Single-walled Patents (Class 977/750)
  • Patent number: 9006667
    Abstract: A material may include a medium and carbon nanotubes dispersed in the medium. Fluorescent moieties may be attached to functional groups on a first quantity of the carbon nanotubes. The fluorescent moieties may be in a concentration in the material sufficient to make the material fluoresce in the presence of radiation. The fluorescent moieties may have an emission wavelength that is in or below the visible spectrum. The carbon nanotubes may be dispersed in the medium in a concentration sufficient to make the material electrically conductive at or above the material's electrical percolation threshold. Any suitable product may include the material. Methods for verifying the authenticity of the product may include detecting emissive radiation, testing electrical conductivity, and determining the presence of a structural characteristic of the carbon nanotubes.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: April 14, 2015
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Jason T. Wertz
  • Patent number: 8987150
    Abstract: A fabric for use in chemical and biological (CB) protective garments includes at least one felt layer having from 25% to 100% carbon nanotube (CNT) fibers as a breathable physical barrier against toxic chemical droplets and/or pathogens. The felt layers are cleaned and consolidated into a mechanically competent sheet which can form adhesive seams having lapshear greater than the sheet itself. An additional supporting layer can be included. The supporting layer can be a wicking layer which is permeable with a chlorinated or otherwise chemically active solution to establish a reactive chemical barrier, the solution being dispensed on demand from a portable container. Embodiments include a second layer of CNT or of another backing fabric, sandwiching the wicking layer therebetween. Impermeable fluoropolymer seams can divide the fabric into a plurality of CNT/wicking cells. A layer of activated charcoal and/or halamine-forming hydantoin can be included for persistent reactive chemical protection.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: March 24, 2015
    Assignee: Warwick Mills Inc.
    Inventor: Charles A. Howland
  • Patent number: 8980137
    Abstract: A composite for providing electromagnetic shielding including a plurality of nanotubes; and a plurality of elongate metallic nanostructures.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: March 17, 2015
    Assignee: Nokia Corporation
    Inventors: Vladimir Alexsandrovich Ermolov, Markku Anttoni Oksanen, Khattiya Chalapat, Gheorghe Sorin Paraoanu
  • Patent number: 8974862
    Abstract: Disclosed herein is a method of manufacturing a composite carbon sheet, including the steps of: mixing 70 parts by weight of a first solution as a dispersant with 30 parts by weight of a second solution as a binder to prepare a third solution; mixing 80˜97 parts by weight of the third solution with 3˜20 parts by weight of any one selected from the group consisting of single-wall carbon nanotubes, double-wall carbon nanotubes, multi-wall carbon nanotubes, carbon nanofibers, carbon nanoparticles, graphene and fullerene to prepare a fourth solution; dispersing the fourth solution to prepare a mixed dispersion solution; and coating an expanded graphite sheet with the mixed dispersion solution. The method is advantageous in that the thermal conductivity of the composite carbon sheet manufactured by this method can be improved, the physical properties thereof can be enhanced, the exfoliation thereof can be prevented, and the tensile strength and tear strength thereof can be improved.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: March 10, 2015
    Inventor: Jong-Sam Yu
  • Patent number: 8968605
    Abstract: The present invention relates to a conductive polymer composition for a PTC element with decreased NTC characteristics, using carbon nanotubes, a PTC binder resin, and a cellulose-based or polyester-based resin for fixing the carbon nanotubes and the PTC binder, and to a PTC element, a circuit and a sheet heating element using the same.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: March 3, 2015
    Assignee: LG Hausys, Ltd.
