Patents by Inventor Jean-Christophe P. Gabriel
Jean-Christophe P. Gabriel 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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Publication number: 20100047901Abstract: A nanoelectronic device is combined with a cellular membrane component to provide a sensor for biomolecules or to provide information about the structure of the membrane. The nanoelectronic device may comprise a network of randomly-oriented nanotubes, or other nanostructure, arranged on a substrate with adjacent electrodes so as to operate as a field-effect transistor sensor or as a capacitive sensor. A cellular membrane is disposed over the nanostructure element.Type: ApplicationFiled: October 28, 2009Publication date: February 25, 2010Applicant: Nanomix, Inc.Inventors: Keith Bradley, Jean-Christophe P. Gabriel, George Grüner, Alexander Star, Eugene Tu, Christian Valcke
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Patent number: 7575933Abstract: An electronic system for selectively detecting and identifying a plurality of chemical species, which comprises an array of nanostructure sensing devices, is disclosed. Within the array, there are at least two different selectivities for sensing among the nanostructure sensing devices. Methods for fabricating the electronic system are also disclosed. The methods involve modifying nanostructures within the devices to have different selectivity for sensing chemical species. Modification can involve chemical, electrochemical, and self-limiting point defect reactions. Reactants for these reactions can be supplied using a bath method or a chemical jet method. Methods for using the arrays of nanostructure sensing devices to detect and identify a plurality of chemical species are also provided.Type: GrantFiled: May 27, 2005Date of Patent: August 18, 2009Assignee: Nanomix, Inc.Inventors: Jean-Christophe P. Gabriel, Philip G. Collins, Keith Bradley, George Gruner
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Publication number: 20090165533Abstract: A nanostructure sensing device includes a substrate, a nanotube disposed over the substrate, and at least two conductive elements electrically connected to the nanotube. A electric current on the order of about 10 ?A, or greater, is passed through the conductive elements and the nanotube. As a result, the nanotube heats up relative to the substrate. In the alternative, some other method may be used to heat the nanotube. When operated as a sensor with a heated nanotube, the sensor's response and/or recovery time may be markedly improved.Type: ApplicationFiled: October 3, 2008Publication date: July 2, 2009Applicant: NANOMIX, INC.Inventors: Tzong-Ru Han, Alexander Star, Philip G. Collins, Jean-Christophe P. Gabriel, George Gruner, Keith Bradley
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Publication number: 20090101996Abstract: A nanoelectronic device includes a nanostructure, such as a nanotube or network of nanotube, disposed on a substrate. Nanoparticles are disposed on or adjacent to the nanostructure so as to operatively effect the electrical properties of the nanostructure. The nanoparticles may be composed of metals, metal oxides or salts and nanoparticles composed of different materials may be present. The amount of nanoparticles may be controlled to preserve semiconductive properties of the nanostructure, and the substrate immediately adjacent to the nanostructure may remain substantially free of nanoparticles. A method for fabricating the device includes electrodeposition of the nanoparticles using one of more solutions of dissolved ions while providing an electric current to the nanostructures but not to the surrounding substrate.Type: ApplicationFiled: November 10, 2008Publication date: April 23, 2009Applicant: NANOMIX, INC.Inventors: Keith BRADLEY, Alona J. Davis, Jean-Christophe P. Gabriel, Tzong-Ru Han, Vikram Joshi, Alexander Star
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Patent number: 7522040Abstract: A portable sensor device incorporates a low-power, nanostructure sensor coupled to a wireless transmitter. The sensor uses a nanostructure conducting channel, such as a nanotube network, that is functionalized to respond to a selected analyte. A measurement circuit connected to the sensor determines a change in the electrical characteristic of the sensor, from which information concerning the present or absence of the analyte may be determined. The portable sensor device may include a portable power source, such as a battery. It may further include a transmitter for wirelessly transmitting data to a base station.Type: GrantFiled: April 20, 2005Date of Patent: April 21, 2009Assignee: Nanomix, Inc.Inventors: John Loren Passmore, Jean-Christophe P. Gabriel, Alexander Star, Vikram Joshi, Sergei Skarupo
