公开(公告)号：US20150285792A1

公开(公告)日：2015-10-08

申请号：US14746276

申请日：2015-06-22

Applicant: Advanced Liquid Logic, Inc.

Inventor： Ramakrishna Sista ,  Vamsee K. Pamula ,  Vijay Srinivasan ,  Michael G. Pollack ,  Allen Eckhardt

IPC: G01N33/543

CPC classification number: G01N33/54326 ,  B01F11/0071 ,  B01F13/0071 ,  B01F13/0076 ,  B01F13/0809 ,  B01L3/50273 ,  B01L3/502761 ,  B01L3/502792 ,  B01L7/52 ,  B01L7/525 ,  B01L2200/027 ,  B01L2200/0647 ,  B01L2200/0673 ,  B01L2300/06 ,  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 ,  G01N1/38 ,  G01N2001/386 ,  G01N2035/1046 ,  Y10T436/11 ,  Y10T436/25 ,  Y10T436/25625 ,  Y10T436/2575

Abstract: The invention provides a method of circulating magnetically responsive beads within a droplet in a droplet actuator. The invention also provides methods for splitting droplets. The invention, in one embodiment, makes use of a droplet actuator with top and bottom substrates, a plurality of magnetic fields respectively present proximate the top and bottom substrates, wherein at least one of the magnet fields is selectively alterable, and a plurality of droplet operations electrodes positioned along at least one of the top and bottom surfaces. A droplet is positioned between the top and bottom surfaces and at least one of the magnetic fields is selectively altered.

Abstract translation: 本发明提供了一种在液滴致动器中的液滴内循环磁响应珠的方法。 本发明还提供了分裂液滴的方法。 在一个实施例中，本发明利用具有顶部和底部基底的液滴致动器，分别存在于顶部和底部基底附近的多个磁场，其中至少一个磁场可选择性地改变，并且多个液滴 沿着顶表面和底表面中的至少一个定位的操作电极。 液滴位于顶表面和底表面之间，并且至少一个磁场被选择性地改变。

公开(公告)号：US09097662B2

公开(公告)日：2015-08-04

申请号：US14526928

申请日：2014-10-29

Applicant: ADVANCED LIQUID LOGIC, INC.

Inventor： Michael G. Pollack ,  Vamsee K. Pamula ,  Vijay Srinivasan

IPC: G01N1/18 ,  G01N35/10 ,  G01N15/00 ,  G01N27/447

CPC classification number: G01N27/447 ,  B01L3/502761 ,  B01L3/502792 ,  B01L2200/0668 ,  B01L2200/0673 ,  B01L2300/0816 ,  B01L2300/0864 ,  B01L2300/0867 ,  B01L2300/089 ,  B01L2400/0427 ,  C12Q1/6806 ,  G01N15/1031 ,  G01N27/44717 ,  G01N27/44721 ,  G01N33/543 ,  G01N35/10 ,  G01N2015/0065 ,  G01N2015/0088 ,  G01N2015/1081 ,  G01N2035/1034 ,  Y10T436/11 ,  Y10T436/118339 ,  Y10T436/25 ,  Y10T436/2575

Abstract: The present invention relates to droplet-based particle sorting. According to one embodiment, a droplet microactuator is provided and includes: (a) a suspension of particles; and (b) electrodes arranged for conducting droplet operations using droplets comprising particles. A method of transporting a particle is also provided, wherein the method includes providing a droplet comprising the particle and transporting the droplet on a droplet microactuator.

Abstract translation: 本发明涉及基于液滴的颗粒分选。 根据一个实施例，提供了液滴微致动器，其包括：（a）颗粒悬浮液; 和（b）布置成使用包含颗粒的液滴进行液滴操作的电极。 还提供了输送颗粒的方法，其中所述方法包括提供包含颗粒的液滴并将液滴输送到液滴微致动器上。

公开(公告)号：US20150184219A1

公开(公告)日：2015-07-02

申请号：US14644989

申请日：2015-03-11

Applicant: ADVANCED LIQUID LOGIC, INC.

