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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gomes, L.
in Cooperation with on an Cooperation-Score of 37%
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Publications (4/4 displayed)
- 2020Magnetron co-sputtered TiO2/SiO2/Ag nanocomposite thin coatings inhibiting bacterial adhesion and biofilm formationcitations
- 2014The spectroscopy of mid-infrared (2.9 μm) fluorescence and energy transfer in Dy3+-doped tellurite glassescitations
- 2012Energy transfer and energy level decay processes in Tm3+-doped tellurite glasscitations
- 2011Energy level decay processes in Ho3+-doped tellurite glass relevant to the 3-μm transitioncitations
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article
Magnetron co-sputtered TiO2/SiO2/Ag nanocomposite thin coatings inhibiting bacterial adhesion and biofilm formation
Abstract
Aim of this study is the development of new functional coatings for medical devices, using magnetron co-sputtering to deposit triple TiO2/SiO2/Ag nanocomposite thin films with expected antimicrobial activity. Some surface characteristics (elemental composition, hydrophilic/hydrophobic balance, surface energy and topography) were estimated to look for correlation with bacterial cells growth and biofilm formation on TiO2/SiO2/Ag coated samples. Strong inhibitory effect toward Escherichia coli growth was found: the number of viable bacterial cells approaches to zero at the first 30 min -1 h, depending on the Ag content. Biofilm formation in urine flow at 48 h is reduced down to 92% compared to a control glass surface. Direct contact and eluted silver mediated killing were experimentally demonstrated as mechanisms of antibacterial action of the TiO2/SiO2/Ag coatings. These coatings are promising candidate for antimicrobial protection of urinary tract devices for at least 48 h, suggesting benefits over longer time.