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    • 67. 发明申请
    • IMPROVED DETECTION SIGNAL AND CAPTURE IN DIPSTICK ASSAYS
    • DIPSTICK测试中改进的检测信号和捕获
    • WO0204667A2
    • 2002-01-17
    • PCT/GB0103021
    • 2001-07-06
    • LEE HELEN
    • LEE HELENDINEVA MAGDA ANASTASSOVA
    • G01N33/53B01L3/00C12M1/00C12N15/09C12Q1/68G01N33/543G01N33/569G01N33/571
    • C12Q1/6818B01L3/5023C12Q1/6816C12Q2565/625
    • Improved dipstick assays for testing for the presence of a target nucleic acid in a sample solution are described. A dipstick is provided which comprises a contact end for contacting the sample solution and a capture zone remote from the contact end for capturing target nucleic acid. Sample solution is contacted with the contact end to cause sample solution to move by capillary action to the capture zone. Target nucleic acid in the sample solution is captured at the capture zone and is detected by a plurality of different labelled detection probes each capable of hybridising to a different region of the target nucleic acid. The detection signal is thereby enhanced. In other methods a plurality of different capture probes are added to the sample solution which can then be bound by a capture moiety at the capture zone to indirectly capture target nucleic acid. Capture of target nucleic acid is thereby improved. Kits and dipsticks for carrying out such methods are also described.
    • 描述了用于测试样品溶液中靶核酸存在的改进的测试片测定法。 提供量油尺,其包括用于接触样品溶液的接触端和远离接触端的用于捕获靶核酸的捕获区。 样品溶液与接触端接触,使样品溶液通过毛细管作用移动到捕获区。 样品溶液中的靶核酸在捕获区被捕获并且被多个不同的标记的检测探针检测,每个标记的检测探针都能够与靶核酸的不同区域杂交。 检测信号由此被增强。 在其他方法中,将多个不同的捕获探针添加到样品溶液中,然后可以在捕获区域通过捕获部分结合以间接捕获目标核酸。 靶核酸的捕获因此得到改善。 还描述了执行这些方法的试剂盒和量规。