Patents by Inventor Shelley D. Minteer
Shelley D. Minteer 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: 11441166Abstract: Devices, systems, and compositions of matter involving enzyme-mediated bioelectrocatalysis are disclosed and described. An enzyme electrode can include an electrode, a bioelectric material coupled to the electrode, the bioelectric material further including a water-permeable polymer matrix, a planar linker covalently coupled to the water-permeable polymer matrix and noncovalently coupled to the electrode, and electrochemically active oxidoreductase enzyme molecules functionally embedded in the water-permeable polymer matrix.Type: GrantFiled: May 7, 2019Date of Patent: September 13, 2022Assignee: University of Utah Research FoundationInventors: David P. Hickey, Shelley D. Minteer
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Publication number: 20200024631Abstract: Devices, systems, and compositions of matter involving enzyme-mediated bioelectrocatalysis are disclosed and described. An enzyme electrode can include an electrode, a bioelectric material coupled to the electrode, the bioelectric material further including a water-permeable polymer matrix, a planar linker covalently coupled to the water-permeable polymer matrix and noncovalently coupled to the electrode, and electrochemically active oxidoreductase enzyme molecules functionally embedded in the water-permeable polymer matrix.Type: ApplicationFiled: May 7, 2019Publication date: January 23, 2020Applicant: University of Utah Research FoundationInventors: David P. Hickey, Shelley D. Minteer
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Publication number: 20150125899Abstract: A fluorescence-assisted counting apparatus for quantitative and/or qualitative assessments of a population of fluorescently stained particles in a specimen device retaining fluorescently stained particles, wherein the apparatus includes a detector module and a light source. The detector module includes a lens, a first optical filter and a detector, wherein the detector detects a fluorescence response. The lens includes a field of view taking in at least a portion of the fluorescently stained particles within the specimen device. The light source, further including a second optical filter, shines light in a light path that encompasses at least a portion of the particles.Type: ApplicationFiled: November 7, 2014Publication date: May 7, 2015Inventors: Rebecca Willits, Vivek K. Nagarajan, Amy B. Harkins, Shelley D. Minteer
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Patent number: 8859151Abstract: Disclosed is an improved biofuel cell having a cathode comprising a dual function membrane, which contains an oxygen oxidoreductase enzyme immobilized within a buffered compartment of the membrane and an electron transport mediator which transfers electrons from an electron conducting electrode to the redox reaction catalyzed by the oxygen oxidoreductase enzyme. The improved biofuel cell also has an anode that contains an oxidoreductase enzyme that uses an organic fuel, such as alcohol, as a substrate. An electric current can flow between the anode and the cathode.Type: GrantFiled: August 31, 2004Date of Patent: October 14, 2014Assignee: St. Louis UniversityInventors: Shelley D. Minteer, Sabina Topcagic, Becky Treu
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Patent number: 8702792Abstract: A device delivers a chemical or biological agent, the device comprises an imprint molecule (IM) to be delivered by the device; an electroactive molecularly imprinted polymer (EMIP) imprinted with the imprint molecule, the EMIP having a plurality of binding sites capable of binding the imprint; and an electric potential producing member (EPM), the EPM being capable of producing an electric potential between the EPM and the EMIP; whereby when the EMIP has a predetermined density of imprint molecule bound at the binding sites, and whereby when a sufficient potential is produced between the EPM and the EMIP, the imprint molecule is released from the binding site and thereby delivered by the device.Type: GrantFiled: March 22, 2012Date of Patent: April 22, 2014Assignee: Saint Louis UniversityInventors: Shelley D. Minteer, Jenny Ulyanova
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Patent number: 8415059Abstract: Bioanodes, biocathodes, and biofuel cells comprising an electron conductor, at least one anode enzyme or cathode enzyme, and an enzyme immobilization material. The anode enzyme is capable of reacting with a fuel fluid to produce an oxidized form of the fuel fluid, and capable of releasing electrons to the electron conductor. The cathode enzyme is capable of reacting with an oxidant to produce water, and capable of gaining electrons from the electron conductor. The enzyme immobilization material for both the anode enzyme and the cathode enzyme is capable of immobilizing and stabilizing the enzyme, and is permeable to the fuel fluid and/or the oxidant.Type: GrantFiled: November 2, 2006Date of Patent: April 9, 2013Assignee: St. Louis UniversityInventors: Shelley D. Minteer, Becky L. Treu, Rodica Duma
