Single-walled Patents (Class 977/750)
Cross-Reference Art Collections
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Publication number: 20140072505Abstract: The present invention is related to layered multiphase catalyst supports and to their use for production of helical carbon nanotubes. The metal(s) catalysts are deposited either by impregnation or by precipitation.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Inventors: Antonio Fonseca, Danilo Vuono, Janos B.Nagy
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Patent number: 8652391Abstract: Substrate containers formed from improved compositions comprise a polymer and carbon nanotubes to provide enhanced characteristics. In some embodiments, the carbon fibers, e.g., nanotubes, can be mechanically blended or incorporated into the polymer, while in some embodiments carbon nanotubes also may be covalently bonded to the polymer to form corresponding covalent materials. In particular, the polymer can be covalently bonded to the side walls of the carbon nanotubes to form a composite with particularly desirable mechanical properties. The processing of the nanotubes can be facilitated by the dispersion of the nanotubes in an aqueous solution comprising a hydrophylic polymer, such as ethyl vinyl acetate. A dispersion of nanotubes can be combined with a polymer in an extrusion process to blend the materials under high shear, such as in an extruder.Type: GrantFiled: August 23, 2006Date of Patent: February 18, 2014Assignee: Entegris, Inc.Inventor: Sanjiv M. Bhatt
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Patent number: 8646175Abstract: A method for making a conductive film exhibiting electric anisotropy comprises forming a nanomaterial on a substrate, the nanomaterial having a cluster of interconnected nanounits, each of which being substantially transverse to the substrate and having one end bonded to the substrate. The method further includes stretching the nanounits along a first direction to remove the nanomaterial from the substrate so as to form a conductive film having strings of interconnected nanounits, where the nanounits of the strings substantially extend in the first direction. A conductive plate and a method for making the same is also disclosed, where the method further comprises attaching the conductive film to a second substrate.Type: GrantFiled: June 29, 2010Date of Patent: February 11, 2014Assignee: Chimei Innolux CorporationInventors: Jeah-Sheng Wu, Jia-Shyong Cheng, Chih-Han Chao
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Publication number: 20140030183Abstract: Carbon nanotubes (CNTs) having a desired diameter are selectively produced by reacting a carbon source with a cyclic compound in which multiple aromatic rings are continuously bonded. The reaction is preferably performed by supplying a gaseous carbon source under reduced pressure and heating. The cyclic compound in which multiple aromatic rings are continuously bonded is preferably a cyclic compound in which bivalent aromatic hydrocarbon groups are continuously bonded, or a modified cycloparaphenylene compound in which a cycloparaphenylene compound or at least one phenylene group of the cycloparaphenylene compound is substituted with a condensed cyclic group such as a naphthylene group.Type: ApplicationFiled: March 8, 2012Publication date: January 30, 2014Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITYInventors: Kenichiro Itami, Yasutomo Segawa, Hisanori Shinohara, Ryo Kitaura
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Patent number: 8632633Abstract: Engineered defects are reproduced in-situ with graphene via a combination of surface manipulation and epitaxial reproduction. A substrate surface that is lattice-matched to graphene is manipulated to create one or more non-planar features in the hexagonal crystal lattice. These non-planar features strain and asymmetrically distort the hexagonal crystal lattice of epitaxially deposited graphene to reproduce “in-situ” engineered defects with the graphene. These defects may be defects in the classic sense such as Stone-Wales defect pairs or blisters, ridges, ribbons and metacrystals. Nano or micron-scale structures such as planar waveguides, resonant cavities or electronic devices may be constructed from linear or closed arrays of these defects. Substrate manipulation and epitaxial reproduction allows for precise control of the number, density, arrangement and type of defects. The graphene may be removed and template reused to replicate the graphene and engineered defects.Type: GrantFiled: August 25, 2010Date of Patent: January 21, 2014Assignee: Raytheon CompanyInventors: Delmar L. Barker, Brian J. Zelinski, William R. Owens
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Patent number: 8630091Abstract: Under one aspect, a method of cooling a circuit element includes providing a thermal reservoir having a temperature lower than an operating temperature of the circuit element; and providing a nanotube article in thermal contact with the circuit element and with the reservoir, the nanotube article including a non-woven fabric of nanotubes in contact with other nanotubes to define a plurality of thermal pathways along the article, the nanotube article having a nanotube density and a shape selected such that the nanotube article is capable of transferring heat from the circuit element to the thermal reservoir.Type: GrantFiled: April 19, 2011Date of Patent: January 14, 2014Assignee: Nantero Inc.Inventors: Jonathan W. Ward, Claude L. Bertin, Brent M. Segal
