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    • 2. 发明申请
    • FLUORESCENSE-DETECTED ASSAYS ON MICROFLUIDIC CHIPS
    • 荧光检测对微流感检测的荧光检测
    • US20170016827A1
    • 2017-01-19
    • US15123965
    • 2015-03-05
    • ONE DROP DIAGNOSTICS SÀRL
    • Luc GervaisJörg ZIEGLERNicolas DESCHARMES
    • G01N21/64G01N33/543B01L3/00G01N21/77
    • G01N21/648B01L3/502715B01L2300/0627B01L2300/0654B01L2300/0816B01L2300/0877B01L2300/0887G01N21/6428G01N21/7703G01N21/7746G01N33/54306G01N2021/6439G01N2021/7736G01N2021/7786G01N2201/08
    • An assay unit for carrying-out fluorescence-detected assays on physiological samples comprises a microfluidic chip with a microfluidic system to convey a physiological sample or analyte solution through one or more microfluidic channels arranged on the chip, and a photonic system with two or more rectangular waveguide structures arranged on the chip to guide excitation light in the near IR, visible, or near UV range. The microfluidic channels and the waveguide structures cross each other at a detection site. In an assay area, where a certain microfluidic channel and a certain waveguide structure cross each other, one or more lateral surfaces of the core of the waveguide structure at least partially face an inner volume of the microfluidic channel, such that an evanescent field of light guided within the waveguide structure overlaps with a certain part of the inner volume of the microfluidic channel. In the assay areas, one or more capture spots are located on the surface of the waveguide core, the capture spots comprising a coating of capture antibodies of the immunoassay, immobilized on said core surface.
    • 用于在生理样品上进行荧光检测测定的测定单元包括具有微流体系统的微流体芯片,以通过布置在芯片上的一个或多个微流体通道传送生理样品或分析物溶液,以及具有两个或更多个矩形的光子系统 波导结构布置在芯片上以引导近红外,可见或近紫外范围的激发光。 微流体通道和波导结构在检测位置彼此交叉。 在测定区域中,其中某个微流体通道和某一波导结构彼此交叉,波导结构的芯的一个或多个侧表面至少部分地面对微流体通道的内部体积,使得消逝的光场 在波导结构内引导与微流体通道的内部体积的某一部分重叠。 在测定区域中,一个或多个捕获点位于波导芯的表面上,捕获点包含固定在所述芯表面上的免疫测定的捕获抗体的包被。