Synthesis of CS-Fe3O4@ZnSe:Mn/ZnS magnetic and fluorescent biofunctional nanoparticles by electrostatic interaction approach
文献类型： 外文期刊
作者： Liu, Li 1 ; Xia, Hong 1 ; Peng, Maomin 1 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Agr Qual Stand & Testing Technol Res, Wuhan 430064, Peoples R China
关键词： Functional;Luminescence;Magnetic materials;Nanocomposites
期刊名称：MATERIALS LETTERS （ 影响因子：3.423； 五年影响因子：3.003 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： Magnetic and fluorescent biofunctional nanoparticles (MFNPs) CS-Fe3O4@ZnSe:Mn/ZnS were synthesized through electrostatic interaction technique. Firstly, chitosan coated Fe3O4 magnetic nanoparticles (CS-Fe3O4 MPs) were prepared by co-precipitation of ferrous and ferric ions in chitosan solution. Secondly, ZnSe:Mn/ZnS doped quantum dots (d-dots) were prepared by hydrothermal method using 3-mercaptopropionic acid (MPA) as a stabilizer. At last, the obtained CS-Fe3O4 MPs and ZnSe:Mn/ZnS d-dots were incorporated into a chitosan matrix. The structure and properties of the as-synthesized CS-Fe3O4@ZnSe:Mn/ZnS MFNPs were fully characterized. It was found that the MFNPs exhibit super paramagnetic and strong photoluminescence properties, favorable for their applications in simultaneous biolabeling, dual-modality imaging and selective magnetic separation. This work provide theoretical basis for the preparation of functional nanoparticles. (C) 2016 Elsevier B.V. All rights reserved.
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