Patents by Inventor Carlos DUARTE-GUEVARA

Carlos DUARTE-GUEVARA 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).

  • Label Free Analyte Detection by Electronic Desalting and Field Effect Transistors
    Publication number: 20200103370
    Abstract: Provided are methods and devices for the label free detection of analytes in solution, including analytes suspended in a biological fluid. A field effect transistor (FET) is positioned in close proximity to a paired set of reference electrodes and the reference electrodes electrically biased to provide desalting and a stable gate voltage to the FET. In this manner, charged ions are depleted in the sensing region of the sensor and device sensitivity to analyte detection improved by the removal of charge that otherwise interferes with measurement. Also provided are methods and systems providing increased in reference electrode surface area and/or decrease in droplet volume to further improve label-free detection of analytes.
    Type: Application
    Filed: November 20, 2019
    Publication date: April 2, 2020
    Inventors: Rashid BASHIR, Vikhram VILASUR SWAMINATHAN, Bobby REDDY, JR., Eric M. SALM, Carlos DUARTE-GUEVARA
  • Label free analyte detection by electronic desalting and field effect transistors
    Patent number: 10527579
    Abstract: Provided are methods and devices for the label free detection of analytes in solution, including analytes suspended in a biological fluid. A field effect transistor (FET) is positioned in close proximity to a paired set of reference electrodes and the reference electrodes electrically biased to provide desalting and a stable gate voltage to the FET. In this manner, charged ions are depleted in the sensing region of the sensor and device sensitivity to analyte detection improved by the removal of charge that otherwise interferes with measurement. Also provided are methods and systems providing increased in reference electrode surface area and/or decrease in droplet volume to further improve label-free detection of analytes.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 7, 2020
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Rashid Bashir, Vikhram Vilasur Swaminathan, Bobby Reddy, Jr., Eric M. Salm, Carlos Duarte-Guevara
  • Label Free Analyte Detection by Electronic Desalting and Field Effect Transistors
    Publication number: 20170176379
    Abstract: Provided are methods and devices for the label free detection of analytes in solution, including analytes suspended in a biological fluid. A field effect transistor (FET) is positioned in close proximity to a paired set of reference electrodes and the reference electrodes electrically biased to provide desalting and a stable gate voltage to the FET. In this manner, charged ions are depleted in the sensing region of the sensor and device sensitivity to analyte detection improved by the removal of charge that otherwise interferes with measurement. Also provided are methods and systems providing increased in reference electrode surface area and/or decrease in droplet volume to further improve label-free detection of analytes.
    Type: Application
    Filed: March 27, 2015
    Publication date: June 22, 2017
    Inventors: Rashid BASHIR, Vikhram VILASUR SWAMINATHAN, Bobby REDDY, JR., Eric M. SALM, Carlos DUARTE-GUEVARA