Titania–silver and alumina–silver composite nanoparticles: Novel, versatile synthesis, reaction mechanism and potential antimicrobial application
| Autor: | Fathima Laffir, Gordon Armstrong, Tanushree Bala, Roibeard F. Thornton |
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| Rok vydání: | 2011 |
| Předmět: |
Silver
Materials science Composite number Oxide Mineralogy Nanoparticle Silver nanoparticle Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry Aluminum Oxide Escherichia coli Staphylococcus epidermidis Humans Escherichia coli Infections Titanium Nanocomposite Staphylococcal Infections Anti-Bacterial Agents Surfaces Coatings and Films Electronic Optical and Magnetic Materials Titanium oxide Thermogravimetry chemistry Chemical engineering Aluminium oxide Nanoparticles |
| Zdroj: | Journal of Colloid and Interface Science. 356:395-403 |
| ISSN: | 0021-9797 |
| Popis: | Titania-silver (TiO(2)-Ag) and alumina-silver (Al(2)O(3)-Ag) composite nanoparticles were synthesised by a simple, reproducible, wet chemical method under ambient conditions. The surface of the oxides was modified with oleic acid, which acted as an intermediate between the oxide surface and the silver nanoparticles. The resulting composite nanoparticles were thoroughly characterised by XRD, TEM, XPS, FTIR and TGA to elucidate the mode of assembly of Ag nanoparticles on the oxide surfaces. Epoxy nanocomposites were formulated with TiO(2)-Ag and Al(2)O(3)-Ag to examine potential applications for the composite nanoparticles. Preliminary results from disc diffusion assays against Escherichia coli DH5α and Staphylococcus epidermidis NCIMB 12721 suggest that these TiO(2)-Ag and Al(2)O(3)-Ag composite nanoparticles have potential as antimicrobial materials. |
| Databáze: | OpenAIRE |
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