Microfluidic devices having isolation pens and methods of testing biological micro-objects with same

    公开(公告)号:US11565259B2

    公开(公告)日:2023-01-31

    申请号:US16683798

    申请日:2019-11-14

    Abstract: A microfluidic device can comprise at least one swept region that is fluidically connected to unswept regions. The fluidic connections between the swept region and the unswept regions can enable diffusion but substantially no flow of media between the swept region and the unswept regions. The capability of biological micro-objects to produce an analyte of interest can be assayed in such a microfluidic device. Biological micro-objects in sample material loaded into a microfluidic device can be selected for particular characteristics and disposed into unswept regions. The sample material can then be flowed out of the swept region and an assay material flowed into the swept region. Flows of medium in the swept region do not substantially affect the biological micro-objects in the unswept regions, but any analyte of interest produced by a biological micro-object can diffuse from an unswept region into the swept region, where the analyte can react with the assay material to produce a localized detectable reaction. Any such detected reactions can be analyzed to determine which, if any, of the biological micro-objects are producers of the analyte of interest.

    LATERAL/VERTICAL TRANSISTOR STRUCTURES AND PROCESS OF MAKING AND USING SAME
    37.
    发明申请
    LATERAL/VERTICAL TRANSISTOR STRUCTURES AND PROCESS OF MAKING AND USING SAME 有权
    横向/垂直晶体管结构及其制造和使用过程

    公开(公告)号:US20160184821A1

    公开(公告)日:2016-06-30

    申请号:US14961215

    申请日:2015-12-07

    Abstract: A microfluidic device can include a base an outer surface of which forms one or more enclosures for containing a fluidic medium. The base can include an array of individually controllable transistor structures each of which can comprise both a lateral transistor and a vertical transistor. The transistor structures can be light activated, and the lateral and vertical transistors can thus be photo transistors. Each transistor structure can be activated to create a temporary electrical connection from a region of the outer surface of the base (and thus fluidic medium in the enclosure) to a common electrical conductor. The temporary electrical connection can induce a localized electrokinetic force generally at the region, which can be sufficiently strong to move a nearby micro-object in the enclosure.

    Abstract translation: 微流体装置可以包括底部,其外表面形成用于容纳流体介质的一个或多个外壳。 基极可以包括独立可控晶体管结构的阵列,其中每一个可以包括横向晶体管和垂直晶体管。 晶体管结构可以被光激活,并且横向和垂直晶体管因此可以是光电晶体管。 每个晶体管结构可以被激活以从基底的外表面(并且因此在外壳中的流体介质)的区域到公共电导体产生临时电连接。 临时电连接可以通常在该区域处引起局部电动力,其可以足够强以移动附近的微物体。

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