Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (25): 3732-3737.doi: 10.3969/j.issn.2095-4344.2016.25.013

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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

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

CLC Number: