Quantitative measurement of LDL
    31.
    发明授权
    Quantitative measurement of LDL 失效
    LDL的定量测定

    公开(公告)号:US5417863A

    公开(公告)日:1995-05-23

    申请号:US269952

    申请日:1994-06-30

    摘要: Disclosed is a method for the rapid quantitative determination of low density lipoprotein (LDL) in a biological fluid sample containing LDL, very low density lipoprotein (VLDL) and high density lipoprotein (HDL). The sample is first passed through a matrix to bind LDL to the matrix. The LDL is then eluted from the matrix differentially from VLDL and HDL. A parameter representative of the concentration of a solute exiting the matrix during the interval when LDL is eluted is then determined, wherein the parameter is proportional to the amount of the LDL in the sample. The parameter may be determined, e.g., by electronically integrating under a spectrophotometrically detected peak of eluted LDL.

    摘要翻译: 公开了一种用于在含有LDL,极低密度脂蛋白(VLDL)和高密度脂蛋白(HDL))的生物液体样品中快速定量测定低密度脂蛋白(LDL)的方法。 样品首先通过矩阵将LDL结合到基质上。 然后将LDL从VLDL和HDL差异性地从基质中洗脱出来。 然后确定表示在洗脱LDL的间隔期间离开基质的溶质的浓度的参数,其中参数与样品中LDL的量成比例。 该参数可以例如通过在分光光度法检测的洗脱的LDL的峰上电子积分来确定。

    Sulfonamide bonded hydrophilic coatings
    32.
    发明授权
    Sulfonamide bonded hydrophilic coatings 失效
    磺酰胺粘合亲水涂料

    公开(公告)号:US5389449A

    公开(公告)日:1995-02-14

    申请号:US467

    申请日:1993-01-05

    摘要: A method of derivatizing a chromatography matrix having a hydrophobic surface involves reacting the hydrophobic surface with a halosulfonating agent to produce a significant amount of halosulfone groups covalently bonded onto the surface. Sulfonamide bonds then are formed between these halosulfone groups and a group of amine functions on a polyaminated polymer to produce a pellicular anion exchange layer covalently bonded to the surface. The resulting layer is stable in the absence of cross-links between the molecules of the polyaminated polymer.

    摘要翻译: 衍生具有疏水性表面的色谱基质的方法包括使疏水表面与卤代磺化剂反应以产生大量共价键合到表面上的卤代烃基团。 然后在这些卤代烃基之间形成磺酰胺键,并在聚氨酯聚合物上形成一组胺官能团,以产生共价结合到表面上的薄膜状阴离子交换层。 所得层在多层聚合物的分子之间不存在交联的情况下是稳定的。

    Method for detecting trace contaminants
    33.
    发明授权
    Method for detecting trace contaminants 失效
    检测痕量污染物的方法

    公开(公告)号:US5306426A

    公开(公告)日:1994-04-26

    申请号:US67418

    申请日:1993-05-25

    申请人: Noubar B. Afeyan

    发明人: Noubar B. Afeyan

    摘要: The invention features a method of detecting a trace solute in a solution which contains a major amount of a dissolved product, the method including the steps of: flowing the solution through means for extracting the product to produce an effluent flow substantially free of product containing the trace solute; flowing the effluent through a trace solute adsorbing means to progressively accumulate therein the trace solute; and eluding the trace solute from the adsorber to produce an eluant fraction containing a detectable quantity of the trace solute.

    摘要翻译: 本发明的特征在于一种检测溶液中痕量溶质的方法,该溶液含有主要量的溶解产物,该方法包括以下步骤:使溶液流过提取产物的装置,以产生基本上不含含有 痕量溶质 使污水流过痕量溶质吸附装置,逐渐积累痕量溶质; 并且从吸附器中排除痕量溶质以产生含有可检测量的痕量溶质的洗脱液组分。

    Synthons for the synthesis and deprotection of peptide nucleic acids
under mild conditions
    34.
    发明授权
    Synthons for the synthesis and deprotection of peptide nucleic acids under mild conditions 失效
    用于在温和条件下合成和去保护肽核酸的合成子

    公开(公告)号:US6133444A

    公开(公告)日:2000-10-17

    申请号:US487666

    申请日:1995-06-07

    摘要: A method is disclosed for preparing novel purine PNA synthons having protecting groups which may be removed under mild conditions. The purine PNA synthons generally are prepared by coupling purine derivatives having carbamate protection to a protected N-(2-aminoethyl)-glycine backbone. By a method of this invention, purine PNA synthons may have orthogonal protection of the carbamate protected purine and the protected backbone. The purine PNA synthons are useful in the synthesis of peptide nucleic acids (PNAs) and other oligomers such as PNA-DNA chimeras, and may be used in automated synthesizers. In practicing methods of the invention, novel compositions of matter also are disclosed. For example, disclosed herein are an adenine PNA synthon having the following formula: ##STR1## and a guanine PNA synthon having the following formula: ##STR2##

    摘要翻译: 公开了一种制备具有可在温和条件下除去的保护基的新型嘌呤PNA合成子的方法。 嘌呤PNA合成酶通常通过将具有氨基甲酸酯保护的嘌呤衍生物与保护的N-(2-氨基乙基) - 甘氨酸主链偶联来制备。 通过本发明的方法,嘌呤PNA合成子可具有氨基甲酸酯保护的嘌呤和被保护的主链的正交保护。 嘌呤PNA合成子可用于合成肽核酸(PNA)和其它寡聚体如PNA-DNA嵌合体,并可用于自动合成仪中。 在本发明的实践方法中,还公开了新的物质组合物。 例如,本文公开了具有下式的腺嘌呤PNA合成子和具有下式的鸟嘌呤PNA合成子:

