Fluorescent immunoassay employing total reflection for activation
    1.
    发明授权
    Fluorescent immunoassay employing total reflection for activation 失效
    荧光免疫测定采用全反射激活

    公开(公告)号:US3939350A

    公开(公告)日:1976-02-17

    申请号:US465009

    申请日:1974-04-29

    摘要: Receptors are employed to which one or more fluroescent molecules are bound. When the receptors are bound to the epitopic sites on the surface and light of predetermined wave length is directed toward the surface, the fluorescing molecules are activated and fluoresce.In carrying out an assay, receptor is combined with an unknown suspected of containing molecules having the same epitopic sites bound to the surface. The receptor will bind to these molecules reducing the number of receptor sites available for binding to the epitopic sites on the surface. When the assay medium is contacted with the surface, the amount of receptor which binds to the surface, will be a function of available binding sites and, therefore, to the number of the molecules present in the unknown. Upon irradiation of the surface, substantially only the fluoroescent molecules bound to the surface will fluoresce. By monitoring the fluorescence, one can determine the presence and number of molecules of interest present in the unknown.The apparatus consists of a transparent solid sheet, conveniently as part of or optically connected to a prism, a light source set at an angle to provide total internal reflection at the sheet, a cell which includes the reflecting surface as a wall, and a fluorescence detector. Various optics and filters may be employed to modify the light source beam and the fluorescence beam.This work was carried out under a grant of the National Science Foundation.

    摘要翻译: 使用一种或多种荧光分子结合的受体。 当受体结合到表面上的表位并且预定波长的光指向表面时,荧光分子被激活并发荧光。