公开(公告)号：US11607685B2

公开(公告)日：2023-03-21

申请号：US16764606

申请日：2017-12-22

Applicant: BBB Inc.

Inventor： Jaekyu Choi ,  Hyundoo Hwang ,  Dongsik Han

IPC: B01L3/00

Abstract: The present specification discloses a microfluidic analysis chip capable of adjusting movement of a specimen or a reagent by a negative pressure generation unit. A microfluidic analysis chip according to the present specification may comprise: a microtube for a main channel, which provides a space in which a specimen input through a specimen inlet formed at one end thereof reacts with a regent while the specimen moves to the other end thereof; a chip housing surrounding the microtube for the main channel; and a negative pressure generation unit which is positioned in the chip housing and connected to the microtube, so as to affect an internal pressure of the microtube for the main channel.

公开(公告)号：US20210341471A1

公开(公告)日：2021-11-04

申请号：US17305935

申请日：2021-07-16

Applicant: BBB INC.

Inventor： Hyundoo Hwang ,  Jaekyu Choi

IPC: G01N33/543 ,  G01N27/327 ,  G01N33/553

Abstract: According to one embodiment of the present application, a biosensor, the biosensor comprising: a reaction part including a magnetic nanoparticle complex, a first electrode, and a second electrode; and a sample introduction part forming a passage so that a sample can be introduced into the reaction part from an outside of the biosensor; wherein the magnetic nanoparticle complex includes a first capturing substance for capturing a first target substance, a magnetic nanoparticle, and a reaction substance that performs at least one of an oxidation reaction and a reduction reaction, wherein the magnetic nanoparticle complex is magnetic in the reaction part, and has a property that mobility can be changed according to a change in a condition of the reaction part, wherein the first electrode, a second capturing substance for capturing a second target substance is fixed, wherein the second electrode is an electrode different from the first electrode, and characterized in that at least one of the first target substance and the second target substance is included in the sample, may be provided.

公开(公告)号：US12092638B2

公开(公告)日：2024-09-17

申请号：US17305935

申请日：2021-07-16

Applicant: BBB INC.

Inventor： Hyundoo Hwang ,  Jaekyu Choi

IPC: G01N33/543 ,  G01N27/327 ,  G01N33/553

CPC classification number: G01N33/54333 ,  G01N27/3277 ,  G01N27/3278 ,  G01N33/54346 ,  G01N33/5438 ,  G01N33/54393 ,  G01N33/553

Abstract: A biosensor includes a reaction part including a magnetic nanoparticle complex, a first electrode, and a second electrode; and a sample introduction part forming a passage so that a sample can be introduced into the reaction part from an outside of the biosensor. The magnetic nanoparticle complex includes a first capturing substance for capturing a first target substance, a magnetic nanoparticle, and a reaction substance that performs at least one of an oxidation reaction and a reduction reaction.

公开(公告)号：US11529629B2

公开(公告)日：2022-12-20

申请号：US15930073

申请日：2020-05-12

Applicant: BBB INC.

Inventor： Hyundoo Hwang ,  Dongsik Han ,  Jaekyu Choi

IPC: B01L3/00 ,  B01D61/18 ,  G01N33/49

Abstract: The present invention relates to a biosensor, including: a blood cell separation membrane which separates blood cells from blood and allows plasma components to pass through; a microfluid channel through which the plasma components that have passed through the blood cell separation membrane flow; a lower substrate which allows the plasma components that have passed through the blood cell separation membrane to flow along the microfluid channel; and a pillar which connects the blood cell separation membrane and the lower substrate, in which an electrode is disposed in the pillar, and the pillar pushes and lifts the blood cell separation membrane by a predetermined distance. The biosensor of the present invention allows plasma, which is difficult to pass through the blood cell separation membrane due to surface tension, to easily pass through.

公开(公告)号：US11239455B2

公开(公告)日：2022-02-01

申请号：US16871222

申请日：2020-05-11

Applicant: BBB INC.

Inventor： Hyundoo Hwang ,  Jaekyu Choi

IPC: H01M4/04 ,  H01G11/26 ,  H01G11/34 ,  H01G11/86 ,  H01M4/66 ,  H01M4/80 ,  H01M4/02

Abstract: The present invention relates to a method of manufacturing a porous carbon electrode, the method including: applying a metal film or metal particles to one surface of a carbon electrode; heat treating the carbon electrode to which the metal film or the metal particles are applied; and forming one surface of the carbon electrode in a porous structure by making the metal film or the metal particles penetrate into one surface of the carbon electrode, and the efficiency of the carbon electrode as an electrode may be improved while increasing a surface area of a carbon structure.