| 铁氧化物/金磁性核壳纳米粒子的制备及其富集与SERS研究 |
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| 引用本文： | 鲍芳,姚建林,顾仁敖. 铁氧化物/金磁性核壳纳米粒子的制备及其富集与SERS研究[J]. 高等学校化学学报, 2008, 29(8): 1552-1554 |
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| 作者姓名： | 鲍芳 姚建林 顾仁敖 |
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| 作者单位： | 苏州大学化学系,苏州,215006;苏州大学化学系,苏州,215006;苏州大学化学系,苏州,215006 |
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| 基金项目： | 国家自然科学基金，教育部高等学校博士学科点专项科研基金，江苏省自然科学基金，国家重点实验室基金 |
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| 摘 要： | 本文用种子生长法制备铁氧化物/金磁性核壳纳米粒子, 并利用SERS对其磁场靶向性进行了检测.
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| 关 键 词： | 磁性核壳纳米粒子 表面增强拉曼光谱 铁氧化物/金 |
| 收稿时间： | 2008-03-07 |
Preparation of Magnetic Fe Oxide Core/Au Shell Nanoparticles and Their Surface-enhanced Raman Spectroscopy |
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| BAO Fang,YAO Jian-Lin,GU Ren-Ao. Preparation of Magnetic Fe Oxide Core/Au Shell Nanoparticles and Their Surface-enhanced Raman Spectroscopy[J]. Chemical Research In Chinese Universities, 2008, 29(8): 1552-1554 |
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| Authors: | BAO Fang YAO Jian-Lin GU Ren-Ao |
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| Affiliation: | Department of Chemistry, Suzhou University, Suzhou 215006, China |
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| Abstract: | Fe oxide core/Au shell nanoparticles were prepared by the reduction of Au3 onto the surfaces of Fe oxide nanoparticles and characterized by scanning electron microscopy(SEM). The results reveal that the prepared core/shell nanoparticles were covered by Au shell and the surfaces of the core/shell particles are jagged after the initial addition of Au3 . Surface enhanced Raman scattering(SERS) activities of these magnetic nanoparticles were studied by using pyridine(Py) as a probe molecule after a magnet was used to concentrate the colloid. It was found that the SERS intensity depends on the Au shell thickness of the core/shell nanoparticles and strengthens with the increasing shell thickness. The detection limit for Py can be very low when the magnetic Fe oxide core/Au shell nanoparticles were used and even down to 10-7 mol/L. |
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| Keywords: | Magnetic core/shell nanoparticles Surface enhanced Raman spectrum Fe oxide/Au |
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