Patents by Inventor Girish Ramakrishnan

Girish Ramakrishnan 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: 20210404963
    Abstract: Systems and methods for performing non-destructive sensing of a cell or tissue, in vivo or in culture, are provided. The disclosed systems and methods include fabricating and powering one or more implantable integrated circuit (IC) chips that include a network of Photovoltaic (PV) cells for energy harvesting from an optical energy source, an optical modulator integrating Quantum Dot capacitors (QD-caps) for optical data transfer using fluorescence modulation, and sensing circuitry. The IC chip disclosed herein can measure a thickness of around 10 ?m, allowing injection into small cells and diffusion through tissue, it is powered and imaged under a microscope and communicates using fluorescence modulation imaged under a microscope.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 30, 2021
    Inventors: Kenneth SHEPARD, Girish RAMAKRISHNAN
  • Patent number: 11112360
    Abstract: Systems and methods for performing non-destructive sensing of a cell or tissue, in vivo or in culture, are provided. The disclosed systems and methods include fabricating and powering one or more implantable integrated circuit (IC) chips that include a network of Photovoltaic (PV) cells for energy harvesting from an optical energy source, an optical modulator integrating Quantum Dot capacitors (QD-caps) for optical data transfer using fluorescence modulation, and sensing circuitry. The IC chip disclosed herein can measure a thickness of around 10 ?m, allowing injection into small cells and diffusion through tissue, it is powered and imaged under a microscope and communicates using fluorescence modulation imaged under a microscope.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 7, 2021
    Assignee: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Kenneth Shepard, Girish Ramakrishnan
  • Patent number: 10647783
    Abstract: The present disclosure provides methods for functionalizing the surfaces of cellulose nanoparticles. In embodiments, nanoparticles are aerosolized, and then passed through a flow reactor where they are contacted with gaseous reactants to functionalize the surface of the nanoparticles. In other embodiments, the nanoparticles are aerosolized, and then passed through a plasma reactor where they are contacted with gaseous reactants to functionalize the surface of the nanoparticles. Once the functionalized nanoparticles are produced, they may be combined with polymers to form polymer composites having both a polymer and the functionalized nanoparticles. Systems for producing these functionalized nanoparticles, coupled with downstream polymer processing equipment for forming the polymer composites, are also provided.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: May 12, 2020
    Assignee: The Research Foundation for the State University of New York
    Inventors: Alexander Orlov, Daniel Knopf, Robert Grubbs, Girish Ramakrishnan
  • Publication number: 20190060663
    Abstract: Systems and methods for performing non-destructive sensing of a cell or tissue, in vivo or in culture, are provided. The disclosed systems and methods include fabricating and powering one or more implantable integrated circuit (IC) chips that include a network of Photovoltaic (PV) cells for energy harvesting from an optical energy source, an optical modulator integrating Quantum Dot capacitors (QD-caps) for optical data transfer using fluorescence modulation, and sensing circuitry. The IC chip disclosed herein can measure a thickness of around 10 ?m, allowing injection into small cells and diffusion through tissue, it is powered and imaged under a microscope and communicates using fluorescence modulation imaged under a microscope.
    Type: Application
    Filed: July 20, 2018
    Publication date: February 28, 2019
    Applicant: THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK
    Inventors: Kenneth Shepard, Girish Ramakrishnan
  • Publication number: 20190055324
    Abstract: The present disclosure provides methods for functionalizing the surfaces of cellulose nanoparticles. In embodiments, nanoparticles are aerosolized, and then passed through a flow reactor where they are contacted with gaseous reactants to functionalize the surface of the nanoparticles. In other embodiments, the nanoparticles are aerosolized, and then passed through a plasma reactor where they are contacted with gaseous reactants to functionalize the surface of the nanoparticles. Once the functionalized nanoparticles are produced, they may be combined with polymers to form polymer composites having both a polymer and the functionalized nanoparticles. Systems for producing these functionalized nanoparticles, coupled with downstream polymer processing equipment for forming the polymer composites, are also provided.
    Type: Application
    Filed: October 26, 2016
    Publication date: February 21, 2019
    Applicant: The Research Foundation for the State University of New York
    Inventors: Alexander Orlov, Daniel Knopf, Robert Grubbs, Girish Ramakrishnan