Patents by Inventor Sang Jun Sim

Sang Jun Sim 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: 20240319197
    Abstract: The present invention relates to a high-sensitivity nanoplasmonic biosensor for detecting autophagy markers by plasmon resonance effect, a manufacturing method therefor, and an autophagy marker detection method using same. The nanoplasmonic biosensor according to the present invention can detect LC3, which is an autophagy marker, by using a plasmon resonance effect even without an additional marker, can perform detection at a low sensitivity and in a wide concentration range, and can quantify the concentration of a target protein on the basis thereof, and thus can be used for effectively measuring autophagy markers. Therefore, the nanoplasmonic biosensor according to the present invention can be variously used for: the detection of a complex mixture; the early detection of cancer; the early prevention of infections, neurological disorders and the like; and the like.
    Type: Application
    Filed: April 14, 2022
    Publication date: September 26, 2024
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Jun SIM, Jong Uk LEE, Young Jae CHOI
  • Publication number: 20240255431
    Abstract: The present invention relates to a bacteriophage-based gold nanohalo structure and a fabrication method therefor, and more particularly to a SERS-active gold nanohalo structure in which gold nanoparticles are regularly arranged on bacteriophage MS2, and a fabrication method therefor. The gold nanohalo structure according to the present invention may generate a consistent SERS signal due to regular arrangement of hot spots between the gold nanoparticles, and may be effectively used in the development of a SERS-based detection system.
    Type: Application
    Filed: April 12, 2024
    Publication date: August 1, 2024
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Myoungjin JEON, Xingyi MA
  • Publication number: 20240166980
    Abstract: A photobioreactor fabrication system is disclosed. According to a first embodiment, the photobioreactor fabrication system includes a first unwinder 10 continuously unwinding a first transparent film 1, a second unwinder 20 arranged parallel to the first unwinder 10 and continuously unwinding a second transparent film 2 such that the second film 2 faces the first film 1, a heat sealer 30 pressurizing and heat sealing the first 1 and second films 2 to a baffle 3 arranged between the first 1 and second films 2 facing each other, and a rewinder 40 simultaneously and continuously winding the first 1 and second films 2 having passed through the heat sealer 30.
    Type: Application
    Filed: November 21, 2023
    Publication date: May 23, 2024
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Jeong Seop LEE, Ju Yeon LEE, Dong Hun KIM
  • Publication number: 20230236169
    Abstract: Disclosed are a nanoplasmonic biosensor for detecting an autophagy marker with high sensitivity using a plasmon resonance effect, and a method of detecting an autophagy marker and a method of screening a cancer therapeutic agent using the same.
    Type: Application
    Filed: January 10, 2023
    Publication date: July 27, 2023
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Jun SIM, Jong Uk LEE, Young Jae CHOI
  • Patent number: 11702681
    Abstract: Disclosed is a mutant strain having the ability to produce polyhydroxybutyrate. The novel strain has a significantly high growth rate and an improved ability to produce PHB compared to existing PHB-producing cyanobacterial strains. Therefore, the novel strain is suitable for use in the production of PHB and the development of various products using PHB. In addition, the novel strain is useful as a photosynthetic strain for developing a PHB production process using industrial flue gas due to its ability to produce PHB from only CO2 without any additional organic carbon source. Also disclosed is a method for producing polyhydroxybutyrate using the mutant strain.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: July 18, 2023
    Assignee: Korea University Research and Business Foundation
    Inventors: Sang Jun Sim, Hyejin Roh, Jeong Seop Lee
  • Publication number: 20230203595
    Abstract: Disclosed are a surface-enhanced Raman scattering-based biosensor for diagnosing prostate cancer with high sensitivity and a method of detecting a prostate-cancer-derived target biomarker using the same.
    Type: Application
    Filed: November 10, 2022
    Publication date: June 29, 2023
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Jong Uk LEE, Woo Hyun KIM
  • Publication number: 20230193365
    Abstract: Disclosed are a metal nanostructure based on biomolecules and a nanoplasmonic biosensor using the same.
