期刊
BIOTECHNOLOGY ADVANCES
卷 29, 期 1, 页码 142-155出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biotechadv.2010.10.003
关键词
Magnetic nanoparticles; Iron oxide; Polysaccharides; Biotechnology; Biomedical
资金
- Fundacao para a Ciencia e Tecnologia, Portugal [PTDC/BIO/65383/2006, PTDC/EBB-BIO/102163/2008, PTDC/EBB-BIO/098961/2008, SFRH/BPD/34768/2007]
- Santander Totta Bank - Universidade Nova de Lisboa
Iron oxide magnetic nanoparticles (MNPs) alone are suitable for a broad spectrum of applications, but the low stability and heterogeneous size distribution in aqueous medium represent major setbacks. These setbacks can however be reduced or diminished through the coating of MNPs with various polymers, especially biopolymers such as polysaccharides. Polysaccharides are biocompatible, non-toxic and renewable; in addition, they possess chemical groups that permit further functionalization of the MNPs. Multifunctional entities can be created through decoration with specific molecules e.g. proteins, peptides, drugs, antibodies, biomimetic ligands, transfection agents, cells, and other ligands. This development opens a whole range of applications for iron oxide nanoparticles. In this review the properties of magnetic structures composed of MNPs and several polysaccharides (Agarose, Alginate, Carrageenan, Chitosan, Dextran, Heparin, Gum Arabic, Pullulan and Starch) will be discussed, in view of their recent and future biomedical and biotechnological applications. (C) 2010 Elsevier Inc. All rights reserved.
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