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RESEARCH PRODUCT
Hybrid magnetic materials formed by ferritin intercalated into a layered double hydroxide
Eugenio CoronadoAntonio RiberaMiguel Clemente-leónVicent PrimoAlejandra Soriano-portillosubject
Intercalation (chemistry)Analytical chemistryGeneral ChemistryCondensed Matter PhysicsFourier transform spectroscopylaw.inventionchemistry.chemical_compoundchemistrylawHydroxideMagnetic nanoparticlesGeneral Materials ScienceCalcinationHigh-resolution transmission electron microscopyHybrid materialSuperparamagnetismdescription
A hybrid magnetic material formed by ferritin intercalated into a layered double hydroxide (LDH) of Mg and Al (Mg/Al molar ratio 2) is prepared and characterized through powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, electron probe microanalysis (EPMA) and high resolution transmission electron microscopy (HRTEM). One observes an enhancement in the thermal stability of the ferritin molecules when they are inserted in the layered material. Magnetic measurements of the hybrid material exhibit the typical superparamagnetic behaviour of the ferritin molecule. On the other hand, the intercalation of ferritin into the LDH guarantees a homogeneous dispersion of the ferritin molecules, which do not aggregate even after calcination of the sample. This feature allows obtaining well-dispersed magnetic metal oxide nanoparticles upon calcination of the hybrid material.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-12-01 | Solid State Sciences |