Sol-gel preparation and properties of Ag-containing bioactive glass films on titanium

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

8 Scopus Citations
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Author(s)

  • Tao Fu
  • Zafer Alajmi
  • Lijun Wang
  • Shuiyun Yang
  • Man Zhang

Detail(s)

Original languageEnglish
Pages (from-to)1117-1124
Journal / PublicationInternational Journal of Applied Ceramic Technology
Volume14
Issue number6
Online published22 May 2017
Publication statusPublished - Nov 2017

Abstract

Ag-containing bioactive glass films (Ag/Ca atomic ratios of 0, 5% and 10%) were sol-gel prepared for bioactive and antibacterial modification of titanium. The gel powders calcined at 610°C are mainly amorphous confirmed by x-ray diffraction, but small diffraction peaks of Ca3SiO5 and silver are detected. The film surface is porous with the pore size of ~200 nm. Silver-rich sub-micro particles with sizes of 100-480 nm are present at the surface of Ag-glass films. CaP phase, metallic silver and silica are detected by x-ray photoelectron spectroscopy. The mean apparent bonding strength of the films is as high as 21±1 MPa measured by the pull-off test. The potentiodynamic polarization test shows that the coated samples have better corrosion resistance than the polished sample. The Ag-glass coatings and their wafer samples exhibit antibacterial activity against S. aureus. The coated samples are covered by apatite layer after soaked in the simulated body fluid for 2 weeks, demonstrating their bioactivity.

Research Area(s)

  • Ag, antibacterial, bioactive glass, corrosion, film, sol-gel

Citation Format(s)

Sol-gel preparation and properties of Ag-containing bioactive glass films on titanium. / Fu, Tao; Alajmi, Zafer; Shen, Yaogen; Wang, Lijun; Yang, Shuiyun; Zhang, Man.

In: International Journal of Applied Ceramic Technology, Vol. 14, No. 6, 11.2017, p. 1117-1124.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review