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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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Seyfi, Javad
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2020Nanoperlite effect on thermal, rheological, surface and cellular properties of poly lactic acid/nanoperlite nanocomposites for multipurpose applicationscitations
- 2020Developing antibacterial superhydrophobic coatings based on polydimethylsiloxane/silver phosphate nanocompositescitations
- 2018Preparation and Characterization of Composite Blends Based on Polylactic Acid/Polycaprolactone and Silkcitations
- 2010Investigating the role of transreactions on degradation behavior of phenoxy/poly(trimethylene terephthalate)/clay nanocomposites using thermal analysis techniquescitations
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article
Developing antibacterial superhydrophobic coatings based on polydimethylsiloxane/silver phosphate nanocomposites
Abstract
<p>Nanocomposite coatings based on polydimethylsiloxane (PDMS) and silver phosphate (Ag<sub>3</sub>PO<sub>4</sub>) nanoparticles were developed to achieve superhydrophobicity, antibacterial behavior and low protein adsorption. Since the as-synthesized nanoparticles were hydrophilic, octadecanethiol was added into the coatings’ solutions. Wettability results demonstrated that the higher the nanoparticle content, the higher the water contact angle (WCA). The highest WCA was observed for 7 wt% inclusion of nanoparticles (152°). Morphological analysis revealed the surface localization of nanoparticles and a packed structure in case of 7 wt% nanoparticle inclusion. From the roughness results, the ratio of texture surface area to cross-sectional area was found to be notably increased at higher nanoparticle contents. The presence of Ag<sub>3</sub>PO<sub>4</sub> nanoparticles at the coatings’ top layer was confirmed by X-ray photoelectron spectroscopy. Antibacterial activity of the coatings significantly enhanced upon increasing the nanoparticle content. As a result of a true superhydrophobic (roll-off) behavior for 7 wt% nanoparticle inclusion, the protein adsorption was highly reduced (∼83 %) due to the enclosed air layer within the surface cavities leading to a lowered contact area of proteins with the coating's surface. The combination of superhydrophobicity, antibacterial behavior and low protein adsorption leads to a biocompatible coating which could have many biomedical applications needing further investigations.</p>