Inventor： Allen E Eckhardt ,  Carrie Graham ,  Ramakrishna Sista ,  Vamsee K. Pamula ,  Theodore Winger ,  Tong Wang ,  Yalin Xiong ,  Ning Wu ,  Sanjay Saha ,  Gajendrasinh Raolji ,  Raveendra Dayam

IPC: C12Q1/34 ,  C12Q1/44 ,  C07D413/12 ,  C07D405/12 ,  C07D311/16 ,  C07H17/075

CPC classification number: C12Q1/40 ,  B01L3/502784 ,  B01L2300/0654 ,  B01L2300/0816 ,  B01L2300/18 ,  B01L2400/0427 ,  B01L2400/043 ,  C07D311/16 ,  C07D311/18 ,  C07D311/20 ,  C07D405/12 ,  C07D413/12 ,  C07H15/203 ,  C07H17/075 ,  C12Q1/25 ,  C12Q1/34 ,  C12Q1/44 ,  C12Q1/54 ,  C12Y302/01023 ,  G01N21/6452 ,  G01N33/5438 ,  G01N2333/916 ,  G01N2333/926 ,  G01N2333/938 ,  G01N2800/04

Abstract: The invention is directed to droplet actuator devices and assay methods. The invention includes assay methods of conducting an assay comprising combining a sample with an umbelliferyl derivative, wherein the sample potentially comprises an enzyme capable of cleaving the umbelliferyl derivative and where the umbelliferyl derivative comprises an umbelliferyl core modified with one or more modifying moieties.

Abstract translation: 本发明涉及液滴致动器装置和测定方法。 本发明包括进行测定的测定方法，其包括将样品与伞形酮基衍生物组合，其中所述样品潜在地包含能够切割伞形变体基衍生物的酶，并且其中伞形载体衍生物包含用一个或多个修饰部分修饰的伞形酮核心。

公开(公告)号：US20150174577A1

公开(公告)日：2015-06-25

申请号：US14639612

申请日：2015-03-05

Applicant: Advanced Liquid Logic, Inc. ,  Duke University

Inventor： Vijay Srinivasan ,  Michael G. Pollack ,  Philip Y. Paik ,  Vamsee K. Pamula ,  Richard B. Fair

IPC: B01L3/00 ,  B03C5/02 ,  B81B1/00

CPC classification number: B01L3/502792 ,  B01F13/0071 ,  B01F13/0076 ,  B01L3/502715 ,  B01L3/50273 ,  B01L3/502761 ,  B01L3/502784 ,  B01L7/52 ,  B01L7/525 ,  B01L7/54 ,  B01L2200/0647 ,  B01L2200/0673 ,  B01L2200/10 ,  B01L2200/147 ,  B01L2300/0816 ,  B01L2300/0861 ,  B01L2300/089 ,  B01L2300/1827 ,  B01L2400/0427 ,  B01L2400/0448 ,  B03C5/02 ,  B81B1/00 ,  G01N27/447 ,  G01N2035/1046

Abstract: The present invention relates to filler fluids for droplet operations. According to one embodiment of this aspect, a droplet microactuator is provided and includes: (a) a first substrate comprising electrodes configured for conducting droplet operations on a surface of the substrate; (b) a second substrate spaced from the surface of the substrate by a distance sufficient to define an interior volume between the first substrate and second substrate, wherein the distance is sufficient to contain a droplet disposed in the space on the first substrate; and (c) a droplet arranged in the interior volume and arranged with respect to the electrodes in a manner which permits droplet operations to be effected on the droplet using the electrodes.

Abstract translation: 本发明涉及用于液滴操作的填充流体。 根据该方面的一个实施例，提供了液滴微致动器，其包括：（a）第一基板，其包括被配置用于在所述基板的表面上进行液滴操作的电极; （b）第二衬底，其与衬底的表面间隔足以限定第一衬底和第二衬底之间的内部空间的距离，其中所述距离足以容纳设置在第一衬底上的空间中的液滴; 和（c）布置在内部体积中并且以允许使用电极对液滴进行液滴操作的方式相对于电极布置的液滴。

公开(公告)号：US20150068903A1

公开(公告)日：2015-03-12

申请号：US14498418

申请日：2014-09-26

Applicant: Advanced Liquid Logic, Inc.

