Preparation and fluorescent properties of a complex probe based on inorganic QDs and organic dye

Preparation and fluorescent properties of a complex probe based on inorganic QDs and organic dye
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基于无机量子点和有机染料的复合探针的制备及荧光性能

DOI:
10.1016/j.jlumin.2010.10.015
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发表时间:
2011-02
影响因子:
3.6
通讯作者:
Wang, Jun
Wang, Jun
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Jia, Guozhi;Fei, Xuening;Gu, Yingchun;Liu, Zhijun;Wang, Jun

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设计并制备了一种新型的量子点-有机染料复合荧光探针(QDs-TO),并将苯并噻唑衍生物引入QDs-1-(3-酰胺丙基)-4-甲基喹啉中。用FT-IR和TG/DTA对配合物进行了表征。QDs-1-(3-酰胺丙基)-4-甲基喹啉的发射波长在475 nm处,在550 nm处出现了一个新的对应于QDs-TO的发射峰,表明苯并噻唑衍生物可以与QDs-1-(3-酰胺丙基)-4-甲基喹啉反应生成QDs-TO。此外,在反应过程中,量子点的发射波长发生蓝移,而TO的特征峰发生红移。这表明,该探针可能是有用的生物标记提供了一种有效的方法来研究量子点和有机染料之间的相互关系。
A novel complex fluorescent probe based on quantum dots and organic dye (QDs-TO) was designed and prepared by incorporating a benzothiazole derivative into QDs-1-(3-amidepropyl)-4-methylquinoline. The complex probe was characterized by FT-IR and TG/DTA. The emission wavelength of QDs-1-(3-amidepropyl)-4-methylquinoline was found at 475nm and a new peak corresponding to QDs-TO appeared at 550nm, indicating that benzothiazole derivative can react with QDs-1-(3-amidepropyl)-4-methylquinoline to afford QDs-TO. Furthermore, the emission wavelength of QDs shifted blue while the characteristic peak of TO shifted red during the reaction. This suggests that the probe may be useful for biological labeling in offering an efficient method to study the interrelation between quantum dots and organic dyes.
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