| People | Locations | Statistics |
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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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Coradin, Thibaud
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2022In Situ Synthesis of a Mesoporous MIL-100(Fe) Bacteria Exoskeletoncitations
- 2019Bi-layered silane-TiO2/collagen coating to control biodegradation and biointegration of Mg alloyscitations
- 2018A flexible polymer–nanoparticle hybrid material containing triazole-based Fe(II) with spin crossover properties for magneto-optical applicationscitations
- 2018A flexible polymer–nanoparticle hybrid material containing triazole-based Fe( ii ) with spin crossover properties for magneto-optical applicationscitations
- 2018Collagen-silica nanocomposites as dermal dressings preventing infection in vivo.citations
- 2018Hybrid coatings with collagen and chitosan for improved bioactivity of Mg alloyscitations
- 2017The physics and chemistry of silica-in-silicates nanocomposite hydrogels and their phycocompatibilitycitations
- 2016Silane/TiO 2 coating to control the corrosion rate of magnesium alloys in simulated body fluidcitations
- 2015Local and Sustained Gene Delivery in Silica-Collagen Nanocompositescitations
- 2015Understanding and Tuning Bioinorganic Interfaces for the Design of Bionanocompositescitations
- 2015Evaluation of Hydrophilized Graphite Felt for Electrochemical Heavy Metals Detection (Pb2+, Hg2+)citations
- 2014Self-Assembly in Biosilicification and Biotemplated Silica Materialscitations
- 2014Design of Magnetic Gelatine/Silica Nanocomposites by Nanoemulsification: Encapsulation versus in Situ Growth of Iron Oxide Colloidscitations
- 2013Reversible bioresponsive aptamer-based nanocomposites: ATP binding and removal from DNA-grafted silica nanoparticlescitations
- 2011Synthesis and Characterization of Mesoporous Hybrid Silica-Polyacrylamide Aerogels and Xerogelscitations
- 2011Ultrasound-Assisted Synthesis of Mesoporous Zirconia-Hydroxyapatite Nanocomposites and Their Dual Surface Affinity for Cr 3+ /Cr 2 O 7 2– Ionscitations
- 2007Stability of Mesoporous Oxide and Mixed Metal Oxide Materials under Biologically Relevant Conditionscitations
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article
Ultrasound-Assisted Synthesis of Mesoporous Zirconia-Hydroxyapatite Nanocomposites and Their Dual Surface Affinity for Cr 3+ /Cr 2 O 7 2– Ions
Abstract
Zirconia-hydroxyapatite nanocomposites were prepared by solgel deposition of zirconium oxide from a zirconium alkoxide in the presence of apatite colloidal suspension under ultrasonication. The material porosity evolves from mainly microporous zirconia to mesoporous hydroxyapatite, with decreasing surface area and increasing pore volume. XRD studies indicate that the apatite phase is well-preserved within the composite materials. The homogeneous dispersion of apatite colloids within the zirconia network was supported by TEM observations and nitrogen sorption measurements. 31P solid-state NMR studies suggest that partial dissolution of apatite may have occurred during the preparation, leading to the adsorption of phosphate species on zirconia particles. This is confirmed by XRD studies of nanocomposites after thermal treatment that demonstrate the preferred formation of tetragonal over monoclinic ZrO2 in the presence of hydroxyapatite. In order to investigate the surface properties of these novel materials, the adsorption of Pb2+, Cr3+, and Cr2O7 2‑ was evaluated. Metal cations were preferentially adsorbed on apatite-rich composites, whereas Cr2O7 2‑ shows a good affinity for the zirconia-rich phases. Zirconiaapatite materials showed the most promising performance in terms of recyclability. These nanocomposites that combine microporosity, mesoporosity and dual sorption properties for these species appear as interesting materials for metal ion remediation and may also find applications as biomaterials.