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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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Cherian Lukose, Cecil
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Innovative Tin and hard carbon architecture for enhanced stability in lithium-ion battery anodescitations
- 2023Biocompatible Ti3Au–Ag/Cu thin film coatings with enhanced mechanical and antimicrobial functionalitycitations
- 2022Enhanced mechanical and biocompatibility performance of Ti(1- x )Ag(x) coatings through intermetallic phase modificationcitations
- 2022Thermal activation of Ti(1-x)Au(x) thin films with enhanced hardness and biocompatibility citations
- 2022Mn3Ag(1-x)Cu(x)N antiperovskite thin films with ultra-low temperature coefficient of resistancecitations
- 2022Thermal activation of Ti(1-x)Au(x) thin films with enhanced hardness and biocompatibilitycitations
- 2021Mechanical performance of biocompatible Ti-Au thin films grown on glass and Ti6Al4V substrates
- 2021Effect of noble metal (M=Ag, Au) doping concentration on mechanical and biomedical properties of Ti-M matrix thin films co-deposited by magnetron sputtering
- 2018Tuning the antimicrobial behaviour of Cu85Zr15 thin films in “wet” and “dry” conditions through structural modificationscitations
Places of action
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article
Tuning the antimicrobial behaviour of Cu85Zr15 thin films in “wet” and “dry” conditions through structural modifications
Abstract
The antimicrobial behaviour of Cu85Zr15 at. % thin films prepared by magnetron sputtering was studied in both wet and dry conditions. Small variations in key deposition processing parameters (pressure and substrate temperature) enabled the growth of thin films with similar nanostructures but different degrees of compactness, according to the Thornton’s structural zone model. This model has proven its effectiveness in providing sensitive structural information to explain significant differences in antimicrobial behaviour of the CuZr thin films, even when processing conditions lie within the same structural zone. The antimicrobial behaviour has been studied for E. coli and S. aureus for up to 4 hours of “dry” contact. Structures of lower compactness, grown at higher deposition pressure, are shown to provide higher antimicrobial activity for “dry”conditions than for “wet” conditions. For thin films of CuZr deposited at 0.5 Pa, the reduction percentage of bacteria is 99.47 %, which is much higher than the results of 70-80 % obtained for the films deposited at 0.1 and 0.3 Pa. Microscopy studies indicate that for 4 hours of contact time, bacteria exhibit inner damage and even lysis, however, no morphological changes are detected because of the short timeframes used.