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Patent number: 8628692Abstract: Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes a liquid medium containing a controlled concentration of purified nanotubes, wherein the controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity, and wherein the spin-coatable liquid comprises less than 1×1018 atoms/cm3 of metal impurities. The spin-coatable liquid is substantially free of particle impurities having a diameter of greater than about 500 nm.Type: GrantFiled: May 25, 2012Date of Patent: January 14, 2014Assignee: Nantero Inc.Inventors: Rahul Sen, Ramesh Sivarajan, Thomas Rueckes, Brent M. Segal
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Publication number: 20140011286Abstract: Methods and sensors for selective fluid sensing are provided. A gas dosimeter includes a housing configured with an opening to admit an analyte. The gas dosimeter also includes a multivariate sensor disposed in the housing. The sensor is configured to determine a concentration of the analyte over time. In addition, the multivariate sensor includes an irreversible sensing material. Electrical properties of the irreversible sensing material are configured to change irreversibly upon exposure to the analyte.Type: ApplicationFiled: July 5, 2012Publication date: January 9, 2014Applicant: General Electric CompanyInventors: Radislav Alexandrovich Potyrailo, Hubert Tunchiao Lam, Zhexiong Tang, Nandini Nagraj
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Patent number: 8624224Abstract: Carbon nanotube (CNT)-based devices and technology for their fabrication are disclosed. The planar, multiple layer deposition technique and simple methods of change of the nanotube conductivity type during the device processing are utilized to provide a simple and cost effective technology for large scale circuit integration. Such devices as p-n diode, CMOS-like circuit, bipolar transistor, light emitting diode and laser are disclosed, all of them are expected to have superior performance then their semiconductor-based counterparts due to excellent CNT electrical and optical properties. When fabricated on semiconductor wafers, the CNT-based devices can be combined with the conventional semiconductor circuit elements, thus producing hybrid devices and circuits.Type: GrantFiled: January 7, 2011Date of Patent: January 7, 2014Assignee: Nano-Electronic and Photonic Devices and Circuits, LLCInventor: Alexander Kastalsky
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Publication number: 20140001110Abstract: The present invention provides a microfluidic filter system using three-dimensional carbon nanotube networks. The density of the carbon nanotubes can be adjusted such that particles having a specific size can be filtered. In addition, the network structures can be maintained even in a fluid. The present invention also provides a method for preparing the microfluidic filter system.Type: ApplicationFiled: October 25, 2011Publication date: January 2, 2014Inventors: Hai Won Lee, Bio Park, Jung Eun Seo, Simon Song
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Publication number: 20130337326Abstract: A positive active material including a lithium transition metal oxide with a layered or spinel structure; and a plurality of CNTs on a surface of the lithium transition metal oxide.Type: ApplicationFiled: December 6, 2012Publication date: December 19, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun-young MUN, Jin-hwan PARK, Jae-gu YOON, Jun-ho PARK
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Patent number: 8610125Abstract: Carbon nanotube (CNT)-based devices and technology for their fabrication are disclosed. The planar, multiple layer deposition technique and simple methods of change of the nanotube conductivity type during the device processing are utilized to provide a simple and cost effective technology for large scale circuit integration. Such devices as p-n diode, CMOS-like circuit, bipolar transistor, light emitting diode and laser are disclosed, all of them are expected to have superior performance then their semiconductor-based counterparts due to excellent CNT electrical and optical properties. When fabricated on semiconductor wafers, the CNT-based devices can be combined with the conventional semiconductor circuit elements, thus producing hybrid devices and circuits.Type: GrantFiled: January 7, 2011Date of Patent: December 17, 2013Assignee: Nano-Electronic and Photonic Devices and Circuits, LLCInventor: Alexander Kastalsky
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Patent number: 8610104Abstract: Carbon nanotube (CNT)-based devices and technology for their fabrication are disclosed. The planar, multiple layer deposition technique and simple methods of change of the nanotube conductivity type during the device processing are utilized to provide a simple and cost effective technology for large scale circuit integration. Such devices as p-n diode, CMOS-like circuit, bipolar transistor, light emitting diode and laser are disclosed, all of them are expected to have superior performance then their semiconductor-based counterparts due to excellent CNT electrical and optical properties. When fabricated on semiconductor wafers, the CNT-based devices can be combined with the conventional semiconductor circuit elements, thus producing hybrid devices and circuits.Type: GrantFiled: January 7, 2011Date of Patent: December 17, 2013Assignee: Nano-Electronic and Photonic Devices and Circuits, LLCInventor: Alexander Kastalsky
