Evanescent field modulation in a biosensor
    7.
    发明授权
    Evanescent field modulation in a biosensor 有权
    生物传感器中的消逝场调制

    公开(公告)号:US08390817B2

    公开(公告)日:2013-03-05

    申请号:US12810867

    申请日:2008-12-18

    IPC分类号: G01N21/55 G01N21/00

    CPC分类号: G01N21/552

    摘要: The present invention provides an FTIR system comprising a first light source emitting light of a first wavelength, a sample volume with an adjacent sensor surface, a detector for detecting light reflected at said sensor surface. The sensor surface is illuminated by said first light source fulfilling the condition of total internal reflection and generating an evanescent field with a decay length within the sample volume. The system further comprises means for changing the decay length of the evanescent field and means for correlating the detected signals with the change of the decay length of the evanescent field.

    摘要翻译: 本发明提供了一种FTIR系统,包括发射第一波长的光的第一光源,具有相邻传感器表面的样品体积,用于检测在所述传感器表面反射的光的检测器。 所述传感器表面由满足全内反射条件的所述第一光源照射,并产生具有在样品体积内的衰减长度的ev逝场。 该系统还包括用于改变ev逝场的衰减长度的装置和用于使检测到的信号与ev逝场的衰减长度变化相关联的装置。

    SENSING DEVICE FOR DETECTING A TARGET SUBSTANCE
    9.
    发明申请
    SENSING DEVICE FOR DETECTING A TARGET SUBSTANCE 有权
    用于检测目标物质的感应装置

    公开(公告)号:US20120040475A1

    公开(公告)日:2012-02-16

    申请号:US13201927

    申请日:2010-02-08

    IPC分类号: G01N21/55

    摘要: The present invention relates to a sensing device (100) for detecting a target substance (2) in an investigation region (113). The sensing device (100) comprises a sensing surface (112) with an investigation region (113) and a reference region (120) thereon. The sensing device (100) further comprises a reference element (121) located at the reference region (120). The reference element (121) is adapted to shield the reference region (120) from the target substance (2) such that light reflected at the reference region (120) under total internal reflection conditions remains unaffected by the presence or absence of the target substance (2). This allows measuring a property, typically the intensity, of light reflected at the reference region (120) independent of the presence or absence of the target substance (2). This measured property of the reflected light can be used for performing an improved correction of light reflected at the investigation region (113).

    摘要翻译: 本发明涉及一种用于在调查区域(113)中检测目标物质(2)的感测装置(100)。 感测装置(100)包括其上具有调查区域(113)和参考区域(120)的感测表面(112)。 感测装置(100)还包括位于参考区域(120)处的参考元件(121)。 参考元件(121)适于屏蔽参考区域(120)与目标物质(2),使得在全内反射条件下在参考区域(120)处反射的光线不会受到目标物质的存在或不存在的影响 (2)。 这允许独立于目标物质(2)的存在或不存在来测量在参考区域(120)处反射的光的特性(通常为强度)。 反射光的测量特性可用于对在调查区域(113)反射的光进行改进的校正。