| CdS量子点与曙红Y间的荧光共振能量转移研究 |
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| 引用本文： | 徐之冀,严拯宇,祁争健,查隽.CdS量子点与曙红Y间的荧光共振能量转移研究[J].化学通报,2016,79(12):1173-1177. |
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| 作者姓名： | 徐之冀 严拯宇 祁争健 查隽 |
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| 作者单位： | 东南大学化学化工学院,中国药科大学理学院,东南大学化学化工学院,安徽省食品药品检验研究院 |
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| 摘 要： | 在水溶液中,量子点与有机荧光染料之间可能发生荧光共振能量转移(FRET)。本文以发射波长470nm的Cd S量子点为供体,曙红Y为受体,建立了Cd S量子点-曙红Y的FRET体系,研究了该体系的FRET参数。该体系受体供体数目比为8,猝灭效率为45.6%,增强效率为20.1%;供体-受体间的距离为4.4nm;临界能量转移距离为2.4nm。
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| 关 键 词： | CdS量子点 曙红Y 荧光共振能量转移 |
| 收稿时间： | 4/8/2016 12:00:00 AM |
| 修稿时间： | 2016/5/17 0:00:00 |
Research on Fluorescence Resonance Energy Transfer between CdS Quantum Dots and Eosin Y |
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| Xu Zhiji,Yan Zhengyu,Qi Zhengjian and Zha Jun.Research on Fluorescence Resonance Energy Transfer between CdS Quantum Dots and Eosin Y[J].Chemistry,2016,79(12):1173-1177. |
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| Authors: | Xu Zhiji Yan Zhengyu Qi Zhengjian and Zha Jun |
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| Abstract: | In aqueous solution, fluorescence resonance energy transfer (FRET) behavior may occur between quantum dots(QDs)and organic fluorescent dyes. The FRET system was constructed by using the CdS QDs with an emission wavelength of 470 nm as an energy donor and Eosin Y as an acceptor. Some parameters of the FRET system were studied. In this system, the ratio of acceptor/donor was 8, quenching efficiency was 45.6%, Reinforcing efficiency was 20.1%, distance between donor and acceptor was 4.4nm, Critical energy transfer distance was 2.4nm. |
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| Keywords: | CdS quantum dots Eosin Y FRET |
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