MATEC Web Conf.
Volume 88, 20172016 International Conference on Biomaterials, Nanomaterials and Composite Materials (CBNCM 2016)
|Number of page(s)||6|
|Section||Chapter 2: Nano-materials and Composite materials|
|Published online||09 December 2016|
A Facile and Green Synthetic Route for Preparation of Heterostructure Fe3O4@Au Nanocomposites
1 Sino-Dutch Biomedical and Information Engineering School, Northeastern University, 110004, Shenyang, China
2 College of Life and Health Science, Northeastern University, 110004, Shenyang, China
Magnetic nanoparticles offer many exciting opportunities in biology and biomedicine, such as magnetic resonance imaging, magnetic hyperthermia therapy, biomedical diagnosis. The synthesis of multifunctional magnetic nanocomposites that possess water-solubility, magnetic properties and optical stability by a green method at room temperature in aqueous phase is still an unmet need. Here, we developed a simple and green method for preparing Fe3O4@Au integrated the super-paramagnetic and optical properties by seed-mediated growth at mild condition in aqueous phase. The amphiphilic, non-ionic and nontoxic polymer poly(vinylpyrrolidone) (PVP) was used as a coupling agent for synthesis of Fe3O4@Au nanocomposites, which avoided the direct connection of Au and Fe3O4, and improved the saturation magnetization values of Fe3O4@Au to 40 emu/g at room temperature. We anticipate that the multifunctional Fe3O4@Au nanocomposites with high magnetic and good optical properties will provide a platform for potential diagnostic and therapeutic biomedical applications.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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