Patents by Inventor Ioana Voiculescu

Ioana Voiculescu 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).

  • Cell-on-chip stretchable platform for mammalian cells with integrated impedance spectroscpy technique
    Patent number: 11119064
    Abstract: An impedance spectroscopy biosensor is provided that is fabricated on a stretchable substrate. The stretchable substrate is integrated with an impedance biosensor that undergoes cyclic strain without cracking. The biosensor is formed by curing an elastomer precursor while on a pre-tensioned membrane that includes a conductive electrode. The resulting elastomeric material is released from the support after curing which releases the pre-tensioned state to produce the biosensor.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: September 14, 2021
    Assignee: Research Foundation of the City University of New York
    Inventors: Ioana Voiculescu, Xudong Zhang
  • CELL-ON-CHIP STRETCHABLE PLATFORM FOR MAMMALIAN CELLS WITH INTEGRATED IMPEDANCE SPECTROSCPY TECHNIQUE
    Publication number: 20190339217
    Abstract: An impedance spectroscopy biosensor is provided that is fabricated on a stretchable substrate. The stretchable substrate is integrated with an impedance biosensor that undergoes cyclic strain without cracking. The biosensor is formed by curing an elastomer precursor while on a pre-tensioned membrane that includes a conductive electrode. The resulting elastomeric material is released from the support after curing which releases the pre-tensioned state to produce the biosensor.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 7, 2019
    Inventors: Ioana Voiculescu, Xudong Zhang
  • Cell-on-chip stretchable platform for mammalian cells with integrated impedance spectroscpy technique
    Patent number: 10393685
    Abstract: An impedance spectroscopy biosensor is provided that is fabricated on a stretchable substrate. The stretchable substrate is integrated with an impedance biosensor that undergoes cyclic strain without cracking. The biosensor is formed by curing an elastomer precursor while on a pre-tensioned membrane that includes a conductive electrode. The resulting elastomeric material is released from the support after curing which releases the pre-tensioned state to produce the biosensor.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: August 27, 2019
    Assignee: Research Foundation of the City University of New York
    Inventors: Ioana Voiculescu, Xudong Zhang
  • CELL-ON-CHIP STRETCHABLE PLATFORM FOR MAMMALIAN CELLS WITH INTEGRATED IMPEDANCE SPECTROSCPY TECHNIQUE
    Publication number: 20170052135
    Abstract: An impedance spectroscopy biosensor is provided that is fabricated on a stretchable substrate. The stretchable substrate is integrated with an impedance biosensor that undergoes cyclic strain without cracking.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Inventors: Ioana Voiculescu, Xudong Zhang
  • Microelectro-mechanical chemical sensor
    Patent number: 7556775
    Abstract: A microelectro-mechanical chemical sensor includes an active cantilever beam having a chemically selective material layer disposed thereon and at least one, preferably two, resistors with the resistance corresponding to the cantilever beam deflection. The sensor also has at least two, and preferably four, auxiliary cantilever beams adjacent to the active cantilever and attached to the same substrate, each having a piezoresistor disposed thereon. The piezoresistors are elements of a Wheatstone bridge, and the Wheatstone bridge output indicates the amount of a predetermined target chemical sorbed by the chemically selective material layer. The sensor is electrostatically actuated in order to monitor the resonant frequency.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: July 7, 2009
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert Andrew McGill, Ioana Voiculescu, Gary K. Fedder
  • Microelectro-mechanical chemical sensor
    Publication number: 20050276726
    Abstract: A microelectro-mechanical chemical sensor includes an active cantilever beam having a chemically selective material layer disposed thereon and at least one, preferably two, resistors with the resistance corresponding to the cantilever beam deflection. The sensor also has at least two, and preferably four, auxiliary cantilever beams adjacent to the active cantilever and attached to the same substrate, each having a piezoresistor disposed thereon. The piezoresistors are elements of a Wheatstone bridge, and the Wheatstone bridge output indicates the amount of a predetermined target chemical sorbed by the chemically selective material layer. The sensor is electrostatically actuated in order to monitor the resonant frequency.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 15, 2005
    Inventors: Robert McGill, Ioana Voiculescu, Gary Fedder