中国组织工程研究

• 生物材料综述 biomaterial review • 上一篇    下一篇

医用镁合金表面处理的研究与应用

张永强1,2,赵建宁1,3,包倪荣1,3   

  1. 1解放军南京军区南京总医院骨科,江苏省南京市 210000;2东南大学医学院,江苏省南京市 210000;3南京大学医学院,江苏省南京市 210000
  • 收稿日期:2017-12-14 出版日期:2018-08-08 发布日期:2018-08-08
  • 通讯作者: 包倪荣,博士,副主任医师,南京军区南京总医院骨科,江苏省南京市 210000;南京大学医学院,江苏省南京市 210000
  • 作者简介:张永强,男,1992年生,安徽省芜湖市人,汉族,东南大学医学院在读硕士,主要从事关节置换、关节运动与损伤及生物材料方向研究。
  • 基金资助:

    国家自然科学基金面上项目(81572111);国家自然科学基金青年基金(81000814);江苏省科技项目(BK20161385)

Development of surface treatments for medical magnesium alloys

Zhang Yong-qiang1, 2, Zhao Jian-ning1, 3, Bao Ni-rong1, 3   

  1. 1Orthopedic Department, Nanjing General Hospital of Nanjing Military Region, Nanjing 210000, Jiangsu Province, China; 2School of Medicine, Southeast University, Nanjing 210000, Jiangsu Province, China; 3School of Medicine, Nanjing University, Nanjing 210000, Jiangsu Province, China
  • Received:2017-12-14 Online:2018-08-08 Published:2018-08-08
  • Contact: Bao Ni-rong, M.D., Associate chief physician, Orthopedic Department, Nanjing General Hospital of Nanjing Military Region, Nanjing 210000, Jiangsu Province, China; School of Medicine, Nanjing University, Nanjing 210000, Jiangsu Province, China
  • About author:Zhang Yong-qiang, Master candidate, Orthopedic Department, Nanjing General Hospital of Nanjing Military Region, Nanjing 210000, Jiangsu Province, China; School of Medicine, Southeast University, Nanjing 210000, Jiangsu Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81572111, 81000814; the Science and Technology Project of Jiangsu Province, No. BK20161385

摘要:

文章快速阅读:

 

文题释义:
镁合金:是以镁为基础加入其他元素组成的合金,密度小,强度高,弹性模量大,散热好,消震性好,耐有机物和碱的腐蚀性能好。
镁合金的优点:镁是人体中的必需元素,尤其是骨组织中含量更高,具有很好的生物相容性和生物活性,其力学性质与骨组织相近,密度与骨相近,成本较低。
 
 
背景:镁合金作为可降解金属具有良好的生物学性质以及力学性能,现已被广泛应用于骨科金属内置物的研究当中,但由于降解速率过快限制了其临床的应用。目前已有多种方法对镁合金的腐蚀速率进行控制,包括:合金化、表面处理、提高纯度及复合材料等方法,其中表面处理因其独特的优点而成为研究的热点。
目的:总结并讨论医用镁合金表面处理的方法以及其生物安全性及应用现状。
方法:由第一作者用计算机检索中国期刊全文数据库和PubMed数据库,检索时间为2007至2017年,检索词分别为“镁合金,腐蚀速率,表面处理,生物安全性”和“Magnesium Alloy,Corrosion Rate,Surface Treatment,Biosecurity”,语言分别设定为中文和英文。从医用镁合金的表面处理方式、降解速率改变以及生物安全性改变等方面进行总结,对医用镁合金的表面处理方法及其各自优缺点进行系统介绍。

结果与结论:共检索到464篇文章,按纳入和排除标准对文献进行筛选,共纳入40篇文章。结果表明镁合金的表面处理分为涂层覆盖、结构改性及其他等方面,且各种方法均可有效改善镁合金降解速率,但效果存在优劣,另外表面处理后金属的生物安全性、力学性能也会随之改变。目前对镁合金表面处理的研究上仍存在侧重,未来应将表面结构改性和表面涂层技术相互结合,创造符合临床应用的新型可降解内置物金属。

ORCID: 0000-0002-9763-3538(张永强)

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: 镁合金, 腐蚀速率, 表面处理, 生物安全性, 腐蚀机制, 微弧氧化, 高分子涂层, 结构改性, 碱热处理, 应用现状

Abstract:

BACKGROUND: Magnesium alloys with good biological properties and mechanical properties have already been used as biodegradable metals for a long time, but their clinical applications are still limited due to their excessive degradation rates. At present, there are many methods to control the corrosion rate of magnesium alloys, including alloying, surface treatments, improving the purity, use of composite materials. Among them, surface treatments have become a hot spot.

OBJECTIVE: To summarize and discuss the surface treatments for medical magnesium alloys and compare their biosafety and application status.
METHODS: The first author searched literature from CNKI (2007/2017) and PubMed (2007/2017). The key words were “magnesium alloy, corrosion rate, surface treatment, biosecurity” in Chinese and English, respectively. We reviewed the included articles in the aspects of surface treatments, variation of degradation rate and biosafety, and systematically introduced merits and demerits of surface treatments for medical magnesium alloys.

RESULTS AND CONCLUSION: Initially, 464 papers were retrieved, and only 40 eligible ones were included in result analysis. Surface treatments for medical magnesium alloys can be divided into two main categories: coating and structural modification, which can effectively decrease the degradation rate, and change the biosafety and mechanical properties of the magnesium alloys. Future studies on the surface treatments for magnesium alloys will focus on the combination use of surface modification and surface coating technology to create a new biodegradable metal implant in line with the clinical needs.

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: Tissue Engineering, Biocompatible Materials, Magnesium

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