Journal
APPLIED SURFACE SCIENCE
Volume 255, Issue 2, Pages 435-438Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2008.06.083
Keywords
Silver; Hydroxyapatite; Titania; Antibacterial coating; Titanium; Nanoparticle
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The composite which contains Ag(+) and nanosized hydroxyapatite with TiO(2) was deposited onto titanium by dipping method. The morphology, chemical components and structures of the thin film were characterized by XRD, scanning electronic microscope (SEM) and energy dispersive X-ray analysis (EDX). Staphylococcus aureus and Escherichia coli were utilized to test the antibacterial effect. XRD results demonstrated that the films have characteristic diffraction peaks of pure HA. EDX results showed that the deposited films consisted of Ca, P, Ti, O and Ag, all of which distribute uniformly. With regard to the antibacterial effect, 98% of S. aureus and more than 99% of E. coli were killed after 24 h incubation and pictures of SEM showed obviously fewer cells on the surface with coating. (c) 2008 Elsevier B. V. All rights reserved.
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