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    Composite waveguide for solid phase binding assays
    2.
    发明授权
    Composite waveguide for solid phase binding assays 失效
    用于固相结合测定的复合波导

    公开(公告)号：US06911344B1

    公开(公告)日：2005-06-28

    申请号：US09185318

    申请日：1998-11-03

    申请人： W. Monty Reichert ,  James N. Herron ,  Douglas A. Christensen ,  Hsu-Kun Wang ,  Jacob D. Durtschi

    发明人： W. Monty Reichert ,  James N. Herron ,  Douglas A. Christensen ,  Hsu-Kun Wang ,  Jacob D. Durtschi

    IPC分类号： G01N21/77 ,  G01N33/543 ,  G02B6/12 ,  G02B6/34

    CPC分类号： G01N21/7703 ,  G01N21/05 ,  G01N21/274 ,  G01N21/648 ,  G01N33/543 ,  G01N2021/058 ,  G01N2021/7709 ,  G01N2021/7763 ,  G01N2021/7786 ,  G02B6/34 ,  G02B2006/12038 ,  G02B2006/12107 ,  G02B2006/12173 ,  G02B2006/12176 ,  Y10S435/808 ,  Y10S436/805

    摘要： A step-gradient composite waveguide for evanescent sensing in fluorescent binding assays comprises a thick substrate layer having one or more thin film waveguide channels deposited thereon. In one embodiment, the substrate is silicon dioxide and the thin film is silicon oxynitride. Specific binding molecules having the property of binding with specificity to an analyte are immobilized on the surface of the thin film channels. In preferred embodiments, the composite waveguide further includes light input coupling means integrally adapted to the thin film channels. Such light coupling means can be a grating etched into the substrate prior to deposition of the thin film, or a waveguide coupler affixed to the upper surface of the thin film. The waveguide coupler has a thick input waveguide of high refractive index which receives the laser light through one end and propagates it by total internal reflection. The propagated light is then coupled evanescently into the thin film waveguide across a spacer layer of precise thickness and having an index of refraction lower than either the input waveguide or the thin-film waveguide. The composite waveguide can be constructed by plasma vapor deposition of silicon oxynitride onto the silicon dioxide substrate, masking the channel waveguides with a photoresist, and using reactive ion etching to expose the substrate in the unmasked regions.

    摘要翻译： 在荧光结合测定中用于ev逝感测的梯度梯度复合波导包括其上沉积有一个或多个薄膜波导通道的厚基底层。 在一个实施例中，衬底是二氧化硅，薄膜是氮氧化硅。 具有与分析物特异性结合的特性的特异性结合分子被固定在薄膜通道的表面上。 在优选实施例中，复合波导还包括与薄膜通道整体适配的光输入耦合装置。 这种光耦合装置可以是在沉积薄膜之前蚀刻到基板中的光栅，或者固定到薄膜的上表面的波导耦合器。 波导耦合器具有高折射率的厚输入波导，其通过一端接收激光并通过全内反射传播。 然后将传播的光ev逝地穿过精确厚度的间隔层并且具有低于输入波导或薄膜波导的折射率的薄膜波导。 复合波导可以通过将氧氮化硅等离子体气相沉积到二氧化硅衬底上，用光致抗蚀剂掩蔽通道波导，并且使用反应离子蚀刻来暴露未掩模区域中的衬底。

    Integrated optic waveguide immunosensor
    5.
    发明授权
    Integrated optic waveguide immunosensor 失效

    公开(公告)号：US5814565A

    公开(公告)日：1998-09-29

    申请号：US393450

    申请日：1995-02-23

    申请人： W. Monty Reichert ,  James N. Herron ,  Douglas A. Christensen ,  Hsu-Kun Wang

    发明人： W. Monty Reichert ,  James N. Herron ,  Douglas A. Christensen ,  Hsu-Kun Wang

    IPC分类号： G01N21/64 ,  G01N21/05 ,  G01N21/55 ,  G01N21/77 ,  G01N33/543 ,  G01N33/53 ,  G01N21/17

    CPC分类号： G01N33/54373 ,  G01N21/648 ,  G01N21/7703 ,  G01N21/05

    摘要： A step-gradient composite waveguide for evanescent sensing in fluorescent binding assays comprises a thick substrate layer having one or more thin film waveguide channels deposited thereon. In one embodiment, the substrate is silicon dioxide and the thin film is silicon oxynitride. Specific binding molecules having the property of binding with specificity to an analyte are immobilized on the surface of the thin film channels. In preferred embodiments, the composite waveguide further includes light input coupling means integrally adapted to the thin film channels. Such light coupling means can be a grating etched into the substrate prior to deposition of the thin film, or a waveguide coupler affixed to the upper surface of the thin film. The waveguide coupler has a thick input waveguide of high refractive index which receives the laser light through one end and propagates it by total internal reflection. The propagated light is then coupled evanescently into the thin film waveguide across a spacer layer of precise thickness and having an index of refraction lower than either the input waveguide or the thin-film waveguide. The composite waveguide can be constructed by plasma vapor deposition of silicon oxynitride onto the silicon dioxide substrate, masking the channel waveguides with a photoresist, and using reactive ion etching to expose the substrate in the unmasked regions.