    Type: Application
    Filed: July 21, 2022
    Publication date: June 22, 2023
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, So Jin SONG, Jong Uk LEE
  • Patent number: 11578355
    Abstract: The present invention relates to a nanoplasmonic biosensor capable of label-free multiplex detection of disease markers in blood with high selectivity and sensitivity and a method for detecting disease markers using the nanoplasmonic biosensor. The nanoplasmonic biosensor of the present invention enables label-free multiplex detection of miRNAs as disease markers in blood with high selectivity and sensitivity. Therefore, the nanoplasmonic biosensor of the present invention can be effectively used for the diagnosis of miRNA-related diseases and clinical applications.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: February 14, 2023
    Assignee: Korea University Research and Business Foundation
    Inventors: Sang Jun Sim, Jong-Uk Lee, Woo-hyun Kim
  • Publication number: 20230010564
    Abstract: Disclosed is a method for culturing Haematococcus pluvialis containing a large amount of astaxanthin. According to one embodiment, the method includes culturing Haematococcus pluvialis under autotrophic conditions to prepare a culture containing cysts in which astaxanthin is accumulated and adding a nitrogen source to the culture to induce germination of the cysts.
    Type: Application
    Filed: February 18, 2022
    Publication date: January 12, 2023
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Young Joon Sung, Seung Jun Cho
  • Publication number: 20220364162
    Abstract: The present invention relates to: a single nanoparticle biosensor platform comprising a metal nanoparticle in which a biomolecule is immobilized between two metal nanoseeds, and a biosensor comprising same; a method for detecting mutations by using the biosensor; and a method for manufacturing a single nanoparticle biosensor platform, comprising a step of forming a metal nanoparticle in which a biomolecule is immobilized between two metal nanoseeds. The single nanoparticle biosensor platform according to the present invention enables high sensitivity and reliability detection of a target, and also enables direct identification of various mutations so as to enable the efficient diagnosis of mutations, thereby being widely usable in the biomedical diagnostic fields and the like.
    Type: Application
    Filed: August 14, 2019
    Publication date: November 17, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Xingyi MA, Soohyun KIM
  • Patent number: 11434456
    Abstract: The present invention relates to a large-scale photosynthetic bioreactor in which transparent photobioreactors including a baffle are connected in parallel or in series by an adhesive element so that the reactor volume can be easily scaled up for scale-up culture of photosynthetic organisms, and to a fabrication method thereof. The large-scale photosynthetic bioreactor according to the present invention makes it possible to culture a larger amount of microalgae than a conventional photobioreactor in the same area. In addition, it has high light transmittance, produces a large amount of biomass per unit area due to smooth mixing, and has a significant effect of reducing carbon dioxide. Furthermore, the present invention has an advantage in that the number of photosynthetic bioreactors required to culture the same scale of photosynthetic organisms is significantly smaller than that in a conventional process for culture of photosynthetic organisms, and thus the operating costs can be reduced.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: September 6, 2022
    Assignee: Korea University Research and Business Foundation
    Inventors: Sang Jun Sim, Hoang Minh Pham, Byung-Sun Yu, Jeongseop Lee, Young Joon Sung
  • Publication number: 20220267715
    Abstract: Disclosed is a method for microalgal cultivation. The method includes cultivating a microalgal species in a medium in an autotrophic mode for a predetermined first time period where light is supplied and supplying an organic carbon source to the medium to cultivate the microalgal species in a heterotrophic mode for a predetermined second time period where the supply of light is stopped.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 25, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Jae Min JOUN, Min Eui HONG
  • Publication number: 20220205002
    Abstract: Disclosed is a mutant strain having the ability to produce polyhydroxybutyrate. The novel strain has a significantly high growth rate and an improved ability to produce PHB compared to existing PHB-producing cyanobacterial strains. Therefore, the novel strain is suitable for use in the production of PHB and the development of various products using PHB. In addition, the novel strain is useful as a photosynthetic strain for developing a PHB production process using industrial flue gas due to its ability to produce PHB from only CO2 without any additional organic carbon source. Also disclosed is a method for producing polyhydroxybutyrate using the mutant strain.
    Type: Application
    Filed: December 29, 2021
    Publication date: June 30, 2022
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Hyejin ROH, Jeong Seop LEE
  • Publication number: 20210396678
    Abstract: The present invention relates to a bacteriophage-based gold nanohalo structure and a fabrication method therefor, and more particularly to a SERS-active gold nanohalo structure in which gold nanoparticles are regularly arranged on bacteriophage MS2, and a fabrication method therefor. The gold nanohalo structure according to the present invention may generate a consistent SERS signal due to regular arrangement of hot spots between the gold nanoparticles, and may be effectively used in the development of a SERS-based detection system.