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Patent number: 7479240Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: GrantFiled: November 9, 2005Date of Patent: January 20, 2009Assignee: Nanomix, Inc.Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean-Christophe P. Gabriel
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Patent number: 7449757Abstract: A nanoelectronic device includes a nanostructure, such as a nanotube or network of nanotubes, disposed on a substrate. Nanoparticles are disposed on or adjacent to the nanostructure so as to operatively effect the electrical properties of the nanostructure. The nanoparticles may be composed of metals, metal oxides, or salts, and nanoparticles composed of different materials may be present. The amount of nanoparticles may be controlled to preserve semiconductive properties of the nanostructure, and the substrate immediately adjacent to the nanostructure may remain substantially free of nanoparticles. A method for fabricating the device includes electrodeposition of the nanoparticles using one or more solutions of dissolved ions while providing an electric current to the nanostructures but not to the surrounding substrate.Type: GrantFiled: September 20, 2004Date of Patent: November 11, 2008Assignee: Nanomix, Inc.Inventors: Keith Bradley, Alona J. Davis, Jean-Christophe P. Gabriel, Tzong-Ru Han, Vikram Joshi, Alexander Star
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Publication number: 20080221806Abstract: Sensors and detection systems suitable for measuring analytes, such as biomolecule, organic and inorganic species, including environmentally and medically relevant volatiles and gases, such as NO, NO2, CO2, NH3, H2, CO and the like, are provided. Certain embodiments of nanostructured sensor systems are configured for measurement of medically important gases in breath. Applications include the measurement of endogenous nitric oxide (NO) in breath, such as for the monitoring or diagnosis of asthma and other pulmonary conditions.Type: ApplicationFiled: October 25, 2007Publication date: September 11, 2008Applicant: NANOMIX, INC.Inventors: Craig Bryant, Ying-Lan Chang, Jean-Christophe P. Gabriel, Bradley N. Johnson, Oleksandr Kuzmych, William Mickelson, John Loren Passmore, Sergei Skarupo, Christian Valcke
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Patent number: 7312095Abstract: An electronic system for selectively detecting and identifying a plurality of chemical species, which comprises an array of nanostructure sensing devices, is disclosed. Within the array, there are at least two different selectivities for sensing among the nanostructure sensing devices. Methods for fabricating the electronic system are also disclosed. The methods involve modifying nanostructures within the devices to have different selectivity for sensing chemical species. Modification can involve chemical, electrochemical, and self-limiting point defect reactions. Reactants for these reactions can be supplied using a bath method or a chemical jet method. Methods for using the arrays of nanostructure sensing devices to detect and identify a plurality of chemical species are also provided.Type: GrantFiled: March 15, 2002Date of Patent: December 25, 2007Assignee: Nanomix, Inc.Inventors: Jean-Christophe P. Gabriel, Philip G. Collins, Keith Bradley, George Gruner
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Patent number: 6991773Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: GrantFiled: October 8, 2002Date of Patent: January 31, 2006Assignee: Nanomix, Inc.Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean-Christophe P. Gabriel
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Patent number: 6905655Abstract: An electronic system for selectively detecting and identifying a plurality of chemical species, which comprises an array of nanostructure sensing devices, is disclosed. Within the array, there are at least two different selectivities for sensing among the nanostructure sensing devices. Methods for fabricating the electronic system are also disclosed. The methods involve modifiying nanostructures within the devices to have different selectivity for sensing chemical species. Modification can involve chemical, electrochemical, and self-limiting point defect reactions. Reactants for these reactions can be supplied using a bath method or a chemical jet method. Methods for using the arrays of nanostructure sensing devices to detect and identify a plurality of chemical species are also provided.Type: GrantFiled: March 14, 2003Date of Patent: June 14, 2005Assignee: Nanomix, Inc.Inventors: Jean-Christophe P. Gabriel, Philip G. Collins, Keith Bradley, George Gruner