Inventor： Vijay Srinivasan ,  Arjun Sudarsan ,  Vamsee K. Pamula ,  Michael G. Pollack ,  Ramakrishna Sista ,  Raymond Kozikowski ,  Nicole Bell

IPC: G01N27/447

CPC classification number: G01N27/44756 ,  B01F13/0071 ,  B01F13/0076 ,  B01L3/502707 ,  B01L3/502792 ,  B01L2300/0816 ,  B01L2300/0819 ,  B01L2400/0427 ,  B01L2400/0688 ,  B01L2400/086 ,  B29C59/02 ,  B41J2/1601 ,  B81B7/0061 ,  B81B2201/058 ,  B81B2201/13 ,  F04B17/00 ,  F04B19/006

Abstract: The invention provides droplet actuators with droplet operations surfaces for manipulating droplets, e.g., by conducting droplet operations. The droplet operations surfaces are typically exposed to a droplet operations gap. One or more regions of a droplet operation surface may include patterned topographic features. The invention also provides a droplet actuator in which one or both gap-facing droplet operations surfaces is formed using a removable film. The removable film may, in various embodiments, also include other components ordinarily associated with the droplet actuator substrate, such as the dielectric layer and the electrodes. Further, the invention provides droplet actuator devices and methods for coupling and/or sealing substrates of a droplet actuator, such as techniques for self-aligning assembly of droplet actuator substrates. The invention provides droplet actuators and methods of disassembling the droplet actuator in order to provide access for cleaning and/or recycling of droplet actuator surfaces.

Abstract translation: 本发明提供了液滴致动器，其具有用于操纵液滴的液滴操作表面，例如通过进行液滴操作。 液滴操作表面通常暴露于液滴操作间隙。 液滴操作表面的一个或多个区域可以包括图案化的地形特征。 本发明还提供一种液滴致动器，其中使用可去除的膜形成一个或两个面向间隙的液滴操作表面。 在各种实施例中，可除去膜可以包括通常与液滴致动器基底（例如电介质层和电极）相关联的其它部件。 此外，本发明提供了液滴致动器装置和用于联接和/或密封液滴致动器的基板的方法，例如用于液滴致动器基板的自对准组装的技术。 本发明提供了液滴致动器和拆卸液滴致动器的方法，以便为液滴致动器表面的清洁和/或回收提供通路。

公开(公告)号：US20150034485A1

公开(公告)日：2015-02-05

申请号：US14466193

申请日：2014-08-22

Applicant: Advanced Liquid Logic, Inc.

Inventor： Michael G. Pollack ,  Vamsee K. Pamula ,  Ramakrishna Sista ,  Arjun Sudarsan

IPC: G01N33/561 ,  B03C1/30 ,  B03C5/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US12181467B2

公开(公告)日：2024-12-31

申请号：US16455506

申请日：2019-06-27

Applicant: Advanced Liquid Logic, Inc. ,  Duke University

Inventor： Ramakrishna Sista ,  Vamsee K. Pamula ,  Michael G. Pollack ,  Vijay Srinivasan ,  Allen E. Eckhardt ,  Richard B. Fair

IPC: G01N33/543 ,  B01L3/00 ,  C12M1/12 ,  G01N27/447 ,  G01N35/00 ,  G01N35/10

Abstract: A method comprising effecting a change in a shape of a droplet, wherein the droplet is disposed over a substrate in sensing proximity to a sensor and the droplet has a starting surface area exposed to the sensor; and producing an expanded surface area of the droplet in the sensing proximity exposed to the sensor, wherein the expanded surface area exposed to the sensor is greater than the starting surface area exposed to the sensor.

公开(公告)号：US11789015B2

公开(公告)日：2023-10-17

申请号：US16948074

申请日：2020-09-01

Applicant: Advanced Liquid Logic, Inc.

