneous calcium and phosphate deposition at the early stage of soaking in SBF. Therefore, the apatite nucleation in the present chemically treated Ti metal depends on the crystalline phase of TiO formed by HO and heat treatment along with Ag ion release.
在这里，我们报告了通过 HO-AgNO 和热处理在 Ti 金属上开发的负载银锐钛矿 TiO2，使其在模拟体液 (SBF) 中具有更快的生物矿化或磷灰石形成能力。已经研究了热处理温度范围为 400-800°C 和在 SBF 中浸泡时间对磷灰石形成能力的影响。磷灰石的形成随着热处理温度的升高呈上升趋势，在 600°C 以上，Ti 金属失去了这种能力。XRD 和拉曼结果表明，在不同温度下进行化学和热处理的 Ti 金属与锐钛矿到金红石 TiO2 的形成直接相关。此外，通过 XPS 进行的时间依赖性磷灰石矿化研究表明，在 SBF 浸泡的早期阶段同时进行钙和磷酸盐的沉积。因此，本研究中经过化学处理的 Ti 金属中的磷灰石成核取决于 HO 和热处理形成的 TiO 的晶体相以及 Ag 离子的释放。
