Synthesis of MnxGa1−xFe2O4 magnetic nanoparticles by thermal decomposition method for medical diagnosis applications
| Autor: | Pascual Bartolo-Pérez, J.M. Almanza-Robles, Pamela Yajaira Reyes-Rodríguez, Rosario Argentina Jasso-Terán, J.C. Escobedo-Bocardo, Laura Elena De-León-Prado, Javier Sánchez, Dora A. Cortés-Hernández |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Thermal decomposition Analytical chemistry Energy-dispersive X-ray spectroscopy Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Magnetization Nuclear magnetic resonance X-ray photoelectron spectroscopy Transmission electron microscopy Magnetic nanoparticles 0210 nano-technology Superparamagnetism |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 427:272-275 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2016.10.098 |
| Popis: | In this work, the synthesis of Mn x Ga 1−x Fe 2 O 4 (x=0–1) nanosized particles by thermal decomposition method, using tetraethylene glycol (TEG) as a reaction medium, has been performed. The crystalline structure of the inverse spinel obtained in all the cases was identified by X-ray diffraction (XRD). Vibration sample magnetometry (VSM) was used to evaluate the magnetic properties of ferrites and to demonstrate their superparamagnetic behavior and the increase of magnetization values due to the Mn 2+ ions incorporation into the FeGa 2 O 4 structure. Transmission electron microscopy, energy dispersive spectroscopy (TEM-EDS) and X-ray photoelectron spectroscopy (XPS) were used to characterize the obtained magnetic nanoparticles (MNPs). These MNPs showed a near spherical morphology, an average particle size of 5.6±1.5 nm and a TEG coating layer on their surface. In all the cases MNPs showed no response when submitted to an alternating magnetic field (AMF, 10.2 kA/m, 354 kHz) using magnetic induction tests. These results suggest that the synthesized nanoparticles can be potential candidates for their use in biomedical areas. |
| Databáze: | OpenAIRE |
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