Fluorescence-lifetime technologies for high-throughput screening

被引:9
作者
French, T [1 ]
Owicki, JC [1 ]
Modlin, DN [1 ]
Deshpande, SS [1 ]
Mineyev, I [1 ]
Crawford, K [1 ]
Burton, W [1 ]
机构
[1] LJL BioSyst Inc, Sunnyvale, CA 94089 USA
来源
SYSTEMS AND TECHNOLOGIES FOR CLINICAL DIAGNOSTICS AND DRUG DISCOVERY, PROCEEDINGS OF | 1998年 / 3259卷
关键词
drug discovery; background rejection; ruthenium; phase-sensitive; phase-resolved; fluorescence spectroscopy;
D O I
10.1117/12.307330
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Fluorescence lifetime, the mean interval between absorption and emission, is as fundamental a characteristic of fluorescence as excitation and emission wavelengths and quantum yield. Yet, with the exception of time-resolved fluorescence assays utilizing lanthanide chelates, the analytical possibilities of methods based on fluorescence lifetime are virtually unexploited outside the academic research laboratory. We discuss the potential use of fluorescence-lifetime technologies in high-throughput screening from the standpoint of assay reagents and instrumentation. Among these applications are fluorescence-polarization assays based on long-lifetime probes and fluorescence-intensity assays using lifetime-resolved detection to reject background. We find that fluorescence-lifetime technologies offer significant practical advantages over existing methods.
引用
收藏
页码:209 / 218
页数:10
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