中国组织工程研究

中国组织工程研究 ›› 2012, Vol. 16 ›› Issue (8): 1382-1386.doi: 10.3969/j.issn.1673-8225.2012.08.012

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

紫外光激发纯钛光催化作用对降解能力和体外矿化能力的影响*★

高  岩，周  磊，蒋  颖，郭泽鸿，卢海宾，李少冰   

  1. 南方医科大学附属口腔医院，广东省口腔医院，广东省广州市   510280
  • 收稿日期:2011-11-27 修回日期:2011-12-27 出版日期:2012-02-19 发布日期:2012-02-19
  • 通讯作者: 周磊，博士，主任医师，教授，博士生导师，南方医科大学附属口腔医院，广东省口腔医院，广东省广州市 510280 Zho668@ 263.net
  • 作者简介:高岩★，男，1984年生，山东省淄博市人，南方医科大学在读硕士，主要从事口腔种植临床研究。Gaoyan518_008@163.com
  • 基金资助:

    国家自然科学基金项目(81170998)。

Effect of ultraviolet induced photocatalysis to titanium on the activities of degradation and mineralization in vitro 

Gao Yan, Zhou Lei, Jiang Ying, Guo Ze-hong, Lu Hai-bin, Li Shao-bing   

  1. Affiliated Stomatological Hospital of Southern Medical University &Guangdong Provincial Stomatological Hospital, Guangzhou  510280, Guangdong Province, China
  • Received:2011-11-27 Revised:2011-12-27 Online:2012-02-19 Published:2012-02-19
  • Contact: Zhou Lei, Doctor, Chief physician, Doctoral supervisor, Affiliated Stomatological Hospital of Southern Medical University & Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China zho668@263.net
  • About author:Gao Yan★, Studying for master’s degree, Affiliated Stomatological Hospital of Southern Medical University & Guangdong Provincial Stomatological Hospital, Guangzhou 510280, Guangdong Province, China Gaoyan518_008@ 163.com
  • Supported by:

    National Natural Science Foundation of China, No. 81170998*

PDF

376

被引次数

3

摘要：

背景：紫外光因其照射纯钛表面可以引起表面亲水性的显著提高，近几年作为一种新的钛表面处理手段成为研究的热点。
目的：探讨紫外光激发纯钛表面光催化作用引起的降解能力和体外矿化能力。
方法：打磨抛光纯钛和微弧氧化纯钛表面接受紫外光处理，通过亚甲基蓝降解实验检测紫外光激发纯钛表面光催化作用，体外浸泡模拟体液评价体外诱导磷灰石能力。酶标仪检测12 h时亚甲基蓝溶液吸光度值；2周时扫描电镜观察纯钛表面磷灰石沉积后形貌，X射线衍射仪检测表面晶相。
结果与结论：紫外光激发微弧氧化纯钛表面产生的光催化降解作用强于打磨抛光纯钛表面(P < 0.05)，微弧氧化纯钛表面经紫外光照射后体外矿化能力显著增强。提示紫外光作为一种新的钛表面处理方法，可以增强材料生物活性。
关键词：光催化；钛；牙种植体；降解；矿化
doi:10.3969/j.issn.1673-8225.2012.08.012

关键词: 光催化, 钛, 牙种植体, 降解, 矿化

Abstract:

BACKGROUND: The ultraviolet (UV) as one new titanium surface treatment has become the research spot in recent years for the surface hydrophilicity of titanium can be enhanced significantly after UV treatment.
OBJECTIVE: To explore the degradation and mineralized abilities induced by photocatalysis on titanium surface after UV treatment.
METHODS: Machined and micro-arc oxidation titanium samples were treated with UV. The photocatalysis stimulated by UV was detected by the degradation of methylene blue. The generation of apatite of the samples was evaluated by immersing in the simulated body fluid in vitro. Absorbance values of methylene blue at 12 hours were measured by microplate reader. The morphology of the sample surfaces after apatite deposition was observed under scanning electron microscopy at 2 weeks and the crystalline phase of sample surfaces was detected by X-ray diffraction.
RESULTS AND CONCLUSION: The photocatalytic degradation ability on the micro-arc oxidation titanium surfaces was stronger than the machined surfaces after UV treatment (P < 0.05). The mineralized ability of the micro-arc oxidation titanium surfaces were significantly enhanced after UV treatment. The results indicated that UV as one new titanium surface treatment has a good prospect which can enhance the bioactivity of titanium.

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