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Elaboration and characterization of magnetic nanocomposite fibers by electrospinning |
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| Authors: | Sara Cavaliere Vincent Salles Arnaud Brioude Yoann Lalatonne Laurence Motte Philippe Monod David Cornu Philippe Miele |
| Institution: | 1. Laboratoire des Multimatériaux et Interfaces, UMR 5615 CNRS-Université Lyon 1, Université de Lyon, 43 bd du 11 Novembre 1918, 69622, Villeurbanne, France 6. Institut Charles Gerhardt, UMR CNRS 5253, Laboratoire des Agrégats, Interfaces et Matériaux pour l’énergie, Université Montpellier 2, 34095, Montpellier Cedex 5, France 2. Laboratoire BioMoCeTi UMR 7033, CNRS-Université Paris 13, 74 rue Marcel Cachin, 93017, Bobigny, France 3. Service de Médecine Nucléaire, H?pital Avicenne, 125 route de Stalingrad, 93009, Bobigny Cedex, France 4. ESPCI ParisTech, Laboratoire de Physique du Solide, 10 Rue Vauquelin, 75005, Paris, France 5. Institut Européen des Membranes UMR 5635 ENSCM-CNRS-Université Montpellier 2, 1919 route de Mende, 34293, Montpellier Cedex 5, France |
| Abstract: | We describe a simple method based on the electrospinning process to prepare heterogeneous hybrid submicronic fibers with magnetic behavior, consisting of Co nanoparticles embedded in a polyacrylonitrile (PAN) polymer. Quantity and anisotropy of magnetic nanoparticles are key parameters to improve the specific magnetic properties of fibers. We notably show that for higher Co nanoparticles concentration, their lower dispersity into the resulting fibers lead to dipolar interactions that become demagnetizing. The structural and morphological properties of Co nanodisks and of the resulting nanocomposite fibers are investigated by SEM, TEM, and EDX. The magnetic properties of the hybrid electrospun fibers have been evaluated with a SQUID magnetometer. |
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