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Patent number: 8608989Abstract: Fire retardant materials arc provided that contain carbon nanotubes and particles capable of endothermically reacting when exposed to elevated temperatures. The carbon nanotubes may be a buckypaper. Methods also are provided for making a fire retardant material and for improving the fire retardation capabilities of a material.Type: GrantFiled: March 2, 2012Date of Patent: December 17, 2013Assignee: Florida State University Research Foundation, Inc.Inventors: Changchun Zeng, Chuck Zhang, Ben Wang, Richard Liang, Chase Knight
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Patent number: 8608990Abstract: Fire retardant materials are provided that contain carbon nanotubes and particles capable of endothermically reacting when exposed to elevated temperatures. The carbon nanotubes may be a buckypaper. Methods also are provided for making a fire retardant material and for improving the fire retardation capabilities of a material.Type: GrantFiled: December 14, 2012Date of Patent: December 17, 2013Assignee: Florida State University Research Foundation, Inc.Inventors: Changchun Zeng, Chuck Zhang, Ben Wang, Richard Liang, Chase Knight
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Publication number: 20130324447Abstract: Provided is a method for stabilizing a dispersion of a carbon nanomaterial in a lubricating oil basestock. The method includes providing a lubricating oil basestock; dispersing a carbon nanomaterial in the lubricating oil basestock; and adding at least one block copolymer thereto. The at least one block copolymer has two or more blocks includes at least one alkenylbenzene block and at least one linear alpha olefin block. The at least one block copolymer is present in an amount sufficient to stabilize the dispersion of the carbon nanomaterial in the lubricating oil basestock. Also provided is a lubricating engine oil having a composition including: a lubricating oil base stock; a carbon nanomaterial dispersed in the lubricating oil basestock; and at least one block copolymer.Type: ApplicationFiled: June 1, 2012Publication date: December 5, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Andy Haishung Tsou, Vera Minak-Bernero, Martin N. Webster, Nikos Hadjichristidis
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Publication number: 20130323607Abstract: A secondary electrochemical cell comprises an anode, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The electrolyte comprises at least one salt dissolved in at least one organic solvent. The separator in combination with the electrolyte has an area-specific resistance of less than about 2 ohm-cm2.Type: ApplicationFiled: May 29, 2012Publication date: December 5, 2013Inventors: Nikolai Nikolaevich ISSAEV, Alexander KAPLAN, Junan KAO, Kirakodu Seetharama NANJUNDASWAMY, Michael POZIN, Fan ZHANG
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Patent number: 8596466Abstract: A method of forming a nanotube grid includes placing a plurality of catalyst nanoparticles on a grid framework, contacting the catalyst nanoparticles with a gas mixture that includes hydrogen and a carbon source in a reaction chamber, forming an activated gas from the gas mixture, heating the grid framework and activated gas, and controlling a growth time to generate a single-wall carbon nanotube array radially about the grid framework. A filter membrane may be produced by this method.Type: GrantFiled: September 11, 2007Date of Patent: December 3, 2013Assignee: William Marsh Rice UniversityInventors: Robert H. Hauge, Ya-Qiong Xu, Sean Pheasant
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Patent number: 8591858Abstract: Methods and processes for synthesizing high quality carbon single-walled nanotubes (SWNTs) are provided. The method provides the means for optimization of amount of carbon precursor and transport gas per unit weight of catalyst. In certain aspects, methods are provided wherein a supported metal catalyst is contacted with a carbon precursor gas at about one atmosphere pressure, wherein SWNTs are synthesized at a growth rate of about 0.002 ?m/sec to about 0.003 ?m/sec and the SWNTs have a ratio of G-band to D-band in Raman spectra (IG:ID) of greater than about 4. Efficiencies of about 20% can be achieved when contacting the catalyst deposited on a support with a carbon precursor gas with a flow rates of about 4.2×10?3 mol CH4/sec·g (Fe) at 780° C. Hydrocarbon flow rates of about 1.7 10?2 mol CH4/sec·g (Fe) and higher result in faster carbon SWNTs growth with improved quality. Slower rates of carbon atoms supply (˜4.5×1020 C atoms/s·g Fe or 6.Type: GrantFiled: May 1, 2008Date of Patent: November 26, 2013Assignee: Honda Motor Co., Ltd.Inventors: Avetik R. Harutyunyan, Elena Mora