    Inventors: Seong-Hoon Yue, Yong-Bae Jung, Min-Hee Lee, Won-Kook Kim, Dong-Joo Kwon
  • Patent number: 8951632
    Abstract: A composition includes a carbon nanotube (CNT)-infused carbon fiber material that includes a carbon fiber material of spoolable dimensions and carbon nanotubes (CNTs) infused to the carbon fiber material. The infused CNTs are uniform in length and uniform in distribution. The CNT infused carbon fiber material also includes a barrier coating conformally disposed about the carbon fiber material, while the CNTs are substantially free of the barrier coating. A continuous CNT infusion process includes: (a) functionalizing a carbon fiber material; (b) disposing a barrier coating on the functionalized carbon fiber material (c) disposing a carbon nanotube (CNT)-forming catalyst on the functionalized carbon fiber material; and (d) synthesizing carbon nanotubes, thereby forming a carbon nanotube-infused carbon fiber material.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: February 10, 2015
    Assignee: Applied NanoStructured Solutions, LLC
    Inventors: Tushar K. Shah, Slade H. Gardner, Mark R. Alberding, Harry C. Malecki
  • Patent number: 8951631
    Abstract: A composition includes a carbon nanotube (CNT)-infused metal fiber material which includes a metal fiber material of spoolable dimensions, a barrier coating conformally disposed about the metal fiber material, and carbon nanotubes (CNTs) infused to the metal fiber material. A continuous CNT infusion process includes: (a) disposing a barrier coating and a carbon nanotube (CNT)-forming catalyst on a surface of a metal fiber material of spoolable dimensions; and (b) synthesizing carbon nanotubes on the metal fiber material, thereby forming a carbon nanotube-infused metal fiber material.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: February 10, 2015
    Assignee: Applied NanoStructured Solutions, LLC
    Inventors: Tushar K. Shah, Slade H. Gardner, Mark R. Alberding, Harry C. Malecki
  • Patent number: 8951444
    Abstract: In a method for functionalizing a carbon nanotube surface, the nanotube surface is exposed to at least one vapor including at least one functionalization species that non-covalently bonds to the nanotube surface, providing chemically functional groups at the nanotube surface, producing a functionalized nanotube surface. A functionalized nanotube surface can be exposed to at least one vapor stabilization species that reacts with the functionalization layer to form a stabilization layer that stabilizes the functionalization layer against desorption from the nanotube surface while providing chemically functional groups at the nanotube surface, producing a stabilized nanotube surface. The stabilized nanotube surface can be exposed to at least one material layer precursor species that deposits a material layer on the stabilized nanotube surface.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: February 10, 2015
    Assignee: President and Fellows of Harvard College
    Inventors: Roy G. Gordon, Damon B. Farmer
  • Patent number: 8940190
    Abstract: A composite for providing electromagnetic shielding including a plurality of nanotubes; and a plurality of elongate metallic nanostructures.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: January 27, 2015
    Assignee: Nokia Corporation
    Inventors: Vladimir Alexsandrovich Ermolov, Markku Anttoni Oksanen, Khattiya Chalapat, Gheorghe Sorin Paraoanu
  • Patent number: 8936681
    Abstract: A method for making an epitaxial structure is provided. The method includes the following steps. A substrate is provided. The substrate has an epitaxial growth surface for growing epitaxial layer. A carbon nanotube layer is placed on the epitaxial growth surface. An epitaxial layer is epitaxially grown on the epitaxial growth surface. The carbon nanotube layer is removed. The carbon nanotube layer can be removed by heating.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: January 20, 2015
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Shou-Shan Fan
  • Patent number: 8920682
    Abstract: The disclosure generally relates to a dispersion of nanoparticles in a liquid medium. The liquid medium is suitably water-based and further includes an ionic liquid-based stabilizer in the liquid medium to stabilize the dispersion of nanoparticles therein. The stabilizer can be polymeric or monomeric and generally includes a moiety with at least one quaternary ammonium cation from a corresponding ionic liquid. The dispersion suitably can be formed by shearing or otherwise mixing a mixture/combination of its components. The dispersions can be used to form nanoparticle composite films upon drying or otherwise removing the liquid medium carrier, with the stabilizer providing a nanoparticle binder in the composite film. The films can be formed on essentially any desired substrate and can impart improved electrical conductivity and/or thermal conductivity properties to the substrate.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: December 30, 2014
