Patents by Inventor Kwonchul NOH

Kwonchul NOH 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).

  • Selective colorimetric detection sensor and selective colorimetric detection method for detecting hexavalent chromium ions using size controlled label-free gold nanoparticles
    Patent number: 10928326
    Abstract: Disclosed are a selective colorimetric detection sensor and a colorimetric detection method for C6+ ions using size controlled label-free gold nanoparticles, which may be useful for the detection of toxic materials such as heavy metal ions in the environmental sector and the industry. Selective colorimetric sensor solution used therein is selectively reacted with only Cr6+ ions in trivalent chromium ions (Cr3+) and hexavalent chromium ions (Cr6+), and there is no interference effect resulting from other metal ions, and it is possible to very rapidly and precisely detect Cr6+ ions compared to the related art.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 23, 2021
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kangbong Lee, Yunsik Nam, Kwonchul Noh, Inhwan Oh
  • SELECTIVE COLORIMETRIC DETECTION SENSOR AND SELECTIVE COLORIMETRIC DETECTION METHOD FOR DETECTING HEXAVALENT CHROMIUM IONS USING SIZE CONTROLLED LABEL-FREE GOLD NANOPARTICLES
    Publication number: 20170038303
    Abstract: Disclosed are a selective colorimetric detection sensor and a colorimetric detection method for C6+ ions using size controlled label-free gold nanoparticles, which may be useful for the detection of toxic materials such as heavy metal ions in the environmental sector and the industry. Selective colorimetric sensor solution used therein is selectively reacted with only Cr6+ ions in trivalent chromium ions (Cr3+) and hexavalent chromium ions (Cr6+), and there is no interference effect resulting from other metal ions, and it is possible to very rapidly and precisely detect Cr6+ ions compared to the related art.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 9, 2017
    Inventors: Kangbong LEE, Yunsik NAM, Kwonchul NOH, Inhwan OH