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    • 5. 发明申请
    • MICROFLUIDIC DETECTOR
    • 微流体检测器
    • WO2008060449A2
    • 2008-05-22
    • PCT/US2007023595
    • 2007-11-09
    • HARVARD COLLEGEBUTTE MANISH JWONG AMY PSHARPE ARLENE HWHITESIDES GEORGE M
    • BUTTE MANISH JWONG AMY PSHARPE ARLENE HWHITESIDES GEORGE M
    • G01N33/543G01N33/569
    • G01N33/56972G01N33/54373G01N2333/16G01N2333/70503G01N2800/24
    • Articles and methods for determining an analyte indicative of a disease condition are provided. In some embodiments, articles and methods described herein can be used for determining a presence, qualitatively or quantitatively, of a component, such as a particular type of cell, in a fluid sample. In one particular embodiment, a low-cost microfluidic system for rapid detection of T cells is provided. The microfluidic system may use immobilized antibodies and adhesion molecules in a channel to capture T cells from a fluid sample such as a small volume of blood. The captured T cells may be labeled with a metal colloid (e.g., gold nanoparticles) using an antibody specific for the T Cell Receptor (TCR), and metallic silver can be catalytically precipitated onto the cells. The number of T cells captured can be counted and may indicate a disease condition of a patient such as severe combined immune deficiency or human immunodeficiency virus.
    • 提供了用于确定指示疾病状况的分析物的文章和方法。 在一些实施方案中,本文描述的制品和方法可以用于确定流体样品中组分(例如特定类型的细胞)的定性或定量存在。 在一个特定实施例中,提供了用于快速检测T细胞的低成本微流体系统。 微流体系统可以在通道中使用固定的抗体和粘附分子以从流体样本(例如小体积血液)捕获T细胞。 捕获的T细胞可以使用对T细胞受体(TCR)特异性的抗体用金属胶体(例如金纳米颗粒)标记,并且可以将金属银催化沉淀到细胞上。 捕获的T细胞的数量可以被计数,并且可以指示患者的疾病状况,例如严重的联合免疫缺陷或人类免疫缺陷病毒。