公开(公告)号：US20170115216A1

公开(公告)日：2017-04-27

申请号：US15346078

申请日：2016-11-08

Applicant: MYTECH CO., LTD.

Inventor： Yuki HASEGAWA ,  Katsuyuki HASEGAWA

IPC: G01N21/552 ,  G01N33/49

CPC classification number: G01N21/554 ,  G01N21/6458 ,  G01N21/648 ,  G01N21/6486 ,  G01N21/658 ,  G01N33/49

Abstract: A cancer-related substance in blood or a biological sample can be detected in a selective manner, so it becomes possible to determine the occurrence of cancer by observation of fluorescent image of a crystal of the censor related substance or a coagulated state of the crystal on a plasmonic chip. In addition, the state of chemical modification of a histone tail can be determined by a Raman spectrum analysis. Furthermore, the location of the cancer-related substance aggregated on a substrate cannot be determined with naked eyes. Then, as a second aspect of the present invention, a method for diagnosing a cancer disease is provided, said method being characterized by firstly identifying the location of the region of a crystal by observing fluorescent image on a microscope, and then irradiating the crystal, with laser beam to analyze with respect to the chemical modification of a histone tail and a remodeling factor.

公开(公告)号：US20230050766A1

公开(公告)日：2023-02-16

申请号：US17788852

申请日：2020-12-25

Applicant: MYTECH CO., LTD.

Inventor： Yuki HASEGAWA ,  Katsuyuki HASEGAWA

IPC: C12Q1/68 ,  G01N21/64 ,  G01N33/483

Abstract: [Problem] Provided is a method for detecting of an autofluorescence Liquid Biopsy of Methylated Fragmented DNA (fragmented nucleosome) released into the blood by cell apoptosis as a disease-related substance
[Solution] The inventive method comprises a) a step of capturing the fragmented DNA (fragmented nucleosome) in the analyte as a disease-related substance onto the plasmonic metal meso-crystals; b) a step of irradiating the captured fragmented DNA (fragmented nucleosome) on the plasmonic metal meso-crystal with excitation light to enhance the autofluorescence by the surface plasmon enhancing effect, and acquiring a fluorescent colony image via a filter in a longer wavelength range than the excitation light filter; c) a step of adopting a pixel that exhibits a brightness greater than or equal to a predetermined threshold value of said fluorescent colony image; d) calculating a ratio of a total area value of pixels greater than or equal to a predetermined threshold value of a different two-wavelength region of the adopted measurement region.

公开(公告)号：US20170354950A1

公开(公告)日：2017-12-14

申请号：US15182568

申请日：2016-06-14

Applicant: MYTECH CO., LTD.

Inventor： Yuki HASEGAWA ,  Katsuyuki HASEGAWA

IPC: B01J20/06 ,  G01N33/483 ,  C01G5/00 ,  B01J20/32 ,  H01L31/032 ,  G01N21/65

CPC classification number: B01J20/06 ,  B01J20/3234 ,  C01G5/00 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/30 ,  C01P2006/16 ,  C01P2006/40 ,  G01N21/658 ,  G01N33/4833 ,  G01N2333/435 ,  H01L31/032

Abstract: A method for preparing a meso crystal of silver oxide containing silver peroxide is provided. A quantum crystal of silver thiosulfate complex on a substrate or a particle made of copper metal or copper alloy is subjected to treating by an alkaline aqueous solution containing halogen ion to obtain a meso crystal of silver oxide containing the silver peroxide. The meso crystal of silver oxide having nanometer scale, containing a silver peroxide, the silver oxide nanocrystal being a superstructure three-dimensionally arranged in the shape of a neuron provided with properties being negatively charged in water and able to be reduced to a silver nanoparticle by a laser radiation.

公开(公告)号：US20230243816A1

公开(公告)日：2023-08-03

申请号：US18159857

申请日：2023-01-26

Applicant: MYTECH CO. LTD.

Inventor： Yuki HASEGAWA ,  Katsuyuki HASEGAWA

IPC: G01N33/543 ,  G01N33/553 ,  G01N33/569

CPC classification number: G01N33/54306 ,  G01N33/553 ,  G01N33/56983 ,  G01N2333/165

Abstract: The present invention relates to a system capable of performing simple and rapid inspection of an antigen equivalent to the immune chromatographic method with accuracy good as a PCR method. An embodiment relates to a novel fluorescence counting system for quantifying viruses or antibodies in an analyte which comprises an unit of providing an antigen or antibody phase solidified substrate by an aggregation method with quantum crystals, an unit for making a labeling liquor and labeling a virus or an antibody to be measured in the analyte by an antigen-antibody method, an unit of exciting the fluorescently labeled virus or antibody by a surface plasmon excitation method, and an unit of counting fluorescent points in an excited fluorescent screen to quantify the virus or antibody in the analyte.