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Journal of Biomaterials Applications
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Research on the Structure and Performance of Bacterial Magnetic Nanoparticles

Lei Han

Institute of Nanobiotechnology, School of Materials Science and Engineering Tianjin University, Tianjin 300072, China

Shuang-Yan Li

Institute of Nanobiotechnology, School of Materials Science and Engineering Tianjin University, Tianjin 300072, China

Yong Yang

Institute of Nanobiotechnology, School of Materials Science and Engineering Tianjin University, Tianjin 300072, China

Feng-Mei Zhao

Institute of Nanobiotechnology, School of Materials Science and Engineering Tianjin University, Tianjin 300072, China

Jie Huang

Institute of Nanobiotechnology, School of Materials Science and Engineering Tianjin University, Tianjin 300072, China

Jin Chang

Institute of Nanobiotechnology, School of Materials Science and Engineering Tianjin University, Tianjin 300072, China, jinchang{at}tju.edu.cn

Magnetite nanocrystals have been widely used in many fields. Recently, a new magnetite nanocrystals, called magnetosome, has been found in magnetotactic bacteria. In this article, we researched on the properties of magnetosomes in detail, such as crystalline, morphology, crystal-size distributions, vitro cytotoxicity, and magnetic properties and quantified primary amino groups on the magnetosomes membrane surface by fluorescamine assay for the first time. From the results, it was clear that magnetosomes have more potential in the biomedical applications than synthetic magnetite.

Key Words: magnetosome • synthetic magnetite • magnetotactic bacteria • properties.

This version was published on March 1, 2008

Journal of Biomaterials Applications, Vol. 22, No. 5, 433-448 (2008)
DOI: 10.1177/0885328207079064
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