MULTI -FREQUENCY IMPEDANCE METHOD AND APPARATUS FOR DISCRIMINATING AND COUNTING PARTICLES EXPRESSING A SPECIFIC MARKER
    4.
    发明申请
    MULTI -FREQUENCY IMPEDANCE METHOD AND APPARATUS FOR DISCRIMINATING AND COUNTING PARTICLES EXPRESSING A SPECIFIC MARKER 审中-公开
    用于分辨和计数表示特定标记的颗粒的多级阻抗方法和装置

    公开(公告)号:WO2010140127A1

    公开(公告)日:2010-12-09

    申请号:PCT/IB2010/052460

    申请日:2010-06-02

    Inventor: MORGAN, Hywel

    Abstract: An analysis method for identifying and counting particles expressing a specific antigenic marker is proposed. One example (but not exclusive) is CD4+T- lymphocyte analysis in blood. The method comprises obtaining a sample comprising particles in suspension, labeling the particles expressing the specific marker with an impedance label, and measuring the labeled sample using a dual frequency system to discriminate at least the labeled particles expressing the specific marker. The method allows an accurate count of particles e.g. the number CD4+ T-lymphocytes in a blood flow. A corresponding device is also provided.

    Abstract translation: 提出了一种用于鉴定和计数表达特定抗原标记物的分析方法。 一个例子(但不排除)是血液中的CD4 + T淋巴细胞分析。 该方法包括获得包含悬浮液中的颗粒的样品,用阻抗标记物标记表达特定标记的颗粒,并使用双频系统测量标记的样品,以至少区分表达特定标记物的标记颗粒。 该方法允许精确计数颗粒,例如 血液中CD4 + T淋巴细胞数。 还提供了相应的设备。

    SURFACE-PATTERNED DEVICE
    6.
    发明申请
    SURFACE-PATTERNED DEVICE 审中-公开
    表面图案设备

    公开(公告)号:WO1995016204A1

    公开(公告)日:1995-06-15

    申请号:PCT/GB1994002680

    申请日:1994-12-07

    CPC classification number: B82Y10/00 G01N33/54353

    Abstract: There is described a device which has a surface coated with a biomolecule in a pre-determined pattern. The molecule is attached to the surface via a photosensitive binding moiety itself attached to the surface via a linking moiety. Preferably the linking moiety is avidin or a derivative thereof and the photosensitive binding moiety is photobiotin or a derivative thereof. The pattern of binding of the biomolecule is determined by the selective irradiation of non-irradiation of the photosensitive binding moiety. In a preferred embodiment two or more different ligands are bound to the surface in a pre-determined pattern. The device according to the invention may be of use in multi-analyte sensors in molecular electronics, in directional propagation of cell growth and in altering the behaviour of cells. The device may also be used to bind nucleotides which are subsequently manipulated or used as a probe or template.

    Abstract translation: 描述了具有以预定图案涂覆有生物分子的表面的装置。 分子通过经由连接部分附着于表面的光敏结合部分附着于表面。 优选地,连接部分是抗生物素蛋白或其衍生物,光敏结合部分是光生物素或其衍生物。 通过选择性地照射光敏结合部分的照射来确定生物分子的结合模式。 在优选的实施方案中,两种或更多种不同的配体以预定的图案结合到表面。 根据本发明的装置可以在分子电子学中的多分析物传感器,细胞生长的定向增殖和改变细胞行为中使用。 该装置还可用于结合随后被操纵或用作探针或模板的核苷酸。

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