Patents by Inventor Yong Duk Han

Yong Duk Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210189471
    Abstract: An optical gene biosensor is disclosed. The optical gene biosensor includes a substrate; a molecular beacon anchored to the substrate, wherein the molecular beacon includes an oligonucleotide specifically binding to a target nucleic acid molecule and a first compound bound to a first terminal of the oligonucleotide; an optical marker specifically binding to the first compound, wherein the optical marker is configured to retro-reflect irradiated light; a light source for irradiating the optical marker with light; and a light-receiver for receiving light retro-reflected from the optical marker. The optical gene biosensor may perform accurate quantitative analysis of a target nucleic acid molecule using both non-spectral and spectral light sources.
    Type: Application
    Filed: March 9, 2018
    Publication date: June 24, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hyun-Chul YOON, Jae-Ho KIM, Yong-Duk HAN, Hyeong-Jin CHUN
  • Publication number: 20210002546
    Abstract: Disclosed is a method of manufacturing lanthanide fluorescent silica nanoparticles, including a complex synthesis step of synthesizing a silane-lanthanide chelate complex, an emulsion formation step of forming a water-in-oil microemulsion by dispersing micelles, the water-phase core of which is introduced with the silane-lanthanide chelate complex, in an oil-phase solvent, a silica introduction step of introducing a silica precursor into the microemulsion, and a nanoparticle synthesis step of synthesizing fluorescent silica nanoparticles by crosslinking the silica precursor and the silane-lanthanide chelate complex in the micelles. The lanthanide fluorescent silica nanoparticles thus manufactured can be utilized in fluorescence analysis of inorganic materials or bio-derived materials.
    Type: Application
    Filed: February 14, 2017
    Publication date: January 7, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hyun C. YOON, Ka Ram KIM, Yong Duk HAN, Yoo Min PARK, Hyeong Jin CHUN
  • Publication number: 20180371529
    Abstract: An optical probe for a bio-sensor selectively conjugated to a target analyte and configured to retro-reflect incident light thereto is disclosed. The optical probe for the bio-sensor includes: a transparent core particle; a total-reflection inducing layer covering a portion of a surface of the core particle, the inducing layer is made of a material having a refractive index lower than a refractive index of the core; a modifying layer formed on the total-reflection inducing layer; and an analyte-sensing substance bound to the modifying layer, the sensing substance is selectively conjugated to the target analyte. This optical probe may serve as an excellent optical probe for both a non-spectral light source and a spectral light source.
    Type: Application
    Filed: December 30, 2015
    Publication date: December 27, 2018
    Applicant: Industry-Academic Cooperation Foundation of Ajou U niversity
    Inventors: Hyun-Chul YOON, Yong-Duk HAN, Jae-Ho KIM
  • Patent number: 9897920
    Abstract: The present disclosure relates to a sensor for detecting saccharide and manufacturing method thereof and detection method of glycated hemoglobin using the same wherein the sensor for detecting saccharide includes a reactive layer synthesized with hydrogel having a boronic acid-modified 3D mesh structure. A selective and sensitive detection of the glycated protein including glucose or glycated hemoglobin (HbA1c) in blood through high level of signal may be enabled, and the durability of the sensor for detecting saccharide may be enhanced.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: February 20, 2018
    Assignees: LG ELECTRONICS INC., AJOU UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION
    Inventors: Yunhee Ku, Moosub Kim, Yongju Yang, Seung Yeon Song, Kang Sun Lee, Hyun Chul Yoon, Yong Duk Han, Yoo Min Park
  • Publication number: 20160109370
    Abstract: The present disclosure relates to a sensor for detecting saccharide and manufacturing method thereof and detection method of glycated hemoglobin using the same wherein the sensor for detecting saccharide includes a reactive layer synthesized with hydrogel having a boronic acid-modified 3D mesh structure. A selective and sensitive detection of the glycated protein including glucose or glycated hemoglobin (HbA1c) in blood through high level of signal may be enabled, and the durability of the sensor for detecting saccharide may be enhanced.
    Type: Application
    Filed: March 11, 2015
    Publication date: April 21, 2016
    Applicants: LG ELECTRONICS INC., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yunhee KU, Moosub KIM, Yongju YANG, Seung Yeon SONG, Kang Sun LEE, Hyun Chul YOON, Yong Duk HAN, Yoo Min PARK
  • Publication number: 20130015062
    Abstract: Disclosed herein are an electrode for measuring glycoprotein and a preparation method thereof. In the electrode, cystamine is bound to the electrode surface, and boronic acid is conjugated to the cystamine. Thus, an increased amount of boronic acid can be bound to the electrode surface, so that the amount of glycoprotein can be more accurately measured using the electrode.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 17, 2013
    Inventors: Yun Hee Ku, Yong Ju Yang, Yoo Min Park, Seung Yeon Song, Yong Duk Han, Moo Sub Kim, Hyun Chul Yoon