Patents by Inventor Duanting Zhai

Duanting Zhai 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: 20170168073
    Abstract: The invention relates to compounds of formula (I) or derivatives, tautomeric forms, stereoisomers, polymorphs, hydrates, solvates, pharmaceutically acceptable salts, pharmaceutical compositions, metabolites or prodrugs thereof, in which the substituents are as defined in the specification. These compounds may be useful as insulin sensors; in insulin secretion studies and as probes for insulin detection.
    Type: Application
    Filed: November 26, 2014
    Publication date: June 15, 2017
    Inventors: Young-Tae CHANG, Duanting ZHAI, Sung-Chan LEE, Nam-Young KANG
  • Patent number: 9423395
    Abstract: The present invention is directed to a novel family of fluorophores based on the BODIPY scaffold, and methods for their synthesis. The BODIPY-based fluorophores disclosed herein are used for the selective visualization of cells that exist in the M-phase of the cell cycle. The present invention further relates to methods for the image-based monitoring of mitotic progression in live cells.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: August 23, 2016
    Assignees: National University of Singapore, Agency for Science, Technology and Research
    Inventors: Young-Tae Chang, Duanting Zhai, Sung-Chan Lee, Seong-Wook Yun, Yun-Mi Jeong, Nam-Young Kang, Sung-Jin Park
  • Publication number: 20160084769
    Abstract: The present invention relates to Caffeine Orange, a novel aqueous-phase fluorescence turn-on sensor for caffeine that is structurally based on a BODIPY-scaffold. The present invention further provides for methods of detecting and measuring caffeine in aqueous media. A change in the intensity or visible color of the fluorescence is detectable by either a fluorimeter or by the naked eye. The methods disclosed herein provide for the utilization of a reverse-phase SPE column, optionally as a component in a syringe or a microfluidics-based automation detection system. The invention further provides for the solid phase extraction of an analyte such as caffeine from a liquid medium, the extraction occurring on a microfluidic disc.
    Type: Application
    Filed: April 17, 2014
    Publication date: March 24, 2016
    Inventors: Young-Tae Chang, Wang Xu, Duanting Zhai, Yoon-Kyoung Cho, Tae-Hyeong Kim
  • Patent number: 9267949
    Abstract: The present invention discloses a series of alkylamino BODIPY dyes, methods for preparing a library of alkyl-amino BODIPY dyes via solid-phase synthesis, and the use of the alkyl-amino BODIPY dyes as fluorescent sensors for protein detection, cell imaging and cytometry applications, and staining of certain cell line.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 23, 2016
    Assignees: National University of Singapore, Agency for Science, Technology and Research
    Inventors: Young-Tae Chang, Marc Vendrell Escobar, Duanting Zhai, Nam-Young Kang, Yogeswari Chandran
  • Publication number: 20150355168
    Abstract: The present invention is directed to a novel family of fluorophores based on the BODIPY scaffold, and methods for their synthesis. The BODIPY-based fluorophores disclosed herein are used for the selective visualization of cells that exist in the M-phase of the cell cycle. The present invention further relates to methods for the image-based monitoring of mitotic progression in live cells.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 10, 2015
    Inventors: Young-Tae Chang, Duanting Zhai, Sung-Chan Lee, Seong-Wook Yun, Yun-Mi Jeong, Nam-Young Kang, Sung-Jin Park
  • Patent number: 8889883
    Abstract: The present invention is directed to a fluorescence compound represented by structural Formula (I), with specificity to neural stem cells: I or a pharmaceutically acceptable salt thereof. The variables for structural Formula (I) are defined herein. Also described are methods for detection of neural stem cells, comprising using a compound of structural Formula (I) or pharmaceutically acceptable salts thereof. Compounds of structural Formula (I) can detect and separate neural stem cells without immunostaining, providing a much shorter and more convenient method for detection of neural stem cells.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: November 18, 2014
    Assignees: National University of Singapore, Agency for Science, Technology and Research
    Inventors: Young-Tae Chang, Seong-Wook Yun, Duanting Zhai, Kit Mun Cheryl Leong
  • Publication number: 20140121129
    Abstract: The present invention discloses a series of alkylamino BODIPY dyes, methods for preparing a library of alkyl-amino BODIPY dyes via solid-phase synthesis, and the use of the alkyl-amino BODIPY dyes as fluorescent sensors for protein detection, cell imaging and cytometry applications, and staining of certain cell line.
    Type: Application
    Filed: June 15, 2012
    Publication date: May 1, 2014
    Applicants: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH, NATIONAL UNIVERSITY OF SINGAPORE
    Inventors: Young-Tae Chang, Marc Vendrell Escobar, Duanting Zhai, Nam-Young Kang, Yogeswari Chandran
  • Publication number: 20130244251
    Abstract: The present invention is directed to a fluorescence compound represented by structural Formula (I), with specificity to neural stem cells: I or a pharmaceutically acceptable salt thereof. The variables for structural Formula (I) are defined herein. Also described are methods for detection of neural stem cells, comprising using a compound of structural Formula (I) or pharmaceutically acceptable salts thereof. Compounds of structural Formula (I) can detect and separate neural stem cells without immunostaining, providing a much shorter and more convenient method for detection of neural stem cells.
    Type: Application
    Filed: November 22, 2011
    Publication date: September 19, 2013
    Inventors: Young-Tae Chang, Seong-Wook Yun, Duanting Zhai, Kit Mun Cheryl Leong