OPTO-FLUIDIC NANOPARTICLE DETECTION APPARATUS
    2.
    发明申请
    OPTO-FLUIDIC NANOPARTICLE DETECTION APPARATUS 有权
    OPTO-FLUIDIC NANOPARTICLE检测装置

    公开(公告)号:US20110085166A1

    公开(公告)日:2011-04-14

    申请号:US12920262

    申请日:2009-03-02

    IPC分类号: G01N21/00 B82Y20/00

    摘要: Provided herein are new methods and apparatus for quantitative measurement and analysis of particles, including new apparatus systems to process and detect nanoparticles in suspension. By focusing a laser beam at the center of a reservoir, nanoparticles are concentrated by optical energy, and fluorescent intensity at the focal point of the laser is measured to quantify particle concentration in the reservoir. The techniques may be applied to the analysis of suspensions of nanoparticles, including natural particles (e.g., microorganisms including whole viruses, bacteria, animal cells, and proteins) and synthetic particles (e.g., colloidal latexes, paints, pigments, and metallic or semiconductor nanoparticles) for medical and industrial applications, among others.

    摘要翻译: 本文提供了用于定量测量和分析颗粒的新方法和装置,包括用于处理和检测悬浮液中的纳米颗粒的新装置系统。 通过将激光束聚焦在储存器的中心,纳米颗粒被光能集中,并且测量激光焦点处的荧光强度以量化储层中的颗粒浓度。 这些技术可以应用于纳米颗粒悬浮液的分析,包括天然颗粒(例如,包括全病毒,细菌,动物细胞和蛋白质的微生物)和合成颗粒(例如胶体胶乳,油漆,颜料和金属或半导体纳米颗粒 )用于医疗和工业应用等。

    Opto-fluidic nanoparticle detection apparatus
    4.
    发明授权
    Opto-fluidic nanoparticle detection apparatus 有权
    光流体纳米粒子检测装置

    公开(公告)号:US08537356B2

    公开(公告)日:2013-09-17

    申请号:US12920262

    申请日:2009-03-02

    IPC分类号: G01N21/00

    摘要: Provided herein are new methods and apparatus for quantitative measurement and analysis of particles, including new apparatus systems to process and detect nanoparticles in suspension. By focusing a laser beam at the center of a reservoir, nanoparticles are concentrated by optical energy, and fluorescent intensity at the focal point of the laser is measured to quantify particle concentration in the reservoir. The techniques may be applied to the analysis of suspensions of nanoparticles, including natural particles (e.g., microorganisms including whole viruses, bacteria, animal cells, and proteins) and synthetic particles (e.g., colloidal latexes, paints, pigments, and metallic or semiconductor nanoparticles) for medical and industrial applications, among others.

    摘要翻译: 本文提供了用于定量测量和分析颗粒的新方法和装置,包括用于处理和检测悬浮液中的纳米颗粒的新装置系统。 通过将激光束聚焦在储存器的中心,纳米颗粒被光能集中,并且测量激光焦点处的荧光强度以量化储层中的颗粒浓度。 这些技术可以应用于纳米颗粒悬浮液的分析,包括天然颗粒(例如,包括全病毒,细菌,动物细胞和蛋白质的微生物)和合成颗粒(例如胶体胶乳,油漆,颜料和金属或半导体纳米颗粒 )用于医疗和工业应用等。

    DEVICES AND METHODS FOR DETECTING CELLS AND OTHER ANALYTES
    5.
    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。

    COUNTING PARTICLES USING AN ELECTRICAL DIFFERENTIAL COUNTER
    7.
    发明申请
    COUNTING PARTICLES USING AN ELECTRICAL DIFFERENTIAL COUNTER 有权
    使用电气差分计数器计数颗粒

    公开(公告)号:US20130295588A1

    公开(公告)日:2013-11-07

    申请号:US13884580

    申请日:2011-11-09

    IPC分类号: G01N27/02

    摘要: This disclosure relates to methods and devices to count particles of interest, such as cells. The methods include obtaining a fluid sample that may contain particles of interest; counting all types of particles in a portion of the sample using a first electrical differential counter to generate a first total; removing any particles of interest from the portion of the fluid sample; counting any particles remaining in the portion of the fluid sample using a second electrical differential counter after the particles of interest are removed to generate a second total; and calculating a number of particles of interest originally in the fluid sample by subtracting the second total from the first total, wherein the difference is the number of particles of interest in the sample. These methods and related devices can be used, for example, to produce a robust, inexpensive diagnostic kit for CD4+ T cell counting in whole blood samples.

    摘要翻译: 本公开涉及计算感兴趣的颗粒例如细胞的方法和装置。 所述方法包括获得可含有感兴趣的颗粒的流体样品; 使用第一电差分计数器对样品的一部分中的所有类型的颗粒计数以产生第一总数; 从流体样品的一部分去除任何感兴趣的颗粒; 在除去感兴趣的颗粒之后,使用第二电差速器计数器在流体样品的部分中剩余的任何颗粒计数以产生第二总数; 以及通过从第一个总计中减去第二个总计来计算最初在流体样品中的感兴趣的颗粒数,其中差值是样品中的感兴趣的颗粒数。 这些方法和相关装置可用于例如在全血样品中产生用于CD4 + T细胞计数的稳健且廉价的诊断试剂盒。

    Devices and methods for detecting cells and other analytes
    9.
    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。