Patents by Inventor Elena Shevchenko
Elena Shevchenko 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).
-
Publication number: 20230392254Abstract: Polymers of intrinsic microporosity are used herein as polymer templates for forming mechanical robust inorganic porous coatings that can be beneficially used as anti-reflective coatings.Type: ApplicationFiled: June 6, 2022Publication date: December 7, 2023Inventors: Elena Shevchenko, Supratik Guha, Zhongbo Zhang, Cheng Ji
-
Publication number: 20230332286Abstract: The disclosure relates to a method for forming a low refractive index layer on a substrate. The method generally includes (a) applying a block copolymer layer on a substrate, the block copolymer including a polar polymeric block and a non-polar polymeric block; (b) swelling the block copolymer layer with a solvent to increase the block copolymer layer thickness; (c) depositing a metal oxide or metalloid oxide layer on polar polymeric blocks of the block copolymer layer; and (d) removing the block copolymer layer from the substrate, thereby forming a porous metal oxide or metalloid oxide layer on the substrate.Type: ApplicationFiled: June 20, 2023Publication date: October 19, 2023Inventors: Elena Shevchenko, Diana Berman, Supratik Guha
-
Patent number: 11725275Abstract: The disclosure relates to a method for forming a low refractive index layer on a substrate. The method generally includes (a) applying a block copolymer layer on a substrate, the block copolymer including a polar polymeric block and a non-polar polymeric block; (b) swelling the block copolymer layer with a solvent to increase the block copolymer layer thickness; (c) depositing a metal oxide or metalloid oxide layer on polar polymeric blocks of the block copolymer layer; and (d) removing the block copolymer layer from the substrate, thereby forming a porous metal oxide or metalloid oxide layer on the substrate.Type: GrantFiled: July 13, 2017Date of Patent: August 15, 2023Assignee: UCHICAGO ARGONNE, LLCInventors: Elena Shevchenko, Diana Berman, Supratik Guha
-
Publication number: 20210315929Abstract: Products and methods for redirecting the pathological biochemical process of accumulation of reduced pyridine nucleotides under deleterious hypoxia conditions toward the reduction of the precursor salt and the biosynthesis of biologically compatible, antioxidant noble metal nanoparticles and the simultaneous restoring of the tissue redox state are provided. The products and methods have application in the treatment of hypoxia and hypoxia-related diseases and disorders. Such products and methods are also useful in organ transplantation and recovery, in screening of anti-hypoxia agents, and in detecting elevated levels of the reducing equivalents of the redox state, for example, NADH, NADPH, GSH, and TrxSH2, in cells, tissues, or organs.Type: ApplicationFiled: April 8, 2020Publication date: October 14, 2021Inventors: Elena A. Rozhkova, Elena Shevchenko
-
Patent number: 11123713Abstract: Provided herein is a method of preparing a porous composite ceramic material and a porous composite ceramic material made by the method of preparing.Type: GrantFiled: June 25, 2019Date of Patent: September 21, 2021Assignees: UCHICAGO ARGONNE, LLC, UNIVERSITY OF NORTH TEXAS, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITYInventors: Diana Berman, Elena Shevchenko, Matteo Cargnello, Benjamin Diroll, Emmett Goodman
-
Publication number: 20210028451Abstract: The present invention provides a nanostructured metal oxide material for use as a component of an electrode in a sodium-ion battery. The material comprises a nanostructured titanium oxide film on a metal foil substrate, which can be produced by depositing or forming a nanostructured titanium dioxide material on the substrate, and then, optionally, charging and discharging the material in an electrochemical cell to improve the capacity and Coulombic efficiency thereof.Type: ApplicationFiled: October 8, 2020Publication date: January 28, 2021Applicant: UCHICAGO ARGONNE, LLCInventors: Christopher S. JOHNSON, Hui XIONG, Tijana RAJH, Elena SHEVCHENKO, Sanja TEPAVCEVIC
-
Publication number: 20200406235Abstract: Provided herein is a method of preparing a porous composite ceramic material and a porous composite ceramic material made by the method of preparing.Type: ApplicationFiled: June 25, 2019Publication date: December 31, 2020Inventors: Diana Berman, Elena Shevchenko, Matteo Cargnello, Benjamin Diroll, Emmett Goodman
-
