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    • 5. 发明申请
    • SENSOR DEVICE FOR SANDWICH ASSAY
    • SANDWICH测量传感器设备
    • WO1995016914A1
    • 1995-06-22
    • PCT/GB1994002741
    • 1994-12-15
    • APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.ROBINSON, Grenville, ArthurFLETCHER, Janys
    • APPLIED RESEARCH SYSTEMS ARS HOLDING N.V.
    • G01N33/543
    • G01N33/54373Y10S435/808Y10S436/805
    • Sensor devices for use in assaying for a ligand in a sample are described, the devices comprising: i) a discrete zone ("the measurement zone") on a region of which ("the measurement region") is immobilised directly or indirectly a first specific binding partner for the ligand under assay (or a reagent precomplexed with or capable of forming a complex with a specific binding partner for the ligand under assay), which zone additionally contains, in releasable form, a first known amount of an optionally labelled second specific binding partner for the ligand under assay, the second specific binding partner being directed to an epitope of the ligand under assay different to the epitope to which the first specific binding partner is directed; and ii) a second discrete zone ("the reference zone") on a region of which is immobilised directly or indirectly a first specific binding partner for the ligand under assay (or a reagent precomplexed with or capable of forming a complex with a specific binding partner for the ligand under assay), which zone additionally contains, in releasable form, a known amount of ligand analogue and separately contains, in releasable form, a second known amount of an optionally labelled second specific binding partner for the ligand under assay as defined above, said second known amount being less than the aforementioned first known amount in the measurement zone. Methods of sandwich assay using such devices are also described.
    • 描述了用于测定样品中配体的传感器装置,所述装置包括:i)在其区域(“测量区域”)上的离散区域(“测量区域”)直接或间接地固定在第一 (或与分析中的配体的特异性结合配偶体复合或能够形成复合物的试剂的特异性结合配偶体),该区域以可释放形式另外含有第一已知量的任选标记的第二 在测定下配体的特异性结合配偶体,第二特异性结合配偶体被引导到与第一特异性结合配偶体所针对的表位不同的测定下的配体的表位; 和ii)第二离散区(“参考区”),其区域直接或间接地固定在测定下的配体的第一特异性结合配偶体(或与预定复合物或能够形成具有特异性结合的复合物的试剂 配体在测定中),该区域另外含有已知量的配体类似物,并且以可释放的形式另外含有第二已知量的用于所测定的配体的任选标记的第二特异性结合配偶体,定义如下 所述第二已知量小于测量区中的上述第一已知量。 还描述了使用这种装置的夹心测定方法。