Electroactive microspheres and methods
    1.
    发明申请
    Electroactive microspheres and methods 失效
    电活性微球和方法

    公开(公告)号:US20040058389A1

    公开(公告)日:2004-03-25

    申请号:US10666412

    申请日:2003-09-18

    IPC分类号: G01N033/53 G01N033/553

    摘要: Methods and devices for electrochemical detection of a specific binding pair member utilizing a microsphere with an incorporated electroactive marker, wherein a member of the specific binding pair to be detected is bound, directly or through one or more intermediates, to the microsphere. Multiple specific binding pair members may be detected by use of electrochemically distinguishable electroactive markers. Microspheres with incorporated electroactive markers may include one or more functional groups for binding members of specific binding pairs, and are preferably insoluble in aqueous solvents but soluble in selected organic solvents.

    摘要翻译: 使用具有引入的电活性标记的微球体特异性结合对成员的电化学检测的方法和装置,其中要检测的特异性结合对的成员直接或通过一个或多个中间体结合到微球体。 可以通过使用电化学上可区分的电活性标记来检测多个特异性结合对成员。 具有引入的电活性标记的微球可以包括用于结合特异性结合对成员的一个或多个官能团,并且优选不溶于水性溶剂,但可溶于选定的有机溶剂。

    Biosensor for detecting iron
    4.
    发明授权
    Biosensor for detecting iron 失效
    用于检测铁的生物传感器

    公开(公告)号:US5516697A

    公开(公告)日:1996-05-14

    申请号:US512950

    申请日:1995-08-09

    申请人: Marian L. Kruzel

    发明人: Marian L. Kruzel

    摘要: A simple, cost effective assay of iron is accomplished by using lactoferrin as part of a biosensor to detect iron in a sample. The lactoferrin releases protons when the iron is sequestered by the lactoferrin and the change in potential caused by the release of protons is measured by a potentiometer or pH sensing device. The sensing devices include the ion-selective or ion sensitive field effect transistors (ISFET), a potentiometric device or the pH indicator papers.

    摘要翻译: 通过使用乳铁蛋白作为生物传感器的一部分来检测样品中的铁来实现铁的简单,成本有效的测定。 当铁由乳铁蛋白隔离时,乳铁蛋白释放质子,并且通过电位计或pH感测装置测量由质子释放引起的电位变化。 感测装置包括离子选择性或离子敏感场效应晶体管(ISFET),电位器件或pH指示纸。

    Method and device for mass transfer operation in immunoassays and other
applications
    7.
    发明授权
    Method and device for mass transfer operation in immunoassays and other applications 失效
    用于免疫测定和其他应用中质量传递操作的方法和装置

    公开(公告)号:US4454231A

    公开(公告)日:1984-06-12

    申请号:US212806

    申请日:1980-12-04

    摘要: The present invention relates to a new technique and device for mass transfer of one or more components from one liquid phase to another liquid phase, involving a physical separation of said two phases.According to the new technique, the mass transfer and physical separation are carried out in the same device. The device consists of a mixing-reservoir into which is fitted snugly a mixer-separator, having a channel in the vertical axis of the mixer-separator. The two substantially immiscible liquid solutions are introduced into the mixing reservoir, the phases are thoroughly mixed, by moving the mixer-separator in and out the mixing reservoir. After the spontaneous separation into an upper and lower phase, the upper phase is removed by pushing in the mixer-separator said upper phase being accumulated in a collecting container.The new technique and device can be successfully utilized in the general field of liquid-liquid extraction and particularly applied in immunoassays, where the two basic operations of mass transfer and physical separation of fractions are required.

    摘要翻译: 本发明涉及用于将一种或多种组分从一个液相传质到另一个液相的新技术和装置,其涉及所述两相的物理分离。 根据新技术,传质和物理分离在相同的装置中进行。 该装置由混合容器组成,其中紧密地安装有混合器分离器,在混合器分离器的垂直轴上具有通道。 将两个基本上不混溶的液体溶液引入混合容器中,通过将混合器分离器移入和移出混合容器而将相充分混合。 在自发分离成上,下相之后,通过将混合器分离器中的上部相积聚在收集容器中来推动上相。 新技术和设备可以在液 - 液萃取的一般领域得到成功应用,特别适用于免疫测定,其中需要传质和物理分离两种基本操作。

    Test pack kit for immunoassay
    8.
    发明授权
    Test pack kit for immunoassay 失效
    用于免疫测定的测试包试剂盒

    公开(公告)号:US4230664A

    公开(公告)日:1980-10-28

    申请号:US5754

    申请日:1979-01-23

    申请人: Michael Cais

    发明人: Michael Cais

    摘要: A test pack kit for assaying for a ligand in a liquid medium. The kit comprises specially designed assay tubes, each tube having a cylindrical side arm which can be interconnected with the side arm of another assay tube. In addition, the pack kit contains antiserum; a conjugate of a metal labelling substance with the ligand; assay calibration standards--in vials containing known concentrations of unlabelled ligand; a separation agent in vials containing material used for separating the bound antibody--metal labelling complex from the unbound metal labelling substance and instrument calibration standards--in vials containing several known concentrations of the metal--labelling substance. Errors caused by pipetting or transferring of reagents from one container to another are practically eliminated.

    摘要翻译: 用于测定液体介质中配体的测试包试剂盒。 该试剂盒包括特别设计的测定管,每个管具有可与另一测定管的侧臂互连的圆柱形侧臂。 此外,包装盒含有抗血清; 金属标记物质与配体的共轭物; 测定校准标准品 - 含有已知浓度的未标记配体的小瓶; 在包含用于从未结合的金属标记物质和仪器校准标准物分离结合的抗体 - 金属标记复合物的材料的小瓶中的分离剂 - 在含有几种已知浓度的金属标记物质的小瓶中。 实际上消除了将试剂从一个容器移液或转移到另一个容器造成的错误。

    Indirect solid surface test for antigens or antibodies
    10.
    发明授权
    Indirect solid surface test for antigens or antibodies 失效
    抗原或抗体的间接固体表面试验

    公开(公告)号:US4067959A

    公开(公告)日:1978-01-10

    申请号:US684775

    申请日:1976-05-10

    申请人: Gunner Bolz

    发明人: Gunner Bolz

    摘要: An indirect method for the quantitation of an antigen or antibody in a liquid sample. In the antigen assay, antigen of the same type as the sample antigen is adsorbed onto a solid support surface. Then, specific labelled antibody is immunologically reacted in solution with the sample antigen and the adsorbed antigen. The quantity of reacted labelled antibody on the solid support surface is then determined, as for example, fluorogen label by a fluorometer. The procedure is employed for detection of antibody by reversing the antigen and antibody components in each instance.

    摘要翻译: 用于定量液体样品中抗原或抗体的间接方法。 在抗原测定中,与样品抗原相同类型的抗原被吸附在固体支持物表面上。 然后,特异性标记的抗体与溶液中的样品抗原和吸附的抗原进行免疫反应。 然后测定固体支持体表面上反应的标记抗体的量,例如通过荧光计的荧光标记。 该方法用于通过在每种情况下逆转抗原和抗体组分来检测抗体。