Publication number: 20190017166Abstract: The disclosure relates to a method for forming a low refractive index layer on a substrate. The method generally includes (a) applying a block copolymer layer on a substrate, the block copolymer including a polar polymeric block and a non-polar polymeric block; (b) swelling the block copolymer layer with a solvent to increase the block copolymer layer thickness; (c) depositing a metal oxide or metalloid oxide layer on polar polymeric blocks of the block copolymer layer; and (d) removing the block copolymer layer from the substrate, thereby forming a porous metal oxide or metalloid oxide layer on the substrate.Type: ApplicationFiled: July 13, 2017Publication date: January 17, 2019Applicant: UCHICAGO ARGONNE, LLCInventors: Elena Shevchenko, Diana Berman, Supratik Guha
-
Publication number: 20180248185Abstract: The present invention provides a nanostructured metal oxide material for use as a component of an electrode in a lithium-ion or sodium-ion battery. The material comprises a nanostructured titanium oxide or vanadium oxide film on a metal foil substrate, produced by depositing or forming a nanostructured titanium dioxide or vanadium oxide material on the substrate, and then, optionally, charging and discharging the material in an electrochemical cell from a high voltage in the range of about 2.8 to 3.8 V, to a low voltage in the range of about 0.8 to 1.4 V over a period of about 1/30 of an hour or less. Lithium-ion and sodium-ion electrochemical cells comprising electrodes formed from the nanostructured metal oxide materials, as well as batteries formed from the cells, also are provided.Type: ApplicationFiled: March 15, 2018Publication date: August 30, 2018Applicant: UCHICAGO ARGONNE, LLCInventors: Christopher S. JOHNSON, Hui XIONG, Tijana RAJH, Elena SHEVCHENKO, Sanja TEPAVCEVIC
-
Patent number: 9991512Abstract: A thermally conductive electrochemical cell comprises a lithium ion-containing liquid electrolyte contacting a cathode and anode. The cathode and anode are in the form of electroactive sheets separated from each other by a membrane that is permeable to the electrolyte. One or more of the cathode and anode comprises two or more layers of carbon nanotubes, one of which layers includes electrochemically active nanoparticles and/or microparticles disposed therein or deposited on the nanotubes thereof. The majority of the carbon nanotubes in each of the layers are oriented generally parallel to the layers. Optionally, one or more of the layers includes an additional carbon material such as graphene, nanoparticulate diamond, microparticulate diamond, and a combination thereof.Type: GrantFiled: July 2, 2015Date of Patent: June 5, 2018Assignee: UCHICAGO ARGONNE, LLCInventors: Elena Shevchenko, Anirudha V. Sumant, Alexander Balandin, Bonil Koo, Christopher Johnson, Tijana Rajh, Eungje Lee
-
Patent number: 9935314Abstract: The present invention provides a nanostructured metal oxide material for use as a component of an electrode in a lithium-ion or sodium-ion battery. The material comprises a nanostructured titanium oxide or vanadium oxide film on a metal foil substrate, produced by depositing or forming a nanostructured titanium dioxide or vanadium oxide material on the substrate, and then charging and discharging the material in an electrochemical cell from a high voltage in the range of about 2.8 to 3.8 V, to a low voltage in the range of about 0.8 to 1.4 V over a period of about 1/30 of an hour or less. Lithium-ion and sodium-ion electrochemical cells comprising electrodes formed from the nanostructured metal oxide materials, as well as batteries formed from the cells, also are provided.Type: GrantFiled: March 27, 2014Date of Patent: April 3, 2018Assignee: UCHICAGO ARGONNE, LLCInventors: Christopher S. Johnson, Hui Xiong, Tijana Rajh, Elena Shevchenko, Sanja Tepavcevic
-
Publication number: 20160308263Abstract: A thermally conductive electrochemical cell comprises a lithium ion-containing liquid electrolyte contacting a cathode and anode. The cathode and anode are in the form of electroactive sheets separated from each other by a membrane that is permeable to the electrolyte. One or more of the cathode and anode comprises two or more layers of carbon nanotubes, one of which layers includes electrochemically active nanoparticles and/or microparticles disposed therein or deposited on the nanotubes thereof. The majority of the carbon nanotubes in each of the layers are oriented generally parallel to the layers. Optionally, one or more of the layers includes an additional carbon material such as graphene, nanoparticulate diamond, microparticulate diamond, and a combination thereof.Type: ApplicationFiled: July 2, 2015Publication date: October 20, 2016Inventors: Elena SHEVCHENKO, Anirudha V. SUMANT, Alexander BALANDIN, Bonil KOO, Christopher JOHNSON, Tijana RAJH, Eungje LEE