    Type: Application
    Filed: May 2, 2019
    Publication date: December 23, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Myoungjin JEON, Xingyi MA
  • Patent number: 11193100
    Abstract: A method for carbon resource utilization is disclosed. According to one embodiment, the method includes (a) supplying carbon dioxide to a medium to form bicarbonate ions (HCO3?) (S100), (b) inoculating one or more microalgal species into the medium, followed by photo-culture (S200), and (c) supplying calcium ions (Ca2+) to the medium, where the microalgal species are photo-cultured, to produce calcite (CaCO3)-containing biomass (S300).
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: December 7, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Sang Jun Sim, Byung Sun Yu, Min Eui Hong
  • Publication number: 20200239913
    Abstract: A method for carbon resource utilization is disclosed. According to one embodiment, the method includes (a) supplying carbon dioxide to a medium to form bicarbonate ions (HCO3?) (S100), (b) inoculating one or more microalgal species into the medium, followed by photo-culture (S200), and (c) supplying calcium ions (Ca2+) to the medium, where the microalgal species are photo-cultured, to produce calcite (CaCO3)-containing biomass (S300).
    Type: Application
    Filed: October 21, 2019
    Publication date: July 30, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Byung Sun YU, Min Eui HONG
  • Publication number: 20190360026
    Abstract: The present invention relates to a nanoplasmonic biosensor capable of label-free multiplex detection of disease markers in blood with high selectivity and sensitivity and a method for detecting disease markers using the nanoplasmonic biosensor. The nanoplasmonic biosensor of the present invention enables label-free multiplex detection of miRNAs as disease markers in blood with high selectivity and sensitivity. Therefore, the nanoplasmonic biosensor of the present invention can be effectively used for the diagnosis of miRNA-related diseases and clinical applications.
    Type: Application
    Filed: March 22, 2019
    Publication date: November 28, 2019
    Applicant: Korea University Research and Business Foundation
    Inventors: Sang Jun SIM, Jong-Uk LEE, Woo-hyun KIM
  • Patent number: 10458911
    Abstract: A method for screening an anticancer candidate is disclosed. The method includes immobilizing gold nanoparticles onto a substrate; binding a protein involved in carcinogenesis and metastasis to the immobilized gold nanoparticles, recording a spectrum of the protein conjugate, and analyzing the spectrum to obtain reference data; adding a candidate inhibiting the activity of the protein to the protein conjugate, recording a spectrum of the mixture, and analyzing the spectrum to obtain comparative data; and comparing the reference data with the comparative data to determine whether the candidate inhibits the activity of the protein. The method enables screening of a candidate inhibiting the activity of a protein involved in carcinogenesis and metastasis in an accurate and convenient manner.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: October 29, 2019
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Jun Sim, So Jin Song
  • Publication number: 20190100719
    Abstract: The present invention relates to a large-scale photosynthetic bioreactor in which transparent photobioreactors including a baffle are connected in parallel or in series by an adhesive element so that the reactor volume can be easily scaled up for scale-up culture of photosynthetic organisms, and to a fabrication method thereof. The large-scale photosynthetic bioreactor according to the present invention makes it possible to culture a larger amount of microalgae than a conventional photobioreactor in the same area. In addition, it has high light transmittance, produces a large amount of biomass per unit area due to smooth mixing, and has a significant effect of reducing carbon dioxide. Furthermore, the present invention has an advantage in that the number of photosynthetic bioreactors required to culture the same scale of photosynthetic organisms is significantly smaller than that in a conventional process for culture of photosynthetic organisms, and thus the operating costs can be reduced.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 4, 2019
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Jun SIM, Hoang Minh PHAM, Byung-Sun YU, Jeongseop LEE, Young Joon SUNG
  • Patent number: 10106861
    Abstract: The present invention relates to microalgae with improved phototaxis and photosynthetic efficiency, and more particularly, to a microalgae PTS42 (KCTC18499P) mutant of Chlamydomonas reinhardtii and uses thereof. In the microalgae PTS42 according to the present invention of which photosensitivity and photosynthetic efficiency are improved due to excellent phototaxis, conversion of carbon dioxide into biomass is excellent as compared to a wild type strain and a maximum photosynthesis rate and lipid accumulation ability are also high, such that the microalgae PTS42 are useful as a photosynthetic strain for constructing a biofuel production process as well as an effect of decreasing carbon dioxide.
    Type: Grant
    Filed: February 5, 2017
    Date of Patent: October 23, 2018
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Sang Jun Sim, Ho-Seok Kwak, Young Hwan Kim