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Publication number: 20130034888Abstract: Disclosed are methods for detecting cellulose in cellulosic materials and producing alcohol using cellulosic materials. More particularly, disclosed are methods for producing alcohol in a cell-free system by contacting pyruvate with enzymes from a minimal enzymatic pathway. Also disclosed are methods of producing pyruvate by culturing a microorganism under hypoxic conditions. Disclosed are methods for detecting cellulose in a sample using Congo red dye.Type: ApplicationFiled: August 3, 2012Publication date: February 7, 2013Inventors: Rajeev Aurora, Shelley D. Minteer
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Publication number: 20120197180Abstract: A device delivers a chemical or biological agent, the device comprises an imprint molecule (IM) to be delivered by the device; an electroactive molecularly imprinted polymer (EMIP) imprinted with the imprint molecule, the EMIP having a plurality of binding sites capable of binding the imprint; and an electric potential producing member (EPM), the EPM being capable of producing an electric potential between the EPM and the EMIP; whereby when the EMIP has a predetermined density of imprint molecule bound at the binding sites, and whereby when a sufficient potential is produced between the EPM and the EMIP, the imprint molecule is released from the binding site and thereby delivered by the device.Type: ApplicationFiled: March 22, 2012Publication date: August 2, 2012Inventors: Shelley D. Minteer, Jenny Ulyanova
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Patent number: 8216300Abstract: A device delivers a chemical or biological agent, the device comprises an imprint molecule (IM) to be delivered by the device; an electroactive molecularly imprinted polymer (EMIP) imprinted with the imprint molecule, the EMIP having a plurality of binding sites capable of binding the imprint; and an electric potential producing member (EPM), the EPM being capable of producing an electric potential between the EPM and the EMIP; whereby when the EMIP has a predetermined density of imprint molecule bound at the binding sites, and whereby when a sufficient potential is produced between the EPM and the EMIP, the imprint molecule is released from the binding site and thereby delivered by the device.Type: GrantFiled: November 6, 2008Date of Patent: July 10, 2012Assignee: Saint Louis UniversityInventors: Shelley D. Minteer, Jenny Ulyanova
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Publication number: 20110269029Abstract: A biofuel cell device for generating electrical current, comprising a fuel manifold, an anode assembly, a cathode assembly, a housing, and a controller is described. The anode assembly comprises at least one catalyst positioned for contact with fuel fluid in said fuel reservoir. The cathode assembly comprises at least one biocathode positioned for flow of an oxidant to the biocathode enzyme. The housing houses the manifold, anode assembly and cathode assembly. The controller controls the output of electrical current from the biofuel cell device.Type: ApplicationFiled: September 29, 2009Publication date: November 3, 2011Applicant: AKERMIN, INC.Inventors: Wayne L. Gellett, Joshua Schumacher, Tracy L. Bucholz, David Bao Le, Douglas A. Busekrus, Shelley D. Minteer, David Trentmann
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Patent number: 8048660Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.Type: GrantFiled: October 8, 2009Date of Patent: November 1, 2011Assignee: Saint Louis UniversityInventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore
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Publication number: 20110014549Abstract: Bioanodes, biocathodes, and biofuel cells comprising an electron conductor, at least one anode enzyme or cathode enzyme, and an enzyme immobilization material. The anode enzyme is capable of reacting with a fuel fluid to produce an oxidized form of the fuel fluid, and capable of releasing electrons to the electron conductor. The cathode enzyme is capable of reacting with an oxidant to produce water, and capable of gaining electrons from the electron conductor. The enzyme immobilization material for both the anode enzyme and the cathode enzyme is capable of immobilizing and stabilizing the enzyme, and is permeable to the fuel fluid and/or the oxidant.Type: ApplicationFiled: November 2, 2006Publication date: January 20, 2011Applicant: ST. LOUIS UNIVERSITYInventors: Shelley D. Minteer, Becky L. Treu, Rodica Duma
