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    • 2. 发明申请
    • GRATING-BASED SENSOR COMBINING LABEL-FREE BINDING DETECTION AND FLUORESCENCE AMPLIFICATION AND READOUT SYSTEM FOR SENSOR
    • 基于GRATING的传感器组合无标签绑定检测和荧光放大和读取传感器系统
    • WO2007019024A2
    • 2007-02-15
    • PCT/US2006028473
    • 2006-07-20
    • SRU BIOSYSTEMS INCSCHULZ STEPHEN CCUNNINGHAM BRIAN TLAING LANCE GLI PETER YBINDER BRANTJOGIKALMATH GANGADHARBORSODY ALEX
    • SCHULZ STEPHEN CCUNNINGHAM BRIAN TLAING LANCE GLI PETER YBINDER BRANTJOGIKALMATH GANGADHARBORSODY ALEX
    • G01N21/55G01N21/64
    • G01N21/648G01N21/552G01N21/6428G01N21/7743Y10S435/808Y10S436/805Y10T436/143333
    • A grating-based sensor is disclosed that has a grating structure constructed and designed for both evanescent resonance (ER) fluorescence detection and label-free detection applications. Some embodiments are disclosed which are optimized for ER detection in an air mode, in which the sample is dry. Other embodiments are optimized for ER detection in liquid mode, in which the sample is suspended in liquid medium such as water. One and two-dimensional gratings are also disclosed, including gratings characterized by unit cells with central posts, central holes, and two-level, two-dimensional gratings. A readout system for such sensors is also disclosed. One embodiment includes a first light source optimized for collecting label -free detection data, a second light source optimized for collecting ER fluorescence amplification data, and at least one detector. In one embodiment, the detector is an imaging system and includes a CCD camera for collecting both ER and label-free data. In other embodiments, the at least one detector takes the form of a spectrometer for collection of label-free data and a photomultiplier for collecting ER data. In other embodiments, a single light source such as a tunable laser or broad band light source is used.
    • 公开了一种光栅传感器,其具有构造和设计用于ev逝共振(ER)荧光检测和无标签检测应用的光栅结构。 公开了一些实施例,其被优化用于空气模式中的ER检测,其中样品是干的。 其它实施例针对液体模式中的ER检测进行了优化,其中将样品悬浮在诸如水的液体介质中。 还公开了一维和二维光栅,包括以具有中心柱,中心孔和两层二维光栅的单元电池为特征的光栅。 还公开了一种用于这种传感器的读出系统。 一个实施例包括优化用于收集无标记检测数据的第一光源,为收集ER荧光放大数据而优化的第二光源和至少一个检测器。 在一个实施例中,检测器是成像系统,并且包括用于收集ER和无标签数据的CCD照相机。 在其他实施例中,至少一个检测器采用用于收集无标签数据的光谱仪的形式和用于收集ER数据的光电倍增管。 在其他实施例中,使用诸如可调激光器或宽带光源的单个光源。