发明名称 |
Membrane-based assay devices that utilize time-resolved fluorescence |
摘要 |
A membrane-based assay device for detecting the presence or quantity of an analyte residing in a test sample is provided. The device utilizes time-resolved fluorescence to detect the signals generated by excited fluorescent labels. Because the labels can have relatively long emission lifetime, short-lived background interference can be practically eliminated through delayed fluorescence detection. In addition, the resulting fluorescent reader can have a simple and inexpensive design. For instance, in one embodiment, the reader can utilize a silicon photodiode and a pulsed light-emitting diode (LED) to accurately excite labels and detect fluorescence on a membrane-based assay device without requiring the use of expensive components, such as monochromators or narrow emission band width optical filters.
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申请公布号 |
US7632653(B2) |
申请公布日期 |
2009.12.15 |
申请号 |
US20020286342 |
申请日期 |
2002.11.01 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
SONG XUEDONG;KAYLOR ROSANN;KNOTTS MICHAEL;WEI NING |
分类号 |
G01N33/533;G01N21/27;G01N21/64;G01N33/52;G01N33/58 |
主分类号 |
G01N33/533 |
代理机构 |
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地址 |
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