Patents by Inventor Evgeniya H. Lock
Evgeniya H. Lock 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: 11789004Abstract: A sensitive and selective, in-line method to measure and validate the sulfur content at ppb levels in both the liquid and gas phase of an analyte. The method includes patterning graphene, for example to form a mesa structure comprising horizontal or vertical lines or an array of multidentate star features; functionalizing the patterned graphene and attaching nanoparticles to the functionalized graphene to form a device; exposing the device to an analyte in the gas or liquid phase; detecting a change in electrical response when sulfur is present in the analyte; and recovering the device for future use. Also disclosed is the related sulfur detector.Type: GrantFiled: April 12, 2021Date of Patent: October 17, 2023Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, F. Keith Perkins, Anthony K. Boyd, Rachael L. Myers-Ward, David Kurt Gaskill, Anindya Nath
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Patent number: 11572281Abstract: A method for graphene functionalization that preserves electronic properties and enables nanoparticles deposition comprising providing graphene, functionalizing the graphene via non-covalent or covalent functionalization, rinsing the graphene, drying the graphene, and forming functionalized graphene wherein the functionalized graphene preserves electronic properties and enables nanoparticles deposition. A functionalized graphene wherein the graphene functionalization preserves electronic properties and enables nanoparticles deposition.Type: GrantFiled: January 29, 2018Date of Patent: February 7, 2023Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, Michael S. Osofsky, Raymond C Y Auyeung, Rachael L. Myers-Ward, David Kurt Gaskill, Joseph Prestigiacomo
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Patent number: 11225713Abstract: A method of making a transparent conductive graphene hybrid, comprising the steps of providing a PMMA/Graphene hybrid, functionalizing the PMMA/Graphene hybrid, providing a transparent substrate, oxidizing the transparent substrate, treating the oxidized substrate and forming a functionalized substrate, applying the PMMA/Graphene hybrid to the functionalized substrate, removing the PMMA, and forming a transparent conductive graphene hybrid. A transparent conductive graphene hybrid comprising a transparent substrate, wherein the transparent substrate is oxidized, and wherein the transparent substrate is treated with TFPA-NH2 to form a functionalized substrate, and a layer of graphene on the functionalized substrate.Type: GrantFiled: April 20, 2017Date of Patent: January 18, 2022Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, Nicholas A. Charipar, Alberto Piqué
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Publication number: 20210231633Abstract: A sensitive and selective, in-line method to measure and validate the sulfur content at ppb levels in both the liquid and gas phase of an analyte. The method includes patterning graphene, for example to form a mesa structure comprising horizontal or vertical lines or an array of multidentate star features; functionalizing the patterned graphene and attaching nanoparticles to the functionalized graphene to form a device; exposing the device to an analyte in the gas or liquid phase; detecting a change in electrical response when sulfur is present in the analyte; and recovering the device for future use. Also disclosed is the related sulfur detector.Type: ApplicationFiled: April 12, 2021Publication date: July 29, 2021Inventors: Evgeniya H. Lock, F. Keith Perkins, Anthony K. Boyd, Rachael L. Myers-Ward, David Kurt Gaskill, Anindya Nath
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Patent number: 10976297Abstract: A sensitive and selective, in-line method to measure and validate the sulfur content at ppb levels in both the liquid and gas phase of fuel. The method includes etching graphene, for example to form a mesa structure comprising horizontal or vertical lines or an array of multidentate star features; functionalizing the etched graphene and attaching metal oxide nanoparticles to the functionalized graphene to form a device; exposing the device to a fuel in the gas or liquid phase; detecting a change in conductivity when sulfur is present in the fuel; and recovering the device for future use. Also disclosed is the related in-line graphene-based ppb level sulfur detector for fuels.Type: GrantFiled: June 20, 2018Date of Patent: April 13, 2021Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, F. Keith Perkins, Anthony K. Boyd, Rachael L. Myers-Ward, David Kurt Gaskill, Anindya Nath
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Patent number: 10392248Abstract: A method for dry graphene transfer comprising growing graphene on a growth substrate, chemically modifying a transfer substrate to enhance its adhesion to graphene, contacting the graphene on the growth substrate with the transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate. The growth substrate may be copper foil. The transfer substrate may be a polymer, such as polystyrene or polyethylene, or an inorganic substrate.Type: GrantFiled: June 26, 2018Date of Patent: August 27, 2019Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, Mira Baraket, Scott G. Walton, Matthew Laskoski, Paul E. Sheehan, Shawn P. Mulvaney, Daniel R. Hines
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Publication number: 20190107524Abstract: A sensitive and selective, in-line method to measure and validate the sulfur content at ppb levels in both the liquid and gas phase of fuel. The method includes etching graphene, for example to form a mesa structure comprising horizontal or vertical lines or an array of multidentate star features; functionalizing the etched graphene and attaching metal oxide nanoparticles to the functionalized graphene to form a device; exposing the device to a fuel in the gas or liquid phase; detecting a change in conductivity when sulfur is present in the fuel; and recovering the device for future use. Also disclosed is the related in-line graphene-based ppb level sulfur detector for fuels.Type: ApplicationFiled: June 20, 2018Publication date: April 11, 2019Inventors: Evgeniya H. Lock, F. Keith Perkins, Anthony K. Boyd, Rachael L. Myers-Ward, David Kurt Gaskill, Anindya Nath
