Triggered optical biosensor
    41.
    发明授权
    Triggered optical biosensor 失效
    触发式光学生物传感器

    公开(公告)号:US06297059B1

    公开(公告)日:2001-10-02

    申请号:US09338457

    申请日:1999-06-22

    IPC分类号: G01N33566

    摘要: An optical biosensor is provided for the detection of a multivalent target biomolecule, the biosensor including a substrate having a bilayer membrane thereon, a recognition molecule situated at the surface, the recognition molecule capable of binding with the multivalent target biomolecule, the recognition molecule further characterized as including a fluorescence label thereon and as being movable at the surface and a device for measuring a fluorescence change in response to binding between the recognition molecule and the multivalent target biomolecule.

    摘要翻译: 提供了一种用于检测多价目标生物分子的生物传感器,其生物传感器包括其上具有双层膜的底物,位于表面的识别分子,能够与多价靶标生物分子结合的识别分子,进一步表征的识别分子 包括其上的荧光标记和在表面可移动的装置和用于测量响应于识别分子和多价目标生物分子之间的结合的荧光变化的装置。

    Methods for the temporal analysis of programmed cell death in living
cells
    42.
    发明授权
    Methods for the temporal analysis of programmed cell death in living cells 失效
    活细胞程序性细胞死亡的时间分析方法

    公开(公告)号:US6063580A

    公开(公告)日:2000-05-16

    申请号:US275831

    申请日:1999-03-25

    IPC分类号: G01N33/50 G01N33/567 C12Q1/68

    摘要: Methods for determining the induction and assessing the course of programmed cell death (PCD) over time in living cells are provided. The methods of the present invention comprise the steps of contacting viable cells with a detectable reagent having high affinity for phosphatidylserine, qualitatively and/or quantitatively detecting the cells that have reacted with the detectable reagent, removing the detectable reagent, recontacting the cells with the detectable reagent and qualitatively and/or quantitatively detecting cells that have reacted with the detectable reagent. The methods of the present invention are performed with cells maintained in a viable state, thereby allowing detection of the induction and assessment of the progression of PCD over time.

    摘要翻译: 提供了在活细胞中确定诱导程序和评估程序性细胞死亡(PCD)随时间变化的方法。 本发明的方法包括以下步骤:将活细胞与对磷脂酰丝氨酸具有高亲和力的可检测试剂接触,定性和/或定量检测已经与可检测试剂反应的细胞,除去可检测的试剂,用可检测的细胞重新培养细胞 试剂和定性和/或定量检测与可检测试剂反应的细胞。 本发明的方法用保持在可行状态的细胞进行,从而允许检测PCD随时间的进展的诱导和评估。

    Chromatographic method and device for preparing blood serum for
compatibility testing
    43.
    发明授权
    Chromatographic method and device for preparing blood serum for compatibility testing 失效
    用于制备血清以进行相容性测试的色谱法和装置

    公开(公告)号:US6017721A

    公开(公告)日:2000-01-25

    申请号:US789096

    申请日:1996-10-11

    申请人: Robert Butz

    发明人: Robert Butz

    摘要: The invention provides a new method for antiglobulin testing from serum of a potential blood transfusion recipient in which warm autoantibodies are removed from serum so as to allow identification of alloantibodies present. The method involves contacting serum from a patient with one or more ligands that bind warm autoantibodies but do not bind alloantibodies, separating the non-bound serum components from the bound warm autoantibodies, and using the warm autoantibody-depleted serum in antiglobulin testing. Suitable ligands include phospholipids, the polar head groups of phosphoglycerides, and naturally occurring and synthetic analogues of these molecules.

    摘要翻译: 本发明提供了一种从潜在输血接受者的血清中测试抗球蛋白的新方法,其中从血清中除去温热自身抗体,以便确定存在的同种异体抗体。 该方法包括使来自患者的血清与一种或多种结合温热自身抗体但不结合同种异体抗体的配体接合,从结合的温热自身抗体中分离未结合的血清成分,并在抗球蛋白试验中使用温热自身抗体血清。 合适的配体包括磷脂,磷酸甘油酯的极性头基,以及这些分子的天然存在和合成的类似物。

    Gustducin polypeptides and fragments
    45.
    发明授权
    Gustducin polypeptides and fragments 失效
    肠胃蛋白多肽和片段

    公开(公告)号:US5817759A

    公开(公告)日:1998-10-06

    申请号:US407804

    申请日:1995-03-20

    摘要: A novel taste cell specific guanine nucleotide binding protein, gustducin, is disclosed as well as polynucleotide sequences encoding the .alpha. subunit of gustducin. Also disclosed are methods of modifying taste involving agents that inhibit or activate the gustducin .alpha. subunit, methods for identifying such taste modifying agents and various taste modifying agents.

