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    • 1. 发明授权
    • Beta-galactosyl-umbelliferone-labeled hapten conjugates
    • β-半乳糖基 - 伞形酮标记的半抗原共轭物
    • US4404366A
    • 1983-09-13
    • US284137
    • 1981-07-16
    • Robert C. BoguslaskiJohn F. BurdRobert J. Carrico
    • Robert C. BoguslaskiJohn F. BurdRobert J. Carrico
    • C07H17/075G01N33/533G01N33/535C07H15/24
    • C07H17/075G01N33/533G01N33/535
    • An improved specific binding assay method and reagent for determining a ligand in a liquid medium employing, as an enzyme-cleavable substrate label, a residue having the formula:G--D--Rwherein G is a glycone, D is a dye indicator moiety, and R is a linking group through which the label residue is covalently bound to a binding component of a conventional binding assay system, such as the ligand, an analog thereof, or a specific binding partner thereof. The monitored characteristic of the label is the release of a detectable product, usually a fluorogen or chromogen, upon enzymatic cleavage of the glycosidic linkage between the glycone and the dye indicator moiety. The assay method may follow a homogeneous or heterogeneous format. The preferred glycone is a .beta.-galactosyl group and the preferred dye indicator moiety is an umbelliferone residue. The improved assay is particularly suited to the determination of haptens, such as drugs, and antigenic proteins and polypeptides, including antibodies, following a homogeneous competitive binding assay format.CROSS-REFERENCE TO RELATED APPLICATION
    • 用于测定液体培养基中配体的改进的特异性结合测定方法和试剂,其使用具有下式的GDR的残基作为可酶切的底物标记,其中G是糖苷,D是染料指示剂部分,R是 连接基团,其中标记残基与常规结合测定系统(例如配体,其类似物或其特异性结合配偶体)的结合成分共价结合。 标记物的监测特征是在酶切割糖基与染料指示剂部分之间的糖苷键时可释放的产物(通常为氟或色原体)的释放。 测定方法可以遵循均匀或异质的方式。 优选的糖酮是β-半乳糖基,优选的染料指示剂部分是伞形酮残基。 改进的测定法特别适合于均相竞争性结合测定形式之后测定半抗原,例如药物和抗原蛋白质和多肽,包括抗体。
    • 4. 发明授权
    • .beta.-Galactosyl-umbelliferone-labeled protein and polypeptide
conjugates
    • β-半乳糖基 - 伞形酮酮标记的蛋白质和多肽缀合物
    • US4331590A
    • 1982-05-25
    • US147339
    • 1980-05-06
    • Robert C. BocuslaskiJohn F. BurdRobert J. Carrico
    • Robert C. BocuslaskiJohn F. BurdRobert J. Carrico
    • C07H17/075G01N33/533G01N33/535G01N33/58A61K39/385A61K39/44C07G7/00
    • C07H17/075G01N33/533G01N33/535G01N33/582Y10S436/80Y10S436/805Y10S436/823Y10S530/806
    • An improved specific binding assay method and reagent for determining a ligand in a liquid medium employing, as an enzyme-cleavable substrate label, a residue having the formula:G-D-Rwherein G is a glycone, D is a dye indicator moiety, and R is a linking group through which the label residue is covalently bound to a binding component of a conventional binding assay system, such as the ligand, an analog thereof, or a specific binding partner thereof. The monitored characteristic of the label is the release of a detectable product, usually a fluorogen or chromogen, upon enzymatic cleavage of the glycosidic linkage between the glycone and the dye indicator moiety. The assay method may follow a homogeneous or heterogeneous format. The preferred glycone is a .beta.-galactosyl group and the preferred dye indicator moiety is an umbelliferone residue. The improved assay is particularly suited to the determination of haptens, such as drugs, and antigenic proteins and polypeptides, including antibodies, following a homogeneous competitive binding assay format.