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Patent number: 10220364Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: GrantFiled: April 13, 2018Date of Patent: March 5, 2019Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Publication number: 20180305202Abstract: A method for dry graphene transfer comprising growing graphene on a growth substrate, chemically modifying a transfer substrate to enhance its adhesion to graphene, contacting the graphene on the growth substrate with the transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate. The growth substrate may be copper foil. The transfer substrate may be a polymer, such as polystyrene or polyethylene, or an inorganic substrate.Type: ApplicationFiled: June 26, 2018Publication date: October 25, 2018Inventors: Evgeniya H. Lock, Mira Baraket, Scott G. Walton, Matthew Laskoski, Paul E. Sheehan, Shawn P. Mulvaney, Daniel R. Hines
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Publication number: 20180229205Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: ApplicationFiled: April 13, 2018Publication date: August 16, 2018Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Publication number: 20180215623Abstract: A method for graphene functionalization that preserves electronic properties and enables nanoparticles deposition comprising providing graphene, functionalizing the graphene via non-covalent or covalent functionalization, rinsing the graphene, drying the graphene, and forming functionalized graphene wherein the functionalized graphene preserves electronic properties and enables nanoparticles deposition. A functionalized graphene wherein the graphene functionalization preserves electronic properties and enables nanoparticles deposition.Type: ApplicationFiled: January 29, 2018Publication date: August 2, 2018Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, Michael S. Osofsky, Raymond C Y Auyeung, Rachael L. Myers-Ward, David Kurt Gaskill, Joseph Prestigiacomo
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Patent number: 9962676Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: GrantFiled: March 31, 2015Date of Patent: May 8, 2018Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Publication number: 20170321321Abstract: A method of making a transparent conductive graphene hybrid, comprising the steps of providing a PMMA/Graphene hybrid, functionalizing the PMMA/Graphene hybrid, providing a transparent substrate, oxidizing the transparent substrate, treating the oxidized substrate and forming a functionalized substrate, applying the PMMA/Graphene hybrid to the functionalized substrate, removing the PMMA, and forming a transparent conductive graphene hybrid. A transparent conductive graphene hybrid comprising a transparent substrate, wherein the transparent substrate is oxidized, and wherein the transparent substrate is treated with TFPA-NH2 to form a functionalized substrate, and a layer of graphene on the functionalized substrate.Type: ApplicationFiled: April 20, 2017Publication date: November 9, 2017Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Evgeniya H. Lock, Nicholas A. Charipar, Alberto Piqué
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Publication number: 20160228840Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: ApplicationFiled: March 31, 2015Publication date: August 11, 2016Applicant: The Governmnet of the United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Patent number: 9182392Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: GrantFiled: February 7, 2014Date of Patent: November 10, 2015Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Publication number: 20140154791Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: ApplicationFiled: February 7, 2014Publication date: June 5, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Patent number: 8651158Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: GrantFiled: November 17, 2010Date of Patent: February 18, 2014Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt
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Publication number: 20120244358Abstract: A method for dry graphene transfer comprising growing graphene on a growth substrate, chemically modifying a transfer substrate to enhance its adhesion to graphene, contacting the graphene on the growth substrate with the transfer substrate and transfer printing; and separating the transfer substrate with attached graphene from the growth substrate. The growth substrate may be copper foil. The transfer substrate may be a polymer, such as polystyrene or polyethylene, or an inorganic substrate. Also disclosed is the related composite material made by this process.Type: ApplicationFiled: March 22, 2012Publication date: September 27, 2012Inventors: Evgeniya H. Lock, Scott G. Walton, Mira Baraket, Matthew Laskoski, Paul E. Sheehan, Shawn P. Mulvaney, Daniel R. Hines
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Publication number: 20110116992Abstract: Disclosed herein is a method of: treating an organic polymer with an electron beam-generated plasma; exposing the treated polymer to air or an oxygen- and hydrogen-containing gas, generating hydroxyl groups on the surface of the polymer; reacting the surface with an organosilane compound having a chloro, fluoro, or alkoxy group and a functional or reactive group that is less reactive with the surface than the chloro, fluoro, or alkoxy group; and covalently immobilizing a biomolecule to the functional or reactive group or a reaction product thereof.Type: ApplicationFiled: November 17, 2010Publication date: May 19, 2011Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Stella H. North, Evgeniya H. Lock, Scott G. Walton, Chris Rowe Taitt