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Publication number: 20130310495Abstract: Disclosed is an elastomer-conductive filler composite with improved dielectric properties. The composite includes conductive fillers and an ionic liquid dispersing the conductive fillers. The ionic liquid is used as a dispersant to effectively enhance the dispersion of the conductive fillers, achieving a high dielectric constant and a low dielectric loss of the composite without deteriorating the physical properties of the conductive fillers. The use of the ionic liquid can reduce the number of processing steps and the presence of the conductive fillers at a low concentration in the composite can minimize deterioration of the physical properties of the elastomer. Further disclosed is a method for producing the composite.Type: ApplicationFiled: December 4, 2012Publication date: November 21, 2013Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Heesuk KIM, Kiwon OH, Soon Ho LIM, Sang-Soo LEE, Tae Ann KIM, Min PARK
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Publication number: 20130306870Abstract: Carbon nanotube compositions suitable for printing, methods of making carbon nanotube compositions, and substrates having a print thereon containing carbon nanotube compositions, and uses thereof. The carbon nanotubes of the compositions are individualized. The carbon nanotube compositions can be used in applications, such as document security.Type: ApplicationFiled: May 21, 2013Publication date: November 21, 2013Applicant: UNIVERSITY OF MARYLANDInventors: Jarrett Leeds, YuHuang Wang, John T. Fourkas
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Publication number: 20130302697Abstract: A magnesium-ion cell comprising (a) a cathode comprising a carbon or graphitic material as a cathode active material having a surface area to capture and store magnesium thereon, wherein the cathode forms a meso-porous structure having a pore size from 2 nm to 50 nm and a specific surface area greater than 50 m2/g; (b) an anode comprising an anode current collector alone or a combination of an anode current collector and an anode active material; (c) a porous separator disposed between the anode and the cathode; (d) electrolyte in ionic contact with the anode and the cathode; and (e) a magnesium ion source disposed in the anode to obtain an open circuit voltage (OCV) from 0.5 volts to 3.5 volts when the cell is made.Type: ApplicationFiled: May 14, 2012Publication date: November 14, 2013Inventors: Yanbo Wang, Aruna Zhamu, Bor Z. Jang
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Patent number: 8580104Abstract: An electrode for electrochemical analysis is described, the electrode comprising: an insulating surface; a three-dimensional network of carbon nanotubes situated on the insulating surface; and an electrically conducting material in electrical contact with the carbon nanotubes; wherein the carbon nanotubes are oriented substantially parallel to the insulating surface. Also described is a method of manufacturing the electrode, and a method of electrochemically analysing a solution using electrodes of this type, and an associated assay device or kit.Type: GrantFiled: December 11, 2009Date of Patent: November 12, 2013Assignee: University of WarwickInventors: Patrick Unwin, Julie Macpherson, Ioana Dumitrescu, Jonathan P. Edgeworth
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Publication number: 20130284023Abstract: This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.Type: ApplicationFiled: June 14, 2013Publication date: October 31, 2013Inventors: Timothy V. Ratto, Jason K. Holt, Alan W. Szmodis
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Publication number: 20130288039Abstract: A transparent conductive laminate includes a conductive multilayer and a corrosion-resistant film. The corrosion-resistant film is essentially consisting of waterborne polyurethane and a plurality of carbon nanotubes dispersed therein, free of corrosion inhibitor. The corrosion-resistant film not only can protect the conductive multilayer, but also keep the surface resistance of the transparent conductive laminate. Further, the chromatism of the conductive multilayer is improved accordingly.Type: ApplicationFiled: September 11, 2012Publication date: October 31, 2013Applicant: FAR EASTERN NEW CENTURY CORPORATIONInventors: Chien-Cheng Chang, Yu-Chun Chien, Da-Shan Lin, Han-Hsiang Lin
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Publication number: 20130280660Abstract: A method of patterning a nonmetal conductive layer on a circuit board is provided. A nonmetal conductive layer and a negative photoresist layer are sequentially formed on a substrate of a circuit board. Then, the negative photoresist layer is exposed through a patterned photomask and then developed by a developing solution. Next, the nonmetal conductive layer is etched. The remained photoresist layer is finally removed by a non-alkaline stripper solution to obtain a patterned nonmetal layer on the substrate.Type: ApplicationFiled: August 22, 2012Publication date: October 24, 2013Applicant: FAR EASTERN NEW CENTURY CORPORATIONInventors: Chien-Cheng CHANG, Yu-Chun CHIEN, Da-Shan LIN, Han-Hsiang LIN