    Assignee: Eastern Michigan University
    Inventor: John Texter
  • Patent number: 8916606
    Abstract: The present invention pertains to therapeutic compositions that comprise: (1) a nanovector, (2) an active agent; and (3) a targeting agent, wherein the active agent and the targeting agent are non-covalently associated with the nanovector. The present invention also pertains to methods of treating various conditions in a subject by utilizing the above-described therapeutic compositions. Methods of making the therapeutic compositions are also a subject matter the present invention.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: December 23, 2014
    Assignees: William Marsh Rice University, Board of Regents, The University of Texas System
    Inventors: James M. Tour, Jacob Berlin, Tam Pham, Jeffrey N. Myers, Daisuke Sano
  • Patent number: 8911859
    Abstract: A nanoporous network includes carbon nanotubes (CNTs) with the network having a pore size in a range from about 15 nm to about 35 nm. The nanoporous network can be coated, compressed, or any combination of these operations in the manufacture of various articles. A method of making a nanoporous network includes disposing a concentrated aqueous CNT solution in a mold, freezing the concentrated aqueous CNT solution, and subliming the frozen concentrated CNT solution in a vacuum chamber.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: December 16, 2014
    Assignee: Lockheed Martin Corporation
    Inventor: James M. Spatcher
  • Patent number: 8890123
    Abstract: A thin film transistor has a semiconducting layer comprising a polythiophene and carbon nanotubes. The semiconducting layer exhibits high mobility and high current on/off ratio.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co. Ltd.
    Inventor: Yiliang Wu
  • Patent number: 8882977
    Abstract: Glucose and ATP biosensors have important applications in diagnostics and research. Combining single-walled carbon nanotubes (SWCNTs) with Pt nanoparticles can significantly enhance the performance of electrochemical biosensors. This disclosure illustrates the use of single-stranded DNA (ssDNA) to modify SWCNTs to increase SWCNT solubility in water. Multiple embodiments with this configuration allows for exploration of new schemes of combining ssDNASWCNT and Pt black in aqueous media systems. These embodiments resulted in a nanocomposite with enhanced biosensor performance. The ssDNA-SWCNT/Pt black nanocomposite constructed by a layered scheme proved most effective in terms of biosensor activity. The key feature of this structure and method of use is the exploitation of ssDNASWCNTs as molecular templates for Pt black electrodeposition. Glucose and ATP microbiosensors fabricated utilizing this structure and method of use exhibited high sensitivity, wide linear range and low limit of detection.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 11, 2014
    Assignee: Purdue Research Foundation
    Inventors: D. Marshall Porterfield, Tae-Gon Cha, Jong Hyun Choi, Jonathan C. Claussen, Alfred R. Diggs, Jin Shi
  • Publication number: 20140330100
    Abstract: Carbon nanostructures may be protected and functionalized using a layer-by-layer method whereby functional groups on the carbon nanostructure surface may be further derivatized to incorporate additional functional moieties. Exemplary moieties include redox mediator molecules, crown ethers, catalysts, boric acids, carbohydrates, oligonucleotides, DNA or RNA aptamers, peptide aptamers, proteins such as enzymes and antibodies, quantum dots and nanoparticles, cells, cell organelles, or other cellular components. The density of functional groups or functional moieties on carbon nanostructure surfaces may also be controlled as well as the degree of surface hydrophilicity of the nanostructure.
    Type: Application
    Filed: September 10, 2012
    Publication date: November 6, 2014
    Applicant: NANOSELECT, INC.
    Inventors: Chunhong Li, David J. Ruggieri
  • Publication number: 20140318990
    Abstract: A system for measuring pH includes a substrate and a sensor medium on the substrate. The sensor medium includes at least one oxidized carbon nanostructure and optionally at least one composition immobilized on the at least one oxidized carbon nanostructure. The at least one composition has at least one property that depends on pH. The system further includes at least one measurement system to measure a property of the sensor medium.
