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    • 15. 发明申请
    • SYSTEM AND METHOD FOR MULTIPLEXED AFFINITY PURIFICATION OF PROTEINS AND CELLS
    • 蛋白质和细胞的多重亲和纯化的系统和方法
    • WO2016077055A1
    • 2016-05-19
    • PCT/US2015/057146
    • 2015-10-23
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGYTHE MASSACHUSETTS GENERAL HOSPITAL
    • SARKAR, AniruddhHOU, Han, WeiHAN, JongyoonALTER, Galit
    • C12Q1/24
    • G01N1/405B01L3/502707B01L3/502761B01L3/502776B01L2200/0652B01L2300/0816B01L2300/0864B01L2300/088B01L2400/0409B01L2400/0487C12Q1/24
    • In accordance with an embodiment of the invention, there is provided a method for: a) high-throughput, multiplexed, affinity-based separation of proteins - especially low abundance proteins - from complex biological mixtures such as serum; and b) high- throughput, multiplexed, affinity-based separation of cells - especially rare cells - from complex biological mixtures such as blood or blood fractions. The separation of proteins or cells is achieved based on differential binding to affinity-capture beads of different sizes and then sorting the protein-bound or cell-bound beads using the concept of centrifugal-induced Dean migration in a spiral microfluidic device. This method enables continuous-flow, high throughput affinity-separation of milligram-scale protein samples or millions of cells in minutes after binding. This is particularly applicable to the isolation of antigen-specific antibodies from polyclonal sera and antigen-specific immune cells or circulating tumor cells from blood, both of which are otherwise highly labor-intensive and expensive to perform.
    • 根据本发明的一个实施方案,提供了一种用于:a)从复杂的生物混合物如血清中高通量,多重的,基于亲和力的蛋白质特别是低丰度蛋白质的分离; 和b)来自复杂生物混合物如血液或血液部分的高通量,多重的,基于亲和力的细胞分离 - 特别是稀有细胞。 蛋白质或细胞的分离基于与不同大小的亲和力捕获珠粒的差异结合,然后使用在螺旋微流体装置中离心诱导的Dean迁移的概念来分选蛋白质结合或细胞结合的珠粒来实现。 该方法能够在结合后的几分钟内实现毫克级蛋白质样品或数百万个细胞的连续流量,高通量亲和力分离。 这特别适用于从多克隆血清和抗原特异性免疫细胞或来自血液的循环肿瘤细胞分离抗原特异性抗体,两者都是高度劳动密集型和执行昂贵的。
    • 18. 发明申请
    • WATER DESALINATION/PURIFICATION AND BIO-AGENT PRECONCENTRATION
    • 水脱盐/净化和生物代谢预处理
    • WO2014209669A1
    • 2014-12-31
    • PCT/US2014/042655
    • 2014-06-17
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • KWAK, RhokyunHAN, Jongyoon
    • B01D61/44B01D61/46B01D61/54C02F1/42C02F1/46C02F1/469
    • C02F1/469B01D61/42C02F2103/08C02F2201/46115
    • Between two juxtaposed similar ion exchange membranes (AEMs or CEMs), an ion depletion zone (dde) and ion enrichment zone (den) are generated under an electric field. As cations are selectively transferred through the CEMs, for example, anions are relocated in order to achieve electro-neutrality, resulting in the concentration drop (increase) in ion depletion (enrichment) zone. The concentration drop (i.e. salt removal) is low and spatially gradual at relatively low voltage or current (i.e. Ohmic regime). However, at higher voltage or current (i.e. overlimiting regime), strong electroconvective vortex accelerates cation transport through CEMs, allowing us to "relocate" most salt ions. The flat depletion zone occurs with significantly low ion concentration, and corresponding strong electric field in the zone, and any charged agents cannot penetrate this flat zone. As a result, we can separate and collect the desalted/purified flow from brine flow by bifurcating the channel at the end of the CEMs.
    • 在两个并置的类似离子交换膜(AEM或CEM)之间,在电场下产生离子耗尽区(dde)和离子富集区(den)。 当阳离子选择性地通过CEM转移时,例如,阴离子被重新定位以实现电中性,导致离子耗尽(富集)区域的浓度下降(增加)。 在相对低的电压或电流(即欧姆方式)下,浓度下降(即去除盐)是低的并且在空间上逐渐变化。 然而,在较高的电压或电流(即覆盖状态)下,强对流涡流加速通过CEMs的阳离子传输,从而允许我们“重新定位”大多数盐离子。 平坦耗尽区出现明显低的离子浓度,并且区域中相应的强电场,任何带电剂不能穿透该平坦区域。 因此,我们可以通过在CEM结束时分流通道来分离和收集来自盐水流的脱盐/净化流。
    • 19. 发明申请
    • SEPARATION OF BINDING MOLECULES
    • 结合分子的分离
    • WO2013181615A1
    • 2013-12-05
    • PCT/US2013/043732
    • 2013-05-31
    • MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    • BIRCH, Christina, MarieHOU, Han, WeiHAN, JongyoonNILES, Jacquin, C.
    • C12M3/06
    • C12N15/1048B01L3/502746B01L3/502753B01L2200/0636B01L2300/0816B01L2300/0864B01L2300/088C12N15/1003
    • A method of separating one or more binding molecules that are specifically bound to one or more binding targets from a mixture of bound and unbound molecules includes introducing the mixture into at least one inlet of a microfluidic device at a sample flow rate. The microfluidic device includes at least one curved channel, wherein each curved channel has a length, a radius, and a cross-section of a height and a width defining an aspect ratio adapted to isolate the one or more molecules bound to the binding target along portions of the cross-section of the channel based on size. Bound molecules flow along a radially innermost portion of the channel to a first outlet, and unbound molecules flow along one or more other portions of the channel to at least one other outlet, thereby separating the one or more binding molecules that are specifically bound to the one or more binding targets from the mixture of bound and unbound molecules.
    • 分离从结合和未结合分子的混合物特异性结合一个或多个结合靶的一个或多个结合分子的方法包括以样品流速将混合物引入至少一个微流体装置的入口。 微流体装置包括至少一个弯曲通道,其中每个弯曲通道具有长度,半径和横截面,其高度和宽度限定了适于隔离结合到结合靶的一个或多个分子的纵横比 基于尺寸的通道的横截面的部分。 结合的分子沿着通道的径向最内部分流动到第一出口,未结合的分子沿着通道的一个或多个其它部分流动到至少一个其它出口,从而将一个或多个特异性结合到 来自结合和未结合分子的混合物的一种或多种结合靶。