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    • 1. 发明授权
    • Immunoassay element
    • 免疫测定元件
    • US07820402B2
    • 2010-10-26
    • US11230127
    • 2005-09-19
    • Yoshiki SakainoHitomi ItoToshihiro MoriOsamu SeshimotoToshihisa ItoYoshikazu Amano
    • Yoshiki SakainoHitomi ItoToshihiro MoriOsamu SeshimotoToshihisa ItoYoshikazu Amano
    • G01N33/53G01N33/543
    • G01N33/54386G01N2333/924Y10S435/966Y10S435/969Y10S435/97Y10S436/807Y10S436/81
    • The immunoassay element for quantitatively analyzing an antigen by determining the change in enzymatic activity of an enzyme-labelled antigen or antibody caused by an immunological reaction. The immunoassay element comprises a substrate layer containing a non-diffusible substrate which forms a diffusible material in the presence of the labelling enzyme, and a reagent layer containing a fragmenting enzyme for further fragmenting the diffusible material into a lower molecular weight product. As the non-diffusible substrate, a substrate capable of reacting solely with the labelling enzyme and incapable of reacting the fragmenting enzyme is utilized. When an endo-active glucosidase is used as the labelling enzyme, and an exo-active glucosidase is used the fragmenting enzyme in the reagent layer, the non-diffusible substrate of the substrate layer is preferred to be an endo type selectively reactive substrate, which means a substrate having a reactivity specific to endo-active glucosidase. Highly sensitive assay is realized with high accuracy and high reproducibility and good storage stability.
    • 用于通过确定由免疫反应引起的酶标记的抗原或抗体的酶活性的变化来定量分析抗原的免疫测定元件。 免疫测定元件包括含有在标记酶存在下形成可扩散材料的不扩散基底的底物层和含有用于进一步将可扩散材料分解成较低分子量产物的碎裂酶的试剂层。 作为非扩散性底物,使用能够仅与标记酶反应并且不能使片段化酶反应的底物。 当使用内源活性葡糖苷酶作为标记酶,并且使用外源活性葡糖苷酶时,试剂层中的断裂酶,底物层的非扩散性基质优选为内型选择性反应性底物,其中 是指具有对内源性葡糖苷酶特异性的反应性的底物。 高精度,高重现性和良好的储存稳定性实现了高灵敏度测定。
    • 3. 发明申请
    • Immunoassay element
    • 免疫测定元件
    • US20050084953A1
    • 2005-04-21
    • US10961459
    • 2004-10-07
    • Yoshiki SakainoHitomi ItoToshihiro MoriOsamu SeshimotoToshihisa ItoYoshikazu Amano
    • Yoshiki SakainoHitomi ItoToshihiro MoriOsamu SeshimotoToshihisa ItoYoshikazu Amano
    • G01N33/543G01N33/53
    • G01N33/54386G01N2333/924Y10S435/966Y10S435/969Y10S435/97Y10S436/807Y10S436/81
    • The immunoassay element for quantitatively analyzing an antigen by determining the change in enzymatic activity of an enzyme-labelled antigen or antibody caused by an immunological reaction. The immunoassay element comprises a substrate layer containing a non-diffusible substrate which forms a diffusible material in the presence of the labelling enzyme, and a reagent layer containing a fragmenting enzyme for further fragmenting the diffusible material into a lower molecular weight product. As the non-diffusible substrate, a substrate capable of reacting solely with the lebelling enzyme and incapable of reacting the fragmenting enzyme is utilized. When an endo-active glucosidase is used as the labelling enzyme, and an exo-active glucosidase is used the fragmenting enzyme in the reagent layer, the non-diffusible substrate of the substrate layer is preferred to be an endo type selectively reactive substrate, which means a substrate having a reactivity specific to endo-active glucosidase. Highly sensitive assay is realized with high accuracy and high reproducibility and good storage stability.
    • 用于通过确定由免疫反应引起的酶标记的抗原或抗体的酶活性的变化来定量分析抗原的免疫测定元件。 免疫测定元件包括含有在标记酶存在下形成可扩散材料的不扩散基底的底物层和含有用于进一步将可扩散材料分解成较低分子量产物的碎裂酶的试剂层。 作为非扩散性底物,可以使用能够仅与前体酶反应并且不能使片段化酶反应的底物。 当使用内源活性葡糖苷酶作为标记酶,并且使用外源活性葡糖苷酶时,试剂层中的断裂酶,底物层的非扩散性基质优选为内型选择性反应性底物,其中 是指具有对内源性葡糖苷酶特异性的反应性的底物。 高精度,高重现性和良好的储存稳定性实现了高灵敏度测定。
    • 4. 发明申请
    • Multilayer analysis element
    • 多层分析单元
    • US20050186110A1
    • 2005-08-25
    • US11060777
    • 2005-02-18
    • Kentaro NakamuraKazuya KawasakiToshihisa ItoYoshiki SakainoOsamu Seshimoto
    • Kentaro NakamuraKazuya KawasakiToshihisa ItoYoshiki SakainoOsamu Seshimoto
    • G01N31/22
    • G01N31/22
    • It is an object of the invention to provide a multilayer analysis element with small intra-lot and lot-to-lot differences that has high measurement accuracy and which is small in size. The present invention provides a multilayer analysis element for the analysis of a liquid sample, comprising a water impermeable planar support on one side of which at least one functional layer and at least one porous liquid sample spreading layer of non-fibrous porous film are integrally laminated in the mentioned order, wherein said spreading layer comprises a non-fibrous porous film such that, when a liquid sample containing a target substance to be measured is caused to become attached to the surface of said liquid sample spreading layer, where said liquid sample is spread and dispersed, 30% or more of said target substance to be measured can be transferred to the at least one functional layer below said liquid sample spreading layer.