    Type: Application
    Filed: July 11, 2012
    Publication date: October 30, 2014
    Inventor: Alexander Star
  • Patent number: 8865604
    Abstract: In one embodiment, a bulk carbon nanotube and metallic composite is provided. The bulk carbon nanotube and metallic composite includes a bulk carbon nanotube material layer including a plurality of carbon nanotubes, and a metal film applied across the bulk carbon nanotube material layer. The metal film penetrates into the interstices between individual carbon nanotubes to reduce an electrical resistance between the plurality of carbon nanotubes.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: October 21, 2014
    Assignee: The Boeing Company
    Inventor: James Antoni Wasynczuk
  • Publication number: 20140308203
    Abstract: Provided herein are methods for delivering a molecule in situ to a cell and for treating a cancer via the in situ delivery. The methods comprise contacting or administering to the cell, as two separate components, a morpholino oligonucleotide comprising a targeting moiety followed by a single wall nanotube construct comprising second morpholino oligonucleotides complementary to the first morpholino oligonucleotides and one or both of a therapeutic or diagnostic payload molecule linked to the single wall nanotube construct. Upon self-assembly of a single wall nanotube complex via hybridization of the first morpholino and second complementary morpholino oligonucleotides at the cell, the payload molecule is delivered. Also provided is the two component self-assembly single wall nanotube system and the single wall nanotube construct comprising the second component.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Inventors: David A. Scheinberg, Michael R. McDevitt, Carlos H. Villa, J. Justin Mulvey
  • Patent number: 8858909
    Abstract: There is provided a high-purity carbon nanotube, which can be produced with simple purification by causing graphite to be hardly contained in crude soot obtained immediately after being synthesized by arc-discharge, and a method for producing the same. Soot containing carbon nanotubes produced by arc-discharge using an anode which contains amorphous carbon as a main component is heated at a temperature of not lower than 350° C. to be burned and oxidized, immersed in an acid, heated at a temperature, which is not lower than the heating temperature in the previous burning and oxidation and which is not lower than 500° C., to be burned and oxidized, and immersed in an acid again.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 14, 2014
    Assignees: Dowa Holdings Co., Ltd., Tohoku University
    Inventors: Yoshinori Sato, Kazuyuki Tohji, Masaru Namura
  • Patent number: 8852733
    Abstract: The present disclosure relates to a fibrous veil and methods of making the same. The fibrous veil includes a base having a plurality of fibers, each of the plurality of fibers having an average diameter ranging from about 7,000 nm to about 9,000 nm. Graphite nano-platelets are attached to at least some of the plurality of fibers without a polymeric binder.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: October 7, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Choongyong Kwag, Chen-Shih Wang
  • Patent number: 8835126
    Abstract: Tritiated planar carbon forms and their production are provided. Methods are provided for the stoichiometrically controlled labeling of planar carbon forms capitalizing on normal flaws of carboxylic acids ubiquitously present in commercial preparations of these planar carbon forms. Alternative methods include generation of a metallated intermediate whereby a metal is substituted for hydrogen on the carbon backbone of a planar carbon form. The metalized intermediate is then reacted with a tritium donor to covalently label the planar carbon form. The tritiated planar carbon forms produced are useful, for example, for determination of a biological property or environmental fate of planar carbon forms.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: September 16, 2014
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventor: Crist N. Filer
  • Patent number: 8822078
