Patents Assigned to University of Maryland Baltimore County
  • Patent number: 9500590
    Abstract: The present invention relates to an assay for the determination of a microorganism including a lysing chamber having triangular shaped metallic structures wherein the apexes of two triangles are arranged in alignment and forming a reactive zone for placement of the microorganism and lysing by microwave energy for exposing and isolating a target polynucleotide sequence. The isolated target polynucleotide sequence is introduced to an assay system for contact with polynucleotides which are complimentary to the isolated target polynucleotide sequence. Fluorophore-labeled capture polynucleotides are added for hybridizing to any bound target polynucleotide. Bound target polynucleotides are detected by metal enhanced fluorescence.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: November 22, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventor: Chris D. Geddes
  • Patent number: 9463496
    Abstract: A system and methods for removal of persistent organic pollutants (POPs) from an environment, where the system includes an inert and organic biofilm substrata as biofilm media for dual use: 1) inoculation of microorganisms to degrade POPs and 2) accumulation of POPs on the substrata, effective in maintaining bioavailable concentrations for sustaining microbial activity. Microorganisms capable of degrading or transforming POPs are actively associated with the substrata as a biofilm. Application of this delivery vehicle will enhance the microbial degradation of POPs, while simultaneously adsorbing hydrophobic POPs from the environment making them bioavailable for the microorganisms located in the formed biofilms and additionally lowering the aqueous concentration of POPs that have detrimental effects towards fish and mammals as they bioaccumulate through the food chain.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 11, 2016
    Assignee: University of Maryland Baltimore County
    Inventors: Kevin R. Sowers, Birthe Kjellerup, Upal Ghosh
  • Publication number: 20160286768
    Abstract: Methods for the production of reproductively sterile fish and aquatic animals for aquaculture, the aquarium trade, and control of invasive species are described. The methods include disruption of gonadal development through the administration of compounds that lead to the failure of fertile gonadal development. Compounds may be delivered to the eggs prior to fertilization or water activation or post fertilization and water activation by contacting unfertilized or pre-water-activated fertilized eggs or fertilized eggs in an immersion medium including the compound of interest. Compounds may be conjugated with a molecular transporter compound effective for chorionic transport of the conjugate. The compounds may be antisense Morpholino oligomers that are cap able of effectively suppressing the expression of the dead end gene or other essential genes for germ cell development in fish and other egg-producing aquatic animals.
    Type: Application
    Filed: November 14, 2014
    Publication date: October 6, 2016
    Applicant: University of Maryland Baltimore County
    Inventors: Yonathan Zohar, Ten-Tsao Wong
  • Patent number: 9459212
    Abstract: The present invention provides for mixed metal structures that can be deposited on a substrate or free in solution that exhibit several distinctive properties including a broad wavelength range for enhancing fluorescence signatures. Further, metal surface plasmons can couple and such diphase coupled luminescence signatures create extra plasmon absorption bands. The extra bands allow for a broad range of fluorophores to couple therefore making more generic substrates with wider reaching applications.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 4, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventor: Chris D. Geddes
  • Patent number: 9453797
    Abstract: The present invention provides for metallic nanostructures or nanoburgers comprising a dielectric layer positioned between metallic layers and their use in metal enhanced emissions systems to enhance emissions from fluorophores, including intrinsic and extrinsic; luminophores; bioluminescent species and/or chemiluminescent species. The multilayer nanoburgers exhibit several distinctive properties including significantly enhanced intensity of emissions, decreased lifetime and increased photostability by simply varying the thickness of the dielectric layer while maintaining a constant thickness of the two metallic layers on opposite sides of the dielectric layer.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: September 27, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventor: Chris D. Geddes
  • Patent number: 9444978