    • 本发明的目的是提供一种具有很小的批量间和批间差异的多层分析元件,其具有高的测量精度并且尺寸小。 本发明提供了一种用于分析液体样品的多层分析元件,其包括不透水平面支撑体,其一侧上至少一个功能层和至少一个非纤维多孔膜的多孔液体样品铺展层整体层压 其中所述扩散层包括非纤维多孔膜,使得当将含有待测物体的液体样品附着在所述液体样品扩散层的表面上时,其中所述液体样品为 扩散和分散,所述待测量的所述目标物质的30%以上可以转移到所述液体样品扩散层下方的至少一个功能层。
    • 6. 发明申请
    • Multilayer analysis element
    • 多层分析单元
    • US20050186109A1
    • 2005-08-25
    • US11060775
    • 2005-02-18
    • Kentaro NakamuraKazuya KawasakiYoshiki SakainoToshihisa ItoOsamu Seshimoto
    • Kentaro NakamuraKazuya KawasakiYoshiki SakainoToshihisa ItoOsamu Seshimoto
    • G01N31/22
    • G01N31/22
    • An object of the invention to provide a multilayer analysis element with small intra-lot and lot-to-lot differences that has high measurement accuracy and which is small in size. The present invention provides a multilayer analysis element for the analysis of a liquid sample, comprising a water impermeable planar support on one side of which at least one functional layer and at least one porous liquid sample spreading layer of non-fibrous porous film are integrally laminated in the mentioned order, wherein the arithmetic mean deviation of the profile (Ra) of a contact surface of the at least one functional layer that is in contact with said porous liquid sample spreading layer of said non-fibrous porous film is 1 μm or less and/or the ten-point height of irregularities (Rz) of said contact surface is 8 μm or less.
    • 本发明的目的是提供一种具有很高的测量精度并且尺寸小的多批次间差异小的多层分析元件。 本发明提供了一种用于分析液体样品的多层分析元件,其包括不透水平面支撑体,其一侧上至少一个功能层和至少一个非纤维多孔膜的多孔液体样品铺展层整体层压 其中与所述非纤维多孔膜的所述多孔液体样品扩散层接触的所述至少一个功能层的接触表面的轮廓(Ra)的算术平均偏差为1μm以下 和/或所述接触表面的十点高度的不规则(Rz)为8μm或更小。
    • 9. 发明申请
    • Nucleic Acid-Adsorbing Porous Membrane for Separating and Purifying Nucleic Acid and Apparatus for Separating and Purifying Nucleic Acid
    • 用于分离和纯化核酸的核酸吸附多孔膜和用于分离和纯化核酸的装置
    • US20070221563A1
    • 2007-09-27
    • US10576418
    • 2004-10-20
    • Yoshiki SakainoYoshihiko MakinoToshihiro Mori
    • Yoshiki SakainoYoshihiko MakinoToshihiro Mori
    • B01D63/00
    • C12N15/1017B01L3/502B01L9/06B01L2200/0631B01L2300/0681B01L2400/0487G01N1/34G01N1/405
    • To provide a nucleic acid-adsorbing porous membrane which has an excellent separating ability, which provides a good washing efficiency, which permits convenient and expeditious procedures, which is adapted for automation and reduction in size, which can be mass produced with substantially identical separating capability, and which is adapted for a method of separating and purifying nucleic acids and to provide an apparatus using the same, a nucleic acid-adsorbing porous membrane for separating and purifying a nucleic acid, comprises a nucleic acid-adsorbing solid phase for use in a method for separating and purifying the nucleic acid, the solid phase adsorbing the nucleic acid, the method comprising the steps of: (1) adsorbing the nucleic acid to the solid phase by allowing a sample solution containing the nucleic acid to come into contact with the nucleic acid-adsorbing solid phase; (2) washing the solid phase by allowing a washing solution to come into contact with the solid phase, while the nucleic acid is adsorbed to the solid phase; and (3) desorbing the nucleic acid from the solid phase by allowing a recovering solution to come into contact with the solid phase.
    • 为了提供具有优异的分离能力的核酸吸附多孔膜,其提供了良好的洗涤效率,其允许方便和快速的程序,其适于自动化和尺寸减小,其可以基本相同的分离能力大量生产 并且其适用于分离和纯化核酸的方法,并提供使用该方法的装置,用于分离和纯化核酸的核酸吸附多孔膜包括用于在核酸中的核酸吸附固相 用于分离和纯化核酸的方法,所述固相吸附核酸,所述方法包括以下步骤:(1)通过使含有所述核酸的样品溶液与所述核酸接触来吸附所述核酸至所述固相 核酸吸附固相; (2)通过使洗涤液与固相接触来洗涤固相,同时核酸被吸附到固相上; 和(3)通过使回收溶液与固相接触从固相中解吸核酸。