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Publication number: 20130281012Abstract: Communication to or from a nanodevice is provided with a nanostructure-based antenna, preferably formed from, but not limited to, a single wall nanotube (SWNT). Other nanostructure-based antennas include double walled nanotubes, semiconducting nanowires, metal nanowires and the like. The use of a nanostructure-based antenna eliminates the need to provide a physical communicative connection to the nanodevice, while at the same time allowing communication between the nanodevice and other nanodevices or outside systems, i.e., systems larger than nanoscale such as those formed from semiconductor fabrication processes such as CMOS, GaAs, bipolar processes and the like.Type: ApplicationFiled: October 2, 2012Publication date: October 24, 2013Inventor: Peter J. Burke
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Patent number: 8562905Abstract: In one aspect, the present invention provides a method of forming a film of nanocomposites of carbon nanotubes (CNTs) and platinum (Pt) nanoparticles. In one embodiment, the method includes the steps of (a) providing a first solution that contains a plurality of CNTs, (b) providing a second solution that contains a plurality of Pt nanoparticles, (c) combining the first solution and the second solution to form a third solution, and (d) filtering the third solution through a nanoporous membrane using vacuum filtration to obtain a film of nanocomposites of CNTs and Pt nanoparticles.Type: GrantFiled: September 8, 2010Date of Patent: October 22, 2013Assignee: Northwestern UniversityInventors: Mark C. Hersam, Gordana Ostojic, Yu Teng Liang
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Patent number: 8552381Abstract: An infrared (IR) scene projector device includes a light emitter and a thermal emitter. The light emitter is configured to selectably provide visible light. The thermal emitter includes a vertically aligned carbon nanotube (VACN) array. The VACN array includes a plurality of carbon nanotubes disposed proximate to a thermally conductive substrate, such that a longitudinal axis of the carbon nanotubes extends substantially perpendicular to a surface of the substrate. The thermal emitter absorbs the visible light from the light emitter and converts the visible light from the light emitter into IR radiation.Type: GrantFiled: July 5, 2012Date of Patent: October 8, 2013Assignee: The Johns Hopkins UniversityInventors: Raul Fainchtein, David M. Brown, Christopher C. Davis
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Publication number: 20130261001Abstract: Methods and apparatuses are disclosed for incorporating a plurality of independently rotating rotors made from high-strength materials with a high-temperature superconductive (HTS) bearing technology into an open-core flywheel architecture to achieve a desired high energy density in the flywheel energy storage devices and to obtain superior results and performance.Type: ApplicationFiled: April 3, 2012Publication date: October 3, 2013Applicant: THE BOEING COMPANYInventors: John R. Hull, Michael Strasik, John A. Mittleider, Mark S. Wilenski, Michael P. Kozar
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Publication number: 20130248772Abstract: Provided is a secondary battery which has improved high-rate discharge characteristic and cycle life characteristic and an improved binding strength of an active material. The secondary battery includes an electrode having an active material, a conductive agent and a binder. The conductive agent includes a first carbon nano conductive agent having a first diameter, and a second carbon nano conductive agent having a second diameter greater than the first diameter.Type: ApplicationFiled: July 31, 2012Publication date: September 26, 2013Applicant: SAMSUNG SDI CO., LTD.Inventor: Hyunuk Jo
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Patent number: 8542540Abstract: Embodiments of tunneling barriers and methods for same can embed modules exhibiting a monodispersion characteristic into a dielectric layer (e.g., between first and second layers forming a dielectric layer). In one embodiment, by embedding C60 molecules inbetween first and second insulating layers forming a dielectric layer, a field sensitive tunneling barrier can be implemented. In one embodiment, the tunneling barrier can be between a floating gate and a channel in a semiconductor structure. In one embodiment, a tunneling film can be used in nonvolatile memory applications where C60 provides accessible energy levels to prompt resonant tunneling through the dielectric layer upon voltage application.Type: GrantFiled: March 26, 2010Date of Patent: September 24, 2013Assignee: Cornell UniversityInventors: Edwin C. Kan, Tuo-Hung Hou
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Patent number: 8540542Abstract: The present invention, in one embodiment, provides a method of forming an organic electric device that includes providing a plurality of carbon nanostructures; and dispersing the plurality of carbon nanostructures in a polymeric matrix to provide a polymeric composite, wherein when the plurality of carbon nanostructures are present at a first concentration an interface of the plurality of carbon nanostructures and the polymeric matrix is characterized by charge transport when an external energy is applied, and when the plurality of carbon nanostructures are present at a second concentration the interface of the plurality of carbon nanostructures and the polymeric matrix are characterized by exciton dissociation when an external energy is applied, wherein the first concentration is less than the second concentration.Type: GrantFiled: April 8, 2011Date of Patent: September 24, 2013Assignees: UT-Battelle, LLC, University of Tennessee Research FoundationInventors: David Bruce Geohegan, Ilia N. Ivanov, Alexander A. Puretzky, Stephen Jesse, Bin Hu, Matthew Garrett, Bin Zhao
