公开(公告)号：US10753922B2

公开(公告)日：2020-08-25

申请号：US15779931

申请日：2016-11-29

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Rena Akahori ,  Kenichi Takeda ,  Itaru Yanagi

IPC: G01N33/487 ,  G01N27/327 ,  G01N27/414 ,  B01L3/00

Abstract: A biomolecule measuring device includes a first liquid tank and a second liquid tank which are filled with an electrolytic solution, a nanopore device that supports a thin film having a nanopore and is provided between the first liquid tank and the second liquid tank so as to communicate between the first liquid, tank and the second liquid tank through the nanopores, and an immobilizing member that is disposed in the first liquid tank, has a size larger than that of the thin film, and to which the biomolecules are immobilized, in which at least, one of the nanopore device and the immobilizing member has a groove structure.

公开(公告)号：US10294525B2

公开(公告)日：2019-05-21

申请号：US15531500

申请日：2015-10-28

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Rena Akahori ,  Itaru Yanagi ,  Kenichi Takeda

IPC: C12Q1/6869 ,  G01N27/447 ,  G01N33/487

Abstract: To introduce a biomolecule into a nanopore without the need to check the position of the nanopore in a thin film. In addition, displacement stability is ensured and stable acquisition of blocking signals is realized. An immobilization member 107 having a larger size than a thin film 113 with a nanopore 112 is used, and biomolecules are immobilized on the biomolecule immobilization member 107 at a density that allows at least one biomolecule 108 to enter an electric field region around the nanopore when the biomolecule immobilization member 107 has moved close to a nanopore device 101.

公开(公告)号：US11448638B2

公开(公告)日：2022-09-20

申请号：US16476860

申请日：2017-01-10

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Kazuma Matsui ,  Yusuke Goto ,  Rena Akahori ,  Takahide Yokoi ,  Michiru Fujioka

IPC: G01N33/487 ,  G01N27/447

Abstract: Provided are a first tank; a second tank; a thin film having a nanopore, which communicates the first tank to the second tank, and disposed between the first and second tanks; a first electrode provided in the first tank; and a second electrode provided in the second tank. A wall surface of the nanopore has an ion adsorption preventing structure to prevent desorption/adsorption of an ion contained in a solution filling the first tank and/or the second tank, and a voltage is applied between the first and second electrodes to measure an ion current flowing through the nanopore.

公开(公告)号：US11181502B2

公开(公告)日：2021-11-23

申请号：US15129854

申请日：2015-03-26

Applicant: Hitachi High-Technologies Corporation

Inventor： Naoshi Itabashi ,  Sonoko Migitaka ,  Itaru Yanagi ,  Rena Akahori ,  Kenichi Takeda

IPC: G01N21/63 ,  G01N27/00 ,  G01N27/92 ,  G01N27/447 ,  G01N21/64 ,  G01N21/65 ,  G01N33/487 ,  B82Y40/00

Abstract: While an insulating film having a near-field light generating element placed thereon is being irradiated with light in an electrolytic solution, or after the film that has been irradiated with light is disposed in the electrolytic solution, a first voltage is applied between the two electrodes installed in the electrolytic solution across the film, a second voltage is then applied between the two electrodes, and a value of a current that flows between the two electrodes due to the application of the second voltage is detected. This procedure is stopped when the current value reaches or exceeds a pre-set threshold value, whereby a hole is formed at a desired location in the thin-film.

公开(公告)号：US11169139B2

公开(公告)日：2021-11-09

申请号：US16395708

申请日：2019-04-26

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Rena Akahori ,  Itaru Yanagi ,  Kenichi Takeda

IPC: G01N33/487 ,  G01N33/543 ,  C12Q1/6869 ,  G01N27/447

Abstract: To introduce a biomolecule into a nanopore without the need to check the position of the nanopore in a thin film. In addition, displacement stability is ensured and stable acquisition of blocking signals is realized. An immobilization member 107 having a larger size than a thin film 113 with a nanopore 112 is used, and biomolecules are immobilized on the biomolecule immobilization member 107 at a density that allows at least one biomolecule 108 to enter an electric field region around the nanopore when the biomolecule immobilization member 107 has moved close to a nanopore device 101.

公开(公告)号：US10253362B2

公开(公告)日：2019-04-09

申请号：US15029712

申请日：2014-11-04

Applicant: Hitachi High-Technologies Corporation

Inventor： Hiroshi Yoshida ,  Rena Akahori ,  Yasuhiko Tada ,  Shohei Terada ,  Takanobu Haga ,  Takashi Anazawa

IPC: C12Q1/68 ,  C12Q1/6869 ,  G01N33/487 ,  C12Q1/6872 ,  G01N15/00

Abstract: The purpose of the present invention is to provide a DNA transport control device having excellent reliability and durability, and a DNA sequencing device that uses the DNA transport control device. The present invention provides a DNA transport control device having a nanopore which allows for the passage of only the DNA strand of a single molecule, and a DNA sequencing device that uses the DNA transport control device. The DNA transport control device is characterized by the following: including a base material having openings and a thin film a block copolymer formed on the base material; the thin film including microdomains that are formed as a result of self-assembly of the block copolymer and that penetrate the thin film, and a matrix surrounding the microdomains; and the nanopore being formed from one opening in the base material and a single microdomain.