Inventor： Vamsee K. Pamula ,  Ramakrishna Sista ,  Vijay Srinivasan ,  Michael G. Pollack ,  Allen E. Eckhardt

IPC: G01N33/543 ,  B01L3/00 ,  B01F31/65 ,  B01F33/451 ,  B01F33/302 ,  B01F33/3031 ,  G01N1/38 ,  B01L7/00 ,  G01N35/10

CPC classification number: G01N33/54326 ,  B01F31/65 ,  B01F33/3021 ,  B01F33/3031 ,  B01F33/451 ,  B01L3/50273 ,  B01L3/502761 ,  B01L3/502792 ,  G01N1/38 ,  B01L7/52 ,  B01L7/525 ,  B01L2200/027 ,  B01L2200/0647 ,  B01L2200/0673 ,  B01L2300/06 ,  B01L2300/0654 ,  B01L2300/089 ,  B01L2300/0816 ,  B01L2300/0861 ,  B01L2300/0864 ,  B01L2300/0867 ,  B01L2300/1827 ,  B01L2400/043 ,  B01L2400/0406 ,  B01L2400/0415 ,  B01L2400/0421 ,  B01L2400/0424 ,  B01L2400/0427 ,  B01L2400/0436 ,  B01L2400/0442 ,  G01N2001/386 ,  G01N2035/1046 ,  Y10T436/11 ,  Y10T436/25 ,  Y10T436/2575 ,  Y10T436/25625

Abstract: Provided herein are methods of splitting droplets containing magnetically responsive beads in a droplet actuator. A droplet actuator having a plurality of droplet operations electrodes configured to transport the droplet, and a magnetic field present at the droplet operations electrodes, is provided. The magnetically responsive beads in the droplet are immobilized using the magnetic field and the plurality of droplet operations electrodes are used to split the droplet into first and second droplets while the magnetically responsive beads remain substantially immobilized.

公开(公告)号：US11255809B2

公开(公告)日：2022-02-22

申请号：US16788187

申请日：2020-02-11

Applicant: Advanced Liquid Logic, Inc. ,  Duke University

Inventor： Vamsee K. Pamula ,  Vijay Srinivasan ,  Michael G. Pollack ,  Richard B. Fair

IPC: G01N27/26 ,  B01F13/00 ,  B01L3/00 ,  B01L7/00 ,  G01N35/00 ,  C12Q1/686 ,  C12Q1/6869 ,  G01N27/447 ,  G01N27/327 ,  G01N27/416 ,  B01L3/02

Abstract: The present invention relates to droplet-based surface modification and washing. According to one embodiment, a method of splitting a droplet is provided, the method including providing a droplet microactuator including a droplet including one or more beads and immobilizing at least one of the one or more beads. The method further includes conducting one or more droplet operations to divide the droplet to yield a set of droplets including a droplet including the one or more immobilized beads and a droplet substantially lacking the one or more immobilized beads.

公开(公告)号：US10809254B2

公开(公告)日：2020-10-20

申请号：US16191270

申请日：2018-11-14

Applicant: Advanced Liquid Logic, Inc.

Inventor： Vamsee K. Pamula ,  Ramakrishna Sista ,  Vijay Srinivasan ,  Michael G. Pollack ,  Allen E. Eckhardt

IPC: G01N1/40 ,  G01N1/00 ,  G01N1/10 ,  G01N1/22 ,  G01N1/18 ,  G01N35/00 ,  G01N1/38 ,  B01L3/00 ,  G01N33/543 ,  B01F11/00 ,  B01F13/00 ,  B01F13/08 ,  B01L7/00 ,  G01N35/10

Abstract: Provided herein are methods of splitting droplets containing magnetically responsive beads in a droplet actuator. A droplet actuator having a plurality of droplet operations electrodes configured to transport the droplet, and a magnetic field present at the droplet operations electrodes, is provided. The magnetically responsive beads in the droplet are immobilized using the magnetic field and the plurality of droplet operations electrodes are used to split the droplet into first and second droplets while the magnetically responsive beads remain substantially immobilized.