| The preparation and fluorescence properties of europium nanoparticles |
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| 作者姓名： | Xi Bao Gao Jiang Yu Ning Li Hong Yin Yin Jing He Yang |
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| 作者单位： | b，* |
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| 基金项目： | 国家自然科学基金;山东省自然科学基金 |
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| 摘 要： | A new structured metallic nanomaterial of europium nanoparticle was prepared using tannic acid as the reductive agent,and nanoeuropium protein conjugates were synthesized by the method of lipoic acid modification on the surface of nanoparticle,which opens a new field of application of lanthanides in nanotechniques.Their properties were also characterized by UV-vis absorption spectroscopy,transmission electron microscopy (TEM),and fluorescence spectroscopy.The europium nanoparticle and its protein conjugates solution were stable and water-soluble.The fluorescence intensity of the composite europium nanoparticles was significantly increased in the presence of trace protein,and was linear proportional to the concentration of proteins under optimum conditions.According to this,a fluorimetric method for the determination of protein was developed in this paper.
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| 关 键 词： | 铕 乳酸 荧光 化学实验 |
| 收稿时间： | 21 January 2007 |
| 修稿时间： | 2007-01-21 |
The preparation and fluorescence properties of europium nanoparticles |
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| Xi Bao Gao Jiang Yu Ning Li Hong Yin Yin Jing He Yang.The preparation and fluorescence properties of europium nanoparticles[J].Chinese Chemical Letters,2007,18(10):1289-1292. |
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| Authors: | Xi Bao Gao Jiang Yu Ning Li Hong Yin Yin Jing He Yang |
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| Institution: | 1. School of Public Health, Shandong University, Jinan 250012, China;2. College of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China |
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| Abstract: | A new structured metallic nanomaterial of europium nanoparticle was prepared using tannic acid as the reductive agent,and nanoeuropium protein conjugates were synthesized by the method of lipoic acid modification on the surface of nanoparticle,which opens a new field of application of lanthanides in nanotechniques.Their properties were also characterized by UV-vis absorption spectroscopy,transmission electron microscopy (TEM),and fluorescence spectroscopy.The europium nanoparticle and its protein conjugates solution were stable and water-soluble.The fluorescence intensity of the composite europium nanoparticles was significantly increased in the presence of trace protein,and was linear proportional to the concentration of proteins under optimum conditions.According to this,a fluorimetric method for the determination of protein was developed in this paper. |
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| Keywords: | Nanoparticle Europium Fluorescence |
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