Patents Assigned to PALOGEN, INC.
  • Patent number: 11747320
    Abstract: A method of manufacturing and using a nanofluidic NAND transistor sensor array scheme including a plurality of nanopore channel pillars, a plurality of respective fluidic channels, a plurality of gate electrodes, a top chamber, and a bottom chamber includes placing a sensor substrate in an electrolyte solution comprising biomolecules and DNA. The method also includes placing first and second electrodes in the electrolyte solution (Vpp and Vss of the nanofluidic NAND transistor); forming the nanopore channel pillars; placing the gate electrodes and gate insulators in respective walls of the nanopore channel pillars; applying an electrophoretic bias in the first and second electrodes; applying a bias in the gate electrodes; detecting a change in an electrode current in the electrolyte solution caused by a change in a gate voltage; and detecting a change in a surface charge in nanopore channel electrodes in the respective fluidic channels.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: September 5, 2023
    Assignee: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Publication number: 20230228710
    Abstract: A method of synthesizing an oligonucleotide using a nanofluidic device including a plurality of nanopore channels, a plurality of electrodes, and an electrolyte solution, includes coupling a primer to an inner wall of a nanopore channel of the plurality of nanopore channels, the primer having a protecting group. The method also includes applying a voltage to an electrode of the plurality of electrodes that corresponds to the nanopore channel to produce an acid from the electrolyte solution at the electrode. The electrode includes an anode and a cathode disposed at opposite sides of the nanopore channel. The method further includes the acid removing the protecting group from the primer. Moreover, the method includes coupling a nucleotide to the primer with the protecting group removed to form an intermediate product. In addition, the method includes repeating the steps on the intermediate product until the oligonucleotide is synthesized.
    Type: Application
    Filed: March 27, 2023
    Publication date: July 20, 2023
    Applicant: PALOGEN, INC.
    Inventors: Bita Karimirad, Kyung Joon Han
  • Publication number: 20230204562
    Abstract: A nanopore device for detecting charged biopolymer molecules and defining a nanochannel, includes a first gating nanoelectrode addressing a first end of the nanochannel. The device also includes a second gating nanoelectrode addressing a second end of the nanochannel opposite the first end. The device further includes a first sensing nanoelectrode addressing a first location in the nanochannel between the first and second ends.
    Type: Application
    Filed: February 28, 2023
    Publication date: June 29, 2023
    Applicant: PALOGEN, INC.
    Inventors: Bita Karimirad, Kyung Joon Han, Reza Rahighi Yazdi, Won Jong Yoo
  • Patent number: 11686701
    Abstract: A method of calibrating a nanofluidic device including a plurality of nanopore channels, a plurality of gating nanoelectrodes, and a plurality of sensing nanoelectrodes, includes applying a selecting voltage across a gating nanoelectrode of the plurality of gating nanoelectrodes to select a nanopore channel. The method also includes tuning the nanopore channel by applying a first biasing voltage across a sensing electrode of the plurality of sensing nanoelectrodes, and receiving a plurality of currents over a plurality of frequencies. The method further includes generating a calibration data set from the pluralities of frequencies and currents. Moreover, the method includes comparing the calibration data set with a reference data set. In addition, the method includes when the calibration data set differs from the reference data set by more than a predetermined threshold, repeating the method with a second biasing voltage different from the first biasing voltage.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: June 27, 2023
    Assignee: PALOGEN, INC.
    Inventors: Imran Ali, Kyung Joon Han, Kang-Yoon Lee
  • Patent number: 11614424
    Abstract: A method of synthesizing an oligonucleotide using a nanofluidic device including a plurality of nanopore channels, a plurality of electrodes, and an electrolyte solution, includes coupling a primer to an inner wall of a nanopore channel of the plurality of nanopore channels, the primer having a protecting group. The method also includes applying a voltage to an electrode of the plurality of electrodes that corresponds to the nanopore channel to produce an acid from the electrolyte solution at the electrode. The electrode includes an anode and a cathode disposed at opposite sides of the nanopore channel. The method further includes the acid removing the protecting group from the primer. Moreover, the method includes coupling a nucleotide to the primer with the protecting group removed to form an intermediate product. In addition, the method includes repeating the steps on the intermediate product until the oligonucleotide is synthesized.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 28, 2023
    Assignee: PALOGEN, INC.
