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Journal of Bioactive and Compatible Polymers
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An Investigation of Two Kinds of Magnetic Chitosan Composite Microspheres

Ji Zhang

College of Life Science, Northwest Normal University, Lanzhou 730070, China, zhangj{at}nwnu.edu.cn

Shengtang Zhang

College of Life Science, Northwest Normal University, Lanzhou 730070, China

Guangpeng Wu

College of Life Science, Northwest Normal University, Lanzhou 730070, China

Wenqiang Wang

College of Life Science, Northwest Normal University, Lanzhou 730070, China

Sufang Gao

College of Life Science, Northwest Normal University, Lanzhou 730070, China

Ji Zhang

Institute of Polymers, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China

Yunpu Wang

Institute of Polymers, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China

In this study, two composite magnetic microspheres made of tamarind gum with chitosan and artemisia seed gum with chitosan were prepared by suspension cross-linking for magnetic carrier applications. The magnetic material used in the preparation of the microspheres was prepared by precipitating FeCl3 and FeSO4 solutions in a basic medium. The morphological, thermal stability, and magnetic properties of the two composite magnetic microspheres were characterized by scanning electron microscope, magnetometry, and differential scanning calorimeter (DSC). The swelling kinetics and pH responsive behavior of the two microspheres were also studied.

Key Words: tamarind gum • chitosan • artemisia seed gum • composite magnetic microspheres • magnetic microspheres • magnetic carrier.

Journal of Bioactive and Compatible Polymers, Vol. 22, No. 4, 429-441 (2007)
DOI: 10.1177/0883911507079967
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[Abstract] [PDF]