Preparation and Characterization of Chitosan Poly(acrylic acid) Magnetic Microspheres

Spherical microparticles, capable of responding to magnetic fields, were prepared by encapsulating dextran-coated Fe(3)O(4) nanoparticles into chitosan poly(acrylic acid) (PAA) microspheres template. The obtained magnetic microspheres were characterized by transmission electron microscopy (TEM), Fou...

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Detalles Bibliográficos
Autores principales: Guo, Liang, Liu, Guang, Hong, Ruo-Yu, Li, Hong-Zhong
Formato: Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International 2010
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2920552/
https://www.ncbi.nlm.nih.gov/pubmed/20714433
http://dx.doi.org/10.3390/md8072212
Descripción
Sumario:Spherical microparticles, capable of responding to magnetic fields, were prepared by encapsulating dextran-coated Fe(3)O(4) nanoparticles into chitosan poly(acrylic acid) (PAA) microspheres template. The obtained magnetic microspheres were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and thermogravimetry (TG). The results showed that the microspheres were formed and demonstrated magnetic behavior in an applied magnetic field. In addition, magnetite particles were well encapsulated and the composite particles have high magnetite content, which was more than 40%.

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