    Abstract: A turbulence-free CCD camera system with nonclassical imaging resolution, for applications in long- distance imaging, such as satellite and aircraft-to-ground based distant imaging, utilizing an intensity- fluctuation correlation measurement of thermal light. The proposed camera system has the following advantages over classic imaging technology: (1) it is turbulence-free; (2) its spatial resolution is mainly determined by the angular diameter of the light source. For example, using sun as the light source, this camera may achieve a spatial resolution of 200 micrometer for any object on Earth. 200-micrometer resolution is insignificant for short distance imaging, however, taking a picture of a target at 10-kilometer, a classic camera must have a lens of 90-meter diameter in order to achieve 200-micrometer resolution.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: September 13, 2016
    Assignee: The University of Maryland, Baltimore County
    Inventors: Yanhua Shih, Hui Chen, Tao Peng
  • Patent number: 9434742
    Abstract: The present invention provides for the design and synthesis of halogenated thieno- and pyrrolopyrimidine compounds that exhibit cancer proliferation inhibitory activity and the use thereof for cancer treatment.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: September 6, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventors: Katherine L. Radtke, Kartik Temburnikar
  • Patent number: 9388373
    Abstract: A bioprocessing system for protein manufacturing is provided that is compact, integrated and suited for on-demand production and delivery of therapeutic proteins to patients. The system can also be used for efficient on-demand production of any type of protein.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: July 12, 2016
    Assignee: University of Maryland Baltimore County
    Inventors: Govind Rao, Yordan Kostov, Leah Tolosa, Lam Hung, Xudong Ge, Douglas Frey, Virendra Singh
  • Patent number: 9339485
    Abstract: The present invention provides for a method to increase the triplet yield of a photosensitizer by the coupling to metal surface plasmons which leads to increased singlet oxygen generation by electric field enhancement or enhanced energy absorption of the photosensitizer. The extent of singlet oxygen enhancement can be tuned for applications in singlet oxygen based clinical therapy by modifying plasmon coupling parameters, such as metallic nanoparticle size and shape, photosensitizer/metallic nanoparticle distance, and the excitation wavelength of the coupling photosensitizer.
    Type: Grant
    Filed: January 27, 2008
    Date of Patent: May 17, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventor: Chris D. Geddes
  • Patent number: 9310303
    Abstract: In the present invention, it is demonstrated for the first time, the influence of electrical current on the ability of surface plasmons to amplify fluorescence signatures. An applied direct current across silver island films (SiFs) of low electrical resistance perturbs the fluorescence enhancement of close-proximity fluorophores. For a given applied current, surface plasmons in “just-continuous” low resistance films are sparsely available for fluorophore dipole coupling and hence the enhanced fluorescence is gated as a function of the applied current.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: April 12, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventor: Chris D. Geddes
  • Patent number: 9244012
    Abstract: The present invention relates to a method for fabricating a new silver coating/nanoparticle scaffold that significantly enhances the luminescence of near-field fluorophores via the metal enhanced fluorescence phenomenon. The silver coating/nanoparticle scaffold can be used for numerous applications in metal-enhanced fluorescence.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: January 26, 2016
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventors: Chris D. Geddes, Anatoliy I. Dragan
  • Patent number: 9222558
    Abstract: A geared infinitely variable transmission (GIVT) to provide a continuous output-to-input speed ratio from zero to a certain value is designed, and its working principle is illustrated. Crank-slider systems are used in the GIVT; the output-to-input speed ratio is changed with the crank length. Racks and pinions, controlled by planetary gear sets, are used to change the crank length when the cranks are rotating. One-way bearings rectify the output speeds from different crank-slider systems to obtain the output speed of the GIVT. Noncircular gears are used to minimize variations since the crank-slider systems can introduce variations of the instantaneous speed ratio. A direction control system is provided using planetary gear sets.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: December 29, 2015
    Assignee: THE UNIVERSITY OF MARYLAND BALTIMORE COUNTY
    Inventors: Weidong Zhu, Xuefeng Wang
  • Patent number: 9217746
    Abstract: The present invention relates to detecting and/or measuring scattering effects due to the aggregating metallic nanostructures or the interaction of plasmonic emissions from approaching metallic nanoparticles. The scattering effects may be measured at different angles, different wavelengths, changes in absorption and/or changes in polarization relative to changes in the distances between nanoparticles.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: December 22, 2015
