中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (21): 3430-3437.doi: 10.12307/2023.131

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

医用含铜钛合金抗菌性能的研究与进展

申  勇1,刘时璋2   

  1. 1西安医学院,陕西省西安市  710021;2陕西省人民医院骨科,陕西省西安市  710068
  • 收稿日期:2022-04-01 接受日期:2022-05-11 出版日期:2023-07-28 发布日期:2022-11-26
  • 通讯作者: 刘时璋,博士,硕士生导师,主任医师,教授,陕西省人民医院骨科,陕西省西安市 710068
  • 作者简介:申勇,男,1996年生,陕西省渭南市人,汉族,西安医学院在读硕士,主要从事医用钛合金抗菌性能及生物相容性研究。
  • 基金资助:
    陕西省重点研发计划项目(2018ZDXM-ZF-057),项目负责人:刘时璋

Research progress on antibacterial properties of medical copper-containing titanium alloys

Shen Yong1, Liu Shizhang2   

  1. 1Xi’an Medical College, Xi’an 710021, Shaanxi Province, China; 2Department of Orthopedics, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
  • Received:2022-04-01 Accepted:2022-05-11 Online:2023-07-28 Published:2022-11-26
  • Contact: Liu Shizhang, MD, Master’s supervisor, Chief physician, Professor, Department of Orthopedics, Shaanxi Provincial People’s Hospital, Xi’an 710068, Shaanxi Province, China
  • About author:Shen Yong, Master candidate, Xi’an Medical College, Xi’an 710021, Shaanxi Province, China
  • Supported by:
    the Key Research & Development Project of Shaanxi Province, No. 2018ZDXM-ZF-057 (to LSZ)

摘要:


文题释义:

医用钛合金:用于制造植入人体内的医疗器件、假体、辅助治疗设备的钛合金,生物力学性能接近人骨,还具备耐疲劳、耐腐蚀及良好的生物相容性等优势。
细菌生物膜:细菌黏附于表面分泌多糖基质、纤维蛋白、脂质蛋白等,将其自身包绕其中而形成的大量细菌聚集膜样物,是为适应自然环境有利生存的一种生命现象。

背景:作为骨科内植物的主要材料,钛及其合金在包括骨科在内的多个医学领域得到广泛的应用,内植物相关性感染也随之增多,采取不同的制备方法将优异且机制清楚的抗菌金属铜加入其中,在不影响生物力学性能的同时可使其具备一定的抗菌能力。
目的:综述医用含铜钛合金的抗菌性能研究进展及发展趋势。
方法:应用计算机检索PubMed、Web of Science数据库中2003年1月至2022年3月的相关文献,检索词为“Titanium alloy,Copper,Antibacterial,Surface modification,Coating”,根据纳入排除标准对选定的76篇文献进行分析讨论。
结果与结论:①加入铜的钛合金在体内外抗菌实验中均显示出良好的抗菌性能,并随着铜含量的提升其抗菌性能更加明显。②但目前仍存在较多问题有待解决:探索、优化加入铜的含量、方式及采取合适的制备工艺使合金的抗菌性能、生物相容性、机械性能达到平衡需要进一步的实验;表面改性对合金表面的微损伤是否会对合金造成不利影响;铜离子释放速率的控制以及如何避免早期突然大量释放铜离子的“突释现象”。
https://orcid.org/0000-0003-0526-9589(刘时璋)
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: 钛合金, 铜, 内植物, 细菌生物膜, 生物相容性, 表面改性, 涂层

Abstract: BACKGROUND: As the main materials of orthopedic implants, titanium and its alloys, widely used in many medical fields including orthopedics, have also increased with the wide application of implant-related infections. Different preparation methods are used to add excellent and clear antibacterial metal copper into them, which does not affect the biomechanical properties. Simultaneously, it has a certain antibacterial ability.
OBJECTIVE: To review the research progress and development trend of antibacterial properties of medical titanium alloys with copper.
METHODS: Relevant articles published from January 2003 to March 2022 were searched by computer on PubMed and Web of Science databases using the search terms “titanium alloy, copper, antibacterial, surface modification, coating”. Totally 76 articles selected according to the inclusion and exclusion criteria were analyzed and discussed.
RESULTS AND CONCLUSION: (1) In vitro and in vivo antibacterial experiments of titanium alloys with copper showed good antibacterial properties, and with the increase of copper content, the antibacterial properties became more obvious. (2) There are still many problems to be solved: exploring and optimizing the content and methods of adding copper. Appropriate preparation process to balance the antibacterial properties, biocompatibility and mechanical properties of the alloy requires further experiments; whether the micro-damage on the surface of the alloy by the surface modification will adversely affect the alloy; the control of the release rate of copper ions and how to avoid the sudden release of copper ions in large quantities in the early stage.

Key words: titanium alloy, copper, internal implant, bacterial biofilm, biocompatibility, surface modification, coatings

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