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    • 2. 发明申请
    • Single target counting assays using semiconductor nanocrystals
    • 使用半导体纳米晶体的单目标计数测定
    • US20020028457A1
    • 2002-03-07
    • US09882193
    • 2001-06-13
    • Quantum Dot Corporation
    • Stephen Alexander EmpedoclesAndrew R. WatsonVince PhillipsEdith Wong
    • C12Q001/68
    • B82Y15/00G01N33/588
    • The present invention provides assays that allow for the detection of a single copy of a target of interest. The target species is either directly or indirectly labeled with a semiconductor nanocrytal, nullquantum dot.null The bright and tunable fluorescence of the quantum dot is readily detected using methods described herein. Also provided are assays that are based on the colocalization of two or more differently colored quantum dots on a single target species, which provides superbly sensitive assays in which the decrease in assay sensitivity caused by non-specific binding of assay mixture components to the assay substrate is minimized. The assays are of use to detect target species including, but are not limited to, nucleic acids, polypeptides, small organic bioactive agents (e.g., drugs, agents of war, herbicides, pesticides, etc.) and organisms.
    • 本发明提供允许检测感兴趣的靶标的单拷贝的测定。 目标物种直接或间接用半导体纳米碳“”量子点“标记。 使用本文所述的方法容易地检测量子点的明亮和可调谐的荧光。 还提供了基于在单个靶物种上两种或更多种不同颜色的量子点共定位的测定法,其提供了非常敏感的测定,其中由测定混合物组分非特异性结合到测定底物引起的测定灵敏度降低 被最小化。 该测定法用于检测靶物种,包括但不限于核酸,多肽,小有机生物活性剂(例如药物,战争剂,除草剂,农药等)和生物体。
    • 8. 发明授权
    • Methods and compositions for polynucleotide analysis using generic capture sequences
    • 使用通用捕获序列的多核苷酸分析的方法和组合物
    • US06838243B2
    • 2005-01-04
    • US09846430
    • 2001-04-30
    • Jennifer H. LaiVincent E. PhillipsAndrew R. Watson
    • Jennifer H. LaiVincent E. PhillipsAndrew R. Watson
    • C07H21/02C07H21/04C12M1/34C12P19/34C12Q1/68
    • C12Q1/6844C12Q1/6834C12Q2565/519C12Q2537/143C12Q2531/113
    • Methods, compositions and articles of manufacture for assaying a sample for an amplification product from a target polynucleotide are provided. An amplification reaction is used to produce the amplification product from the target polynucleotide so that it can be used to indirectly assay the sample for the target polynucleotide. A sample suspected of containing the target polynucleotide is contacted with first and second primers to amplify the target polynucleotide; the first primer comprises a tag sequence, the complement of which is formed on the opposite strand during amplification and is referred to as a capture sequence. That opposite strand is referred to as a second primer extension product or an amplification product, and comprises a label. A capture probe is provided that is conjugated to a substrate and can bind to the capture sequence to form an amplification product detection complex. Methods of detecting the amplification product thus produced are also provided, as are amplification product assay arrays, along with methods of forming the same. The methods are particularly useful in multiplex settings where a plurality of target polynucleotides are to be assayed. Kits comprising reagents for performing such methods are also provided.
    • 提供了用于从靶多核苷酸测定扩增产物样品的方法,组合物和制品。 使用扩增反应从靶多核苷酸产生扩增产物,使其可用于间接测定靶多核苷酸的样品。 将怀疑含有靶多核苷酸的样品与第一和第二引物接触以扩增靶多核苷酸; 第一引物包含标签序列,其互补体在扩增过程中在相对的链上形成并被称为捕获序列。 该相对链被称为第二引物延伸产物或扩增产物,并且包含标记。 提供了捕获探针,其与底物缀合并且可以结合捕获序列以形成扩增产物检测复合物。 还提供了检测如此生产的扩增产物的方法,扩增产物测定阵列以及其形成方法。 所述方法在多重设置中特别有用,其中将测定多个靶多核苷酸。 还提供了包含用于执行这些方法的试剂的试剂盒。
    • 9. 发明申请
    • Loop probe hybridization assay for polynucleotide analysis
    • 用于多核苷酸分析的环路探针杂交测定
    • US20040171039A1
    • 2004-09-02
    • US10716063
    • 2003-11-17
    • Quantum Dot Corporation
    • Marcel P. BruchezJennifer LaiVince PhillipsAndrew R. WatsonEdith Wong
    • C12Q001/68
    • B82Y5/00B82Y10/00C12Q1/6818C12Q1/6834C12Q2537/143C12Q2561/119C12Q2525/301
    • Methods, compositions and articles of manufacture for assaying a sample for a target polynucleotide and/or an amplification product therefrom are provided. The methods comprise contacting a sample suspected of containing the target polynucleotide with a polynucleotide that can bind specifically thereto; this polynucleotide is conjugated to a substrate, preferably an encoded bead conjugate. An amplification reaction can first be used to produce the amplification product from the target polynucleotide so that it can be used to indirectly assay for the target polynucleotide. An amplification product detection complex and method of forming the same are also provided. The methods are particularly useful in multiplex settings where a plurality of targets are present. Amplification product assay complexes and amplification product assay arrays are also provided, along with methods of forming the same. Kits comprising reagents for performing such methods are also provided.
    • 提供了用于测定靶多核苷酸和/或其扩增产物的样品的方法,组合物和制品。 所述方法包括使怀疑含有靶多核苷酸的样品与可特异结合的多核苷酸接触; 该多核苷酸与底物缀合,优选编码的珠缀合物。 首先可以使用扩增反应来产生来自目标多核苷酸的扩增产物,使得其可以用于间接测定靶多核苷酸。 还提供了扩增产物检测复合物及其形成方法。 这些方法在存在多个目标的多路复用设置中特别有用。 还提供了扩增产物测定复合物和扩增产物测定阵列,以及其形成方法。 还提供了包含用于执行这些方法的试剂的试剂盒。