    摘要翻译: 公开了一种新颖的味道细胞特异性鸟嘌呤核苷酸结合蛋白(gustducin),以及编码gustducin的α亚基的多核苷酸序列。 还公开了改变味道的方法,其涉及抑制或激活外排蛋白α亚基的试剂,用于鉴定这种调味剂和各种味觉调节剂的方法。

    Reagent used for determining factor VIII activity
    47.
    发明授权
    Reagent used for determining factor VIII activity 失效
    用于确定因子VIII活性的试剂

    公开(公告)号:US5506112A

    公开(公告)日:1996-04-09

    申请号:US819456

    申请日:1992-01-10

    摘要: To determine the factor VIII activity of a sample, the latter is reacted with a reagent containing thrombin, factor IXa.beta., phospholipids and calcium ions so as to form a factor VIIIa-factor IXa-phospholipid-calicum ion-containing complex. This complex is reacted with factor X so as to obtain activated factor X. The obtained factor Xa is reacted with chromogenic substrate so as to form a substance to be determined spectrophotometrically. Complex formation and activation of factor X are effected in one stage: The sample is mixed with a mixture of human thrombin, phospholipids, calcium ions, human factor IXa.beta., human factor X and, if desired, human factor XIa and human factor XIIa, as a complex-forming reagent.

    摘要翻译: 为了确定样品的因子VIII活性,后者与含有凝血酶,因子IXaβ,磷脂和钙离子的试剂反应,以形成VIIIa因子IXa-磷脂 - 含钙离子的复合物。 使该络合物与因子X反应,得到活化因子X.将得到的因子Xa与显色底物反应,形成分光光度法测定的物质。 因子X的复合物形成和活化在一个阶段进行:将样品与人凝血酶,磷脂,钙离子,人因子IXaβ,人因子X以及如果需要的人因子XIa和人因子XIIa的混合物混合, 作为复合物形成试剂。

    Measurement of platelet activities
    49.
    发明授权
    Measurement of platelet activities 失效
    测量血小板活性

    公开(公告)号:US5266462A

    公开(公告)日:1993-11-30

    申请号:US892865

    申请日:1992-06-03

    摘要: Methods are provided for measuring the procoagulant activity of platelets in blood by means of a chromogenic assay which is specific for procoagulant phospholipids. These methods include the determination of the resting activity and/or excitability of platelets, which determines the threshold at which activating clotting factors (circulating in blood) are dangerous. Also methods are provided for screening drugs for their potential inhibitory effect on the activation of platelets.

    摘要翻译: 提供了用于通过对促凝血磷脂特异的显色测定来测量血液中血小板促凝血活性的方法。 这些方法包括测定血小板的静息活动和/或兴奋性,其确定激活凝血因子(血液中循环)是危险的阈值。 还提供了用于筛选药物对血小板活化的潜在抑制作用的方法。

    Composition, kit and method for assaying heparin and a method for making
the composition
    50.
    发明授权
    Composition, kit and method for assaying heparin and a method for making the composition 失效
    用于测定肝素的组合物,试剂盒和方法以及制备该组合物的方法

    公开(公告)号:US4946775A

    公开(公告)日:1990-08-07

    申请号:US363783

    申请日:1989-06-09

    申请人: E. Thye Yin

    发明人: E. Thye Yin

    IPC分类号: C12Q1/56 G01N33/86

    摘要: A composition, kit and method for determining the concentration of heparin in a blood plasma sample and a method for making the composition. The method includes incubating a blood plasma sample with a known amount of Factor X.sub.a, combining the incubated product with an admixture of calcium chloride, brain phospholipids, and a buffered plasma fraction that has been produced by treating mammalian blood to substantially remove Factors II, VII, IX and X while retaining Factor V and fibrinogen, and measuring the time it takes for clotting to occur after combining the incubated product with the admixture.

    摘要翻译: 用于测定血浆样品中肝素浓度的组合物,试剂盒和方法以及制备该组合物的方法。 该方法包括用已知量的因子Xa孵育血浆样品,将孵育的产物与氯化钙,脑磷脂和通过处理哺乳动物血液产生的缓冲血浆级分混合,基本上除去因子II,VII ,IX和X,同时保留因子V和纤维蛋白原,并测量在将孵育的产物与外加剂组合后发生凝血所需的时间。