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    • 1. 发明授权
    • Assay for proline iminopeptidase and other hydrolytic activities
    • 测定脯氨酸亚氨基肽酶等水解活性
    • US5571684A
    • 1996-11-05
    • US374487
    • 1995-01-17
    • Paul J. LawrenceTerrence J. AndreasenDavid R. Shockey
    • Paul J. LawrenceTerrence J. AndreasenDavid R. Shockey
    • C12Q1/34C12Q1/37C12N11/08G01N21/00
    • C12Q1/37C12Q1/34C12Q2334/70C12Q2337/30Y10S435/805Y10S435/81
    • The presence of an enzymatically active hydrolase in a fluid sample is detected by contacting the sample with a solid-phase conjugate which is susceptible to cleavage by the hydrolase, and simultaneously or shortly thereafter, contacting the sample with an indicator which undergoes a detectable change upon the action of a reporter group. The reporter group is part of the conjugate and is liberated from it either partly or entirely by the action of the hydrolase. The indicator is susceptible to action by the reporter group only upon decoupling of the reporter group from the remainder of the conjugate, the decoupling occurring either in part or entirely upon action of the hydrolase. Also provided by this invention are various forms of a dry, self-contained test device which contains the conjugate described above plus the indicator and all other reagents and components necessary to achieve a detectable indication of the presence or absence of a catalytically active hydrolase. Preferred embodiments of the device also contain positive and negative controls.
    • 通过使样品与容易受水解酶切割的固相缀合物接触,并同时或不久之后将样品与经历可检测变化的指示剂接触,来检测流体样品中酶活性水解酶的存在 记者组的行动。 报告基团是缀合物的一部分,部分或完全由水解酶的作用释放。 只有报告基团与缀合物的其余部分脱钩,该指示剂才能受到报告基团的作用,部分或完全在水解酶的作用下发生脱离。 本发明还提供了各种形式的干燥,独立的测试装置,其包含上述缀合物加上指示剂以及实现可检测指示有无催化活性水解酶所必需的所有其它试剂和组分。 该装置的优选实施方案还包含阳性和阴性对照。
    • 2. 发明授权
    • Fecal occult blood test reagent
    • 粪便潜血试验试剂
    • US4818702A
    • 1989-04-04
    • US175573
    • 1988-03-31
    • Paul J. Lawrence
    • Paul J. Lawrence
    • C12Q1/28G01N21/78G01N33/72
    • C12Q1/28Y10S436/904
    • Fecal occult blood tests of enhanced sensitivity, specificity, and readability are provided by employing (1) a developer or complete reagent solution that uses as a solvent system a solvent comprising at least about 50% by volume of a solvent for iron protoporphyrins such as dimethyl sulfoxide and/or (2) a multi-chromogen comprised of a mixture of guaiac and ABTS. Test results may be further improved by incorporating hemoprotein solubilizing agents, plant peroxidase inhibitors, iron/copper chelating agents, accelerators and buffers in the developer/reagent.
    • 通过采用(1)显影剂或完整试剂溶液来提供增强的灵敏度,特异性和可读性的粪便隐血试验溶液,该溶液系统使用包含至少约50体积%的铁原卟啉如二甲基甲酰胺的溶剂的溶剂 亚砜和/或(2)由愈创木酮和ABTS的混合物组成的多色原子。 通过在显影剂/试剂中加入血蛋白增溶剂,植物过氧化物酶抑制剂,铁/铜螯合剂,促进剂和缓冲剂可以进一步改善测试结果。
    • 4. 发明授权
    • Fast response test panel
    • 快速响应测试面板
    • US5268146A
    • 1993-12-07
    • US858179
    • 1992-03-25
    • Paul J. LawrenceMarian B. BuccafurniLeah P. Lawrence
    • Paul J. LawrenceMarian B. BuccafurniLeah P. Lawrence
    • G01N31/22B01L3/00G01N33/52G01N33/543
    • B01L3/5027B01L2200/0684B01L2300/0627B01L2400/0406
    • A dry test panel for the testing of samples such as undiluted bodily fluid specimens is disclosed. The panel contains all reagents and components necessary to achieve a visible indication of the presence or absence of a suspect analyte in the sample, and preferred embodiments contain positive and negative controls as well. The device contains an internal chamber into which the specimen is introduced, and which contains all materials necessary for the reactions which produce a color change which is visible on the outer surface of the device. The materials are positioned in the chamber in such a manner that they are activated only when the chamber is filled with the specimen, and the color indicator is concentrated in a thin lamina immediately adjacent to a light-transmitting wall of the device so that a detectable color change occurs in a short period of time to produce a sensitive and yet fast test.
    • 公开了用于测试诸如未稀释的体液试样的样品的干试验板。 面板包含实现样品中可疑分析物的存在或不存在的可见指示所需的所有试剂和组分,并且优选实施方案也包含阳性和阴性对照。 该装置包含一个内部室,试样被引入其中,并且其中包含产生在装置的外表面上可见的颜色变化的反应所需的所有材料。 这些材料以这样的方式定位在室中,即只有当室被样品填充时,它们被激活,并且颜色指示器被集中在紧邻该装置的透光壁的薄层中,使得可检测 颜色变化发生在短时间内,以产生敏感且快速的测试。