Patents by Inventor Carlos Eduardo Duarte Guevara

Carlos Eduardo 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).

  • Thermal control of droplets by nanoscale field effect transistors
    Patent number: 9433943
    Abstract: Provided herein are methods and devices for rapidly and accurately heating fluid droplets surrounded by a gas-phase medium, such as air. Sub-nanoliter fluid droplets can be rapidly heated by nanoscale field effect transistors via microwave heating by an applied AC voltage to the FET. The heating is in a well-defined interior portion of the fluid droplet, with minimal heating of the outer portion of the fluid droplet, thereby minimizing evaporation. In this manner, rapid thermal cycling is possible, including independently and in parallel for a plurality of droplets. Accordingly, the methods and devices provided herein are used in point-of-care detection such as by PCR that is high speed, robust and of low cost.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: September 6, 2016
    Assignees: The Board of Trustees of the University of Illinois, Purdue Research Foundation
    Inventors: Rashid Bashir, Eric Salm, Carlos Eduardo Duarte Guevara, Muhammad Ashraf Alam
  • Thermal Control of Droplets by Nanoscale Field Effect Transistors
    Publication number: 20140363821
    Abstract: Provided herein are methods and devices for rapidly and accurately heating fluid droplets surrounded by a gas-phase medium, such as air. Sub-nanoliter fluid droplets can be rapidly heated by nanoscale field effect transistors via microwave heating by an applied AC voltage to the FET. The heating is in a well-defined interior portion of the fluid droplet, with minimal heating of the outer portion of the fluid droplet, thereby minimizing evaporation. In this manner, rapid thermal cycling is possible, including independently and in parallel for a plurality of droplets. Accordingly, the methods and devices provided herein are used in point-of-care detection such as by PCR that is high speed, robust and of low cost.
    Type: Application
    Filed: November 15, 2012
    Publication date: December 11, 2014
    Inventors: Rashid Bashir, Eric Salm, Carlos Eduardo Duarte Guevara, Muhammad Ashraf Alam