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    • 11. 发明申请
    • UNITARY SANDWICH ENZYME IMMUNOASSAY CASSETTE, DEVICE AND METHOD OF USE
    • 单位三重奏酶免疫测定仪,装置及使用方法
    • WO1995029395A1
    • 1995-11-02
    • PCT/US1995005156
    • 1995-04-26
    • THE REGENTS OF UNIVERSITY OF MICHIGANMEYERHOFF, Mark, E.DUAN, Chaunming
    • THE REGENTS OF UNIVERSITY OF MICHIGAN
    • G01N21/00
    • G01N33/54366G01N33/5438G01N33/553Y10S435/975Y10S436/807
    • An enzyme sandwich immunoassay, device and cassette therefor for determining a target analyte are described. The enzyme sandwich immunoassay cassette (B) comprises a microporous membrane support (m) having coated thereon a conductive metal layer overlaid with a capture antibody layer (e). The electrochemical device (A) comprises a first chamber (b) into which sample and an enzyme labelled antibody capable of specifically binding to the target analyte are placed, wherein the enzyme is capable of catalyzing the production of an electrochemically detectable product; a second chamber (a) adjoining the first chamber (b) into which a substrate for the enzyme is placed, wherein the substrate is capable of producing, when catalyzed by the enzyme, the electrochemically detectable product; and, separating the first (b) and second (a) chambers, a microporous membrane support (m) as described above, wherein the conductive metal layer (e) of the microporous membrane support (m) acts as an electrode to detect, directly or indirectly, the presence of the electrochemically detectable product.
    • 描述了用于确定目标分析物的酶夹心免疫测定,其装置和盒。 酶切夹心免疫测定盒(B)包括在其上涂覆有覆盖有捕获抗体层(e)的导电金属层的微孔膜载体(m)。 电化学装置(A)包括第一室(b),其中放置样品和能够特异性结合靶分析物的酶标记抗体,其中所述酶能够催化产生电化学上可检测的产物; 毗邻第一室(b)的第二室(a),其中放置用于酶的底物,其中所述底物能够在被酶催化时产生电化学上可检测的产物; 并且分离第一(b)和第二(a)室,如上所述的微孔膜载体(m),其中微孔膜载体(m)的导电金属层(e)用作电极直接检测 或间接地存在电化学上可检测的产物。