Microfluidic Devices Having Isolation Pens and Methods of Testing Biological Micro-Objects with Same

    公开(公告)号:US20200230601A1

    公开(公告)日:2020-07-23

    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.

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

    公开(公告)号:US10646871B2

    公开(公告)日:2020-05-12

    申请号:US15989549

    申请日:2018-05-25

    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.

    Micro-Fluidic Devices for Assaying Biological Activity

    公开(公告)号:US20200078788A1

    公开(公告)日:2020-03-12

    申请号:US16509166

    申请日:2019-07-11

    Abstract: Biological activity in holding pens in a micro-fluidic device can be assayed by placing in the holding pens capture objects that bind a particular material of interest produced by the biological activity. The biological material of interest that binds to each capture object can then be assessed, either in the micro-fluidic device or after exporting the capture object from the micro-fluidic device. The assessment can be utilized to characterize the biological activity in each holding pen. The biological activity can be production of the biological material of interest. Thus, the biological activity can correspond to or arise from one or more biological cells. Biological cells within a holding pen can be clonal cell colonies. The biological activity of each clonal cell colony can be assayed while maintaining the clonal status of each colony.

    Isolating Microfluidic Structures and Trapping Bubbles
    50.
    发明申请
    Isolating Microfluidic Structures and Trapping Bubbles 审中-公开
    隔离微流体结构和捕获气泡

    公开(公告)号:US20150352547A1

    公开(公告)日:2015-12-10

    申请号:US14732682

    申请日:2015-06-06

    Abstract: Some configurations of a microfluidic apparatus can comprise a fluidic circuit of interconnected fluidic structures into which a plurality of different media can be introduced or extracted. A variety of operations can be performed with the different media including isolating with a second medium one or more of the fluidic structures that is filled partially or fully with a first medium. Discrete volumes of a medium can be moved through the isolating second medium to deliver materials or micro-objects to or remove micro-objects or materials from a fluidic structure that is otherwise isolated by the second medium. Some configurations of a microfluidic apparatuses can isolate microfluidic structures in a microfluidic apparatus using flow rates or blocking structures, and some configurations can manage bubbles in fluidic structures.

    Abstract translation: 微流体装置的一些构造可以包括互连流体结构的流体回路,多个不同介质可以被引入或提取到流体结构中。 可以使用不同的介质进行各种操作,包括用第二介质隔离一种或多种用第一介质部分或完全填充的流体结构。 介质的离散体积可以移动通过隔离的第二介质,以将材料或微物体输送到或从其被第二介质分离的流体结构中去除微物体或材料。 微流体装置的一些构造可以使用流速或阻塞结构隔离微流体装置中的微流体结构,并且一些配置可以管理流体结构中的气泡。

Patent Agency Ranking