Modified antibodies with increased affinity
    1.
    发明授权
    Modified antibodies with increased affinity 失效
    具有增加亲和力的修饰抗体

    公开(公告)号:US5367058A

    公开(公告)日:1994-11-22

    申请号:US111699

    申请日:1993-08-25

    IPC分类号: A61K49/16 C07K15/28

    CPC分类号: A61K49/16

    摘要: The present invention relates to modified antibodies and fragments which display an increased affinity for antigen as compared to the affinity of unmodified antibody for antigen. The most preferred modification is the addition of a thiol group on the surface of the antibody such that a covalent bond forms between the antibody and antigen when they bind to one another.

    摘要翻译: 本发明涉及与未修饰的抗体对抗原的亲和力相比显示增加的抗原亲和力的修饰的抗体和片段。 最优选的修饰是在抗体表面上添加硫醇基团,使得当它们彼此结合时,抗体和抗原之间形成共价键。

    Detection of ligands by refractive surface methods
    6.
    发明授权
    Detection of ligands by refractive surface methods 有权
    通过折射表面法检测配体

    公开(公告)号:US06576430B1

    公开(公告)日:2003-06-10

    申请号:US09716566

    申请日:2000-11-20

    IPC分类号: G01N3353

    摘要: Methods for detection and analysis of allosteric receptor/ligand binding by changes in surface refractive index are provided. When analyzed by surface plasmon resonance, binding of such allosteric binding agents to their ligands may result in a negative deviation in the optical response (i.e., a decrease in resonance angle) or in an increase in the optical response (i.e., an increase in resonance angle) depending on the binding properties of the selected allosteric receptor. Other methods for analysis of surface refractive index are also useful in the invention. The methods of the invention are particularly useful for small ligands which would not be expected to produce detectable changes in refractive index because they do not add significant mass upon binding.

    摘要翻译: 提供了通过表面折射率变化检测和分析变构受体/配体结合的方法。 当通过表面等离子体共振分析时,这种变构结合剂与其配体的结合可能导致光学响应的​​负偏差(即,共振角的减小)或光响应的增加(即共振增加 角度)取决于所选择的变构受体的结合特性。 用于分析表面折射率的其它方法在本发明中也是有用的。 本发明的方法对于小的配体特别有用,因为它们在结合时不会增加显着的质量,所以不希望产生可检测的折射率变化。

    Device for monitoring cells
    7.
    发明授权
    Device for monitoring cells 有权
    用于监控单元的设备

    公开(公告)号:US06395506B1

    公开(公告)日:2002-05-28

    申请号:US09342720

    申请日:1999-06-29

    IPC分类号: C12Q118

    摘要: The present invention relates to methods for detection and evaluation of metabolic activity of eukaryotic and/or prokaryotic cells based upon their ability to consume dissolved oxygen. The methods utilize a luminescence detection system which makes use of the sensitivity of the luminescent emission of certain compounds to the presence of oxygen, which quenches (diminishes) the compound's luminescent emission in a concentration dependent manner. Respiring eukaryotic and/or prokaryotic cells will affect the oxygen concentration of a liquid medium in which they are immersed. Thus, this invention provides a convenient system to gather information on the presence, identification, quantification and cytotoxic activity of eukaryotic and/or prokaryotic cells by determining their effect on the oxygen concentration of the media in which they are present.

    摘要翻译: 本发明涉及基于其消耗溶解氧的能力来检测和评价真核细胞和/或原核细胞的代谢活性的方法。 该方法利用了发光检测系统,其利用某些化合物的发光发射对氧的存在的敏感性,其以浓度依赖性方式猝灭(减少)化合物的发光发射。 呼吸真核细胞和/或原核细胞将影响浸入其中的液体培养基的氧浓度。 因此,本发明提供了一种方便的系统,用于通过确定它们对存在的介质的氧浓度的影响来收集关于真核细胞和/或原核细胞的存在,鉴定,定量和细胞毒活性的信息。

    Fluorescent chlamydia antigen substrate
    8.
    发明授权
    Fluorescent chlamydia antigen substrate 失效
    荧光衣原体抗原底物

    公开(公告)号:US5837695A

    公开(公告)日:1998-11-17

    申请号:US701340

    申请日:1996-08-22

    申请人: J. Bruce Pitner

    发明人: J. Bruce Pitner

    IPC分类号: A61K31/70 C07H15/24

    CPC分类号: C07H13/10

    摘要: The present invention relates to a unique fluorescently labeled Chlamydial antigen. This fluorescently labeled Chlamydial antigen is useful in immunoassay-type formatted systems for the detection of antibodies to Chlamydia or unlabeled Chlamydia antigens.

    摘要翻译: 本发明涉及独特的荧光标记衣原体抗原。 这种荧光标记的衣原体抗原可用于免疫测定型格式化系统,用于检测衣原体或未标记衣原体抗原的抗体。

    Fluorescent pH indicators
    9.
    发明授权
    Fluorescent pH indicators 失效
    荧光pH指标

    公开(公告)号:US5380880A

    公开(公告)日:1995-01-10

    申请号:US163099

    申请日:1993-12-06

    摘要: Fluorescent pH indicator compounds which exhibit an increase in fluorescence intensity with decreasing pH. The indicators are derivatives of rhodamine and sulforhodamine type dyes and are particularly useful for measuring pH in acidic environments such as carbon dioxide production by microorganisms and pH of certain acidic intracellular compartments.

    摘要翻译: 荧光pH指示剂化合物,随着pH值的降低,荧光强度呈现增加的趋势。 指示剂是罗丹明和磺酰罗丹明型染料的衍生物,并且特别可用于在酸性环境中测量pH,例如微生物产生的二氧化碳和某些酸性细胞内区室的pH。

    Fluorescent pH indicators
    10.
    发明授权
    Fluorescent pH indicators 失效
    荧光pH指标

    公开(公告)号:US5302731A

    公开(公告)日:1994-04-12

    申请号:US912426

    申请日:1992-07-13

    摘要: Fluorescent pH indicator compounds which exhibit an increase in fluorescence intensity with decreasing pH. The indicators are derivatives of rhodamine and sulforhodamine type dyes and are particularly useful for measuring pH in acidic environments such as carbon dioxide production by microorganisms and pH of certain acidic intracellular compartments.

    摘要翻译: 荧光pH指示剂化合物,随着pH值的降低,荧光强度呈现增加的趋势。 指示剂是罗丹明和磺酰罗丹明型染料的衍生物,并且特别可用于在酸性环境中测量pH,例如微生物产生的二氧化碳和某些酸性细胞内区室的pH。