| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 11007093 | Surface and Coatings Technology | 2018 | 23 Pages |
Abstract
A composite coating containing silver, fluoride and hydroxyapatite (Ag-FHA) was developed on titanium substrate by sol-gel method. Triethylphosphite, hydrated calcium nitrate, ammonium fluoride and silver nitrate were used respectively, as P, Ca, F and Ag precursors with a Ca:P ratio 1.67 and concentration of silver was 0.3â¯wt%. Coatings were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and atomic absorption spectrometry (AAS). Potentiodynamic polarization measurements in simulated body fluid proved corrosion protection caused by both Ag-FHA coatings. Antibacterial activity of coatings against Escherichia coli indicated a significant enhancement in the antibacterial property of Ag-FHA nanocomposite with increasing the amount of fluoride. These coatings can prevent the bacterial infections of implants.
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Authors
Keynoosh Batebi, Bijan Abbasi Khazaei, Abdollah Afshar,