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公开(公告)号:US20210223203A1
公开(公告)日:2021-07-22
申请号:US17056488
申请日:2018-10-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Viktor Shkolnikov , Yang Lei , Daixi Xin
IPC: G01N27/447 , B03C5/00 , B03C5/02
Abstract: In example implementations, an apparatus is provided. The apparatus includes a dielectrophoresis (DEP) separator, an electrical field generator, a tracking system, and a controller. The DEP separator is to separate a plurality of different particles. The electrical field generator is coupled to the DEP separator to apply a frequency to the DEP separator. The tracking system is to track a movement of a type of particles in the DEP separator. The controller is in communication with the electrical field generator to control the frequency and the tracking system to track the separation. The controller is to calculate a cross-over frequency from a cross-over frequency distribution for the type of particles based on a frequency sweep performed on the type of particles and the movement of the type of particles that is tracked.
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公开(公告)号:US20210190687A1
公开(公告)日:2021-06-24
申请号:US16074331
申请日:2016-04-21
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Ning Ge , Milo Overbay , James Abbott , Anita Rogacs , Viktor Shkolnikov
Abstract: A surface enhanced luminescence (SELS) sensor may include a substrate and nano fingers projecting from the substrate. Each of the nano fingers may include a polymer pillar having a sidewall and a top, a coating layer covering the sidewall and a metal cap supported by and in contact with the top of the pillar.
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公开(公告)号:US20210190616A1
公开(公告)日:2021-06-24
申请号:US16074349
申请日:2016-04-20
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Ning Ge , Alexander Govyadinov , Anita Rogacs , Viktor Shkolnikov
Abstract: A microfluidic pressure sensor may include a reference chamber, a sensed volume, a microfluidic channel connecting an interior of the reference chamber to an interior of the sensed volume, a volume of liquid contained and movable within the microfluidic channel while occluding the microfluidic channel and a sensor to output signals indicating positioning of the volume of liquid along the microfluidic channel. Positioning of the volume of liquid along microfluidic channel indicates a pressure of the sensed volume.
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公开(公告)号:US20210138467A1
公开(公告)日:2021-05-13
申请号:US16605162
申请日:2018-01-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Viktor Shkolnikov , Alexander N. Govyadinov , Pavel Kornilovich
Abstract: An object focuser may include a substrate, a sample fluid passage supported by the substrate, a first inertial pump supported by the substrate to pump a sample fluid entraining an object through the sample fluid passage, a first sheath fluid passage, a second inertial pump supported by the substrate to pump a first sheath fluid through the first sheath fluid passage, a second sheath fluid passage and a second inertial pump supported by the substrate to pump a second sheath fluid through the second sheath fluid passage. The first sheath fluid passage and the second sheath fluid passage are connected to the sample fluid passage at a convergence on opposite sides of the sample fluid passage.
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公开(公告)号:US20210138453A1
公开(公告)日:2021-05-13
申请号:US17047359
申请日:2018-07-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Viktor Shkolnikov , DAIXI XIN , Ken Ward
Abstract: An example system includes a well plate having at least one well, an array of electrodes positioned on a surface of a bottom floor of the well, and a controller to direct electrical voltage to the electrodes to generate a non-uniform electrical field. The electrical field is to direct an object in the electrical field to a target position in the well.
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公开(公告)号:US20200284814A1
公开(公告)日:2020-09-10
申请号:US16645384
申请日:2017-10-13
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Viktor Shkolnikov , Adam Higgins , Jeffrey A. Nielsen
Abstract: A system for partitioning a liquid sample, the system including: an ejection device, the ejection device comprising an array of nozzles, wherein adjacent nozzles are separated by a constant distance in a first axis; and a microfluidics device including: a plurality of intake ports to receive a deposited droplet, wherein pairs of intake ports are separated by the same constant distance in the same first axis such that adjacent nozzles can simultaneously eject droplets to different intake ports.
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公开(公告)号:US10712279B2
公开(公告)日:2020-07-14
申请号:US16097962
申请日:2016-07-22
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Ning Ge , Helen A. Holder , Steven J. Simske , Anita Rogacs , Viktor Shkolnikov
Abstract: An activatable SEL sensor stage may include a substrate, cation metal-based material masses supported by the substrate and isolated from one another and dielectric capping layer over the cation metal-based material masses to inhibit oxidation of the cation metal-based material masses.
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公开(公告)号:US10539507B2
公开(公告)日:2020-01-21
申请号:US15764445
申请日:2016-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Ning Ge , Helen A Holder , Anita Rogacs , Viktor Shkolnikov
Abstract: An analyte detection package includes a chamber, a surface-enhanced luminescence analyte stage within the chamber, and a tunable lens integrated with the package to focus radiation onto the analyte stage.
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公开(公告)号:US10520443B2
公开(公告)日:2019-12-31
申请号:US15764240
申请日:2016-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Anita Rogacs , Viktor Shkolnikov , Ning Ge
Abstract: An analyte detection system includes an analyte detection package to be presented to a reading device, and a focus mechanism to adjust a focal point of the analyte detection package relative to the reading device, with the analyte detection package including a surface-enhanced luminescence analyte stage, the reading device including optics to receive scattered radiation emitted luminescence from the analyte stage, and the focus mechanism to adjust the focal point relative to the optics.
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公开(公告)号:US20180259433A1
公开(公告)日:2018-09-13
申请号:US15756965
申请日:2015-10-23
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Viktor Shkolnikov , Anita Rogacs
CPC classification number: G01N1/4005 , B01D61/38 , B01D2313/345 , G01N21/658 , G01N2001/4011 , G01N2001/4038
Abstract: A target analyte is extracted out of a sample fluid in a sample fluid passage by diffusing the target analyte through a supported liquid membrane to a product fluid passage. Extraction of the target analyte is accelerated by applying an electric field across and perpendicular to the supported liquid membrane with electrodes. Passage of selected ions across an exchange membrane extending between one of the electrodes and the supported liquid membrane is inhibited.
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