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Synthesis and characterization of superparamagnetic iron oxide nanoparticles for biomedical applications |
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| Authors: | L. A. Cano M. V. Cagnoli S. J. Stewart E. D. Cabanillas E. L. Romero S. G. Marchetti |
| Affiliation: | 1. CINDECA, Facultad de Ciencias Exactas, UNLP, CCT, CONICET, Calle 47 N° 257, 1900, La Plata, Argentina 2. IFLP, CAC–La Plata, CONICET, Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 49 y 115, 1900, La Plata, Argentina 3. Departamento de Materiales, CNEA, Av. del Libertador 8250, 1429, Buenos Aires, Argentina 4. Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Sáenz Pe?a 180, Bernal, 1876, Buenos Aires, Argentina |
| Abstract: | Monodisperse iron oxide nanoparticles (NPs) of 4 nm were obtained through high-temperature solution phase reaction of iron (III) acetylacetonate with 1, 2-hexadecanediol in the presence of oleic acid and oleylamine. The as-synthesized iron oxide nanoparticles have been characterized by X-ray diffraction, transmission electron microscopy, Mössbauer spectroscopy and magnetic measurements. The species obtained were Fe3O4 and/or $upgamma$ -Fe2O3. These NPs are superparamagnetic at room temperature and even though the reduced particle size they show a high saturation magnetization (MS ≈ 90 emu/g). |
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