Microfluidic droplet encapsulation
    1.
    发明授权
    Microfluidic droplet encapsulation 有权
    微流体液滴封装

    公开(公告)号:US09068181B2

    公开(公告)日:2015-06-30

    申请号:US12472346

    申请日:2009-05-26

    CPC分类号: C12N11/04

    摘要: Microfluidic devices and methods for the encapsulation of particles within liquid droplets are disclosed. The new methods and devices form 1-100 picoliter-size monodisperse droplets containing the particles, such as single cells, encapsulated in individual liquid droplets. The particles can be encapsulated in droplets of a fluid by passing a fluid containing the particles through a high aspect-ratio microchannel to order the particles in the fluid, followed by forming the fluid into droplets. The resulting fraction of the liquid droplets with a single particle (e.g., a cell) is higher than the corresponding fraction of single-particle liquid droplets predicted by Poisson statistics.

    摘要翻译: 公开了用于在液滴内包封颗粒的微流体装置和方法。 新的方法和装置形成1-100皮升大小的单分散液滴,其包含单个细胞的颗粒,包封在单个液滴中。 通过使含有颗粒的流体通过高纵横比的微通道将粒子封装在流体的液滴中,以使颗粒在流体中排列,然后将流体形成液滴。 所得到的具有单个颗粒(例如,电池)的液滴的部分高于由泊松统计预测的单颗粒液滴的相应部分。

    Devices and methods for detecting cells and other analytes
    2.
    发明授权
    Devices and methods for detecting cells and other analytes 有权
    用于检测细胞和其他分析物的装置和方法

    公开(公告)号:US08911957B2

    公开(公告)日:2014-12-16

    申请号:US12293046

    申请日:2007-03-15

    摘要: The invention features methods, devices, and kits for the isolation of analytes (e.g., a cell). A sample containing a desired analyte is introduced into a microfluidic device containing moieties that bind the desired analyte. A shear stress is applied that is great enough to prevent binding of undesired analytes and low enough to allow binding of the analyte of interest. Once bound, the desired analytes can be analyzed (e.g., counted). The invention also features methods for determining a shear stress for isolating a desired analyte.

    摘要翻译: 本发明的特征在于用于分离分析物(例如,细胞)的方法,装置和试剂盒。 将含有所需分析物的样品引入含有结合所需分析物的部分的微流体装置中。 施加的剪切应力足够大以防止不需要的分析物的结合,并且足够低以允许感兴趣的分析物的结合。 一旦结合,可以分析所需的分析物(例如,计数)。 本发明还具有确定用于分离所需分析物的剪切应力的方法。

    Microfluidic cell motility assay
    3.
    发明授权
    Microfluidic cell motility assay 有权
    微流体细胞运动性测定

    公开(公告)号:US08790891B2

    公开(公告)日:2014-07-29

    申请号:US13257464

    申请日:2010-03-19

    申请人: Daniel Irimia

    发明人: Daniel Irimia

    IPC分类号: C12Q1/04 C12Q1/02

    摘要: Certain isolated motile cells spontaneously migrate unidirectionally through a mechanically confined space, such as a microcapillary channel, in the absence of an external gradient (e.g., a chemical gradient). Assays and methods for detecting motile cells, and identifying chemical agents that inhibit cell migration, can include detecting the movement of motile cancer cells through a microcapillary channel.

    摘要翻译: 某些分离的运动细胞在不存在外部梯度(例如,化学梯度)的情况下,单向自发迁移通过机械限制的空间,例如微毛细管通道。 用于检测运动细胞的测定和方法以及鉴定抑制细胞迁移的化学试剂可以包括通过微毛细管通道检测运动性癌细胞的运动。

    MICROFLUIDIC DEVICES FOR ANALYZING CELL MOTILITY
    8.
    发明申请
    MICROFLUIDIC DEVICES FOR ANALYZING CELL MOTILITY 审中-公开
    用于分析细胞动力学的微流体装置

    公开(公告)号:US20120216601A1

    公开(公告)日:2012-08-30

    申请号:US13407596

    申请日:2012-02-28

    申请人: Daniel Irimia

    发明人: Daniel Irimia

    IPC分类号: G01N33/48 B65G53/00

    摘要: Methods, apparatus, and systems for analyzing the motility of motile cells, such as neutrophils, are described. The microfluidic devices described herein generally include a main channel and one or more side channels and can be used for causing migration of cells in response to a biochemical gradient. The main channel has an inlet and an outlet and can be sized to receive the cells. The side channels that branch from the main channel terminate in a closed end and are sized such that the cell migrates into and through the side channel in response to a concentration gradient established between the main channel and the interior of the side channels in which the biochemical stimulus is trapped after priming and loading.

    摘要翻译: 描述了分析运动细胞如嗜中性粒细胞的运动性的方法,装置和系统。 本文描述的微流体装置通常包括主通道和一个或多个侧通道,并且可用于响应生化梯度引起细胞迁移。 主通道具有入口和出口,并且可以设计成容纳接收单元。 从主通道分支的侧通道在封闭端终止,并且其尺寸使得小室响应于在主通道和侧通道内部之间建立的浓度梯度迁移进入并通过侧通道,其中生物化学 刺激在启动和加载后被困住。

    DEVICES AND METHODS FOR DETECTING CELLS AND OTHER ANALYTES
    10.
    发明申请
    DEVICES AND METHODS FOR DETECTING CELLS AND OTHER ANALYTES 有权
    用于检测细胞和其他分析物的装置和方法

    公开(公告)号:US20090298067A1

    公开(公告)日:2009-12-03

    申请号:US12293046

    申请日:2007-03-15

    摘要: The invention features methods, devices, and kits for the isolation of analytes (e.g., a cell). A sample containing a desired analyte is introduced into a microfluidic device containing moieties that bind the desired analyte. A shear stress is applied that is great enough to prevent binding of undesired analytes and low enough to allow binding of the analyte of interest. Once bound, the desired analytes can be analyzed (e.g., counted). The invention also features methods for determining a shear stress for isolating a desired analyte.

    摘要翻译: 本发明的特征在于用于分离分析物(例如,细胞)的方法,装置和试剂盒。 将含有所需分析物的样品引入含有结合所需分析物的部分的微流体装置中。 施加的剪切应力足够大以防止不需要的分析物的结合,并且足够低以允许感兴趣的分析物的结合。 一旦结合,可以分析所需的分析物(例如,计数)。 本发明还具有确定用于分离所需分析物的剪切应力的方法。