中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (10): 1558-1564.doi: 10.3969/j.issn.2095-4344.2017.10.014

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

胶原涂层对3D打印种植体表面生物相容性的影响

李赛娜1,2,康跻耀2,高建萍2,高  毅3,罗元明4,张贵锋2,王明林1   

  1. 1山东农业大学食品科学与工程学院,山东省泰安市  271018; 2中国科学院过程工程研究所生化工程国家重点实验室,北京市  100190;3南方医科大学珠江医院,广东省广州市  510280;4中国科学院微生物研究所,北京市  100190
  • 收稿日期:2016-11-13 出版日期:2017-04-08 发布日期:2017-05-08
  • 通讯作者: 张贵锋,博士,研究员,博士生导师,中国科学院过程工程研究所生化工程国家重点实验室,北京市 100190
  • 作者简介:李赛娜,女,1990年生,山东省聊城市人,汉族,2013年南京财经大学毕业,主要从事胶原研究。
  • 基金资助:

    广东省自然科学基金资助项目(2014A030312013);国家高技术研究发展计划(863)基金资助项目(2014AA022109)

Influence of collagen coating on the biocompatibility of three-dimensional printed implants

Li Sai-na 1, 2, Kang Ji-yao2, Gao Jian-ping2, Gao Yi3, Luo Yuan-ming4, Zhang Gui-feng2, Wang Ming-lin1   

  1. 1 College of Food Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong Province, China; 2 National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; 3 Zhujiang Hospital of Southern Medical University, Guangzhou 510280, Guangdong Province, China; 4 Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2016-11-13 Online:2017-04-08 Published:2017-05-08
  • Contact: Zhang Gui-feng, M.D., Researcher, Doctoral supervisor, National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • About author:Li Sai-na, College of Food Science and Engineering, Shandong Agricultural University, Tai’an 271018, Shandong Province, China; National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Supported by:

    the Natural Science Foundation of Guangdong Province, No. 2014A030312013; the National High-Tech Research and Development Program of China (863 Program), No. 2014AA022109

摘要:

文章快速阅读:

 

 

文题释义:
液质联用
:又叫液相色谱-质谱联用技术,以液相色谱作为分离系统,质谱为检测系统。样品在质谱部分和流动相分离,被离子化后,经质谱的质量分析器将离子碎片按质量数分开,经检测器得到质谱图。液质联用体现了色谱和质谱优势的互补,将色谱对复杂样品的高分离能力,与质谱具有高选择性、高灵敏度及能够提供相对分子质量与结构信息的优点结合起来,在药物分析、食品分析和环境分析等许多领域得到了广泛的应用。
基于3D打印的钛合金片进行胶原覆层:通过化学偶联法将Ⅰ型胶原和Ⅱ型胶原覆层在钛合金片(Ti6Al4V)表面,以化学键连接得到的胶原涂层具有更强的稳定性。作为偶联剂的KH550无毒性、致畸性和致突变性,具有防腐蚀作用,可水解释放生物活性硅醇,不仅可以作为胶原的活性接枝部分,同时可作为一种骨修复材料。


背景:金属等惰性生物材料存在生物相容性差、组织结合力弱等问题,从而导致种植牙或骨植入物的使用效果较差。因此,如何增强惰性生物材料的生物相容性成为了近几年的研究热点。
目的:对钛合金材料进行胶原覆层并评价其生物相容性。
方法:以钛合金片(Ti6Al4V)为基质,Ⅰ型胶原和Ⅱ型胶原为覆层材料,3-氨基丙基三乙氧基硅烷(KH550)为偶联剂,对基于3D打印的钛合金片进行胶原覆层。将覆层材料用于小鼠前成骨细胞(MC-3T3-E1)培养,通过细胞培养效果评价其生物相容性,并通过细胞蛋白差异性识别比较不同类型胶原对细胞分化的影响。
结果与结论:①当钛合金片(Φ10 cm)表面含氮量为8.41%时,Ⅰ型胶原覆层量为0.81 mg,Ⅱ型胶原覆层量为0.77 mg;②与空白钛合金片相比,经胶原覆层后的钛合金片细胞贴附状态更好,铺展面积更大,且细胞增殖速率更快,活性更强;③Ⅰ型胶原覆层材料培养的细胞多表达与基质合成有关的蛋白,而Ⅱ型胶原覆层材料培养的细胞多表达与矿化及钙盐沉积有关的蛋白;④结果表明,胶原覆层可提高钛合金材料的生物相容性,且不同胶原类型可影响细胞表达不同功能性蛋白。

ORCID: 0000-0002-3189-8904(李赛娜)

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

关键词: 生物材料, 材料相容性, 钛合金, 胶原, 种植体, 生物相容性, 成骨细胞, 细胞蛋白, 液质联用, 广东省自然科学基金

Abstract:

BACKGROUND: Inert biomaterials such as metal usually hold poor biocompatibility and weak bonding force, which is against the effect of dental or bone implants. Therefore, how to improve their biocompatibility has become the research hotspot.
OBJECTIVE: To prepare collagen-coated titanium alloy (Ti6Al4V), and to assess its biocompatibility.
METHODS: Ti6Al4V served as the matrix, the 3-amino propyl triethoxy silane (KH550) as the crosslinking agent, and the three-dimensional printed titanium alloy coated by collagen type I and II was prepared, respectively. The coated materials were co-cultured with mouse preosteoblasts MC-3T3-E1 to evaluate its biocompatibility. The effect of different kinds of collagen on the cell differentiation was compared by differential recognition of surface proteins.
RESULTS AND CONCLUSION: When the N content on the titanium alloy surface (Φ10 cm) was 8.41%, the cladding quantity of collagen type I and II was 0.81 and 0.77 mg, respectively. Compared with the bare titanium alloy, the cell adhered well and distributed extensively on the coated titanium alloy, which showed strong viability and fast proliferation. The cells cultured on collagen type I coated materials expressed the proteins associated with matrix synthesis, and those on collagen type II coated materials expressed the proteins associated with mineralization. These results clarify that the collagen coating can improve the biocompatibility of titanium alloy, and different types of collagens act on different functional proteins.

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

Key words: Titanium, Alloys, Collagen, Osteoblasts, Biocompatible Materials, Tissue Engineering

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