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Mar. Drugs 2010, 8(7), 2212-2222; doi:10.3390/md8072212
Article

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

1
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Received: 16 June 2010; in revised form: 3 July 2010 / Accepted: 7 July 2010 / Published: 23 July 2010
(This article belongs to the Special Issue Marine Chitin and Chitosan)
View Full-Text   |   Download PDF [340 KB, uploaded 23 July 2010]
Abstract: Spherical microparticles, capable of responding to magnetic fields, were prepared by encapsulating dextran-coated Fe3O4 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%.
Keywords: magnetic microsphere; magnetic separation; nanoparticles; chitosan poly(acrylic acid) magnetic microsphere; magnetic separation; nanoparticles; chitosan poly(acrylic acid)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Guo, L.; Liu, G.; Hong, R.-Y.; Li, H.-Z. Preparation and Characterization of Chitosan Poly(acrylic acid) Magnetic Microspheres. Mar. Drugs 2010, 8, 2212-2222.

AMA Style

Guo L, Liu G, Hong R-Y, Li H-Z. Preparation and Characterization of Chitosan Poly(acrylic acid) Magnetic Microspheres. Marine Drugs. 2010; 8(7):2212-2222.

Chicago/Turabian Style

Guo, Liang; Liu, Guang; Hong, Ruo-Yu; Li, Hong-Zhong. 2010. "Preparation and Characterization of Chitosan Poly(acrylic acid) Magnetic Microspheres." Mar. Drugs 8, no. 7: 2212-2222.


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