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    • 4. 发明申请
    • BEAD SORTING ON A DROPLET ACTUATOR
    • 珠子致动器上的珠子
    • WO2008116221A1
    • 2008-09-25
    • PCT/US2008/058047
    • 2008-03-24
    • ADVANCED LIQUID LOGIC, INC.SHENDEROV, AlexanderPAMULA, VamseeECKHARDT, Allen
    • SHENDEROV, AlexanderPAMULA, VamseeECKHARDT, Allen
    • C40B50/08
    • G01N33/54366G01N33/54326G01N35/0098
    • 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.
    • 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。
    • 7. 发明申请
    • DROPLET ACTUATOR LOADING AND TARGET CONCENTRATION
    • 滴落执行器负载和目标浓度
    • WO2008118831A8
    • 2008-10-02
    • PCT/US2008/057963
    • 2008-03-24
    • ADVANCED LIQUID LOGIC, INC.PAMULA, VamseePOLLACK, MichaelSRINIVASAN, Vijay
    • PAMULA, VamseePOLLACK, MichaelSRINIVASAN, Vijay
    • B01L3/00G01N33/543
    • A droplet actuator and method of providing a droplet comprising an target substance on the droplet actuator, and including discrete flow and continuous flow functionality. Discrete flow function is controlled by electrodes arranged for conducting droplet operations on a substrate surface. The continuous flow function includes a fluid path (101) arranged for flowing a fluid therethrough. The discrete flow and continuous flow functions may be separated by a barrier (103), including a second fluid path through the barrier. The continuous flow function may include a captux-e surface (501) comprising a component having an affinity for the target substance. Methods of the invention may include flowing a fluid comprising the target substance through the fluid path (101); capturing the target substance on the capture surface (501); and forming a droplet in the discrete flow region via the second fluid path and the electrodes comprising the captured target substance.
    • 液滴致动器和在液滴致动器上提供包含目标物质的液滴的方法,并且包括离散流动和连续流动功能。 离散流动功能由布置为在基板表面上进行液滴操作的电极控制。 连续流动功能包括布置用于使流体流过的流体路径(101)。 离散流动和连续流动功能可以通过屏障(103)分开,屏障(103)包括穿过屏障的第二流体路径。 连续流动功能可以包括包含对目标物质具有亲和力的组分的捕获表面(501)。 本发明的方法可以包括使包含目标物质的流体流过流体路径(101); 捕获捕获表面(501)上的目标物质; 并且经由第二流体路径和包括捕获的目标物质的电极在离散流动区域中形成液滴。