中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (25): 3732-3737.doi: 10.3969/j.issn.2095-4344.2016.25.013

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

万古霉素/羟基磷灰石/二氧化钛纳米管的抗菌性能

张杭州1,田 昂2,梁庆威1,白希壮3,薛向欣2   

  1. 1中国医科大学附属第一医院运动医学科/关节外科,辽宁省沈阳市 110001;2东北大学材料与冶金学院,辽宁省沈阳市 110016;3中国医科大学附属人民医院运动医学科/关节外科,辽宁省沈阳市  110006
  • 收稿日期:2016-04-10 出版日期:2016-06-17 发布日期:2016-06-17
  • 作者简介:张杭州,男,1984年生,山东省淄博市人,汉族,博士,主治医师,主要从事运动关节损伤及骨科新型抗菌内植物的研究。
  • 基金资助:

    国家青年基金(81501857)Ti-Ag 纳米管/HA复合涂层的抗菌性能及生物相容性的基础研究;辽宁省省直医院改革重点临床科室诊疗能力建设项目(LNCCC-A03-2014)

Antibacterial property of vancomycin/hydroxyapatite/titanium dioxide nanotubes

Zhang Hang-zhou1, Tian Ang2, Liang Qing-wei1, Bai Xi-zhuang3, Xue Xiang-xin2   

  1. 1Department of Sports Medicine & Joint Surgery, First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China; 2School of Material and Metallurgy of Northeastern University, Shenyang 110016, Liaoning Province, China; 3Department of Sports Medicine & Joint Surgery, Affiliated People’s Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
  • Received:2016-04-10 Online:2016-06-17 Published:2016-06-17
  • About author:Zhang Hang-zhou, M.D., Attending physician, Department of Sports Medicine & Joint Surgery, First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
  • Supported by:

    the National Youth Foundation of China, No. 81501857; the Reformed Key Clinical Diagnosis and Treatment Capacity Construction Project of Provincial Hospitals in Liaoning, No. LNCCC-A03-2014

摘要:

 文章快速阅读:

 

文题释义:
万古霉素/羟基磷灰石/二氧化钛纳米管:
前期实验将万古霉素单纯沉积于二氧化钛纳米管中,万古霉素的药物释放时间小于6 h,释放特性为早期爆发性释放。实验中通过将羟基磷灰石及万古霉素共沉积于二氧化钛纳米管上,通过纳米羟基磷灰石涂层显著延缓了万古霉素的药物释放时间。
载药人工骨:是由药物与载体材料相结合而构成的具有特定作用的组织工程人工骨,通常填充于各种原因所致的骨组织缺损,能在患处发挥修复骨缺损和局部释放药物治疗作用。

摘要
背景:
研究表明,钛金属纳米管涂层不仅能够促进材料本身的生物活性,同时还可作为药物载体负载抗生素及生长因子等。
目的:检测万古霉素/羟基磷灰石/二氧化钛纳米管的体内外抗菌性能。
方法:检测万古霉素/羟基磷灰石/二氧化钛纳米管、万古霉素/二氧化钛纳米管的体外释药性能。将1010 L-1的金黄色葡萄球菌稀释液分别铺于商业钛金属、二氧化钛纳米管及万古霉素/羟基磷灰石/二氧化钛纳米管上,24 h后,扫描电镜观察细菌生长情况,聚焦扫描电镜观察细菌活性。
结果与结论:①扫描电镜观察:金黄色葡萄球菌在万古霉素/羟基磷灰石/二氧化钛纳米管上的数量最少且细菌形态破坏;②聚焦扫描电镜观察:万古霉素/羟基磷灰石/二氧化钛纳米管上的细菌数量及活菌数量最少,商业钛金属上的活菌数量最多;③体外释药性能:万古霉素从羟基磷灰石/二氧化钛纳米管上的释放时间长达18 d,从二氧化钛纳米管上的时间仅仅约为4 h;④结果表明:万古霉素/羟基磷灰石/二氧化钛纳米管具有良好的抗菌性能及缓释性能。

ORCID: 0000-0001-8233-5362(张杭州)

关键词: 生物材料, 纳米材料, 羟基磷灰石, 二氧化钛纳米管, 万古霉素, 抗菌性能, 金黄色葡萄球菌, 国家自然科学基金

Abstract:

BACKGROUND: Present studies have proved that titanium coating nanotubes cannot only promote the biological activity of the material itself, but also be used as a drug carrier loading antibiotics and growth factors.

 
OBJECTIVE: To investigate the antibacterial properties of vancomycin/hydroxyapatite/titanium dioxide nanotubes in vitro and in vivo.
METHODS: The releasing property in vitro of vancomycin/hydroxyapatite/titanium dioxide nanotubes and vancomycin/titanium dioxide nanotubes were detected. And 1010/L Staphylococcus aureus dilution was put onto the commercial titanium, titanium dioxide nanotube and vancomycin/hydroxyapatite/titanium dioxide nanotube, respectively. Twenty-four hours later, the bacterial growth and activity was observed by scanning electron microscope and confocus scanning electron microscope, respectively.

RESULTS AND CONCLUSION: Scanning electron microscope showed: the number of Staphylococcus aureus was the least on the vancomycin/hydroxyapatite/titanium dioxide nanotube, and the bacterial morphology was destroyed. Confocus scanning electron microscope observed: the number of bacteria and viable bacteria was the least on the vancomycin/hydroxyapatite/titanium dioxide nanotube, and the most on the commercial titanium. Besides, the releasing time of vancomycin from the hydroxyapatite/ titaniumdioxide nanotube was up to 18 days, but the releasing time of vancomycin was only 4 hours from the titanium dioxide nanotube. In conclusion, the vancomycin/hydroxyapatite/titanium dioxide nanotube has good antibacterial property and slow-releasing performance.

 

 

 

Key words: Hydroxyapatites, Titanium, Vancomycin, Tissue Engineering

中图分类号: