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Titre du document / Document title

Doped Sol-gel TiO2 Films for Biological Applications

Auteur(s) / Author(s)

GARTNER M. ; TRAPALIS C. ; TODOROVA N. ; GIANNAKOPOULOU T. ; DOBRESCU G. ; ANASTASESCU M. ; OSICEANU P. ; GHITA A. ; ENACHE M. ; DUMITRU L. ; STOICA T. ; ZAHARESCU M. ; BAE J. Y. ; SUH S.-H. ;

Résumé / Abstract

Mono and multilayer TiO2(Fe, PEG600) films were deposited by the dip-coating on SiO2/glass substrate using sol-gel method. In an attempt to improve the antibacterial properties of doped TiO2 films, the influence of the iron oxides and polyethilenglycol (PEG600) on the morphological, optical, surface chemical composition and biological properties of nanostructured layers was studied. Complementary measurements were performed including Spectroscopic Ellipsometry (SE), Scanning Electron Microscopy (SEM) coupled with the fractal analysis, X-Ray Photoelectron Spectroscopy (XPS) and antibacterial tests. It was found that different concentrations of Fe and PEG600 added to coating solution strongly influence the porosity and morphology at nanometric scale related to fractal behaviour and the elemental and chemical states of the surfaces as well. The thermal treatment under oxidative atmosphere leads to films densification and oxides phase stabilization. The antibacterial activity of coatings against Escherichia Coli bacteria was examined by specific antibacterial tests.

Revue / Journal Title

Bulletin of the Korean Chemical Society    ISSN  0253-2964 

Source / Source

2008, vol. 29, no5, pp. 1038-1042 [5 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Korean Chemical Society, Seoul, COREE, REPUBLIQUE DE  (1980) (Revue)

Localisation / Location

INIST-CNRS, Cote INIST : 26120, 35400018571282.0270

Nº notice refdoc (ud4) : 20765833



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