    Abstract: The present invention relates to freestanding carbon nanotube paper comprising purified carbon nanotubes, where the purified carbon nanotubes form the freestanding carbon nanotube paper and carbon microparticles embedded in and/or present on a surface of the carbon nanotube paper. The invention also relates to a lithium ion battery, capacitor, supercapacitor, battery/capacitor, and fuel cell containing the freestanding carbon nanotube paper as an electrode. Also disclosed is a method of making a freestanding carbon nanotube paper. This method involves providing purified carbon nanotubes, contacting the purified carbon nanotubes with an organic solvent under conditions effective to form a dispersion comprising the purified carbon nanotubes. The dispersion is formed into a carbon nanotube paper and carbon microparticles are incorporated with the purified carbon nanotubes.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 2, 2014
    Assignee: Rochester Institute of Technology
    Inventors: Brian J. Landi, Ryne P. Raffaelle, Cory D. Cress
  • Patent number: 8808597
    Abstract: A precursor raw material for the PAN-based carbon fibers represented by Formula (I) is provided. In Formula (I), R is methyl, ethyl or propyl, x+z=0.5-20.0 mol %, z?0.5 mol %, y=99.5-80.0 mol % and x+y+z=100 mol %. The invention also provides a PAN-based oxidized fiber and a PAN-based carbon fiber prepared by the precursor raw material for the PAN-based carbon fibers.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: August 19, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Tun-Fun Way, Jiun-Jy Chen, Yu-Ting Chen, Kai-Jen Hsiao, Shu-Hui Cheng, Jong-Pyng Chen
  • Patent number: 8808580
    Abstract: The present invention relates to a composite of carbon nanotubes and of graphenes in agglomerated solid form comprising: a) carbon nanotubes, the content of which represents from 0.1% to 50% by weight, preferably from 10% to 40% by weight relative to the total weight of the composite; b) graphenes, the content of which represents from 0.1% to 20% by weight, preferably from 1% to 10% by weight relative to the total weight of the composite; and c) a polymer composition comprising at least one thermoplastic polymer and/or one elastomer. The present invention also relates to a process for preparing said composite, its use for the manufacture of a composite product, and also to the various applications of the composite product.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: August 19, 2014
    Assignee: Arkema France
    Inventors: Dominique Plee, Alexander Korzhenko
  • Patent number: 8802047
    Abstract: One-dimensional materials are prepared from an array of nanoparticles positioned in one or more recesses of a substrate, wherein the recesses and the positioned nanoparticles have a comparable diameter of the same order of magnitude such that one nanoparticle is positioned within each of the one or more recesses; wherein a depth of the one or more recesses is from 10 nm to 40 nm; and wherein a diameter of the one or more recesses is adjusted by conformal film deposition and is between one and two times the mean diameter of the nanoparticles, and wherein the nanoparticles have a mean diameter of from 1 nm to 50 nm, and wherein the nanoparticles are catalytic sites for the growth of the one-dimensional materials; wherein the one dimensional materials are non-aggregated and extend in a direction that is perpendicular or approximately perpendicular to the horizontal surface of the substrate.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: August 12, 2014
    Assignee: International Business Machines Corporation
    Inventors: Charles T. Black, Christopher B. Murray, Robert L. Sandstrom
  • Patent number: 8791222
    Abstract: This invention concerns a polymer coating composition for use as non-focal optical power limiting dye containing polymeric materials. This composition contains: (1) one or more Modified Polymers comprising a Polymer, such as a hyperbranched polymer family, especially HB-PCS, HB-PU, HB-PUSOX or PC with one or more of: a) reverse saturable dye (RSA), b) multi-photon absorption dye (MPA), c) an azo dye, or d) absorption dye, which dye is chemically bonded to the pendant groups of the Polymer (along its chain and/or termini) or which forms a part of the backbone of the Polymer; (2) carbon nanotubes (CNT) as optical power limiters (OPL); and (3) a self-focusing component.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: July 29, 2014
    Assignee: Oxazogen, Inc.