    Assignee: UNIVERSITY OF MARYLAND BALTIMORE COUNTY
    Inventor: Chris D. Geddes
  • Patent number: 9170197
    Abstract: The present invention relates to an assay including a surface having silver colloids or islands attached thereto. Attached to the surface and/or silver colloids/islands are polynucleotides which are complimentary to a target polynucleotide sequence. The assay is performed by adding the target polynucleotide sequence to the assay surface and allowing it to hybridize with the capture polynucleotides. Fluorophore-labeled capture polynucleotides are added and hybridize to the target polynucleotide. Bound target polynucleotides are detected by metal enhanced fluorescence.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: October 27, 2015
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventors: Chris D. Geddes, Joseph R. Lakowicz, Leslie W. J. Baillie
  • Patent number: 9075018
    Abstract: The present invention relates to a method of imaging structures and features using plasmonic emissions from metallic surfaces caused by chemiluminescence based chemical and biological reactions wherein imaging of the reactions is enhanced by the use of microwave energy and further enhanced by using metallic geometric structures for spatially and temporally controlling the biological and chemical reactions.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: July 7, 2015
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventors: Chris D. Geddes, Michael Previte
  • Publication number: 20150158064
    Abstract: A system and methods for removal of persistent organic pollutants (POPs) from an environment, where the system includes an inert and organic biofilm substrata as biofilm media for dual use: 1) inoculation of microorganisms to degrade POPs and 2) accumulation of POPs on the substrata, effective in maintaining bioavailable concentrations for sustaining microbial activity. Microorganisms capable of degrading or transforming POPs are actively associated with the substrata as a biofilm. Application of this delivery vehicle will enhance the microbial degradation of POPs, while simultaneously adsorbing hydrophobic POPs from the environment making them bioavailable for the microorganisms located in the formed biofilms and additionally lowering the aqueous concentration of POPs that have detrimental effects towards fish and mammals as they bioaccumulate through the food chain.
    Type: Application
    Filed: February 3, 2015
    Publication date: June 11, 2015
    Applicant: University of Maryland Baltimore County
    Inventors: Kevin R. Sowers, Birthe Kjellerup, Upal Ghosh
  • Patent number: 8997694
    Abstract: A system and method for removal of phosphates from a closed loop estuarine or marine recirculating aquaculture system (RAS), involving denitrification in the presence of a media substrate for: 1) anaerobic nitrate, nitrite and ammonia removal and 2) sequestering of excess phosphate in the RAS. Phosphate is precipitated in or on the denitrifying biofilm formed on the media substrate as phosphate salts. The phosphate salt-containing media substrate can be removed from the RAS, the phosphates can be removed, and both the substrate and the phosphates can be reused or recycled.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: April 7, 2015
    Assignee: University of Maryland Baltimore County
    Inventors: Kevin R. Sowers, Keiko Saito, Harold J. Schreier
  • Patent number: 8993972
    Abstract: A fluorescence based sensor system that provides improved signal-to-noise over prior systems is provided. The system includes a fluorescence based sensing medium that is contained a recessed cavity with reflective sides that allow for more uniform excitation of the fluorescence based sensing medium by the excitation light.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: March 31, 2015
    Assignee: University of Maryland Baltimore County
    Inventors: Govind Rao, Hung Lam, Yordan Kostov, Leah Tolosa, Xudong Ge
  • Patent number: 8987004
    Abstract: The present invention relates to affinity biosensing using polarization of light scattering of aggregated noble metallic nanostructures to determine concentration of an analyte in a test sample. This new sensing system utilizes the changes in polarized plasmonic scattering from nanostructures as the nanostructures aggregate due to binding of the analyte to a binding partner attached to the surface of the metallic nanostructure.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: March 24, 2015
    Assignee: University of Maryland, Baltimore County
    Inventor: Chris D. Geddes
  • Patent number: 8980179
    Abstract: The present invention relates to detection of fluorescence, and more particularly, to the use of fluorescent moieties in proximity to metallic surfaces to change the spatial distribution of fluorescence in an angular dependent manner and detecting emissions at a determined optimal detection angle thereby increasing sensitivity of the detection.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: March 17, 2015
    Assignee: University of Maryland, Baltimore County
    Inventor: Chris D. Geddes