Agglutination assays and kits employing colloidal dyes
    4.
    发明授权
    Agglutination assays and kits employing colloidal dyes 失效
    凝集测定法和使用胶体染料的试剂盒

    公开(公告)号:US5489537A

    公开(公告)日:1996-02-06

    申请号:US23906

    申请日:1993-02-23

    申请人: Morgan Van Aken

    发明人: Morgan Van Aken

    摘要: The present invention provides methods and kits for determining the presence or amount of a substance by detection of a colloidal dye associated with agglutinated particles. The disclosure of the present invention shows that the use of a suspension of colloidal dye, which contains dye unattached to the particles to be agglutinated, enhances the amount of colloidal dye associated with the particles following agglutination. The methods and kits are disclosed in direct and indirect (e.g., competitive) formats. In one aspect, the present invention provides methods and kits utilizing a single colloidal dye. In another aspect, methods and kits are provided which include two colloidal dyes, wherein one colloidal dye functions as a background-enhancing dye. A related aspect of the present invention provides methods and kits that include a colloidal dye and a non-water-soluble dye (which functions as a background-enhancing dye) attached to a microporous pad which permits differential migration of non-agglutinated and agglutinated particles. In yet another aspect, the present invention provides methods and kits utilizing a colloidal dye and a water-soluble dye, which functions as a background-enhancing dye.

    摘要翻译: 本发明提供用于通过检测与凝集颗粒相关的胶体染料来确定物质的存在或量的方法和试剂盒。 本发明的公开内容表明,使用含有未附着于要凝集的颗粒的染料的胶体染料的悬浮液增加了凝集后与颗粒相关的胶态染料的量。 方法和试剂盒以直接和间接(例如,竞争性)的形式公开。 一方面,本发明提供了使用单一胶态染料的方法和试剂盒。 在另一方面,提供了包括两种胶体染料的方法和试剂盒,其中一种胶体染料用作背景增强染料。 本发明的相关方面提供了包括胶态染料和附着于微孔垫的非水溶性染料(其起到背景增强染料的作用)的方法和试剂盒,其允许非凝集和凝集的颗粒的差异迁移 。 在另一方面,本发明提供了利用胶体染料和作为背景增强染料的水溶性染料的方法和试剂盒。