    Inventors: Abhijit Sarkar, Petar R. Dvornic, James P. Godschalx
  • Patent number: 8778487
    Abstract: A tape that can be used to detect cracks in a structure to which it is attached is disclosed herein. The tape includes a plurality of structural fibers. The tape also includes an electrically-insulating binder at least partially encapsulating the plurality of structural fibers. The tape also includes quantities of electrically conductive particles, each quantity of electrically conductive particles connected with one of the plurality of structural fibers.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: July 15, 2014
    Assignee: Rolls-Royce Corporation
    Inventor: Edward Claude Rice
  • Publication number: 20140174924
    Abstract: The invention relates to electrodes for electrochemical analysis comprising: —an insulating surface; —carbon nanotubes situated on the insulating surface at a density of at least 0.1 ?mCNT Um?2; and —an electrically conducting material in electrical contact with the carbon nanotubes; wherein the carbon nanotubes cover an area of no more than about 5.0% of the insulating surface. Methods of making such electrodes and assay devices or kits with such electrodes, are also provided.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Applicant: THE UNIVERSITY OF WARWICK
    Inventors: Julie Victoria Macpherson, Patrick Robert Unwin
  • Patent number: 8758716
    Abstract: An atmosphere of a carbon source comprising an oxygenic compound is brought into contact with a catalyst with heating to yield single-walled carbon nanotubes. The carbon source comprising an oxygenic compound preferably is an alcohol and/or ether. The catalyst preferably is a metal. The heating temperature is preferably 500 to 1,500° C. The single-walled carbon nanotubes thus obtained contain no foreign substances and have satisfactory quality with few defects.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: June 24, 2014
    Assignees: Toudai Tlo, Ltd., Toray Industries, Inc
    Inventors: Shigeo Maruyama, Masahito Yoshikawa
  • Patent number: 8753578
    Abstract: An apparatus for the large scale production of boron nitride nanotubes comprising; a pressure chamber containing; a continuously fed boron containing target; a source of thermal energy preferably a focused laser beam; a cooled condenser; a source of pressurized nitrogen gas; and a mechanism for extracting boron nitride nanotubes that are condensed on or in the area of the cooled condenser from the pressure chamber.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: June 17, 2014
    Assignees: Jefferson Science Associates, LLC, The United States of America as represented by the Administrator of NASA
    Inventors: Michael W. Smith, Kevin Jordan
  • Publication number: 20140158946
    Abstract: A semiconductor composition includes a semiconducting polymer containing a diketopyrrolopyrrole (DKPP) moiety and carbon nanotubes dispersed into the semiconducting polymer. An electronic device contains a semiconductor layer including a semiconductor composition having a semiconducting polymer including a diketopyrrolopyrrole (DKPP) moiety and carbon nanotubes dispersed into the semiconducting polymer. A semiconductor composition contains a semiconducting polymer including a diketopyrrolopyrrole (DKPP) moiety, a solvent selected from the group consisting of tetrachloroethane, dichlorobenzene, chlorobenzene, chlorotoluene, and a mixture thereof, and a carbon nanotube.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: XEROX CORPORATION
    Inventors: Yiliang WU, Anthony James WIGGLESWORTH, Ping LIU
  • Patent number: 8748873
    Abstract: A thin film transistor has a dual semiconducting layer comprising two semiconducting sublayers. The first sublayer comprises a polythiophene and carbon nanotubes. The second sublayer comprises the polythiophene and has no carbon nanotubes. Devices comprises the dual semiconducting layer exhibit high mobility.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: June 10, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yiliang Wu, Ping Liu, Nan-Xing Hu
  • Publication number: 20140139975
    Abstract: Multilayer carbon nanotube capacitors, and methods and printable compositions for manufacturing multilayer carbon nanotubes (CNTs) are disclosed. A first capacitor embodiment includes: a first conductor; a plurality of fixed CNTs in an ionic liquid, each fixed CNT comprising a magnetic catalyst nanoparticle coupled to a carbon nanotube and further coupled to the first conductor; and a first plurality of free CNTs dispersed and moveable in the ionic liquid. Another capacitor embodiment includes: a first conductor; a conductive nanomesh coupled to the first conductor; a first plurality of fixed CNTs in an ionic liquid and further coupled to the conductive nanomesh; and a plurality of free CNTs dispersed and moveable in the ionic liquid. Various methods of printing the CNTs and other structures, and methods of aligning and moving the CNTs using applied electric and magnetic fields, are also disclosed.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 22, 2014
    Applicant: NthDegree Technologies Worldwide Inc.
