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Self-assembly multifunctional nanocomposites with Fe3O4 magnetic core and CdSe/ZnS quantum dots shell
文献类型：期刊论文
| 作者 | Y. Zhang ; S. N. Wang ; S. Ma ; J. J. Guan ; D. Li ; X. D. Zhang ; Z. D. Zhang |
| 刊名 | Journal of Biomedical Materials Research Part A
 |
| 出版日期 | 2008 |
| 卷号 | 85A期号:3页码:840-846 |
| 关键词 | multifunctional nanocomposites magnetic nanoparticles fluorescence quantum dots sol-gel thiol coordination nanoparticles nanocrystals fluorescent separation particles bacteria spheres silica beads |
| ISSN号 | 1549-3296 |
| 中文摘要 | This paper describes a new method for self-assembling multifunctional nanocomposites with a magnetic core of iron oxide Fe3O4 and a shell of CdSe/ZnS quantum dots (QDs). Two sol-gel processes were applied to form the uniform magnetic seeds (Fe3O4@SiO2-SH) and then the thiol coordination was used to bind the CdSe/ZnS QDs to the surface of the seeds. The multifunctional nanocomposites were characterized by means of transmission electron microscopy, X-ray diffraction, energy disperse spectroscopy, fluorescence spectroscopy, infrared spectroscopy, and superconducting quantum interference device (SQUID) magnetometer. The results showed that the magnetic Fe3O4 nanoparticles and the CdSe/ZnS fluorescent QDs were combined together. The nanocomposites were of spherical shape with a mean diameter of 25 nm and exhibited well magnetic response, photostability, chemical activity, and water miscibility. The method put forward here can also be extended to combine systems of other metal oxides and QDs to fabricate core-shell nanocomposites with multifunction for biomedical applications. (c) 2007 Wiley Periodicals, Inc. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33348]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Zhang,S. N. Wang,S. Ma,et al. Self-assembly multifunctional nanocomposites with Fe3O4 magnetic core and CdSe/ZnS quantum dots shell[J]. Journal of Biomedical Materials Research Part A,2008,85A(3):840-846. |
| APA | Y. Zhang.,S. N. Wang.,S. Ma.,J. J. Guan.,D. Li.,...&Z. D. Zhang.(2008).Self-assembly multifunctional nanocomposites with Fe3O4 magnetic core and CdSe/ZnS quantum dots shell.Journal of Biomedical Materials Research Part A,85A(3),840-846. |
| MLA | Y. Zhang,et al."Self-assembly multifunctional nanocomposites with Fe3O4 magnetic core and CdSe/ZnS quantum dots shell".Journal of Biomedical Materials Research Part A 85A.3(2008):840-846. |
入库方式： OAI收割
来源：金属研究所
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