Bactericidal and hydrophilic plasma deposited thin TiO2 films on glass substrate

• Autorzy: Sobczyk-Guzenda A. , Szymanowski H. , Gazicki-Lipman M. , Kowalski J. , Jakubowski W. , Halamus T.
• Języki publikacji: EN

Abstrakty

EN

In recent years, titanium dioxide has attracted a great deal of attention as a material for photocatalytic applications. These applications include antibacterial effect as well as photocatalytic air and water purification. Another property of TiO2 concerns a substantial increase of its surface hydrophilicity upon irradiation. The aim of this work is to investigate thin TiO2films obtained by RF PECVD technique with respect to hydrophilic and long-term bactericidal activity. Structural studies, carried out by Raman spectroscopy show that all the investigated coatings are amorphous. The films exhibit agglomerates, with their amount depending on energetic conditions of deposition. Adhesion measured by a scratch test shows that films deposited at higher RF power adhere better than those synthesized at lower power values. UV irradiation causes death of nearly 100% of Escherichia coli population on TiO2films. The irradiated films are still active for about 30 min after the end of UV exposure. A substantial decrease of water contact angle is also observed upon the irradiation of the films with UV light.

Słowa kluczowe

EN

TiO2 thin films; RF PECVD method; bactericidal activity; hydrophilic effect

• Wydawca: Polish Society for Biomaterials in Cracow
• Czasopismo: Engineering of Biomaterials
• Rocznik: 2009
• Tom: Vol. 12, no. 85
• Strony: 8--12
• Opis fizyczny: Bibliogr. 29 poz., tab., wykr., zdj.

Twórcy

autor

Sobczyk-Guzenda A.

• Institute of Materials Science and Engineering, Technical University of Lodz, 1 Stefanowskiego Str., 90-924 Łódź, Poland

autor

Szymanowski H.

• Institute of Materials Science and Engineering, Technical University of Lodz, 1 Stefanowskiego Str., 90-924 Łódź, Poland

autor

Gazicki-Lipman M.

• Institute of Materials Science and Engineering, Technical University of Lodz, 1 Stefanowskiego Str., 90-924 Łódź, Poland

autor

Kowalski J.

• Institute of Materials Science and Engineering, Technical University of Lodz, 1 Stefanowskiego Str., 90-924 Łódź, Poland

autor

Jakubowski W.

• Institute of Materials Science and Engineering, Technical University of Lodz, 1 Stefanowskiego Str., 90-924 Łódź, Poland

autor

Halamus T.

• Chair of Molecular Physics, Technical University of Lodz, 116 Żeromskiego str., 90-924 Łódź, Poland

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