    Inventors: Mark David Lowenthal, William Johnstone Ray, Neil O. Shotton, Vera Nicholaevna Lockett, Theodore I. Kamins, Thomas William Clinton
  • Patent number: 8728359
    Abstract: 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: Grant
    Filed: December 16, 2013
    Date of Patent: May 20, 2014
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Changchun Zeng, Chuck Zhang, Ben Wang, Richard Liang, Chase Knight
  • Patent number: 8709305
    Abstract: This invention concerns a polymer coating material composition (PCM) comprising as components a Polymer Matrix, carbon nanotubes (CNT) as optical power limiters (OPL), and carbon-rich molecules. One aspect of the invention is where the Polymer Matrix is a hyperbranched polymer, such as a hyperbranched polycarbosiloxane polymer. Another aspect of the invention is where the CNT is a short multiwall carbon nanotube (sMWNT). A further aspect of the invention is where the carbon-rich molecules are triethoxysilyl anthracene derivatives. The composition wherein the ratio in weight percent of Polymer Matrix to CNT to carbon-rich molecule is from 94:3:3 to 99.8:0.1:0.1. The composition can further contain one or more of multi-photon absorbers (MPA) chromophores or reverse saturable absorbers (RSA) chromophores. These compositions can be used as: a) a film, b) a coating, c) a liquid, d) a solution, or e) a sandwiched film between two transparent substrates.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: April 29, 2014
    Assignee: Oxazogen, Inc.
    Inventor: Abhijit Sarkar
  • Patent number: 8709374
    Abstract: Disclosed herein is a scaled method for producing substantially aligned carbon nanotubes by depositing onto a continuously moving substrate, (1) a catalyst to initiate and maintain the growth of carbon nanotubes, and (2) a carbon-bearing precursor. Products made from the disclosed method, such as monolayers of substantially aligned carbon nanotubes, and methods of using them are also disclosed.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: April 29, 2014
    Assignee: Seldon Technologies, LLC
    Inventors: Christopher H. Cooper, Hai-Feng Zhang, Richard Czerw
  • Patent number: 8709307
    Abstract: This invention concerns a polymer coating material composition (PCM) comprising as components a polymer matrix, carbon nanotubes (CNT) as optical power limiters (OPL), and carbon rich molecules. One aspect of the invention is where the Polymer Matrix is a hyperbranched polymer, such as a hyperbranched polycarbosiloxane polymer. Another aspect of the invention is where the CNT is a short multiwall carbon nanotube (sMWNT). A further aspect of the invention is where the carbon-rich molecules are triethoxysilyl anthracene derivatives. The composition wherein the ratio in weight percent of Polymer Matrix to CNT to carbon-rich molecule is from 94:3:3 to 99.8:0.1:0.1. The composition can further contain one or more of multi-photon absorbers (MPA) chromophores or reverse saturable absorbers (RSA) chromophores. These compositions can be used as: a) a film, b) a coating, c) a liquid, d) a solution, or e) a sandwiched film between two transparent substrates.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 29, 2014
    Assignee: Oxazogen, Inc.
    Inventors: Abhijit Sarkar, George Rayfield
  • Publication number: 20140103330
    Abstract: A gas sensor operable at ambient conditions, the sensor includes functionalized feather-like tellurium (Te) nanostructures on single-walled carbon nanotube (SWNTs) networks.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 17, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Nosang V. MYUNG, Miluo Zhang
  • Publication number: 20140091032
    Abstract: This invention relates to heterogenous pore polymer nanotube membranes useful in filtration, such as reverse osmosis desalination, nanofiltration, ultrafiltration and gas separation.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Applicant: Nagare Membranes, LLC
    Inventors: Timothy V. Ratto, Jason K. Holt, Alan W. Szmodis
  • Patent number: 8685287
    Abstract: A method of making a mechanically robust, electrically conductive ultralow-density carbon nanotube-based aerogel, including the steps of dispersing nanotubes in an aqueous media or other media to form a suspension, adding reactants and catalyst to the suspension to create a reaction mixture, curing the reaction mixture to form a wet gel, drying the wet gel to produce a dry gel, and pyrolyzing the dry gel to produce the mechanically robust, electrically conductive ultralow-density carbon nanotube-based aerogel. The aerogel is mechanically robust, electrically conductive, and ultralow-density, and is made of a porous carbon material having 5 to 95% by weight carbon nanotubes and 5 to 95% carbon binder.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: April 1, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Marcus A. Worsley, Theodore F. Baumann, Joe H. Satcher, Jr.
