中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (3): 416-420.doi: 10.3969/j.issn.2095-4344.2015.03.016

• 纳米生物材料 nanobiomaterials • 上一篇    下一篇

含纳米SiO2或纳米TiO2微弧氧化纯镁生物涂层可促进成骨细胞增殖及活性

刘继光,王立峰,李慕勤,高 燕,王晓伟   

  1. 佳木斯大学,黑龙江省高校生物医学材料重点实验室,黑龙江省佳木斯市 154007
  • 出版日期:2015-01-15 发布日期:2015-01-15
  • 通讯作者: 李慕勤,教授,佳木斯大学,黑龙江省高校生物医学材料重点实验室,黑龙江省佳木斯市 154007
  • 作者简介:刘继光,男,1965年生,汉族,教授,主要从事生物医学材料研究。
  • 基金资助:

    国家自然科学基金(31070859,31370979);黑龙江省自然科学基金重点项目(ZD201008);黑龙江省高校创新团队建设计划项目(2012TD010):生物医用材料及其表面改性

Pure magnesium micro-arc oxidation coating containing nano-SiO2 or nano-TiO2 promotes proliferation and viability of osteoblasts

Liu Ji-guang, Wang Li-feng, Li Mu-qin, Gao Yan, Wang Xiao-wei   

  1. Key Laboratory of Biomedical Materials in High Education of Heilongjiang Province, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
  • Online:2015-01-15 Published:2015-01-15
  • Contact: Li Mu-qin, Professor, Key Laboratory of Biomedical Materials in High Education of Heilongjiang Province, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
  • About author:Liu Ji-guang, Professor, Key Laboratory of Biomedical Materials in High Education of Heilongjiang Province, Jiamusi University, Jiamusi 154007, Heilongjiang Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31070859, 31370979; the Natural Science Foundation of Heilongjiang Province, No. ZD201008; the Innovation Team Construction Plan in High Education of Heilongjiang Province, No. 2012TD010

摘要:

背景:微弧氧化技术可增强镁及其合金的耐腐蚀性,提高其表面生物性能。

 

目的:为了调控医用纯镁的生物活性,在镀液中添加纳米SiO2或纳米TiO2对纯镁微弧氧化涂层改良,研究其对成骨细胞增殖及分化的影响。

 

方法:将圆形镁片分为3组,其中两组分别置入含7.5 g/L纳米SiO2或4.8 g/L纳米TiO2的硅酸盐电解液中进行表面微弧氧化处理,以未作任何处理的纯镁作为对照。将第3代成骨细胞分别接种于3组试件表面,观察成骨细胞的早期形态、增殖与碱性磷酸酶活性。

 

结果与结论:成骨细胞在纳米SiO2组、纳米TiO2组试件表面生长状态良好,轮廓清晰,呈长梭形,多角形;在对照组表面生长状态较差。CCK-8检测显示,3组细胞吸光度值与碱性磷酸酶活性随时间推移呈上升趋势,纳米SiO2组、纳米TiO2组试件接种1,3,5 d的细胞增殖活性高于对照组;纳米SiO2组、纳米TiO2组接种3,5 d的细胞碱性磷酸酶活性高于对照组。结果表明纳米SiO2或纳米TiO2微弧氧化生物涂层可促进成骨细胞增殖及成骨活性,具有良好的生物相容性。

 

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 骨生物材料, 微弧氧化, 纯镁, 纳米SiO2, 纳米TiO2, 成骨细胞, 国家自然科学基金

Abstract:

BACKGROUND: The micro-arc oxidation technology can enhance the corrosion resistance of magnesium and its alloys to improve the biological properties of the surface.

OBJECTIVE: In order to regulate the biological activity of medical pure magnesium, to modify the micro-arc oxidation coating by adding nano-SiO2 and nano-TiO2 into the plating solution, and to study the biological coating effects on osteoblast proliferation and differentiation.
METHODS: Round magnesium sheets were divided into three groups, respectively treated with silicate electrolyte containing 7.5 g/L nano-SiO2 (nano-SiO2 group), 4.8 g/L nano-TiO2 (nano-TiO2 group), and nothing (control group). Passage 3 osteoblasts were seeded onto the specimen surface in the three groups to observe the early morphology, proliferation and alkaline phosphatase activity of osteoblasts.
RESULTS AND CONCLUSION: Osteoblasts grew well in the nano-SiO2 group and nano-TiO2 group, presenting with clear outline, and the cells were long spindle- and polygon-shaped. But in the control group, the cells grew poor in the specimen surface. Cell counting kit-8 test showed that the absorbance values and alkaline phosphatase activities were increased with time in the three groups. Compared with the control group, the proliferative activity was higher in the nano-SiO2 group and nano-TiO2 group at days 1, 3, 5 after seeding, while the activity of alkaline phosphatase was also higher in the nano-SiO2 group and nano-TiO2 group at days 3, 5 after seeding. These findings indicate the micro-arc oxidation coatings containing nano-SiO2 and nano-TiO2 can promote osteoblast proliferation and osteogenetic activity, which have good biocompatibility.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: Magnesium, Metal Nanoparticles, Osteoblasts

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