Bead Sorting on a Droplet Actuator
    10.
    发明申请
    Bead Sorting on a Droplet Actuator 审中-公开
    珠子在滴液致动器上排序

    公开(公告)号:US20100048410A1

    公开(公告)日:2010-02-25

    申请号:US12531826

    申请日:2008-03-24

    IPC分类号: C40B30/00 C40B50/08

    摘要: A method of sorting beads on a droplet actuator. The method may, for example, include the following steps: (a) providing a droplet actuator comprising a substrate comprising electrodes arranged for conducting droplet operations on a substrate surface; (b) providing an assay droplet on the substrate surface, the droplet comprising two or more target-capture bead populations comprising target-capture beads comprising: (i) a capture probe bound to a target substance; and (ii) a unique bar binding element which binds to a corresponding binder; (c) using droplet operations to combine the assay droplet with a bead-capture droplet comprising one or more bead-capture beads having affinity for the binding element; (d) immobilizing the one or more bead-capture beads while conducting droplet operations to separate the bead-capture beads from unbound target-capture beads; (e) resuspending the one or more bead-capture beads in a droplet, thereby providing a droplet comprising a substantially pure substance-capture bead population; and (f) using droplet operations to conduct one or more protocol steps for an assay protocol.

    摘要翻译: 一种在液滴致动器上分选珠粒的方法。 该方法可以例如包括以下步骤:(a)提供液滴致动器,其包括基板,该基板包括布置成用于在基板表面上进行液滴操作的电极; (b)在基底表面上提供测定液滴,所述液滴包含两个或更多个目标捕获珠群,包含目标捕获珠,其包含:(i)与靶物质结合的捕获探针; 和(ii)结合相应的粘合剂的独特的棒结合元件; (c)使用液滴操作将测定液滴与包含对结合元件具有亲和性的一个或多个珠粒捕获珠粒的珠粒捕获液滴组合; (d)固定所述一个或多个珠粒捕获珠粒,同时进行液滴操作以将珠粒捕获珠粒与未结合的靶捕获珠粒分离; (e)将一个或多个珠粒捕获珠重新悬浮在液滴中,由此提供包含基本上纯的物质捕获珠粒的液滴; 和(f)使用液滴操作为测定方案进行一个或多个方案步骤。