  • Publication number: 20140080378
    Abstract: In one embodiment, a bulk carbon nanotube and metallic composite is provided. The bulk carbon nanotube and metallic composite includes a bulk carbon nanotube material layer including a plurality of carbon nanotubes, and a metal film applied across the bulk carbon nanotube material layer. The metal film penetrates into the interstices between individual carbon nanotubes to reduce an electrical resistance between the plurality of carbon nanotubes.
    Type: Application
    Filed: September 17, 2012
    Publication date: March 20, 2014
    Inventor: James Antoni Wasynczuk
  • Patent number: 8673436
    Abstract: The present invention relates to nanostructured material capable of storing hydrogen. The nanostructured material may be configured with a selected geometry to provide the capability to influence and increase the limiting or theoretical gravimetric storage level (GSL) of hydrogen for a given chemical composition.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: March 18, 2014
    Assignee: Southwest Research Institute
    Inventors: Michael A. Miller, Kent Edward Coulter, James H. Arps
  • Patent number: 8674134
    Abstract: Disclosed herein is a sequential functionalization methodology for the covalent modification of nanotubes with between one and four repeat units of a polymer. Covalent attachment of oligomer units to the surface of nanotubes results in oligomer units forming an organic sheath around the nanotubes, polymer-functionalized-nanotubes (P-NTs). P-NTs possess chemical functionality identical to that of the functionalizing polymer, and thus provide nanoscale scaffolds which may be readily dispersed within a monomer solution and participate in the polymerization reaction to form a polymer-nanotube/polymer composite. Formation of polymer in the presence of P-NTs leads to a uniform dispersion of nanotubes within the polymer matrix, in contrast to aggregated masses of nanotubes in the case of pristine-NTs.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: March 18, 2014
    Assignee: The Regents of the University of California
    Inventors: Alexander K. Zettl, Toby Sainsbury, Jean M. J. Fréchet
  • Publication number: 20140072505
    Abstract: 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: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Inventors: Antonio Fonseca, Danilo Vuono, Janos B.Nagy
  • Patent number: 8652391
    Abstract: 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: Grant
    Filed: August 23, 2006
    Date of Patent: February 18, 2014
    Assignee: Entegris, Inc.
    Inventor: Sanjiv M. Bhatt
  • Patent number: 8646175
    Abstract: 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: Grant
    Filed: June 29, 2010
    Date of Patent: February 11, 2014
    Assignee: Chimei Innolux Corporation
    Inventors: Jeah-Sheng Wu, Jia-Shyong Cheng, Chih-Han Chao
  • Publication number: 20140030183
    Abstract: 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: Application
    Filed: March 8, 2012
    Publication date: January 30, 2014
    Applicant: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Kenichiro Itami, Yasutomo Segawa, Hisanori Shinohara, Ryo Kitaura
  • Patent number: 8632633
    Abstract: 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: Grant
    Filed: August 25, 2010
    Date of Patent: January 21, 2014
    Assignee: Raytheon Company
    Inventors: Delmar L. Barker, Brian J. Zelinski, William R. Owens
  • Patent number: 8628692
    Abstract: 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: Grant
    Filed: May 25, 2012
    Date of Patent: January 14, 2014
    Assignee: Nantero Inc.
    Inventors: Rahul Sen, Ramesh Sivarajan, Thomas Rueckes, Brent M. Segal