Document Detail


Surface characterization of Ca-P/Ag/TiO2 nanotube composite layers on Ti intended for biomedical applications.
MedLine Citation:
PMID:  22528961     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The new generation of medical implants made by titanium is functionalized with different coatings to improve their bioactivity and reduce a risk of infection. This article describes how these goals can be achieved via deposition of silver nanoparticles and calcium phosphate coating. TiO(2) nanotubes were grown on a Ti substrate via electrochemical oxidation at constant voltage in a mixture of glycerol, deionized water, and NH(4) F. Silver particles with a size of 2-50 nm were deposited on the surface using the sputter deposition technique. Calcium phosphate coatings were grown on the nanotubular titania by simple immersion in Hanks' solution. It has been found that the silver nanoparticles are distributed homogeneously in the coating, which is promising for maintaining a steady antibacterial effect. The results show also that the Ag-incorporated TiO(2) nanotubes significantly stimulate apatite deposition from Hanks' solution. The highly ordered Ag-incorporated TiO(2) nanotube arrays with apatite coating may offer unique surface features for biomedical implants, ensuring both biocompatibility and antibacterial properties.
Authors:
Agata Roguska; Marcin Pisarek; Mariusz Andrzejczuk; Malgorzata Lewandowska; Krzysztof J Kurzydlowski; Maria Janik-Czachor
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-04-24
Journal Detail:
Title:  Journal of biomedical materials research. Part A     Volume:  100     ISSN:  1552-4965     ISO Abbreviation:  J Biomed Mater Res A     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-06-21     Completed Date:  2012-10-17     Revised Date:  2013-04-05    
Medline Journal Info:
Nlm Unique ID:  101234237     Medline TA:  J Biomed Mater Res A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1954-62     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Affiliation:
Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland. aroguska@ichf.edu.pl
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MeSH Terms
Descriptor/Qualifier:
Biocompatible Materials / chemistry*
Calcium Phosphates / chemistry*
Coated Materials, Biocompatible / chemistry
Electrodes
Nanotubes / chemistry*,  ultrastructure
Photoelectron Spectroscopy
Silver / chemistry*
Spectroscopy, Fourier Transform Infrared
Surface Properties
Thermodynamics
Titanium / chemistry*
X-Ray Diffraction
Chemical
Reg. No./Substance:
0/Biocompatible Materials; 0/Calcium Phosphates; 0/Coated Materials, Biocompatible; 15FIX9V2JP/titanium dioxide; 7440-22-4/Silver; 7440-32-6/Titanium; 97Z1WI3NDX/calcium phosphate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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