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Publication number: 20100225987Abstract: The present invention is directed to methods for making magnetically modified electrodes and electrodes made according to the method. Such electrode are useful as electrodes in batteries, such as Ni-MH batteries, Ni—Cd batteries, Ni—Zn batteries and Ni—Fe batteries.Type: ApplicationFiled: January 29, 2010Publication date: September 9, 2010Inventors: Johna LEDDY, Shelley D. Minteer
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Publication number: 20100209968Abstract: The present invention generally relates to uses of immobilized enzymes.Type: ApplicationFiled: May 5, 2008Publication date: August 19, 2010Applicant: AKERMIN, INC.Inventors: Niki L. Akers, James Stirling McLaren, Shelley D. Minteer, Wayne Gellett, Mehmet Kesmez, Richard T. Zvosec
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Patent number: 7709134Abstract: Microfluidic biofuel cells comprising a bioanode and/or a biocathode are formed using microfluidic principles and soft lithography. The enzymes utilized in the redox reactions at the bioanode and/or the biocathode are stabilized in a micellar or inverted micellar structure. The biofuel cell is used to produce high power densities.Type: GrantFiled: January 19, 2005Date of Patent: May 4, 2010Assignee: St. Louis UniversityInventors: Shelley D. Minteer, Robert S. Martin, Christine M. Moore
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Publication number: 20100092779Abstract: New magnetic materials and new metallic particles, new methods of making and using same, for example, to prepare magnetically modified electrodes and fuel cells, and coated metallic particles in general. The present invention discloses methods of preparation of cheaper and more uniformly sized magnetic and metallic microparticles formed from the exemplary materials magnetite, nickel, samarium cobalt and neodymium iron boron. In addition, the present invention discloses methodology for preparation and use of coated magnetic and metallic microparticles, in particular, exemplary siloxyl coating of magnetic particles, metallic particles, and magnetic and metallic microparticles with an exemplary silane, 3-aminopropyltrimethoxysilane, that is cross linked thereon. In addition, methods and results are described for preparing and using larger siloxyl coated samarium cobalt milliparticles.Type: ApplicationFiled: August 7, 2009Publication date: April 15, 2010Inventors: Johna LEDDY, Shelley D. Minteer, Wayne L. Gellett
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Patent number: 7691638Abstract: The present invention is directed to methods for determining electron transfer rates in systems involving metalloproteins. Metalloprotein/substrate electron transfer rates as well as metalloprotein self exchange rates may be modeled. Such electron transfer rates are useful in smart drug design and enzyme engineering.Type: GrantFiled: April 3, 2003Date of Patent: April 6, 2010Assignee: University of Iowa Research FoundationInventors: Johna Leddy, Shelley D. Minteer
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Publication number: 20100041123Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.Type: ApplicationFiled: October 8, 2009Publication date: February 18, 2010Applicant: St. Louis UniversityInventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore
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Patent number: 7638228Abstract: Disclosed are bioanodes comprising a quaternary ammonium treated Nafion® polymer membrane and a dehydrogenase incorporated within the treated Nafion® polymer. The dehydrogenase catalyzes the oxidation of an organic fuel and reduces an adenine dinucleotide. The ion conducting polymer membrane lies juxtaposed to a polymethylene green redox polymer membrane, which serves to electro-oxidize the reduced adenine dinucleotide. The bioanode is used in a fuel cell to produce high power densities.Type: GrantFiled: July 11, 2003Date of Patent: December 29, 2009Assignee: Saint Louis UniversityInventors: Shelley D. Minteer, Niki L. Akers, Christine M. Moore
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Publication number: 20090305113Abstract: Bioanodes, biocathodes, and biofuel cells comprising an electron conductor, at least one anode enzyme A) or cathode enzyme, and an enzyme immobilization material. The anode enzyme is capable of reacting with a fuel fluid to produce an oxidized form of the fuel fluid, and capable of releasing electrons to the electron conductor. The cathode enzyme is capable of reacting with an oxidant to produce water, and capable of gaining electrons from the electron conductor. The enzyme immobilization material for both the anode enzyme and the cathode enzyme is capable of immobilizing and stabilizing the enzyme, and is permeable to the fuel fluid and/or the oxidant.Type: ApplicationFiled: November 2, 2006Publication date: December 10, 2009Applicant: ST. LOUIS UNIVERSITYInventors: Shelley D. Minteer, Becky L. Treu, Rodica Duma