Fabrication of Fe3O4@ SiO2@ Ag magnetic-plasmonic nanospindles as highly efficient SERS active substrates for label-free detection of pesticides
文献类型：期刊论文
| 作者 | He, Qinye1,2,3; Zhao, Aiwu1,2,3 ; Li, Lei1,2,3; Sun, Henghui1,3; Wang, Dapeng1,2,3; Guo, Hongyan1,2,3; Sun, Mei1,3; Chen, Ping1,3
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| 刊名 | NEW JOURNAL OF CHEMISTRY
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| 出版日期 | 2017 |
| 卷号 | 41期号:4页码:1582-1590 |
| DOI | 10.1039/c6nj03335k |
| 文献子类 | Article |
| 英文摘要 | Fe3O4@ SiO2@ Ag magnetic-plasmonic nanospindles with efficient SERS performance and magnetic responsiveness have been successfully fabricated. Uniform and monodispersed Fe3O4@ SiO2 nanospindles were prepared by a robust strategy through annealing the obtained beta-FeOOH@ SiO2 nanospindles in hydrogen atmospheres at 350 degrees C; the SiO2 shell could be regarded as an interlayer to maintain the morphology and offer a solid support for the further growth of Ag nanoparticles. Ag nanoparticles were introduced via in situ reduction of AgNO3, and the coverage rate of Ag nanoparticles anchored on Fe3O4@ SiO2 was adjusted through regulating the AgNO3 concentration. Fe3O4@ SiO2@ Ag magnetic-plasmonic nanospindles can serve as highly efficient SERS active substrates with controllable magnetic aggregation due to steady enrichment of mass molecules in close proximity to abundant hot spots. Moreover, these nanospindles are used for label-free detection of thiram, and the detection limit is as low as 1 x 10(-7) M (about 0.024 ppm), which is lower than the maximal residue limit of 7 ppm in fruits prescribed by the U. S. Environmental Protection Agency. Therefore, such magnetic-plasmonic nanospindles in the magnetic aggregation state may be potentially applied in rapid trace detection of residual pesticides or other specific analytes. |
| WOS关键词 | ENHANCED-RAMAN-SCATTERING ; GRAPHENE OXIDE ; SPECTROSCOPY ; NANOSTRUCTURES ; NANOPARTICLES ; MICROSPHERES ; MECHANISM ; GROWTH ; FILMS ; FTIR |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000395092600021 |
| 资助机构 | National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; National Natural Science Foundation of China(61378038) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2014FXZY003) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; Dean Foundation of Hefei Institute of Physical Science, CAS(YZJJ201514) ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology ; State Key Laboratories of Transducer Technology |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/31693]  |
| 专题 | 合肥物质科学研究院_中科院合肥智能机械研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, State Key Lab Transducer Technol, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Qinye,Zhao, Aiwu,Li, Lei,et al. Fabrication of Fe3O4@ SiO2@ Ag magnetic-plasmonic nanospindles as highly efficient SERS active substrates for label-free detection of pesticides[J]. NEW JOURNAL OF CHEMISTRY,2017,41(4):1582-1590. |
| APA | He, Qinye.,Zhao, Aiwu.,Li, Lei.,Sun, Henghui.,Wang, Dapeng.,...&Chen, Ping.(2017).Fabrication of Fe3O4@ SiO2@ Ag magnetic-plasmonic nanospindles as highly efficient SERS active substrates for label-free detection of pesticides.NEW JOURNAL OF CHEMISTRY,41(4),1582-1590. |
| MLA | He, Qinye,et al."Fabrication of Fe3O4@ SiO2@ Ag magnetic-plasmonic nanospindles as highly efficient SERS active substrates for label-free detection of pesticides".NEW JOURNAL OF CHEMISTRY 41.4(2017):1582-1590. |
入库方式： OAI收割
来源：合肥物质科学研究院
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