TY - JOUR
T1 - Synthesis and characterization of Fe3O4 nanoparticles coated with fucan polysaccharides
AU - Silva, V. A.J.
AU - Andrade, P. L.
AU - Silva, M. P.C.
AU - Bustamante, A. D.
AU - De Los Santos Valladares, Luis
AU - Albino Aguiar, J.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - In this work we report the preparation of fucan-coated magnetite (Fe 3O4) nanoparticles by the co-precipitation method. These nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectro-scopy, Mössbauer spectroscopy and magnetic measurements. The nanoparticles showed quasi-spherical morphology with mean sizes around 10 nm. XRD and FT-IR confirmed the functionalization of the Fe3O4 nanoparticles with the fucan polysaccharide. Room temperature magnetization measurements and Mössbauer spectroscopy showed that the nanoparticles exhibited superparamagnetic behavior at 300 K and the magnetic properties of the Fe3O4 are partly screened by the coating preventing aggregation. © 2013 Elsevier B.V. All rights reserved.
AB - In this work we report the preparation of fucan-coated magnetite (Fe 3O4) nanoparticles by the co-precipitation method. These nanoparticles were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectro-scopy, Mössbauer spectroscopy and magnetic measurements. The nanoparticles showed quasi-spherical morphology with mean sizes around 10 nm. XRD and FT-IR confirmed the functionalization of the Fe3O4 nanoparticles with the fucan polysaccharide. Room temperature magnetization measurements and Mössbauer spectroscopy showed that the nanoparticles exhibited superparamagnetic behavior at 300 K and the magnetic properties of the Fe3O4 are partly screened by the coating preventing aggregation. © 2013 Elsevier B.V. All rights reserved.
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U2 - 10.1016/j.jmmm.2013.04.062
DO - 10.1016/j.jmmm.2013.04.062
M3 - Article
SN - 0304-8853
SP - 138
EP - 143
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
ER -