| 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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Tuna, Floriana
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (39/39 displayed)
- 2024Hierarchical porous metal-organic polyhedra for efficient oxidative cleavage of β-O-4 bonds in lignin model compound
- 2024Metal-carbon bonding in early lanthanide substituted cyclopentadienyl complexes probed by pulsed EPR spectroscopycitations
- 2023A room-temperature-stable electride and its reactivitycitations
- 2023Non-classical early lanthanide(II) tris(di- tert -butylcyclopentadienyl) complexes
- 2023A room-temperature-stable electride and its reactivity: Reductive benzene/pyridine couplings and solvent-free Birch reductions
- 2023A room-temperature-stable electride and its reactivity : Reductive benzene/pyridine couplings and solvent-free Birch reductionscitations
- 2022A New Nitronyl‐Nitroxide Ligand for Designing Binuclear Ln III Complexes: Syntheses, Crystal Structures, Magnetic and EPR Studiescitations
- 2021High Ammonia Adsorption in MFM-300 Materials:Dynamics and Charge Transfer in Host–Guest Bindingcitations
- 2021Testing the Efficacy of the Synthesis of Iron Antimony Sulfide powders from Single Source Precursorscitations
- 2021Catalytic decomposition of NO 2 over a copper-decorated metal–organic framework by non-thermal plasmacitations
- 2021Structural investigations of α-MnS nanocrystals and thin films synthesised from manganese(II) xanthates by hot injection, solvent-less thermolysis and doctor blade routes.citations
- 2021High Ammonia Adsorption in MFM-300 Materialscitations
- 2021Testing the Efficacy of the Synthesis of Iron Antimony Sulfide Powders from Single Source Precursorscitations
- 2021Catalytic decomposition of NO2 over a copper-decorated metal–organic framework by non-thermal plasmacitations
- 2021Catalytic decomposition of NO2 over a copper-decorated metal–organic framework by non-thermal plasmacitations
- 2021Atomically-dispersed copper sites in a metal-organic framework for reduction of nitrogen dioxide
- 2020Frequency- and time-resolved photocurrents in vacuum-deposited stabilised a-Se films: the role of valence alternation defectscitations
- 2020Heterometallic 3d-4f complexes as air-stable molecular pre-cursors in low temperature syntheses of stoichiometric rare-earth orthoferrite powderscitations
- 2020Quantitative Electro-Reduction of CO2 to Liquid Fuel over Electro-Synthesized Metal-Organic Frameworkscitations
- 2020Quantitative Electro-Reduction of CO2 to Liquid Fuel over Electro-Synthesized Metal-Organic Frameworkscitations
- 2019Iodine adsorption in a redox-active metal-organic frameworkcitations
- 2019Iodine adsorption in a redox-active metal-organic framework:Electrical conductivity induced by host-guest charge-transfercitations
- 2018The synthesis of a monodisperse quaternary ferrite (FeCoCrO4) from the hot injection thermolysis of the single source precursor [CrCoFeO(O2C: TBu)6(HO2CtBu)3]citations
- 2018The synthesis of a monodisperse quaternary ferrite (FeCoCrO 4 ) from the hot injection thermolysis of the single source precursor [CrCoFeO(O 2 C : T Bu) 6 (HO 2 C t Bu) 3 ]citations
- 2016Emergence of comparable covalency in isostructural cerium(IV)- and uranium(IV)-carbon multiple bondscitations
- 2015Copper Lanthanide Phosphonate Cages: Highly Symmetric {Cu(3)Ln(9)P(6)} and {Cu(6)Ln(6)P(6)} Clusters with C-3v and D-3h Symmetrycitations
- 2014A one-pot synthesis of monodispersed iron cobalt oxide and iron manganese oxide nanoparticles from bimetallic pivalate clusterscitations
- 2014Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic propertiescitations
- 2014Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic propertiescitations
- 2013Synthesis of 2,6-Di(pyrazol-1-yl)pyrazine derivatives and the spin-state behavior of their iron(II) complexescitations
- 2013Synthesis of 2,6-Di(pyrazol-1-yl)pyrazine derivatives and the spin-state behavior of their iron(II) complexescitations
- 2013Synthesis of monodispersed magnetite nanoparticles from iron pivalate clusterscitations
- 2012Deposition of iron selenide nanocrystals and thin films from tris(N,N-diethyl-N′-naphthoylselenoureato)iron(iii)citations
- 2012Synthesis, spectroscopic, and crystallographic characterizations of an antiferromagnetically coupled, oxobridged trinuclear manganese(IV) cluster [Mn3O4(H2O)2(phen)4] (NO3)4·3H2O [phen = 1,10-phenanthroline]citations
- 2011An antiferromagnetically coupled dimeric Ni(II) complex anion and its counter cationic monomeric Ni(II) complex, and some other mononuclear transition metal compounds using some neutral ligandscitations
- 2010Selective deposition of cobalt sulfide nanostructured thin films from single-source precursorscitations
- 2010Microstructure and properties of Co-, Ni-, Zn-, Nb- and W-modified multiferroic BiFeO3 ceramicscitations
- 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic propertiescitations
- 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic propertiescitations
Places of action
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article
Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic properties
Abstract
The magnetic moments of magnetite nanoparticles are dramatically enhanced through the addition of zinc in a microbiologically driven synthesis procedure. The particles are produced through the reduction of Fe(III)-compounds containing Zn(II) by the iron reducing bacterium Geobacter sulfurreducens. Results indicate a significant increase in the saturation magnetization by over 50% compared to magnetite at both room and low temperatures for relatively minor quantities of zinc substitution. A maximum saturation magnetization of nearly 100 emu g-1 of sample is measured at room temperature. Analysis of the cation site ordering reveals a complex dependence on the Zn content, with the combined effect of Zn substitution of Fe3+ ions on tetrahedral sites, together with Fe2+ cation oxidation, leading to the observed magnetization enhancement for low Zn doping levels. The improved magnetic properties give superior performance in MRI applications with an MRI contrast enhancement among the largest values reported, being more than 5 times larger than a commercial contrast agent (Feridex) measured under identical conditions. The synthesis technique applied here involves an environmentally benign route and offers the potential to tune the magnetic properties of magnetic nanoparticles, with increased overall magnetization desirable for many different commercial applications. A range of zinc doped magnetite nanoparticles are produced through the reduction of zinc-iron oxyhydroxide precursors by the bacterium Geobacter sulfurreducens. These materials exhibit significant increases in saturation magnetization at low zinc concentrations in comparison to stoichiometric magnetite. The enhanced magnetic properties are tested as potential MRI contrast agents and show significant MRI contrast enhancement over a commercially available agent. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.