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Patent number: 8536324Abstract: Functionalized Single Wall Carbon Nanotube (SWCNT) complexed with nanochitosan for use in the delivery of bioaffecting substances and diagnostic applications. fSWCNT complexed with the chitosan NG042 were used for delivery of DNA-encoding EGFP reporter protein and peptide. The results demonstrate that shown CNT-chitosan hybrid nanoparticles exhibit significantly higher transfection efficiency in vivo than chitosan alone. Furthermore, the functionalized nanotubes were tested for peptide transfer into HEK293 cells. The results showed that the hybrid nanoparticles efficiently transferred peptides. Together, these results show that hybrid SWCNT-chitosan particles increase DNA and peptide transfer into cells.Type: GrantFiled: April 18, 2008Date of Patent: September 17, 2013Assignee: University of South FloridaInventors: Shyam S. Mohapatra, Arun Kumar
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Patent number: 8535635Abstract: A method of manufacturing carbon cylindrical structures, as represented by carbon nanotubes, by growing them on a substrate using a chemical vapor deposition (CVD) method, comprising the steps of implanting metal ions to the substrate surface and then growing the carbon cylindrical structures using the metal ions as a catalyst. A method of manufacturing carbon nanotubes comprising a step of using nano-carbon material as seed material for growing carbon nanotubes is also disclosed. A biopolymer detection device comprising vibration inducing part for inducing vibration, binding part capable of resonating with the vibration induced by the vibration inducing part and capable of binding or interacting with a target biopolymer, and detection part for detecting whether or not the binding part have bound or interacted with the target biopolymer, is also disclosed.Type: GrantFiled: June 19, 2009Date of Patent: September 17, 2013Assignee: Fujitsu LimitedInventors: Yuji Awano, Akio Kawabata, Shozo Fujita
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Patent number: 8535570Abstract: The present invention relates to a process for the preparation of a conductive polymer composition comprising the steps of A) providing a latex containing a conductive polymer; B) mixing the latex from A with either an aqueous latex of a polymer, or with (a) water-soluble precursor(s) of a polymer; C) removing water from the so obtained mixture; D) heating the product from step C) to a temperature at which the polymer added in step B flows or where the polymer introduced in step B is formed from out of its precursor(s); and E) processing and/or solidifying the product of step D) into a desired form, wherein the amount of conductive polymer is between 0.1 and 10 wt % relative to the total of the total of components in step A and B. In step A optionally carbon nanotubes (CNTs) in an aqueous medium are preferably added to the latex containing conductive polymer. In that case the conductive polymer may behave as a conductive polymeric surfactant for the CNTs dispersed in water.Type: GrantFiled: August 22, 2008Date of Patent: September 17, 2013Assignee: Stichting Dutch Polymer InstituteInventors: Marie Hermant, Lubertus Klumperman, Cornelis Koning, Paul Van Der Schoot
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Patent number: 8535499Abstract: Micromachined reference electrodes for use in miniaturized electrochemical sensors, and methods for fabricating such reference electrodes and electrochemical sensors, for example, as a part of a microfluidic system, are disclosed. Electrochemical measurements allow for inexpensive detection of a wide variety of (bio-)chemical compounds in solution. The reference electrode is one of the main parts of an electrochemical cell. The reference electrode, from which no current is drawn, has a stable, constant potential.Type: GrantFiled: February 9, 2011Date of Patent: September 17, 2013Assignee: Stichting IMEC NederlandInventors: Michiel Blauw, Javier Gonzalo Ruiz, Mercedes Crego Calama, Sywert H. Brongersma
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Patent number: 8529124Abstract: Methods for gas sensing with single-walled carbon nanotubes are described. The methods comprise biasing at least one carbon nanotube and exposing to a gas environment to detect variation in temperature as an electrical response.Type: GrantFiled: May 26, 2010Date of Patent: September 10, 2013Assignee: California Institute of TechnologyInventor: Anupama B. Kaul
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Publication number: 20130230464Abstract: An imaging probe can include a photoluminescent carbon nanostructure configured to emit a wavelength of light detectable through living tissue, and a targeting moiety including a first binding partner configured to interact with a second binding partner.Type: ApplicationFiled: January 31, 2013Publication date: September 5, 2013Inventors: Hyunjung Yi, Debadyuti Ghosh, Jifa Qi, Angela M. Belcher, Michael S. Strano
