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公开(公告)号：US08951732B2
公开(公告)日：2015-02-10
申请号：US12665788
申请日：2008-06-23
CPC分类号： C12Q1/6846 , C12Q2527/15 , C12Q2527/101
摘要： A method of amplifying a nucleic acid, the method comprising cycling an amplification-ready droplet through a temperature gradient to locations within the temperature gradient suitable for effecting steps in an amplification reaction.
摘要翻译： 一种扩增核酸的方法，所述方法包括使扩增准备的液滴通过温度梯度循环到适于在扩增反应中进行步骤的温度梯度内的位置。
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公开(公告)号：US20110114490A1
公开(公告)日：2011-05-19
申请号：US12985409
申请日：2011-01-06
IPC分类号： B01J8/08
CPC分类号： B01F11/0071 , B01F13/0071 , B01F13/0076 , B01L3/502715 , B01L3/502761 , B01L3/502784 , B01L3/502792 , B01L7/52 , B01L7/525 , B01L2200/027 , B01L2300/0654 , B01L2300/0816 , B01L2300/0861 , B01L2300/0864 , B01L2300/0867 , B01L2300/089 , B01L2300/1827 , B01L2400/0406 , B01L2400/0415 , B01L2400/0421 , B01L2400/0424 , B01L2400/0427 , B01L2400/043 , B01L2400/0436 , B01L2400/0442 , B03C1/01 , B03C1/288 , B03C2201/18 , G01N2035/1046
摘要： The invention provides a method of redistributing magnetically responsive beads in a droplet. The method may include providing a droplet including magnetically responsive beads. The droplet may be provided within a region of a magnetic field having sufficient strength to attract the magnetically responsive beads to an edge of the droplet or towards an edge of the droplet, or otherwise regionalize or aggregate beads within the droplet. The method may also include conducting on a droplet operations surface one or more droplet operations using the droplet without removing the magnetically responsive beads from the region of the magnetic field. The droplet operations may in some cases be electrode-mediated. The droplet operations may redistribute and/or circulate the magnetically responsive beads within the droplet. In some cases, the droplet may include a sample droplet may include a target analyte. The redistributing of the magnetically responsive beads may cause target analyte to bind to the magnetically responsive beads. In some cases, the droplet may include unbound substances in a wash buffer. The redistributing of the magnetically responsive beads causes unbound substances to be freed from interstices of an aggregated set or subset of the magnetically responsive beads.
摘要翻译： 本发明提供了一种在液滴中重新分布磁响应珠的方法。 该方法可以包括提供包括磁响应珠的液滴。 液滴可以设置在具有足够强度的磁场的区域内，以将磁响应珠吸引到液滴的边缘或朝向液滴的边缘，或以其他方式区分或聚集液滴内的珠粒。 该方法还可以包括在液滴操作表面上使用液滴进行一个或多个液滴操作，而不从磁场的区域移除磁响应珠。 在某些情况下，液滴操作可能是电极介导的。 液滴操作可以在液滴内重新分布和/或循环磁响应珠。 在一些情况下，液滴可以包括样品液滴可以包括靶分析物。 磁响应珠的重新分布可能导致目标分析物结合磁响应珠。 在一些情况下，液滴可以包括洗涤缓冲液中的未结合物质。 磁响应珠子的重新分布导致未结合物质从磁性响应珠粒的聚集或子集的空隙中释放出来。
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公开(公告)号：US08637317B2
公开(公告)日：2014-01-28
申请号：US12985409
申请日：2011-01-06
IPC分类号： G01N15/06
CPC分类号： B01F11/0071 , B01F13/0071 , B01F13/0076 , B01L3/502715 , B01L3/502761 , B01L3/502784 , B01L3/502792 , B01L7/52 , B01L7/525 , B01L2200/027 , B01L2300/0654 , B01L2300/0816 , B01L2300/0861 , B01L2300/0864 , B01L2300/0867 , B01L2300/089 , B01L2300/1827 , B01L2400/0406 , B01L2400/0415 , B01L2400/0421 , B01L2400/0424 , B01L2400/0427 , B01L2400/043 , B01L2400/0436 , B01L2400/0442 , B03C1/01 , B03C1/288 , B03C2201/18 , G01N2035/1046
摘要： The invention provides a method of redistributing magnetically responsive beads in a droplet. The method may include providing a droplet including magnetically responsive beads. The droplet may be provided within a region of a magnetic field having sufficient strength to attract the magnetically responsive beads to an edge of the droplet or towards an edge of the droplet, or otherwise regionalize or aggregate beads within the droplet. The method may also include conducting on a droplet operations surface one or more droplet operations using the droplet without removing the magnetically responsive beads from the region of the magnetic field. The droplet operations may in some cases be electrode-mediated. The droplet operations may redistribute and/or circulate the magnetically responsive beads within the droplet. In some cases, the droplet may include a sample droplet may include a target analyte. The redistributing of the magnetically responsive beads may cause target analyte to bind to the magnetically responsive beads. In some cases, the droplet may include unbound substances in a wash buffer. The redistributing of the magnetically responsive beads causes unbound substances to be freed from interstices of an aggregated set or subset of the magnetically responsive beads.
摘要翻译： 本发明提供了一种在液滴中重新分布磁响应珠的方法。 该方法可以包括提供包括磁响应珠的液滴。 液滴可以设置在具有足够强度的磁场的区域内，以将磁响应珠吸引到液滴的边缘或朝向液滴的边缘，或以其他方式区分或聚集液滴内的珠粒。 该方法还可以包括在液滴操作表面上使用液滴进行一个或多个液滴操作，而不从磁场的区域移除磁响应珠。 在某些情况下，液滴操作可能是电极介导的。 液滴操作可以在液滴内重新分布和/或循环磁响应珠。 在一些情况下，液滴可以包括样品液滴可以包括靶分析物。 磁响应珠的重新分布可能导致目标分析物结合磁响应珠。 在一些情况下，液滴可以包括洗涤缓冲液中的未结合物质。 磁响应珠子的重新分布导致未结合物质从磁性响应珠粒的聚集或子集的空隙中释放出来。
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公开(公告)号：US20110203930A1
公开(公告)日：2011-08-25
申请号：US13081927
申请日：2011-04-07
IPC分类号： B03C1/00
CPC分类号： G01N33/54333 , B01F11/0071 , B01F13/0071 , B01F13/0076 , B01L3/502715 , B01L3/502761 , B01L3/502784 , B01L3/502792 , B01L7/52 , B01L7/525 , B01L2200/027 , B01L2200/0647 , B01L2200/0668 , B01L2300/0654 , B01L2300/0816 , B01L2300/0861 , B01L2300/0864 , B01L2300/0867 , B01L2300/089 , B01L2300/1827 , B01L2400/0406 , B01L2400/0415 , B01L2400/0421 , B01L2400/0424 , B01L2400/0427 , B01L2400/043 , B01L2400/0436 , B01L2400/0442 , B03C1/02 , B03C1/288 , B03C1/30 , B03C5/005 , B03C2201/18 , B03C2201/26 , C12N15/1013 , G01N33/561 , G01N2035/1046 , Y10T436/11 , Y10T436/25 , Y10T436/25625 , Y10T436/2575
摘要： The present invention relates to bead incubating and washing on a droplet actuator. Methods for incubating magnetically responsive beads that are labeled with primary antibody, a sample (i.e., analyte), and secondary reporter antibodies on a magnet, on and off a magnet, and completely off a magnet are provided. Also provided are methods for washing magnetically responsive beads using shape-assisted merging of droplets. Also provided are methods for shape-mediated splitting, transporting, and dispensing of a sample droplet that contains magnetically responsive beads. The apparatuses and methods of the invention provide for rapid time to result and optimum detection of an analyte in an immunoassay.
摘要翻译： 本发明涉及在液滴致动器上的珠孵化和洗涤。 提供了用于将用一抗标记的磁响应珠，样品（即分析物）和二次报告基因抗体孵育在磁体上，磁铁上和从磁体上离开并完全离开磁体的方法。 还提供了使用形状辅助的液滴合并来洗涤磁响应珠的方法。 还提供了用于形状介导的分离，输送和分配含有磁响应珠的样品液滴的方法。 本发明的装置和方法提供了免疫测定中分析物的快速结果和最佳检测的时间。
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公开(公告)号：US20110076692A1
公开(公告)日：2011-03-31
申请号：US12569725
申请日：2009-09-29
IPC分类号： G01N33/573 , G01N33/53
CPC分类号： G01N33/6893 , G01N33/54366 , G01N2333/4712 , G01N2333/58 , G01N2800/32 , Y10T436/25
摘要： The present invention provides for the detection of cardiac markers on a droplet actuator. An aspect provides a method of assaying a cardiac marker in a biological sample from a subject, the method including providing a droplet actuator, loading the biological sample and assay reagents on the droplet actuator, executing droplet operations to create sample droplets from the sample and reagent droplets from the reagents on the droplet actuator, and executing droplet operations using the sample droplets and reagent droplets to produce a detectable signal indicative of the quantity of the cardiac marker in the biological sample. Still other aspects are provided.
摘要翻译： 本发明提供了在液滴致动器上检测心脏标志物。 一方面提供了从受试者的生物样品中测定心脏标志物的方法，所述方法包括提供液滴致动器，在液滴致动器上装载生物样品和测定试剂，执行液滴操作以从样品和试剂产生样品液滴 来自液滴致动器上的试剂的液滴，以及使用样品液滴和试剂液滴执行液滴操作，以产生指示生物样品中心脏标志物量的可检测信号。 还提供了其他方面。
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公开(公告)号：US08524506B2
公开(公告)日：2013-09-03
申请号：US11936289
申请日：2007-11-07
IPC分类号： G01N1/10
CPC分类号： B01F13/0071 , B01F13/0076 , B01F13/0084 , B01J2219/00479 , B01J2219/00653 , B01L3/502792 , B01L2300/089 , B01L2300/165 , B01L2400/0415 , B01L2400/0427 , C40B60/14 , G01N15/14 , G01N2035/1046 , G02B26/005 , Y10T436/11 , Y10T436/113332 , Y10T436/117497 , Y10T436/118339 , Y10T436/25 , Y10T436/25625 , Y10T436/2575
摘要： Methods for sampling a liquid flow are provided. The method includes supplying a continuous liquid flow from a continuous flow fluid input source to a surface along a first flow path. The method additionally includes sampling the continuous liquid flow by performing an electric field-based technique to split off a sample droplet from a portion of the liquid flow, whereby the sample droplet is distinct from the liquid flow and controllable independently of the liquid flow, wherein the electric field-based technique is performed by providing a set of electrodes on the surface and selectively biasing the set of electrodes, whereby the sample droplet is formed on one of the set of electrodes.
摘要翻译： 提供了液体取样方法。 该方法包括将连续的液体流从连续流体流体输入源提供到沿着第一流动路径的表面。 该方法另外包括通过执行基于电场的技术对液体流的一部分分离样品液滴来对连续液体流进行采样，由此样品液滴与液体流不同，并且可独立于液体流动而控制，其中 通过在表面上设置一组电极并选择性地偏置该组电极来执行基于电场的技术，由此在一组电极中形成样品液滴。
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公开(公告)号：US20130146455A1
公开(公告)日：2013-06-13
申请号：US13759416
申请日：2013-02-05
IPC分类号： C25B9/00
CPC分类号： B01L3/50273 , B01F11/0071 , B01F13/0071 , B01F13/0076 , B01F13/0084 , B01L3/00 , B01L3/5027 , B01L3/502784 , B01L3/502792 , B01L2200/06 , B01L2200/0605 , B01L2200/10 , B01L2300/089 , B01L2300/161 , B01L2300/165 , B01L2400/0415 , B01L2400/0427 , B41J2002/14395 , C25B9/00 , G01N27/44791 , G02B26/005
摘要： Methods are provided for manipulating droplets. The methods include providing the droplet on a surface comprising an array of electrodes and a substantially co-planer array of reference elements, wherein the droplet is disposed on a first one of the electrodes, and the droplet at least partially overlaps a second one of the electrodes and an intervening one of the reference elements disposed between the first and second electrodes. The methods further include activating the first and second electrodes to spread at least a portion of the droplet across the second electrode and deactivating the first electrode to move the droplet from the first electrode to the second electrode.
摘要翻译： 提供了用于操纵液滴的方法。 所述方法包括在包括电极阵列和基本上共平面的参考元件阵列的表面上提供液滴，其中液滴设置在电极的第一个上，并且液滴至少部分地与第二个 电极和设置在第一和第二电极之间的参考元件中的插入件之一。 所述方法还包括激活第一和第二电极以将液滴的至少一部分扩散穿过第二电极，并且去激活第一电极以使液滴从第一电极移动到第二电极。
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公开(公告)号：US08048628B2
公开(公告)日：2011-11-01
申请号：US11753318
申请日：2007-05-24
CPC分类号： G01N27/44769 , B01F13/0071 , B01F13/0076 , B01L3/502707 , B01L3/502792 , B01L7/52 , B01L2200/0673 , B01L2200/10 , B01L2200/12 , B01L2300/0645 , B01L2300/0663 , B01L2300/0819 , B01L2300/0864 , B01L2300/0867 , B01L2300/0887 , B01L2300/089 , B01L2300/12 , B01L2300/1827 , B01L2400/0415 , B01L2400/0424 , B81B3/0021 , B81B2201/058 , B81C1/00119 , C12Q1/6846 , G01N27/447 , G01N27/44791 , G05D7/0694 , H01L21/6715 , Y10T436/2575
摘要： Methods for amplifying nucleic acid, such as DNA or RNA, on a printed circuit board (PCB) substrate are disclosed. The amplification can be achieved through a variety of methods such as thermocycling or isothermally. The printed circuit board substrate can comprise an array of electrodes for transporting droplets and can be part of a sandwich structure including a top plate parallel to the printed circuit board substrate.
摘要翻译： 公开了在印刷电路板（PCB）衬底上放大核酸如DNA或RNA的方法。 扩增可以通过各种方法如热循环或等温进行。 印刷电路板基板可以包括用于输送液滴的电极阵列，并且可以是包括平行于印刷电路板基板的顶板的夹层结构的一部分。
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公开(公告)号：US20100236927A1
公开(公告)日：2010-09-23
申请号：US12681840
申请日：2008-10-17
IPC分类号： G01N27/26
CPC分类号： B01L3/502792 , B01L2300/0645 , B01L2300/0816 , B01L2300/0887 , B01L2300/161 , B01L2400/0427 , Y10T436/11 , Y10T436/25 , Y10T436/2575
摘要： A droplet actuator comprising a substrate comprising an electrode coupled to a voltage source, wherein the droplet actuator is configured such that when voltage is applied to the electrode, an electrostatic energy gradient is established at a surface of the substrate which causes a droplet to be transported in a direction established by the energy gradient. Related methods and other embodiments are also provided.
摘要翻译： 一种液滴致动器，包括包括耦合到电压源的电极的基板，其中所述液滴致动器被配置为使得当电压被施加到所述电极时，在所述基板的表面处建立静电能量梯度，这导致液滴被输送 在能量梯度建立的方向上。 还提供了相关方法和其它实施例。
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公开(公告)号：US07759132B2
公开(公告)日：2010-07-20
申请号：US11585491
申请日：2006-10-23
CPC分类号： B01F13/0071 , B01F13/0076 , B01F13/0084 , B01J2219/00479 , B01J2219/00653 , B01L3/502792 , B01L2300/089 , B01L2300/165 , B01L2400/0415 , B01L2400/0427 , C40B60/14 , G01N15/14 , G01N2035/1046 , G02B26/005 , Y10T436/11 , Y10T436/113332 , Y10T436/117497 , Y10T436/118339 , Y10T436/25 , Y10T436/25625 , Y10T436/2575
摘要： Methods for performing microfluidic sampling are provided. The method includes providing a substrate including an arrangement of first, second and third electrodes, wherein the second electrode is interposed between the first and third electrodes. The method additionally includes causing a fluid input to continuously flow to the first electrode and biasing the first, second and third electrodes to a first voltage to cause a portion of the fluid input to spread across the second and third electrodes. The method further includes biasing the second electrode to a second voltage different from the first voltage to form a droplet on the third electrode, the droplet being separate from the fluid input.
摘要翻译： 提供了执行微流体取样的方法。 该方法包括提供包括第一，第二和第三电极的布置的基板，其中第二电极介于第一和第三电极之间。 该方法还包括使流体输入连续地流动到第一电极并且将第一，第二和第三电极偏压到第一电压以使流体输入的一部分扩展穿过第二和第三电极。 该方法还包括将第二电极偏压到不同于第一电压的第二电压，以在第三电极上形成液滴，液滴与流体输入分离。
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