Journal
APPLIED SURFACE SCIENCE
Volume 292, Issue -, Pages 944-947Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.12.083
Keywords
Micro-arc oxidation; Titanium; Cu nanoparticles; Antibacterial activities
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Funding
- National Natural Science Foundation of China [51171125]
- Qualified Personnel Foundation of Taiyuan University of Technology (QPFT) [tyutrc-2011257a]
- Shanxi Province Science and Technology Key Project of China [20110321051, 20120321017-03]
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Infection associated with titanium implants remains the most common serious complication after surgery. In this work, Cu-doped antibacterial TiO2 coating was synthesized by micro-arc oxidation of titanium in an electrolyte bearing Cu nanoparticles. Surface morphology and structure of the coating were characterized with scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results indicated that Cu nanoparticles were not only distributed on the surface and inside the pores but also embedded in the coating. Cu mainly exists in the Cu2+ state in the TiO2 coating. The Cu-doped coating exhibited excellent antibacterial activities against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). (C) 2013 Elsevier B.V. All rights reserved.
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