Electrochemiluminescent enzyme immunoassay
    9.
    发明授权
    Electrochemiluminescent enzyme immunoassay 失效
    电化学发光酶免疫测定

    公开(公告)号:US06524865B1

    公开(公告)日:2003-02-25

    申请号:US08928075

    申请日:1997-09-11

    IPC分类号: G01N2176

    摘要: Electrochemiluminescent-labels and enzyme substrates, which preferably are conjugated, are used in immunoassays and electrochemiluminescence is generated catalytically. In conventional electrochemiluminescence immunoassays, an anti-analyte antibody molecule can give rise to typically 6-8 electrochemiluminescence-active ruthenium atoms, while in the present invention, each enzyme-labeled anti-analyte molecule can give rise to thousands of electrochemiluminescence-active ruthenium atoms per second. An exemplary immunoassay is based on a catalytic process employing &bgr;-lactamase-conjugated anti-analytes which enzymatically hydrolyze electrochemiluminescent-labeled substrates, making them strongly electrochemiluminescent. The electrochemiluminescence signal generated by each anti-analyte molecule (i.e., each analyte molecule) is much greater than with the conventional method. Accordingly, greater sensitivity can be gained in the measurement of low concentrations of a given immunoassay analyte.

    摘要翻译: 优选结合的电致化学发光标记和酶底物用于免疫测定,并且催化产生电化学发光。 在常规的电化学发光免疫测定中,抗分析物抗体分子可以产生典型的6-8个电化学发光 - 活性钌原子,而在本发明中,每个酶标记的抗分析物分子可产生数千个电化学发光 - 活性钌原子 每秒。 示例性的免疫测定是基于使用β-内酰胺酶缀合的抗分析物的催化方法,其中酶促水解电化学发光标记的底物,使其具有强电化学发光的功能。 由每个抗分析物分子(即每个分析物分子)产生的电化学发光信号比常规方法大得多。 因此,在给定免疫测定分析物的低浓度的测量中可以获得更高的灵敏度。

    Electrochemiluminescent enzyme immunoassay

    公开(公告)号:US07018802B2

    公开(公告)日:2006-03-28

    申请号:US10234874

    申请日:2002-09-04

    摘要: Electrochemiluminescent-labels and enzyme substrates, which preferably are conjugated, are used in immunoassays and electrochemiluminescence is generated catalytically. In conventional electrochemiluminescence immunoassays, an anti-analyte antibody molecule can give rise to typically 6–8 electrochemiluminescence-active ruthenium atoms, while in the present invention, each enzyme-labeled anti-analyte molecule can give rise to thousands of electrochemiluminescence-active ruthenium atoms per second. An exemplary immunoassay is based on a catalytic process employing β-lactamase-conjugated anti-analytes which enzymatically hydrolyze electrochemiluminescent-labeled substrates, making them strongly electrochemiluminescent. The electrochemiluminescence signal generated by each anti-analyte molecule (i.e., each analyte molecule) is much greater than with the conventional method. Accordingly, greater sensitivity can be gained in the measurement of low concentrations of a given immunoassay analyte.