Patents Assigned to University of North Florida Board of Trustees
  • Patent number: 8298719
    Abstract: Passive recovery of liquid water from the cathode side of a polymer electrolyte membrane through the design of layers on the cathode side of an MEA and through the design of the PEM, may be used to supply water to support chemical or electrochemical reactions, either internal or external to the fuel cell, to support the humidification or hydration of the anode reactants, or to support the hydration of the polymer electrolyte membrane over its major surface or some combination thereof. Such passive recovery of liquid water can simplify fuel cell power generators through the reduction or elimination of cathode liquid water recovery devices.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: October 30, 2012
    Assignee: University of North Florida Board of Trustees
    Inventors: Alex Mossman, Brian Wells, Russell Barton, Henry Voss
  • Patent number: 7930923
    Abstract: A nanocrystalline ITO thin film formed on a quartz crystal microbalance (QCM) facilitates detection of gaseous compounds emitted from an analyte. Adsorption of gas molecules onto the nanocrystalline ITO thin film changes the resonant frequency of the quartz crystal. Parameters such as the frequency of oscillation, surface resistance, integrated frequency response, integrated surface resistance response, initial response slope, average return to baseline slope, and/or return to baseline time/initial response time ratio of the quartz crystal with the nanocrystalline ITO thin film formed thereon are determined. Using the determined parameters and principal component analysis, principal components for the gaseous compounds are also determined. These determined principal components may be compared with known principal components corresponding to known analytes.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: April 26, 2011
    Assignee: The University of North Florida Board of Trustees
    Inventors: Nirmalkumar G. Patel, Jay S. Huebner, Brian E. Stadelmaier, Jason J. Saredy
  • Publication number: 20100279425
    Abstract: A sensor for sensing gaseous chemicals includes a substrate, a variable resistance nanocrystalline ITO thin film formed on the substrate, and electrodes electrically coupled to the thin film. A sensor array assembly includes a sensor slide and a perforated interface circuit. The interface circuit abuts and electrically couples the sensor slide. The sensor slide includes several spaced apart ITO film strips formed on a slide substrate. A common electrode is electrically coupled to a common portion of each ITO film strip providing an electrically conductive path across the common portions of each of the plurality of spaced apart ITO film strips. A discrete electrode is electrically coupled to a discrete portion of each ITO film strip. The interface circuit is configured to abut and electrically couple to the sensor slide. A conductive discrete electrode pad electrically couples each of the plurality of discrete electrodes of the sensor slide to discrete terminals on the interface circuit.
    Type: Application
    Filed: November 11, 2007
    Publication date: November 4, 2010
    Applicant: THE UNIVERSITY OF NORTH FLORIDA BOARD OF TRUSTEES
    Inventor: Nirmalkumar G. Patel
  • Publication number: 20100251802
    Abstract: A nanocrystalline ITO thin film formed on a quartz crystal microbalance (QCM) facilitates detection of gaseous compounds emitted from an analyte. Adsorption of gas molecules onto the nanocrystalline ITO thin film changes the resonant frequency of the quartz crystal. Parameters such as the frequency of oscillation, surface resistance, integrated frequency response, integrated surface resistance response, initial response slope, average return to baseline slope, and/or return to baseline time/initial response time ratio of the quartz crystal with the nanocrystalline ITO thin film formed thereon are determined. Using the determined parameters and principal component analysis, principal components for the gaseous compounds are also determined. These determined principal components may be compared with known principal components corresponding to known analytes.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 7, 2010
    Applicant: THE UNIVERSITY OF NORTH FLORIDA BOARD OF TRUSTEES
    Inventors: Nirmalkumar G. Patel, Jay S. Huebner, Brian E. Stadelmaier, Jason J. Saredy
  • Publication number: 20090221025
    Abstract: A system for detecting a wide range of microbial organisms, including virus, and determining concentrations in near real-time to determine titer, without the requirement to grow micro-organisms includes an electrometer configured to measure photo-induced interfacial voltages and an electrode assembly with a substrate and at least one electrode on a surface of the substrate electrically coupled to the electrometer. An attachment factor is applied to an exposed surface of each electrode. The attachment factor is effective for interaction with the microbial organism. A transparent vessel for containing the electrolytic solution is provided. The microbial organism may be contained in the electrolytic solution or applied to the coated electrode before being submerged in the electrolytic solution.
    Type: Application
    Filed: July 15, 2008
    Publication date: September 3, 2009
    Applicant: THE UNIVERSITY OF NORTH FLORIDA BOARD OF TRUSTEES
    Inventors: Jay S. Huebner, Doria F. Bowers, Erica N. Mejia