0000000000182021

AUTHOR

E. Popova

showing 2 related works from this author

Magneto-optical nanomaterials: a SPIO–phthalocyanine scaffold built step-by-step towards bimodal imaging

2013

A SPIO-phthalocyanine nanohybrid is developed as a bimodal contrast agent for Optical and Magnetic Resonance Imaging. The organic coating was covalently attached onto SPIO in a step-by-step approach. Each coated-SPIO was thoroughly characterized. The hydrodynamic size of the SPIO-Pc is ca. 60 nm with a coverage of ca. 690 Pc/SPIO.

Models MolecularScaffoldIndolesMaterials scienceContrast MediaNanoparticleNanotechnology02 engineering and technologyIsoindolesengineering.material010402 general chemistry01 natural sciencesCatalysisNanomaterialsMagneto opticalchemistry.chemical_compoundCoatingMaterials Chemistry[CHIM]Chemical SciencesComputingMilieux_MISCELLANEOUSMetals and AlloysGeneral Chemistry021001 nanoscience & nanotechnologyMagnetic Resonance ImagingFerrosoferric Oxide0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCeramics and CompositesPhthalocyanineengineeringNanoparticles0210 nano-technologyChemical Communications
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Preparation of magnetic composites of MIL-53(Fe) or MIL-100(Fe) via partial transformation of their framework into γ-Fe2O3

2016

A novel two-step approach is proposed to obtain magnetically active composite materials consisting of MIL-53(Fe) or MIL-100(Fe) and γ-Fe2O3 particles. The first step consists in a partial transformation of the framework into a layer of γ-FeO(OH) (lepidocrocite) covering the MOF particles. We found that such a transformation can be realized under air-free conditions by hydrolysing the MOFs at pH 6.2 in the presence of FeSO4. In the second step the obtained γ-FeO(OH)/MOF composite is heated under an air flow at 250 °C in order to transform γ-FeO(OH) to γ-Fe2O3. The thus prepared composites containing 40 wt% of the magnetic phase were characterized in detail by XRD, HRTEM, FESEM, N2 adsorption…

Materials scienceRenewable Energy Sustainability and the EnvironmentComposite number02 engineering and technologyGeneral Chemistryengineering.material010402 general chemistry021001 nanoscience & nanotechnologyMicrostructure01 natural sciences0104 chemical sciencesAdsorptionSpecific surface areaengineeringGeneral Materials ScienceCrystalliteLepidocrociteComposite material0210 nano-technologyHigh-resolution transmission electron microscopySuperparamagnetismJournal of Materials Chemistry A
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