Nanocrystalline Titanium to Mesoporous Anatase with High Bioactivity
Nanocrystalline Titanium to Mesoporous Anatase with High Bioactivity
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DOI：
10.1021/cg070428a
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发表时间：
2007-12
影响因子：
3.8
通讯作者：
Mingwei Wen;J. Gu;Gang Liu;Z. B. Wang;Jian Lu
中科院分区：
文献类型：
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作者：
Mingwei Wen;J. Gu;Gang Liu;Z. B. Wang;Jian Lu
本文报道了采用复合表面机械摩擦处理（SMAT）在大块钛（Ti）表面生成具有生物活性的锐钛矿。将工业纯钛板在真空中SMAT 1 h，得到厚度约30 μ m的纳米晶层，然后将纳米晶Ti（约30 nm）通过化学氧化和煅烧转化为晶粒尺寸约10 nm的介孔锐钛矿。中孔锐钛矿在模拟体液中浸泡后表现出良好的生物活性；这可以归因于SMAT Ti表面独特的纳米结构。
In present study, the formation of bioactive anatase on bulk titanium (Ti) by hybrid surface mechanical attrition treatment (SMAT) is reported. A commercial pure Ti plate first underwent SMAT in a vacuum for I h to produce a nanocrystalline layer with a thickness of about 30 mu m, and then the nanocrystalline Ti (similar to 30 nm) was transformed into mesoporous anatase with a grain size similar to 10 nm by chemical oxidation and calcination. The mesoporous anatase showed excellent bioactivity while being soaked in simulated body fluid; which could be attributed to the unique nanostructure on the SMAT Ti surface.