Novel rhenium(I) polypyridine biotin complexes that show luminescence enhancement and lifetime elongation upon binding to avidin

被引:103
作者
Lo, KKW [1 ]
Hui, WK [1 ]
Ng, DCM [1 ]
机构
[1] City Univ Hong Kong, Dept Biol & Chem, Kowloon, Hong Kong, Peoples R China
关键词
D O I
10.1021/ja026598n
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
While most biotin-fluorophore conjugates suffer from significant emission quenching upon binding to avidin due to resonance energy-transfer, three novel rhenium(I) polypyridine biotin complexes have been designed in view of their characteristic photophysical properties, in particular their large Stokes shifts. In contrast to most biotin-fluorophore conjugates, the 3MLCT emission intensities and lifetimes of these rhenium(I) complexes are increased upon binding to avidin, rendering them luminescent probes for avidin and biotinylated species. Copyright © 2002 American Chemical Society.
引用
收藏
页码:9344 / 9345
页数:2
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