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Patent number: 6894359Abstract: Nanostructure sensing devices for detecting an analyte are described. The devices include nanostructures connected to conductive elements, all on a substrate. Contact regions adjacent to points of contact between the nanostructures and the conductive elements are given special treatment. The proportion of nanostructure surface area within contact regions can be maximized to effect sensing at very low analyte concentrations. The contact regions can be passivated in an effort to prevent interaction between the environment and the contact regions for sensing at higher analyte concentrations and for reducing cross-sensing. Both contact regions and at least some portion of the nanostructures can be covered with a material that is at least partially permeable to the analyte of interest and impermeable to some other species to tune selectivity and sensitivity of the nanostructure sensing device.Type: GrantFiled: October 26, 2002Date of Patent: May 17, 2005Assignee: Nanomix, Inc.Inventors: Keith Bradley, Philip G. Collins, Jean-Christophe P. Gabriel, George Gruner, Alexander Star
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Patent number: 6748748Abstract: A hydrogen storage and supply apparatus is described. The apparatus has a container that includes a cold enclosure. A porous material capable of occluding hydrogen pervades the cold enclosure. The porous material contains a plurality of light elements including Be, B, C, N, O, F, Mg, P, S, Li, Na, Al, Si and Cl. The cold enclosure can have a temperature in a range between about 30K and 270K and can withstand pressures up to about 50 bara. The container can have a layered wall structure with at least two walls, and there can be a cavity between the walls, which can provide thermal insulation. A hydrogen-consuming system is described in which the hydrogen storage and supply apparatus is used to provide hydrogen to a hydrogen-fueled device. A hydrogen production and distribution system, which used the hydrogen storage and supply apparatuses is described. Methods of storing, supplying and using hydrogen are also described.Type: GrantFiled: June 10, 2002Date of Patent: June 15, 2004Assignee: Nanomix, Inc.Inventors: Keith Bradley, Jeff D. Wyatt, Jean-Christophe P. Gabriel, George Gruner
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Publication number: 20040043527Abstract: Nanostructure sensing devices for detecting an analyte are described. The devices include nanostructures connected to conductive elements, all on a substrate. Contact regions adjacent to points of contact between the nanostructures and the conductive elements are given special treatment. The proportion of nanostructure surface area within contact regions can be maximized to effect sensing at very low analyte concentrations. The contact regions can be passivated in an effort to prevent interaction between the environment and the contact regions for sensing at higher analyte concentrations and for reducing cross-sensing. Both contact regions and at least some portion of the nanostructures can be covered with a material that is at least partially permeable to the analyte of interest and impermeable to some other species to tune selectivity and sensitivity of the nanostructure sensing device.Type: ApplicationFiled: October 26, 2002Publication date: March 4, 2004Applicant: Nanomix, Inc.Inventors: Keith Bradley, Philip G. Collins, Jean-Christophe P. Gabriel, George Gruner, Alexander Star
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Publication number: 20040031387Abstract: A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit with local regions of order, pores, and networks that provide surface area. Hydrogen is adsorbed by the medium with a heat of adsorption of about 9 kJ/mol to about 13 kJ/mol, a value which is higher than that of the heat of adsorption of hydrogen on carbon. The value for the heat of adsorption of hydrogen on the inventive storage medium is provided by computation, and corroborated by experimental observation. The higher heat of adsorption of the medium provides for operation at temperatures higher temperatures higher than those provided by carbon.Type: ApplicationFiled: October 8, 2002Publication date: February 19, 2004Applicant: Nanomix, Inc.Inventors: Seung-Hoon Jhi, Young-Kyun Kwon, Keith Bradley, Jean -Christophe P. Gabriel
