Patents by Inventor Diana A. Stavreva

Diana A. Stavreva 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: 9921211
    Abstract: Described herein are compositions, methods, a system, and kits for detection of endocrine disruptor chemicals (EDCs) in samples, such as samples of water including but not limited to waste water treatment plant effluent, using a live-cell fluorescence-based nuclear translocation reporter system. Upon binding of a ligand to a fluorescent-labeled reporter protein, the protein (and therefore the fluorescence) is translocated in a ligand level-dependent manner from the cytoplasm to the nucleus of live mammalian cells; this translocation is detectable as diffuse (cytoplasmic) fluorescence converting to localized, brightly fluorescent nuclei. The described kits can be used to reliably detect very low levels of EDC contamination, including in high throughput analysis systems as described.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: March 20, 2018
    Assignee: The United Stated of America, as Represented by The Secretary, Department of Health and Human Services
    Inventors: Gordon L. Hager, Diana A. Stavreva
  • Publication number: 20150219628
    Abstract: Described herein are compositions, methods, a system, and kits for detection of endocrine disruptor chemicals (EDCs) in samples, such as samples of water including but not limited to waste water treatment plant effluent, using a live-cell fluorescence-based nuclear translocation reporter system. Upon binding of a ligand to a fluorescent-labeled reporter protein, the protein (and therefore the fluorescence) is translocated in a ligand level-dependent manner from the cytoplasm to the nucleus of live mammalian cells; this translocation is detectable as diffuse (cytoplasmic) fluorescence converting to localized, brightly fluorescent nuclei. The described kits can be used to reliably detect very low levels of EDC contamination, including in high throughput analysis systems as described.
    Type: Application
    Filed: April 22, 2015
    Publication date: August 6, 2015
    Applicant: THE UNITED STATES OF AMERICA, as represented by the Secretary, Department of Health and Human
    Inventors: Gordon L. Hager, Diana A. Stavreva
  • Publication number: 20150168416
    Abstract: Described herein are compositions, methods, a system, and kits for detection of endocrine disruptor chemicals (EDCs) in environmental and other samples, such as samples of water including but not limited to waste water treatment plant effluent, using a live-cell fluorescence-based nuclear translocation reporter system. Upon binding of a ligand to a fluorescent-labeled reporter protein, the protein (and therefore the fluorescence) is translocated in a ligand level-dependent manner from the cytoplasm to the nucleus of live mammalian cells; this translocation is detectable as diffuse (cytoplasmic) fluorescence converting to localized, brightly fluorescent nuclei. The described methods, kits and system can be used to reliably detect very low levels of EDC contamination, including in high throughput analysis systems as described.
    Type: Application
    Filed: June 6, 2013
    Publication date: June 18, 2015
    Inventors: Gordon L. Hager, Diana A. Stavreva
  • Patent number: 9040248
    Abstract: Described herein are compositions, a system, and kits for detection of endocrine disruptor chemicals (EDCs) in environmental samples, such as samples of water including but not limited to waste water treatment plant effluent, using a live-cell fluorescence-based nuclear translocation reporter system. Upon binding of a ligand to a fluorescent-labeled reporter protein, the protein (and therefore the fluorescence) is translocated in a ligand level-dependent manner from the cytoplasm to the nucleus of live mammalian cells; this translocation is detectable as diffuse (cytoplasmic) fluorescence converting to localized, brightly fluorescent nuclei. The described kits can be used to reliably detect very low levels of EDC contamination, including in high throughput analysis systems as described.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 26, 2015
    Assignee: The United States of America, as represented by the Secretary, Department of Health and Human Services
    Inventors: Gordon L. Hager, Diana A. Stavreva
  • Publication number: 20130330741
    Abstract: Described herein are compositions, a system, and kits for detection of endocrine disruptor chemicals (EDCs) in environmental samples, such as samples of water including but not limited to waste water treatment plant effluent, using a live-cell fluorescence-based nuclear translocation reporter system. Upon binding of a ligand to a fluorescent-labeled reporter protein, the protein (and therefore the fluorescence) is translocated in a ligand level-dependent manner from the cytoplasm to the nucleus of live mammalian cells; this translocation is detectable as diffuse (cytoplasmic) fluorescence converting to localized, brightly fluorescent nuclei. The described kits can be used to reliably detect very low levels of EDC contamination, including in high throughput analysis systems as described.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 12, 2013
    Inventors: Gordon L. Hager, Diana A. Stavreva