Patents by Inventor George M. Murray
George M. Murray 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).
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Patent number: 11000844Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.Type: GrantFiled: April 9, 2019Date of Patent: May 11, 2021Assignee: TechSource, Inc.Inventor: George M. Murray
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Publication number: 20190232272Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.Type: ApplicationFiled: April 9, 2019Publication date: August 1, 2019Applicant: TechSource, Inc.Inventor: George M. Murray
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Patent number: 10252259Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.Type: GrantFiled: June 2, 2016Date of Patent: April 9, 2019Assignee: TechSource, Inc.Inventor: George M Murray
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Publication number: 20160354770Abstract: Ion exchange resin macroporous beads for the highly selective extraction of univalent anions from aqueous solutions. A specific example is the removal of dicyanoaurate and dicyanoargentate from cyanide leach solutions and tailings. The beads have a maximum number of ligands specific for the desired univalent anion, while maintaining sufficient separation to minimize binding of polyvalent ions. The beads are prepared using a functionalized monomer with the use of a specifically tuned coordinator. The beads can be used as a sensor for detecting the amount of anions captured when interrogated by an appropriate light source.Type: ApplicationFiled: June 2, 2016Publication date: December 8, 2016Inventor: George M Murray
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Patent number: 8591842Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.Type: GrantFiled: September 27, 2011Date of Patent: November 26, 2013Assignee: The Johns Hopkins UniversityInventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
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Publication number: 20120288944Abstract: A method for detecting a taggant molecular structure in a fluid includes providing a molecularly imprinted polymer sensor device, contacting a molecularly imprinted crosslinked star polymer with the fluid, and correlating a color change in the fluid with the amount of the taggant molecular structure in the fluid. The device has polymer arms attached to a core, and the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator. The displacement molecule is selectively removed from the molecularly imprinted crosslinked polymer upon exposure to the taggant molecular structure in the fluid thereby indicating the presence of the taggant molecular structure in the fluid based on a loss of color along a length of a housing.Type: ApplicationFiled: July 20, 2012Publication date: November 15, 2012Applicant: THE JOHNS HOPKINS UNIVERSITYInventors: George M. Murray, Andrew F. Mason, Edward W. Ott, JR.
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Patent number: 8241575Abstract: A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.Type: GrantFiled: January 27, 2009Date of Patent: August 14, 2012Assignee: The Johns Hopkins UniversityInventors: George M. Murray, Andrew F. Mason, Edward W. Ott, Jr.
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Publication number: 20120164027Abstract: A device for measuring and detecting the organophosphorus compounds, such as a pesticides or a nerve agents is provided. The devices function by selectively binding an organophosphorous compound to a luminescent functionality-imprinted copolymer. The copolymers possess a securely bound luminescent lanthanide ion, such as Eu3+, in a coordination complex that has been templated for the chemical functionality.Type: ApplicationFiled: August 26, 2008Publication date: June 28, 2012Inventors: George M. Murray, O. Manuel Uy, Amanda L. Jenkins
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Publication number: 20120012530Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.Type: ApplicationFiled: September 27, 2011Publication date: January 19, 2012Applicant: JOHNS HOPKINS UNIVERSITYInventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
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Patent number: 8058208Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.Type: GrantFiled: August 11, 2006Date of Patent: November 15, 2011Assignee: The Johns Hopkins UniversityInventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
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Publication number: 20110049390Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.Type: ApplicationFiled: November 4, 2010Publication date: March 3, 2011Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
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Patent number: 7830515Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.Type: GrantFiled: June 18, 2008Date of Patent: November 9, 2010Assignee: The Johns Hopkins UniversityInventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