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Publication number: 20130224934Abstract: The present disclosure provides a nanotube solution being treated with a molecular additive, a nanotube film having enhanced adhesion property due to the treatment of the molecular additive, and methods for forming the nanotube solution and the nanotube film. The nanotube solution includes a liquid medium, nanotubes in the liquid medium, and a molecular additive in the liquid medium, wherein the molecular additive includes molecules that provide source elements for forming a group IV oxide within the nanotube solution. The molecular additive can introduce silicon (Si) and/or germanium (Ge) in the liquid medium, such that nominal silicon and/or germanium concentrations of the nanotube solution ranges from about 5 ppm to about 60 ppm.Type: ApplicationFiled: March 9, 2012Publication date: August 29, 2013Applicant: NANTERO INC.Inventors: David A. ROBERTS, Rahul SEN, Peter SITES, J. Thomas KOCAB, Billy Smith, Feng GU
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Publication number: 20130221285Abstract: Disclosed is a hybrid polymer composite for electromagnetic wave shielding, and a method for fabricating the same. Specifically, the hybrid polymer composite may be fabricated by combining a microcapsule that is surface coated with at least one carbon nanotube and includes a phase change material (PCM), whose phase easily transitions from solid to liquid upon exposure to heat, with at least one carbon fiber and a matrix polymer. The disclosed hybrid polymer composite has enhanced electromagnetic wave shielding properties that result, in part, from the ability of the PCM to dissipate and remove heat generated by electromagnetic absorption. Additionally, the disclosed composite has excellent conductivity due to its polymer properties and the formation of a network between fillers and the polymer.Type: ApplicationFiled: May 1, 2012Publication date: August 29, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Kyong Hwa SONG, Han Saem LEE, Jin Woo KWAK, Byung Sam CHOI
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Patent number: 8518870Abstract: The present invention is a method for detecting and destroying cancer tumors. The method is based on the concept of associating a linking protein or linking peptide such as, but not limited to, annexin V or other annexins to carbon nanotubes such as single-walled carbon nanotubes (SWNTs) to form a protein-CNT complex. Said linking protein or peptide can selectively bind to cancerous cells, especially tumor vasculature endothelial cells, rather than to healthy ones by binding to cancer-specific external receptors such as anionic phospholipids including phosphatidylserine expressed on the outer surfaces of cancer cells only. Irradiation of bound CNTs with one or more specific electromagnetic wavelengths is then used to detect and destroy those cells to which the CNTs are bound via the linking protein or peptide thereby destroying the tumor or cancer cells and preferably an immunostimulant is provided to the patient to enhance the immune response against antigens released from the tumor or cancer cells.Type: GrantFiled: November 13, 2009Date of Patent: August 27, 2013Assignee: The Board of Regents of the University of OklahomaInventors: Roger G. Harrison, Jr., Daniel E. Resasco, Luis Filipe Ferreira Neves
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Patent number: 8519489Abstract: An embodiment relates a method comprising creating a reversible change in an electrical property by adsorption of a gas by a composition, wherein the composition comprises a noble metal-containing nanoparticle and a single walled carbon nanotube. Another embodiment relates to a method comprising forming a composition comprising a noble metal-containing nanoparticle and a single walled carbon nanotube and forming a device containing the said composition. Yet another method relates to a device comprising a composition comprising a noble metal-containing nanoparticle and a single walled carbon nanotube on a silicon wafer, wherein the composition exhibits a reversible change in an electrical property by adsorption of a gas by the composition.Type: GrantFiled: December 15, 2009Date of Patent: August 27, 2013Assignee: Indian Institute of Technology MadrasInventors: Pradeep Thalappil, Chandramouli Subramaniam
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Patent number: 8512533Abstract: A biosensor includes a plurality of electrodes and a receptor. The plurality of electrodes comprises a plurality of carbon nanotubes. The receptor are located between the plurality of electrodes and electrically connected to the plurality of carbon nanotubes of the plurality of electrodes. In addition, the receptor reacts to a measured object to lead current variation which is transmitted by the plurality of electrodes.Type: GrantFiled: January 18, 2011Date of Patent: August 20, 2013Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Xue-Shen Wang, Qun-Qing Li, Shou-Shan Fan
