中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (8): 1367-1371.doi: 10.3969/j.issn.2095-4344.2013.08.007

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

类金刚石/酪蛋白磷酸肽复合薄膜修饰钛合金表面成骨细胞的增殖

卜银忠1,王 琳2,冉海琼1,陈军麟1,张俊彦3,刘 斌1   

  1. 1兰州大学口腔医学院,甘肃省兰州市 730000
    2兰州大学第二医院口腔科,甘肃省兰州市 730000
    3中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃省兰州市 730000
  • 收稿日期:2012-05-17 修回日期:2012-07-04 出版日期:2013-02-19 发布日期:2013-02-19
  • 通讯作者: 刘斌,博士,教授,兰州大学口腔医学院,甘肃省兰州市 730000 liubkq@lzu.edu.cn 并列通讯作者:张俊彦,博士,研究员,中国科学院兰州化学物理研究所,甘肃省兰州市 730000 zhangjunyan@licp.cas.cn
  • 作者简介:卜银忠★,男,1981年生,甘肃省兰州市人,汉族,兰州大学口腔医学院在读硕士,主要从事口腔修复和生物材料学方面的研究。 buyinzhong@163.com

Osteoblast proliferation on the surface of titanium alloy modified by diamond-like carbon/casein phosphopeptide composite film

Bu Yin-zhong1, Wang Lin2, Ran Hai-qiong1, Chen Jun-lin1, Zhang Jun-yan3, Liu Bin1   

  1. 1 School of Stomatology, Lanzhou University, Lanzhou 730000, Gansu Province, China
    2 Department of Stomatology, Lanzhou University Second Hospital, Lanzhou 730000, Gansu Province, China
    3 National State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu Province, China
  • Received:2012-05-17 Revised:2012-07-04 Online:2013-02-19 Published:2013-02-19
  • Contact: Liu Bin, Doctor, Professor, School of Stomatology, Lanzhou University, Lanzhou 730000, Gansu Province, China liubkq@lzu.edu.cn Zhang Jun-yan, Doctor, Investigator, National State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, Gansu Province, China zhangjunyan@licp.cas.cn
  • About author:Bu Yin-zhong★, Studying for master’s degree, School of Stomatology, Lanzhou University, Lanzhou 730000, Gansu Province, China buyinzhong@163.com

摘要:

背景:钛合金表面沉积类金刚石薄膜可提高其摩擦和抗腐蚀性能,但缺乏生物活性,在其表面接枝生物蛋白分子是一种新的生物化学改性途径。
目的:观察成骨细胞在类金刚石/酪蛋白磷酸肽复合薄膜修饰钛合金表面的增殖与黏附。
方法:采用非平衡磁控溅射和多步组装方法在钛合金表面制备类金刚石/酪蛋白磷酸肽复合薄膜。将对数生长期的成骨细胞悬液接种于类金刚石/酪蛋白磷酸肽复合薄膜修饰的钛合金与纯钛合金试件上。
结果与结论:类金刚石/酪蛋白磷酸肽复合薄膜修饰钛合金组细胞增殖率和黏附数量高于纯钛合金组(P < 0.05)。扫描电镜显示,类金刚石/酪蛋白磷酸肽复合薄膜修饰钛合金组成骨细胞胞体显著增大,表面粗糙,边界模糊不清,细胞呈充分的铺展状态;纯钛合金组成骨细胞胞体光滑,边界线条锐利清晰,伸展不良。表明类金刚石/酪蛋白磷酸肽复合薄膜可促进钛合金表面成骨细胞的增殖与黏附。

关键词: 生物材料, 组织工程骨材料, 组织工程口腔材料, 类金刚石薄膜, 钛合金, 酪蛋白磷酸肽, 成骨细胞, 增殖, 黏附, 国家自然科学基金, 生物材料图片文章

Abstract:

BACKGROUND: Titanium alloy surface modification with diamond-like carbon film can improve the friction and corrosion resistance of titanium alloy, but it is lack of biological activity. So fixing biological protein molecules on the diamond-like carbon surface is a kind of new biological chemical modification method.
OBJECTIVE: To observe the proliferation and adhesion of osteoblasts on the titanium alloy surface modification with diamond-like carbon/casein phosphopeptide composite film.
METHODS: Using unbalanced magnetron sputtering and multi-step assembly method diamond-like carbon/ casein phosphopeptide composite film was prepared on titanium alloy surface. The osteoblast suspension at logarithmic growth phase was seeded on the titanium alloy surface modified with or without the diamond-like carbon/casein phosphopeptide composite film.
RESULTS AND CONCLUSION: Compared with the titanium alloy without modification, the adhesion and proliferation of osteoblasts were significantly increased after modification by diamond-like carbon /casein phosphopeptide composite film (P < 0.05). The scanning electron microscope showed the osteoblast body on the surface of titanium alloy increased significantly, presenting with rough surface, fuzzy boundaries, and fully stretched after modification by diamond-like carbon/casein phosphopeptide composite film, but the osteoblasts on the surface of titanium alloy without modification displayed smooth surface, clear boundary, not fully stretched. It is indicated that the prepared diamond-like carbon/casein phosphopeptide composite film can significantly increase the biological activity of titanium alloy.

Key words: biomaterials, tissue engineering bone materials, tissue engineering oral materials, diamond-like carbon film, titanium alloy, casein phosphopeptides, osteoblasts, proliferation, adhesion, the National Natural Science Foundation of China, biomaterial photographs-containing paper

中图分类号: