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Magnetic properties and size distribution of magnetite nanoparticles covered by oleic acid

Propiedades magnéticas y distribución de tamaños de nanopartículas de magnetita recubiertas con ácido oleico

dc.contributor.authorFernandez Afonso, Yilian
dc.contributor.authorMaury Toledo, Augusto
dc.contributor.authorGarcía Zaldívar, Osmany
dc.contributor.authorHernández Landaverde, Martín Adelaido
dc.contributor.authorRamírez Bon, Rafael
dc.contributor.authorYañez Limón, José Martín
dc.contributor.authorDíaz Castañón, Sergio
dc.contributor.authorGonzález Alfaro, Yorexis
dc.contributor.authorCalderón Piñar, Francisco de Paula
dc.contributor.editorSociedad Cubana de Física
dc.contributor.editorFacultad de Física Universidad de La Habana
dc.date.accessioned2018-12-13T21:09:44Z
dc.date.available2018-12-13T21:09:44Z
dc.date.issued2017
dc.identifier.citationFERNÁNDEZ-AFONSO, Y. et al. Magnetic Properties and Size Distribution of Magnetite Nanoparticles Covered by Oleic Acid. Revista Cubana de Física, [S.l.], v. 34, n. 1, p. 3-8, july 2017.
dc.identifier.urihttp://hdl.handle.net/11627/4842
dc.description.abstract"The particle size and particle size distribution are very important to biomedical applications because the uptake of nanoparticles is strongly dependent on particle size. Oleic acid coated magnetite nanoparticles were synthesized by using chemical co-precipitation. The average particle size and particle size distribution measured by different techniques are compared. The crystallite sizes estimated by X-Ray Diffraction (9.32 nm) and the average particle size calculated by Transmission Electron Microscopy (9.46 nm) are very similar. Atomic Force Microscopy revealed an average diameter of 1030 nm, which is bigger than estimated by other techniques due to the oleic acid layer covering the nanoparticles. The distribution of magnetic sizes of nanoparticles was also estimated through the magnetic response of the system, using the Langevin model (9.11 nm). Anisotropy constant (Ka = 4.74 *105 erg/cm3) and blocking temperature (TB = 118 K) were obtained."
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.classificationFÍSICA
dc.titleMagnetic properties and size distribution of magnetite nanoparticles covered by oleic acid
dc.titlePropiedades magnéticas y distribución de tamaños de nanopartículas de magnetita recubiertas con ácido oleico
dc.typearticle
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional