Patents by Inventor Sarah F. Knight

Sarah F. Knight 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).

  • Patent number: 8815860
    Abstract: The present disclosure is generally related to methods of preventing oxidative stress injury induced by renal ischemia-reperfusion by a Folate-TEMPOL conjugate.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: August 26, 2014
    Assignees: Emory University, Georgia Tech Research Corporation
    Inventors: W. Robert Taylor, Sarah F. Knight, Niren Murthy, Kousik Kundu
  • Publication number: 20140105826
    Abstract: Reduced dyes, such as hydrocyanines, deuterocyanines, and/or other deuterated dyes capable of detecting one or more reactive oxygen species are described herein. The reduced dyes exhibit little or no fluorescence due to the disrupted ? conjugation. However, upon reaction with ROS, the reduced dyes are oxidized, regenerating the extended ? conjugation and causing a substantial increase in fluorescence intensity. In many case, the oxidized dye is generally membrane impermeable. However, upon reduction, many of the reduced dyes are membrane permeable. Thus, reduced dyes can accumulate in cells and/or tissue to amplify the signal. Once inside the cell or tissue, the reduced dye is reoxidized upon reaction with ROS, and the oxidized dye again becomes membrane impermeable, trapping the dye within the cell. The reduced dyes can be used to image ROS, such as hydroxide radical and superoxide, in serum, cell cultures, tissue explants, and in vivo.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 17, 2014
    Applicants: Emory University, Georgia Tech Research Corporation
    Inventors: Niren Murthy, W. Robert Taylor, Kousik Kundu, Sarah F. Knight, Sungmun Lee
  • Patent number: 8628753
    Abstract: Reduced dyes, such as hydrocyanines, deuterocyanines, and/or other deuterated dyes capable of detecting one or more reactive oxygen species are described herein. The reduced dyes exhibit little or no fluorescence due to the disrupted ? conjugation. However, upon reaction with ROS, the reduced dyes are oxidized, regenerating the extended ? conjugation and causing a substantial increase in fluorescence intensity. In many case, the oxidized dye is generally membrane impermeable. However, upon reduction, many of the reduced dyes are membrane permeable. Thus, reduced dyes can accumulate in cells and/or tissue to amplify the signal. Once inside the cell or tissue, the reduced dye is reoxidized upon reaction with ROS, and the oxidized dye again becomes membrane impermeable, trapping the dye within the cell. The reduced dyes can be used to image ROS, such as hydroxide radical and superoxide, in serum, cell cultures, tissue explants, and in vivo.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: January 14, 2014
    Assignees: Emory University, Georgia Tech Research Corporation
    Inventors: Niren Murthy, W. Robert Taylor, Kousik Kundu, Sarah F. Knight, Sungmun Lee
  • Publication number: 20120302575
    Abstract: The present disclosure is generally related to methods of preventing oxidative stress injury induced by renal is-chemia-reperfusion by a Folate-TEMPOL conjugate.
    Type: Application
    Filed: September 21, 2010
    Publication date: November 29, 2012
    Applicants: GEORGIA TECH RESEARCH CORPORATION, EMORY UNIVERSITY
    Inventors: W. Robert Taylor, Sarah F. Knight, Niren Murthy, Kousik Kundu
  • Publication number: 20110070166
    Abstract: Reduced dyes, such as hydrocyanines, deuterocyanines, and/or other deuterated dyes capable of detecting one or more reactive oxygen species are described herein. The reduced dyes exhibit little or no fluorescence due to the disrupted ? conjugation. However, upon reaction with ROS, the reduced dyes are oxidized, regenerating the extended ? conjugation and causing a substantial increase in fluorescence intensity. In many case, the oxidized dye is generally membrane impermeable. However, upon reduction, many of the reduced dyes are membrane permeable. Thus, reduced dyes can accumulate in cells and/or tissue to amplify the signal. Once inside the cell or tissue, the reduced dye is reoxidized upon reaction with ROS, and the oxidized dye again becomes membrane impermeable, trapping the dye within the cell. The reduced dyes can be used to image ROS, such as hydroxide radical and superoxide, in serum, cell cultures, tissue explants, and in vivo.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 24, 2011
    Inventors: Niren Murthy, W. Robert Taylor, Kousik Kundu, Sarah F. Knight, Sungmun Lee