-
Patent number: 9391319Abstract: A cathode comprises, in its discharged state, a layer of hollow ?-Fe2O3 nanoparticles disposed between two layers of carbon nanotubes, and preferably including a metallic current collector in contact with one of the layers of carbon nanotubes. Individual particles of the hollow ?-Fe2O3 nanoparticles comprise a crystalline shell of ?-Fe2O3 including cation vacancies within the crystal structure of the shell (i.e., iron vacancies of anywhere between 3% to 90%, and preferably 44 to 77% of available octahedral iron sites). Sodium ions are intercalated within at least some of the cation vacancies within the crystalline shell of the hollow ?-Fe2O3 nanoparticles.Type: GrantFiled: December 18, 2013Date of Patent: July 12, 2016Assignee: UCHICAGO ARGONNE, LLCInventors: Elena Shevchenko, Tijana Rajh, Christopher S. Johnson, Bonil Koo
-
Publication number: 20150171419Abstract: A cathode comprises, in its discharged state, a layer of hollow ?-Fe2O3 nanoparticles disposed between two layers of carbon nanotubes, and preferably including a metallic current collector in contact with one of the layers of carbon nanotubes. Individual particles of the hollow ?-Fe2O3 nanoparticles comprise a crystalline shell of ?-Fe2O3 including cation vacancies within the crystal structure of the shell (i.e., iron vacancies of anywhere between 3% to 90%, and preferably 44 to 77% of available octahedral iron sites). Sodium ions are intercalated within at least some of the cation vacancies within the crystalline shell of the hollow ?-Fe2O3 nanoparticles.Type: ApplicationFiled: December 18, 2013Publication date: June 18, 2015Applicant: UCHICAGO ARGONNE, LLCInventors: Elena SHEVCHENKO, Tijana RAJH, Christopher S. JOHNSON, Bonil KOO
-
Publication number: 20140357910Abstract: An article and method of manufacture of a catalyst. The article includes a nanoparticle of a noble metal based on material with a primary alkylamine layer disposed on the surface of the nanoparticle catalyst. The alkylamine layer of at least about one monolayer establishes a minimum level of selectivity for hydrogenation reactions.Type: ApplicationFiled: May 30, 2013Publication date: December 4, 2014Inventors: Elena Shevchenko, Soongu Kwon, Emilio Bunel, Galyna Krylova, Julius Jellinek, Aslihan Sumer, Christopher L. Marshall
-
Publication number: 20140212733Abstract: The present invention provides a nanostructured metal oxide material for use as a component of an electrode in a lithium-ion or sodium-ion battery. The material comprises a nanostructured titanium oxide or vanadium oxide film on a metal foil substrate, produced by depositing or forming a nanostructured titanium dioxide or vanadium oxide material on the substrate, and then charging and discharging the material in an electrochemical cell from a high voltage in the range of about 2.8 to 3.8 V, to a low voltage in the range of about 0.8 to 1.4 V over a period of about 1/30 of an hour or less. Lithium-ion and sodium-ion electrochemical cells comprising electrodes formed from the nanostructured metal oxide materials, as well as batteries formed from the cells, also are provided.Type: ApplicationFiled: March 27, 2014Publication date: July 31, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Christopher S. JOHNSON, Hui XIONG, Tijana RAJH, Elena SHEVCHENKO, Sanja TEPAVCEVIC
-
Publication number: 20130146141Abstract: An article of manufacture and method for making a luminescent solar concentrator or a wavelength shifting device. The article includes a light guide or optical medium with a luminescent material disposed therein or deposited on the surface. The luminescent material is formulated to absorb incoming radiation and wavelength shift that radiation to a larger wavelength for processing and use, and to minimize reabsorption of the shifted radiation by the luminescent material.Type: ApplicationFiled: December 11, 2012Publication date: June 13, 2013Inventors: Matthew A. PELTON, Elena SHEVCHENKO, Seth B. DARLING, Roy J. HOLT, David H. POTTERVELD
-
Publication number: 20070057255Abstract: Nanoparticles coated with tetrazole and methods for preparing them are provided. The nanoparticles can be coated onto a substrate and used in fabricating devices such as field effect transistors, switches, sensors, solar cells and spring exchange magnets.Type: ApplicationFiled: November 13, 2006Publication date: March 15, 2007Applicants: International Business Machines Corporation, Columbia UniversityInventors: Christopher Murray, Elena Shevchenko, Dmitri Talapin