    Methods for determining sequences information in polynucleotides using
mass spectrometry
    36.
    发明授权
    Methods for determining sequences information in polynucleotides using mass spectrometry 失效
    使用质谱法测定多核苷酸序列信息的方法

    公开(公告)号:US5885775A

    公开(公告)日:1999-03-23

    申请号:US726090

    申请日:1996-10-04

    IPC分类号: C12Q1/68 C12P19/34 G01N24/00

    摘要: The invention relates to methods for determining sequence information in polynucleotides by combining the recent disparate technologies of mass spectrometry and polynucleotide hybridization, amplification, extension and/or ligation techniques. Broadly, in a first step, the method for determining sequence information in a sample polynucleotide includes hybridizing with a sample nucleotide one or a mixture of oligonucleotide probes having a nucleotide sequence complementary to a portion of the sample polynucleotide, thereby forming a complex. Then, in a second step, the complex is contacted with at least a member selected from the group consisting of nucleosides, dideoxynucleosides, polymerases, nucleases, transcriptases, ligases and restriction enzymes to alter at least a subset of said oligonucleotide probes. In a third step, the method provides for determining the molecular weight of at least the subset of altered probes by mass spectrometry and infering the sequence information of the sample polynucleotide therefrom.

    摘要翻译: 本发明涉及通过组合最近不同的质谱技术和多核苷酸杂交,扩增,延伸和/或连接技术来确定多核苷酸序列信息的方法。 广泛地,在第一步中,用于确定样品多核苷酸中的序列信息的方法包括与样品核苷酸1或具有与样品多核苷酸的一部分互补的核苷酸序列的寡核苷酸探针的混合物杂交,从而形成复合物。 然后,在第二步中,将复合物与至少一种选自核苷,双脱氧核苷,聚合酶,核酸酶,转录酶,连接酶和限制酶的成员接触以改变至少一个所述寡核苷酸探针的子集。 在第三步中,所述方法提供通过质谱法确定至少所述改变的探针子集的分子量,并从其中推断样品多核苷酸的序列信息。

    Module for optical detection in microscale fluidic analyses
    38.
    发明授权
    Module for optical detection in microscale fluidic analyses 失效
    用于微量流体分析中光学检测的模块

    公开(公告)号:US5757482A

    公开(公告)日:1998-05-26

    申请号:US425290

    申请日:1995-04-20

    IPC分类号: G01N21/05 G01N21/03

    CPC分类号: G01N21/05 G01N2021/0346

    摘要: Disclosed is an apparatus for fluidic separation systems comprising a microfabricated conduit including a usefully long optical pathlength. The provision of a usefully long optical pathlength in the apparatus greatly improves the sensitivity of detection of separated analytes without compromising the resolving power of the apparatus.

    摘要翻译: 公开了一种用于流体分离系统的装置,其包括具有有用长的光程长度的微细导管。 在设备中提供有用的长光程长大大提高了检测分离的分析物的灵敏度,而不会影响设备的分辨率。

    Molecular imaging
    39.
    发明授权
    Molecular imaging 失效
    分子成像

    公开(公告)号:US5641539A

    公开(公告)日:1997-06-24

    申请号:US457326

    申请日:1995-06-01

    摘要: Disclosed are chemically-produced specific binding, "molecular imaged" sorbents which reversibly bind a preselected macromolecule by spatially matched multipoint interactions between functional groups synthesized on the surface of the sorbent and functional groups on the surface of the macromolecule. Also disclosed are methods of producing such sorbents. The sorbents typically are high surface area solids comprising surface binding regions which have charged groups, metal coordinating groups, hydrophobic moieties, or various combination thereof anchored thereto and spaced in the mirror image of complementary interactive groups on a surface of the macromolecule.

    摘要翻译: 公开了化学产生的特异性结合,“分子成像”吸附剂,其通过在吸附剂表面上合成的官能团和大分子表面上的官能团之间的空间匹配的多点相互作用可逆地结合预选的大分子。 还公开了生产这种吸附剂的方法。 吸附剂通常是高表面积固体,其包含具有带电基团,金属配位基团,疏水部分或锚定于其上的各种组合并且在大分子表面上的互补相互作用基团的镜像中隔开的表面结合区域。

    Compositions, methods and apparatus for ultrafast electroseparation
analysis
    40.
    发明授权
    Compositions, methods and apparatus for ultrafast electroseparation analysis 失效
    用于超快电分离分析的组合物,方法和装置

    公开(公告)号:US5630924A

    公开(公告)日:1997-05-20

    申请号:US425828

    申请日:1995-04-20

    摘要: Compositions, methods, and apparatus for performing ultrafast binding assays by capillary electrophoresis or other electroseparation techniques are disclosed. In one embodiment, a first binding partner carries a detectable label and a second binding partner is modified to be highly charged. When used in combination with a sample containing an analyte with which both binding partners can interact and bind thereto, a three-membered complex is formed. The electrophoretic mobility difference between the unbound and complex-bound forms of labeled first binding partner is such that electroseparation and subsequent detection of an analyte can be accomplished. The compositions, methods, and apparatus disclosed herein also permit quantitative determination of the concentration of an analyte in a sample.

    摘要翻译: 公开了通过毛细管电泳或其他电离分离技术进行超快速结合测定的组合物,方法和装置。 在一个实施方案中,第一结合伴侣携带可检测标记,第二结合伴侣被修饰为高度带电。 当与含有两个结合配偶体可以与其结合的分析物的样品组合使用时,形成三元复合物。 标记的第一结合配偶体的未结合和复合结合形式之间的电泳迁移率差异可以实现电分离和随后的分析物检测。 本文公开的组合物,方法和装置还允许定量测定样品中分析物的浓度。