Patent application number | Description | Published |
20080302759 | End functionalization of carbon nanotubes - Carbon nanotubes may be selectively opened and their exposed ends functionalized. Opposite ends of carbon nanotubes may be functionalized in different fashions to facilitate self-assembly and other applications. | 12-11-2008 |
20090075430 | THERMAL INTERMEDIATE APPARATUS, SYSTEMS, AND METHODS - Apparatus and system, as well as fabrication methods therefor, may include a thermal intermediate structure comprised of a plurality of carbon nanotubes some of which have organic moieties attached thereto to tether the nanotubes to at least one of a die and a heat sink. The organic moieties include thiol linkers and amide linkers. | 03-19-2009 |
20090169466 | Methods of producing carbon nanotubes using peptide or nucleic acid micropatterning - The methods, apparatus and systems disclosed herein concern ordered arrays of carbon nanotubes. In particular embodiments of the invention, the nanotube arrays are formed by a method comprising attaching catalyst nanoparticles | 07-02-2009 |
20090170725 | Methods of producing carbon nanotubes using peptide or nucleic acid micropatterning - The methods, apparatus and systems disclosed herein concern ordered arrays of carbon nanotubes. In particular embodiments of the invention, the nanotube arrays are formed by a method comprising attaching catalyst nanoparticles 140, 230 to polymer 120, 210 molecules, attaching the polymer 120, 210 molecules to a substrate, removing the polymer 120, 210 molecules and producing carbon nanotubes on the catalyst nanoparticles 140, 230. The polymer 120, 210 molecules can be attached to the substrate in ordered patterns, using self-assembly or molecular alignment techniques. The nanotube arrays can be attached to selected areas 110, 310 of the substrate. Within the selected areas 110, 310, the nanotubes are distributed non-randomly. Other embodiments disclosed herein concern apparatus that include ordered arrays of nanotubes attached to a substrate and systems that include ordered arrays of carbon nanotubes attached to a substrate, produced by the claimed methods. In certain embodiments, provided herein are methods for aligning a molecular wire, by ligating the molecular wire to a double stranded DNA molecule. | 07-02-2009 |
20100151454 | MICROFLUIDIC APPARATUS, SYSTEMS, AND METHODS FOR PERFORMING MOLECULAR REACTIONS - Disclosed herein are methods, apparatuses, and systems for performing nucleic acid sequencing reactions and molecular binding reactions in a microfluidic channel. The methods, apparatuses, and systems can include a restriction barrier to restrict movement of a particle to which a nucleic acid is attached. Furthermore, the methods, apparatuses, and systems can include hydrodynamic focusing of a delivery flow. In addition, the methods, apparatuses, and systems can reduce non-specific interaction with a surface of the microfluidic channel by providing a protective flow between the surface and a delivery flow. | 06-17-2010 |
20110086438 | BIOSENSOR UTILIZING A RESONATOR HAVING A FUNCTIONALIZED SURFACE - Systems and methods for detecting the presence of biomolecules in a sample using biosensors that incorporate resonators which have functionalized surfaces for reacting with target biomolecules. In one embodiment, a device includes a piezoelectric resonator having a functionalized surface configured to react with target molecules, thereby changing the mass and/or charge of the resonator which consequently changes the frequency response of the resonator. The resonator's frequency response after exposure to a sample is compared to a reference, such as the frequency response before exposure to the sample, a stored baseline frequency response or a control resonator's frequency response. | 04-14-2011 |
20110269299 | DIRECT CHEMICAL VAPOR DEPOSITION OF GRAPHENE ON DIELECTRIC SURFACES - A substrate is provided that has a metallic layer on a substrate surface of a substrate. A film made of a two dimensional (2-D) material, such as graphene, is deposited on a metallic surface of the metallic layer. The metallic layer is dewet and/or removed to provide the film on the substrate surface. | 11-03-2011 |
20120154983 | Method of Fabrication of Carbon Nanofibers on Nickel Foam - A method for forming a novel composite of carbon nanofibers grown on a nickel foam is described wherein the composite, when used in a capacitor exhibits superior change retention and discharge capacities. Once the composite material has been obtained, it may be formed into electrodes which can be used to form supercapacitors of large per area capacitances in the order of 1.2 F/cm | 06-21-2012 |
20120196384 | BIOSENSOR UTILIZING A RESONATOR HAVING A FUNCTIONALIZED SURFACE - Systems and methods for detecting the presence of biomolecules in a sample using biosensors that incorporate resonators which have functionalized surfaces for reacting with target biomolecules. In one embodiment, a device includes a piezoelectric resonator having a functionalized surface configured to react with target molecules, thereby changing the mass and/or charge of the resonator which consequently changes the frequency response of the resonator. The resonator's frequency response after exposure to a sample is compared to a reference, such as the frequency response before exposure to the sample, a stored baseline frequency response or a control resonator's frequency response. | 08-02-2012 |
20130330523 | GRAPHENE NANORIBBONS AND METHODS OF FABRICATION THEREOF - This disclosure provides systems, methods, and apparatus related to graphene nanoribbons. In one aspect, a device includes a substrate and a first graphene nanoribbon overlying the substrate. The first graphene nanoribbon is less than about 20 nanometers wide. | 12-12-2013 |
20140170483 | METHOD FOR THE PREPARATION OF GRAPHENE/SILICON MULTILAYER STRUCTURED ANODES FOR LITHIUM ION BATTERIES - Multilayer structures with alternating graphene and Si thin films were constructed by a repeated process of filtering liquid-phase exfoliated grapheme film and subsequent coating of amorphous Si film using plasma-enhanced chemical vapor deposition (PECVD) method. The multilayer-structure composite films, fabricated on copper current collectors, can be directly used as anodes for rechargeable lithium-ion batteries (LIBs) without the addition of polymer binders or conductive additives. Fabricated coin-type half cells based on the new anode materials easily achieved a capacity almost four times higher than the theoretical value of graphite even after 30 cycles. These cells also demonstrated improved capacity retention and enhanced rate capability during charge/discharge processes compared to those of pure Si film-based anodes. | 06-19-2014 |
20140234702 | GRAPHENE OXIDE AS A SULFUR IMMOBILIZER IN HIGH PERFORMANCE LITHIUM/SULFUR CELLS - The loss of sulfur cathode material as a result of polysulfide dissolution causes significant capacity fading in rechargeable lithium/sulfur cells. Embodiments of the invention use a chemical approach to immobilize sulfur and lithium polysulfides via the reactive functional groups on graphene oxide. This approach obtains a uniform and thin (˜tens of nanometers) sulfur coating on graphene oxide sheets by a chemical reaction-deposition strategy and a subsequent low temperature thermal treatment process. Strong interaction between graphene oxide and sulfur or polysulfides demonstrate lithium/sulfur cells with a high reversible capacity of 950-1400 mAh g | 08-21-2014 |