Patents by Inventor Guo Zhiqian

Guo Zhiqian 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).

  • Cyanine derivatives having meso-reactive functional group at polymethine chain and preparation method thereof
    Patent number: 9151735
    Abstract: The present invention relates to a novel cyanne derivative having a meso-reaction functional group in a polymethine chain, and a preparation method thereof, and the cyanine derivative having the reaction functional group substituted at the meso site may be suitable for mass production thanks to a very simple synthesis method, have a very fast reaction rate because while a related art reagent for detection of nerve agents undergoes two steps of reactions, the cyanine derivative of the present invention undergoes only one step of reaction, have very excellent sensitivity, and be useful as an acid pH-activated ratiometric NIR probe because it is able to be activated in an acidic pH and is usable in an aqueous environment.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 6, 2015
    Assignee: Ewha University-Industry Collaboration Foundation
    Inventors: Juyoung Yoon, Guo Zhiqian
  • NOVEL CYANINE DERIVATIVES HAVING MESO-REACTIVE FUNCTIONAL GROUP AT POLYMETHINE CHAIN AND PREPARATION METHOD THEREOF
    Publication number: 20140329331
    Abstract: The present invention relates to a novel cyanne derivative having a meso-reaction functional group in a polymethine chain, and a preparation method thereof, and the cyanine derivative having the reaction functional group substituted at the meso site may be suitable for mass production thanks to a very simple synthesis method, have a very fast reaction rate because while a related art reagent for detection of nerve agents undergoes two steps of reactions, the cyanine derivative of the present invention undergoes only one step of reaction, have very excellent sensitivity, and be useful as an acid pH-activated ratiometric NIR probe because it is able to be activated in an acidic pH and is usable in an aqueous environment.
    Type: Application
    Filed: January 7, 2013
    Publication date: November 6, 2014
    Applicant: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION
    Inventors: Juyoung Yoon, Guo Zhiqian