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Publication number: 20130200309Abstract: The present disclosure relates to a nanocomposite material containing carbon nanotube coated glass fiber and graphite, in which fiber-shaped conductive particles obtained by coating a glass fiber with carbon nanotube as a conductive material with a good electromagnetic wave shielding property are hybridized with graphite sheets having a nanometer thickness and having an excellent heat conductivity, thereby creating a nanocomposite material with excellent electromagnetic wave shielding and heat dissipation properties. The nanocomposite material may be applied to a wide variety of electronics fields requiring both electromagnetic wave shielding and heat dissipation property, such as automotive electronic component housings, components of an electric car, mobile phones, and display devices.Type: ApplicationFiled: April 11, 2012Publication date: August 8, 2013Applicant: Hyundai Motor CompanyInventors: Kyong Hwa SONG, Jin Woo KWAK, Byung Sam CHOI
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Publication number: 20130200296Abstract: The present disclosure relates to a polymer nanocomposite including a metal-carbon nanotube coated glass fiber and graphite, in which a metal-carbon nanotube coated glass fiber serving as an electromagnetic wave shielding material is hybridized with graphite having an excellent heat conductivity, thereby improving the electromagnetic wave shielding performance in a low frequency range. The polymer nancomposite according to the disclosure is broadly applicable to a variety of fields requiring electromagnetic wave shielding performance such as, for example, various electronic component housings for a vehicle, components of an electric vehicle, a mobile phone, and a display device, and a method of preparing the polymer nanocomposite.Type: ApplicationFiled: April 10, 2012Publication date: August 8, 2013Applicant: HYUNDAI MOTOR COMPANYInventors: Kyong Hwa Song, Byung Sam Choi
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Publication number: 20130203917Abstract: A polymer masterbatch in latex form having nanomaterials and a compatibilized silica for incorporation into natural and synthetic polymers in latex form using precipitated or fumed silica with at least two organosilicon coupling compounds attached to the silica in an aqueous suspension.Type: ApplicationFiled: August 24, 2012Publication date: August 8, 2013Applicant: LION COPOLYMER, LLCInventors: Lawrence Douglas Harris, Mark Arigo, Subir Debnath, Jorge Soto
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Publication number: 20130202519Abstract: A method for dispersing carbon nanotubes, wherein the nanotubes are contacted with an electronic liquid wherein the ratio to metal atoms in the electronic liquid to carbon atoms in the carbon nanotubes is controlled and a solution of carbon nanotubes obtainable by such a method is described.Type: ApplicationFiled: April 7, 2011Publication date: August 8, 2013Applicants: Imperial Innovations Ltd., UCI Business PLCInventors: Christopher Howard, Neal Skipper, Milo Shaffer
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Publication number: 20130202865Abstract: The disclosure provides an electromagnetic shielding composite material, and a method for manufacturing the same. The electromagnetic shielding composite material includes: a polymer sheet; and an acicular carbon nanotube layer including acicular portions of carbon nanotubes fixed on the polymer sheet. The method for manufacturing the electromagnetic shielding composite material includes: preparing a carbon nanotube dispersion solution; applying the carbon nanotube dispersion solution to the surface of a polymer sheet; and drying the polymer sheet to which the carbon nanotube dispersion solution is applied and then forming an acicular structure of carbon nanotubes on the polymer sheet. The composite material has superb electromagnetic wave shielding properties suitable for a variety of electronics applications.Type: ApplicationFiled: May 1, 2012Publication date: August 8, 2013Applicant: Hyundai Motor CompanyInventors: Byung Sam Choi, Kyong Hwa Song, Han Saem Lee, Jin Woo Kwak
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Patent number: 8502195Abstract: Systems, methods and devices for the efficient photocurrent generation in single- or multi-walled carbon nanotubes, which includes (SWNTs)/poly [3-hexylthiophene-2,5-diyl] (P3HT) hybrid photovoltaics, and exhibit the following features: photocurrent measurement at individual SWNT/P3HT heterojunctions indicate that both semiconducting (s-) and metallic (m-) SWNTs function as excellent hole acceptors; electrical transport and gate voltage dependent photocurrent indicate that P3HT p-dopes both s-SWNT and m-SWNT, and exciton dissociation is driven by a built-in voltage at the heterojunction. Some embodiments include a mm2 scale SWNT/P3HT bilayer hybrid photovoltaics using horizontally aligned SWNT arrays, which exhibit greater than 90% effective external quantum efficiency, among other things, which advantageously provide carbon nanomaterial based low cost and high efficiency hybrid photovoltaics.Type: GrantFiled: July 11, 2011Date of Patent: August 6, 2013Assignee: The Regents of the University of MichiganInventors: Nanditha Dissanayake, Zhaohui Zhong