    Oscillation apparatus and methods for multi-analyte homogeneous fluoro-immunoassays
    6.
    发明授权
    Oscillation apparatus and methods for multi-analyte homogeneous fluoro-immunoassays 失效
    用于多分析物均匀荧光免疫测定的振荡装置和方法

    公开(公告)号：US06242267B1

    公开(公告)日：2001-06-05

    申请号：US09142946

    申请日：1998-09-18

    申请人： James N. Herron ,  Douglas A. Christensen ,  Scott D. Miles

    发明人： James N. Herron ,  Douglas A. Christensen ,  Scott D. Miles

    IPC分类号： G01N33552

    CPC分类号： G01N33/54386 ,  G01N33/54373 ,  Y10S435/808 ,  Y10S436/807

    摘要： An apparatus and method for rapidly analyzing samples for analytes of interest by an homogeneous immunofluorescence assay. The apparatus includes a sample test cartridge having a high control sample section, a low control sample section, and at least one test sample section. Each of these sections contain at least one pre-loaded reagent housed in a well within the cartridge wherein the low control sample section contains a known low amount of an analyte of interest and the high control sample section contains a known high amount of an analyte of interest. The cartridge includes a biosensor comprising a planar waveguide having first and second parallel plane surfaces and an edge extending between them, the edge having a receiving region for receiving a light beam. Each of the high control sample section, the low control sample section, and the test sample control sections have a well which includes a waveguide surface, wherein the contents of each section contacts capture molecules immobilized on the waveguide surface. The capture molecules are configured to specifically bind a chosen analyte and fluoresce when interacting with light passing through the waveguide surface. The concentration of said analyte of interest in said sample fluid is determined by a comparison of intensities of fluorescence of between said capture molecule areas of said sample capture molecule well, said low control capture molecule well, and said high control capture molecule well.

    摘要翻译： 用于通过均匀免疫荧光测定快速分析感兴趣的分析物的样品的装置和方法。 该装置包括具有高控制样品部分，低对照样品部分和至少一个测试样品部分的样品测试盒。 这些部分中的每一个包含至少一个预先加载的试剂，其容纳在筒内的孔中，其中低对照样品部分含有已知的低量感兴趣的分析物，并且高对照样品部分含有已知的大量分析物 利益。 所述盒包括生物传感器，所述生物传感器包括具有第一和第二平行平面的平面波导和在它们之间延伸的边缘，所述边缘具有用于接收光束的接收区域。 高控制采样部分，低控制样品部分和测试样品控制部分中的每一个具有包括波导表面的阱，其中每个部分的内容物接触固定在波导表面上的捕获分子。 捕获分子被配置为特异性地结合所选择的分析物并且当与通过波导表面的光相互作用时发出荧光。 通过比较所述样品捕获分子阱的所述捕获分子区域，所述低对照捕获分子阱和所述高对照捕获分子阱之间的荧光强度来确定所述样品流体中所述目标分析物的浓度。

    Apparatus and methods for multi-analyte homogeneous fluoro-immunoassays
    9.
    发明授权
    Apparatus and methods for multi-analyte homogeneous fluoro-immunoassays 有权
    多分析物均匀荧光免疫测定的装置和方法

    公开(公告)号：US06316274B1

    公开(公告)日：2001-11-13

    申请号：US09516307

    申请日：2000-03-01

    申请人： James N. Herron ,  Douglas A. Christensen ,  Hsu-Kun Wang ,  Karin Caldwell ,  Vera Janatová ,  Shao-Chie Huang

    发明人： James N. Herron ,  Douglas A. Christensen ,  Hsu-Kun Wang ,  Karin Caldwell ,  Vera Janatová ,  Shao-Chie Huang

    IPC分类号： G01N33543

    CPC分类号： G01N21/6452 ,  C07C281/02 ,  C08G65/329 ,  G01N21/6428 ,  G01N21/648 ,  G01N21/7703 ,  G01N33/54353 ,  G01N33/54373 ,  G01N33/54393 ,  Y10S435/808 ,  Y10S436/805 ,  Y10S436/807

    摘要： Methods and apparatus for evanescent light fluoroimmunoassays are disclosed. The apparatus employs a planar waveguide with an integral semi-cylindrical lens, and has multi-analyte features and calibration features, along with improved evanescent field intensity. A preferred embodiment of the biosensor and assay method have patches of capture molecules each specific for a different analyte disposed adjacent within a single reservoir. The capture molecules are immobilized to the patches on the waveguide surface by site-specific coupling of thiol groups on the capture molecules to photo-affinity crosslinkers which in turn are coupled to the waveguide surface or to a non-specific-binding-resistant coating on the surface. The patches of different antibodies are produced by selectively irradiating a portion of the waveguide surface during the process of coupling the photo-affinity crosslinkers the selective irradiation involving a mask, a laser light source, or the like.

    摘要翻译： 公开了消逝光荧光免疫测定法的方法和装置。 该装置采用具有整体半柱面透镜的平面波导，并具有多分析物特征和校准特征，以及改善的消逝场强度。 生物传感器和测定方法的优选实施方案具有每个针对不同分析物特异性的捕获分子的斑块，其邻近设置在单个贮存器内。 捕获分子通过捕获分子上的硫醇基团的特异性偶联而固定在波导表面上的贴片上，而光致亲和性交联剂又连接到波导表面或非特异性结合抗性涂层上 表面。 通过在涉及光亲和性交联剂的涉及掩模，激光光源等的选择性照射的过程中选择性地照射波导表面的一部分来产生不同抗体的斑块。