文章基本信息

标题：A Facile and Green Synthetic Route for Preparation of Heterostructure Fe3O4@Au Nanocomposites
本地全文：下载
作者：Liping Xie ; Liping Xie ; Wei Qian 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2017
卷号：88
页码：1-6
DOI：10.1051/matecconf/20178802001
语种：English
出版社：EDP Sciences
摘要：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.