    • 用于测定液体培养基中配体的改进的特异性结合测定方法和试剂,其使用具有下式的GDR的残基作为可酶切的底物标记,其中G是糖苷,D是染料指示剂部分,R是 连接基团,其中标记残基与常规结合测定系统(例如配体,其类似物或其特异性结合配偶体)的结合成分共价结合。 标记物的监测特征是在酶切割糖基与染料指示剂部分之间的糖苷键时可释放的产物(通常为氟或色原体)的释放。 测定方法可以遵循均匀或异质的方式。 优选的糖酮是β-半乳糖基,优选的染料指示剂部分是伞形酮残基。 改进的测定法特别适合于均相竞争性结合测定形式之后测定半抗原,例如药物和抗原蛋白质和多肽,包括抗体。
    • 5. 发明授权
    • Methods of determining initiation and variable end points for measuring
a chemical reaction
    • 确定用于测量化学反应的起始点和可变终点的方法
    • US5885839A
    • 1999-03-23
    • US842616
    • 1997-04-15
    • Paul J. LinganeJohn F. BurdKaren A. GoinsMichael D. Goins
    • Paul J. LinganeJohn F. BurdKaren A. GoinsMichael D. Goins
    • G01N21/86G01N33/00
    • G01N21/8483Y10T436/112499Y10T436/115831Y10T436/142222Y10T436/143333Y10T436/144444
    • The present invention provides a method of using a reflectance-reading device to determine an initiation time point for measuring the chemical reaction of an analyte from a biological liquid sample on a test surface. The initiation time point is determined by using a device to read a reflectance of a test surface at a plurality of time points, and calculating the K/S ratio of the test surface at each time point according to the Kubelka-Munk equation. As the device continues to calculate a K/S ratio for each time point, the device monitors the rate of change of the K/S ratio with respect to time. The device then determines the initiation time point to be when the rate of change of the K/S ratio is maximal. The present invention also provides a method of measuring the concentration of an analyte on a test surface. The concentration is measured by determining an initiation time point according to the method described above and then measuring the concentration of the analyte at a variable end point. The variable end point is essentially determined to be the time at which the rate of change of a concentration parameter is less than a threshold value.
    • 本发明提供一种使用反射率读取装置来确定用于测量来自测试表面上的生物液体样品的分析物的化学反应的起始时间点的方法。 通过使用设备读取多个时间点的测试表面的反射率并根据Kubelka-Munk方程计算每个时间点的测试表面的K / S比来确定起始时间点。 当设备继续计算每个时间点的K / S比时,设备将监视K / S比率相对于时间的变化率。 然后,当K / S比的变化率最大时,该装置确定起始时间点。 本发明还提供了一种测量测试表面上分析物浓度的方法。 通过根据上述方法确定起始时间点,然后测量分析物在可变终点的浓度来测量浓度。 可变终点基本上被确定为浓度参数的变化率小于阈值的时间。
    • 10. 发明授权
    • Homogeneous specific binding assay employing an intramolecularly
modulated photogenic enzyme substrate label
    • 使用分子内调节的光致酶底物标签的均相特异性结合测定
    • US4318981A
    • 1982-03-09
    • US143497
    • 1980-04-24
    • John F. BurdThomas M. Li
    • John F. BurdThomas M. Li
    • G01N33/58C12Q1/66
    • G01N33/581Y10S435/971
    • A homogeneous specific binding assay method and reagent means for determining a ligand, such as a hapten, antigen or antibody, in, or the ligand binding capacity of, a liquid medium employing a labeled conjugate which upon enzymatic cleavage produces a detectable indicator product. The improvement comprises employing as the label component in the labeled conjugate, a residue having the formula:P--X--M--Rwherein P is a photophore, e.g., a fluorescer, which emits light upon exposure to excitation means, X is an enzymatically cleavable linkage, M is a modulator, e.g., a quencher, for said light emission of the photophore, and R is a linking group to the binding component, e.g., the ligand or analog thereof, in the labeled conjugate. The labeled conjugate and the cleaved indicator product emit substantially different amounts of light upon excitation due to modulation of the emission of photophore P by the proximity of modulator M in the labeled conjugate.
    • 使用标记的缀合物的液体培养基中的配体,例如半抗原,抗原或抗体或其配体结合能力的均相特异性结合测定方法和试剂方法,其在酶裂解时产生可检测的指示剂产物。 改进包括在标记的缀合物中使用标记成分,具有下式的残基:PXMR,其中P是光致抗原,例如荧光素,其在暴露于激发装置时发光,X是可酶切割的键,M是 调节剂,例如猝灭剂,用于所述光致发光的发光,R是与标记的缀合物中的结合组分(例如其配体或类似物)的连接基团。 标记的缀合物和切割的指示剂产物由于通过调节剂M在标记的缀合物中的接近而调制光致磷P的发射而在激发时发射基本上不同的光量。