Antimicrobial effects of Ag/TiO2 compound coatings and ZnO films on titanium based surface

W. C. Liao, C. H. Lai, Y. Y. Chang, H. L. Huang, J. T. Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Nano Ag/TiO2 compound coatings and zinc oxide films were used to enhance the capacity of antibacterial ability and maintain the functions of gingival fibroblast cells for the titanium (Ti) based dental implant. Various Ag/TiO2 compound coatings were deposited on the Ti plate samples by a sputtering process with different power for creating the coatings with different ratios of Ag/TiO2. Zinc oxide films with different thicknesses were electroplated. The hydrophilicity of the samples was examined by measuring the contact angle. Streptococcus mutans were cultured on nanoparticle coated samples and determined the antibacterial effects using a standard Syto9 fluorescent staining method. The outcomes of the zinc oxide samples' contact angle did not show an identical tendency. While more ZnO were coated on the Ti plate, the antibacterial effect was more efficient. As for the nano Ag/TiO2 samples, the more watt used to deposited silver on the plate, representing more Ag/TiO2 quantity coated on the samples, the greater the contact angle were, and also stood for more hydrophobic characteristic. Streptococcus mutans formed the least bacterial numbers on the 50W nano Ag/TiO2 deposited plates, which contained the greatest amount of Ag among all the nano Ag/TiO2 samples.

Original languageEnglish
Title of host publicationWorld Congress on Medical Physics and Biomedical Engineering
Subtitle of host publicationBiomedical Engineering for Audiology, Ophthalmology, Emergency and Dental Medicine
PublisherSpringer Verlag
Pages29-32
Number of pages4
Edition11
ISBN (Print)9783642038907
DOIs
StatePublished - 2009
Externally publishedYes
EventWorld Congress on Medical Physics and Biomedical Engineering: Biomedical Engineering for Audiology, Ophthalmology, Emergency and Dental Medicine - Munich, Germany
Duration: 07 09 200912 09 2009

Publication series

NameIFMBE Proceedings
Number11
Volume25
ISSN (Print)1680-0737

Conference

ConferenceWorld Congress on Medical Physics and Biomedical Engineering: Biomedical Engineering for Audiology, Ophthalmology, Emergency and Dental Medicine
Country/TerritoryGermany
CityMunich
Period07/09/0912/09/09

Keywords

  • Antibacterial ability
  • Hydrophilicity
  • Zinc oxide film

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