    Inventors: Bita Karimirad, Kyung Joon Han
  • Publication number: 20220276219
    Abstract: A 3D nanopore device for characterizing biopolymer molecules includes a first selecting layer having a first axis of selection. The device also includes a second selecting layer disposed adjacent the first selecting layer and having a second axis of selection orthogonal to the first axis of selection. The device further includes an third electrode layer disposed adjacent the second selecting layer, such that the first selecting layer, the second selecting layer, and the third electrode layer form a stack of layers along a Z axis and define a plurality of nanopore pillars.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Applicant: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Patent number: 11371981
    Abstract: A 3D nanopore device for characterizing biopolymer molecules includes a first selecting layer having a first axis of selection. The device also includes a second selecting layer disposed adjacent the first selecting layer and having a second axis of selection orthogonal to the first axis of selection. The device further includes an third electrode layer disposed adjacent the second selecting layer, such that the first selecting layer, the second selecting layer, and the third electrode layer form a stack of layers along a Z axis and define a plurality of nanopore pillars.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: June 28, 2022
    Assignee: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Publication number: 20220042966
    Abstract: A method of manufacturing and using a nanofluidic NAND transistor sensor array scheme including a plurality of nanopore channel pillars, a plurality of respective fluidic channels, a plurality of gate electrodes, a top chamber, and a bottom chamber includes placing a sensor substrate in an electrolyte solution comprising biomolecules and DNA. The method also includes placing first and second electrodes in the electrolyte solution (Vpp and Vss of the nanofluidic NAND transistor); forming the nanopore channel pillars; placing the gate electrodes and gate insulators in respective walls of the nanopore channel pillars; applying an electrophoretic bias in the first and second electrodes; applying a bias in the gate electrodes; detecting a change in an electrode current in the electrolyte solution caused by a change in a gate voltage; and detecting a change in a surface charge in nanopore channel electrodes in the respective fluidic channels.
    Type: Application
    Filed: July 19, 2021
    Publication date: February 10, 2022
    Applicant: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Publication number: 20210382034
    Abstract: A 3D nanopore device for characterizing biopolymer molecules includes a first selecting layer having a first axis of selection. The device also includes a second selecting layer disposed adjacent the first selecting layer and having a second axis of selection orthogonal to the first axis of selection. The device further includes an third electrode layer disposed adjacent the second selecting layer, such that the first selecting layer, the second selecting layer, and the third electrode layer form a stack of layers along a Z axis and define a plurality of nanopore pillars.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 9, 2021
    Applicant: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Patent number: 11067561
    Abstract: A method of manufacturing and using a nanofluidic NAND transistor sensor array scheme including a plurality of nanopore channel pillars, a plurality of respective fluidic channels, a plurality of gate electrodes, a top chamber, and a bottom chamber includes placing a sensor substrate in an electrolyte solution comprising biomolecules and DNA. The method also includes placing first and second electrodes in the electrolyte solution (Vpp and Vss of the nanofluidic NAND transistor); forming the nanopore channel pillars; placing the gate electrodes and gate insulators in respective walls of the nanopore channel pillars; applying an electrophoretic bias in the first and second electrodes; applying a bias in the gate electrodes; detecting a change in an electrode current in the electrolyte solution caused by a change in a gate voltage; and detecting a change in a surface charge in nanopore channel electrodes in the respective fluidic channels.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: July 20, 2021
    Assignee: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Patent number: 11041844
    Abstract: A 3D nanopore device for characterizing biopolymer molecules includes a first selecting layer having a first axis of selection. The device also includes a second selecting layer disposed adjacent the first selecting layer and having a second axis of selection orthogonal to the first axis of selection. The device further includes an third electrode layer disposed adjacent the second selecting layer, such that the first selecting layer, the second selecting layer, and the third electrode layer form a stack of layers along a Z axis and define a plurality of nanopore pillars.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 22, 2021
    Assignee: PALOGEN, INC.
    Inventors: Kyung Joon Han, Jungkee Yoon
  • Publication number: 20200348260
    Abstract: A method of synthesizing an oligonucleotide using a nanofluidic device including a plurality of nanopore channels, a plurality of electrodes, and an electrolyte solution, includes coupling a primer to an inner wall of a nanopore channel of the plurality of nanopore channels, the primer having a protecting group. The method also includes applying a voltage to an electrode of the plurality of electrodes that corresponds to the nanopore channel to produce an acid from the electrolyte solution at the electrode. The electrode includes an anode and a cathode disposed at opposite sides of the nanopore channel. The method further includes the acid removing the protecting group from the primer. Moreover, the method includes coupling a nucleotide to the primer with the protecting group removed to form an intermediate product. In addition, the method includes repeating the steps on the intermediate product until the oligonucleotide is synthesized.
    Type: Application
    Filed: March 27, 2020
    Publication date: November 5, 2020
    Applicant: PALOGEN, INC.
    Inventors: Bita Karimirad, Kyung Joon Han
  • Publication number: 20200033319
    Abstract: A nanopore device for detecting charged biopolymer molecules and defining a nanochannel, includes a first gating nanoelectrode addressing a first end of the nanochannel. The device also includes a second gating nanoelectrode addressing a second end of the nanochannel opposite the first end. The device further includes a first sensing nanoelectrode addressing a first location in the nanochannel between the first and second ends.
    Type: Application
    Filed: July 27, 2019
    Publication date: January 30, 2020
    Applicant: PALOGEN, INC.
    Inventors: Bita Karimirad, Kyung Joon Han, Reza Rahighi Yazdi, Won Jong Yoo