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    • 2. 发明申请
    • METHODS AND APPARATUS FOR BINDING ASSAYS
    • 用于绑定测试的方法和装置
    • US20120220486A1
    • 2012-08-30
    • US13505455
    • 2010-10-31
    • Javier FarinasAndrea ChowJohn Wallace Parce
    • Javier FarinasAndrea ChowJohn Wallace Parce
    • G01N33/53C40B30/04
    • C12Q1/6825C12Q1/6834G01N33/54346C12Q2565/107C12Q2523/303C12Q2565/607
    • The present teachings relate to methods, systems, and apparatus for low cost label-free assay detection. The present teachings, in a variety of embodiments, employ opposing forces to detect signals which depend on the number of charges on and/or the size of a particle. The particle, which can be subjected to opposing forces, can have specific capture probes at its surface. As analytes of interest are captured by the particle, the number of charges on the particle surface and/or the size of the particle is changed. A particle parameter or kinematic property such as the position, velocity, acceleration or force of/on the particle can be measured, and results obtained relating, for example, to the present, absence, quantity, and such, of one or more analytes of interest. Various embodiments are described for efficient, high throughput assays of samples potentially including one or more analytes of interest, such as bioanalytes. As well, various embodiments are described wherein binding assays can be carried out without the need or use of extrinsic labels. A number of embodiments provide, for example, methods, systems, and apparatus for detecting analytes (such as nucleic acids, proteins, cells and other entities, particulates, and the like) in one or more samples. Also described are: detection of a single copy of a target biomolecule, such as DNA, captured onto a trapped (e.g., tethered) bead; protocols for fabricating encoded bead arrays for multiplex assays; and methods, systems and apparatus for efficient and specific capture of pathogen biomolecular markers onto bead-bound capture probes, as well as detection and measurement of such capture events.
    • 本教导涉及用于低成本无标签测定检测的方法,系统和装置。 在各种实施例中,本教导使用相反的力来检测取决于粒子的数量和/或粒子尺寸的信号。 可以受到相反力的颗粒在其表面可以具有特定的捕获探针。 当感兴趣的分析物被颗粒俘获时,粒子表面上的电荷数和/或粒子的大小被改变。 可以测量颗粒参数或运动学特性,例如颗粒上的/位置,速度,加速度或力,或者与例如当前,不存在,数量等相关的一种或多种分析物 利益。 描述了针对可能包括一种或多种感兴趣的分析物(例如生物分析物)的样品的有效,高通量测定的各种实施方案。 同样,描述了各种实施方案,其中可以在不需要或使用外在标记的情况下进行结合测定。 许多实施例提供了例如在一个或多个样品中检测分析物(例如核酸,蛋白质,细胞和其他实体,颗粒等)的方法,系统和装置。 还描述了:捕获到捕获的(例如,系留的)珠粒上的目标生物分子(例如DNA)的单拷贝的检测; 用于制备用于多重测定的编码珠阵列的方案; 以及用于将有效和特异性捕获病原体生物分子标记物转移到珠束捕获探针上的方法,系统和装置,以及这些捕获事件的检测和测量。
    • 7. 发明授权
    • Methods and reagents for targeting organic compounds to selected cellular locations
    • 将有机化合物靶向选定的细胞位置的方法和试剂
    • US07045305B1
    • 2006-05-16
    • US09403882
    • 1999-04-08
    • Javier Farinas
    • Javier Farinas
    • G01N33/53C12N15/13C12P21/08C07H21/04
    • G01N33/84C07K16/00C07K2317/81C07K2319/05G01N33/582G01N33/6857
    • The present invention provides methods and reagents for targeting probes to selected cellular locations, through the expression of specific binding partners to that probe within the cell. In one embodiment, the probes may comprise spectroscopic probe that can be used in a method for localizing a specific binding partner within a cell, and for creating assays for post-translational activities. The invention allows the monitoring of the location of such intracellular specific binding partners over time and in response to stimuli, such as test chemicals. The spectroscopic probes can be used for screening a test chemical for activity. The present invention also includes cells and transgenic organisms comprising the intracellular specific binding partner, wherein the specific binding partner can bind with the spectroscopic probe/ligand conjugate.
    • 本发明提供通过在细胞内表达特异性结合配偶体到该探针的方法和试剂来将探针靶向选定的细胞位置。 在一个实施方案中,探针可以包含可用于定位细胞内的特异性结合配偶体的方法中的光谱探针,以及用于产生翻译后活性的测定。 本发明允许监测这些细胞内特异性结合配偶体随时间和响应于刺激物(例如测试化学品)的位置。 光谱探针可用于筛选测试化学品的活性。 本发明还包括细胞和包含细胞内特异性结合配偶体的转基因生物,其中特异性结合配偶体可以与光谱探针/配体缀合物结合。