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Patent number: 7799568Abstract: A method for identifying a product includes providing a solid body (10) fabricated from at least a molecularly imprinted polymer having molecular sized cavities (12) adapted to selectively receive and bind molecules (50) having a specific taggant molecular structure (51), the molecular sized cavities (12) disposed on a portion of an exterior surface (11) of the body (10), and applying to the surface of the body a composition containing indicator molecules (50) having a taggant moiety (51) at one end and a marking function group (53) tethered to the taggant moiety (51) by a molecular chain the taggant moieties (51) engaging and binding to the molecular sized cavities (12) so as to mark the portion of the surface (11) of the body (10) with the indicator molecules (50) bound thereto, the marking functional groups (53) rendering the marked portion of the surface (11) perceptible with or without detection instrumentation.Type: GrantFiled: October 4, 2004Date of Patent: September 21, 2010Assignee: The Johns Hopkins UniversityInventors: Harry K. Charles, Jr., George M. Murray
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Patent number: 7678870Abstract: A process is provided herein for preparing molecularly imprinted polymers for detecting a target analyte by Reversible Addition Fragmentation Chain Transfer (RAFT). The process includes providing a complex having the formula L3M wherein L is a ?-diketone ligand containing a chain transfer moiety and L3 can be the same or different ligands, and M is a lanthanide element; reacting the complex with the target analyte to provide an adduct containing the target analyte; co-polymerizing the adduct with a monomer and cross-linking agent to provide a polymer; and removing the target analyte from the polymer to provide the molecularly imprinted polymer.Type: GrantFiled: October 4, 2004Date of Patent: March 16, 2010Assignee: The Johns Hopkins UniversityInventors: Glen E. Southard, George M. Murray
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Publication number: 20090197297Abstract: A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.Type: ApplicationFiled: January 27, 2009Publication date: August 6, 2009Inventors: George M. Murray, Andrew F. Mason, Edward W. Ott, JR.
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Patent number: 7494769Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.Type: GrantFiled: April 16, 2003Date of Patent: February 24, 2009Assignee: The Johns Hopkins UniversityInventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
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Publication number: 20080264868Abstract: A molecularly imprinted polymer ion exchange resin for selectively removing one or more inorganic ions in a liquid medium is disclosed and described. The exchange resin can include a bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in a liquid medium. A process for preparing a molecularly imprinted polymer ion exchange resin can include (a) polymerizing a polmerizable mixture in the presence of an inorganic ion imprinting complex to form a bead, said inorganic ion imprinting complex including a ligand and an inorganic ion; and (b) removing the inorganic ions from the bead to form the molecularly imprinted polymer ion exchange resin, the bead having a porous structure and comprising a cross-linked molecularly imprinted polymer having molecular sized cavities adapted to selectively receive and bind a specific inorganic ion in an liquid medium.Type: ApplicationFiled: August 11, 2006Publication date: October 30, 2008Inventors: George M. Murray, Kelly A. Van Houten, Glen E. Southard
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Publication number: 20080254502Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.Type: ApplicationFiled: June 18, 2008Publication date: October 16, 2008Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
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Patent number: 7416703Abstract: A device for measuring and detecting the organophosphonis compounds, such as a pesticides or a nerve agents is provided. The devices function by selectively binding an organophosphorous compound to a luminescent functionality-imprinted copolymer. The copolymers possess a securely bound luminescent lanthamide ion, such as Eu3+, in a coordination complex that has been templated for the chemical functionality.Type: GrantFiled: August 16, 2004Date of Patent: August 26, 2008Assignee: The Johns Hopkins UniversityInventors: George M. Murray, O. Manuel Uy, Amanda L. Jenkins
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Publication number: 20080144002Abstract: A molecularly imprinted polymer sensor device for detecting a specific inorganic target ion is disclosed. The device includes at least one or more molecularly imprinted polymer beads comprising a macroporous structure having a plurality of complexing cavities therein, wherein the complexing cavities contain cationic ligands spatially oriented to selectively receive and bind a specific inorganic target ion to be detected and having operatively associated therewith a light source for generating excitation energy of the beads.Type: ApplicationFiled: December 17, 2007Publication date: June 19, 2008Inventors: George M. Murray, Glen E. Southard