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Patent number: 6672077Abstract: A hydrogen containing nanostructure is provided, where the hydrogen is adsorbed to the nanostructure by physisorption. The nanostructure includes light elements, selected from the second and third rows of the periodic table. The nanostructure is formed as a layered network of light elements coupled with covalent sp2 bonds. The chemical composition of the nanostructure can be such that the desorption temperature of hydrogen is greater than the liquefaction temperature of nitrogen, 77 K. Further, a hydrogen storage system is provided, including a container and a nanostructured storage material within the container, wherein the nanostructured storage material includes light elements, and the nanostructured storage material is capable of adsorbing hydrogen by physisorption. The hydrogen storage system can include a liquid nitrogen based cooling system, capable of cooling the nanostructured storage material below the desorption temperature of hydrogen.Type: GrantFiled: December 11, 2001Date of Patent: January 6, 2004Assignee: Nanomix, Inc.Inventors: Keith Bradley, Philip G. Collins, Jean-Christophe P. Gabriel, Young-Kyun Kwon, Seung-Hoon Jhi, George Grüner
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Publication number: 20030226365Abstract: A hydrogen storage and supply apparatus is described. The apparatus has a container that includes a cold enclosure. A porous material capable of occluding hydrogen pervades the cold enclosure. The porous material contains a plurality of light elements including Be, B, C, N, O, F, Mg, P, S, Li, Na, Al, Si and Cl. The cold enclosure can have a temperature in a range between about 30K and 270K and can withstand pressures up to about 50 bara. The container can have a layered wall structure with at least two walls, and there can be a cavity between the walls, which can provide thermal insulation. A hydrogen-consuming system is described in which the hydrogen storage and supply apparatus is used to provide hydrogen to a hydrogen-fueled device. A hydrogen production and distribution system, which used the hydrogen storage and supply apparatuses is described. Methods of storing, supplying and using hydrogen are also described.Type: ApplicationFiled: June 10, 2002Publication date: December 11, 2003Inventors: Keith Bradley, Jeff D. Wyatt, Jean-Christophe P. Gabriel, George Gruner
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Publication number: 20030175161Abstract: An electronic system for selectively detecting and identifying a plurality of chemical species, which comprises an array of nanostructure sensing devices, is disclosed. Within the array, there are at least two different selectivities for sensing among the nanostructure sensing devices. Methods for fabricating the electronic system are also disclosed. The methods involve modifiying nanostructures within the devices to have different selectivity for sensing chemical species. Modification can involve chemical, electrochemical, and self-limiting point defect reactions. Reactants for these reactions can be supplied using a bath method or a chemical jet method. Methods for using the arrays of nanostructure sensing devices to detect and identify a plurality of chemical species are also provided.Type: ApplicationFiled: March 14, 2003Publication date: September 18, 2003Applicant: Nanomix, Inc.Inventors: Jean-Christophe P. Gabriel, Philip G. Collins, Keith Bradley, George Gruner
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Publication number: 20030167778Abstract: A hydrogen containing nanostructure is provided, where the hydrogen is adsorbed to the nanostructure by physisorption. The nanostructure includes light elements, selected from the second and third rows of the periodic table. The nanostructure is formed as a layered network of light elements coupled with covalent sp2 bonds. The chemical composition of the nanostructure can be such that the desorption temperature of hydrogen is greater than the liquefaction temperature of nitrogen, 77 K. Further, a hydrogen storage system is provided, including a container and a nanostructured storage material within the container, wherein the nanostructured storage material includes light elements, and the nanostructured storage material is capable of adsorbing hydrogen by physisorption. The hydrogen storage system can include a liquid nitrogen based cooling system, capable of cooling the nanostructured storage material below the desorption temperature of hydrogen.Type: ApplicationFiled: March 31, 2003Publication date: September 11, 2003Applicant: Nanomix, Inc.Inventors: Keith Bradley, Philip G. Collins, Jean-Christophe P. Gabriel, Young-Kyun Kwon, Seung-Hoon Jhi, George Gruner