Abstract: Magnetorheological materials having a supramolecular polymer gel as a component of the carrier are disclosed. Useful supramolecular polymers for gels include those having bipyridine or terpyridine ligands which can participate in metal coordination bonding. The magnetizable particles of magnetorheological materials can have supramolecular surfactant-polymer coatings.

Abstract: A method for the formation of surface enhanced Raman scattering substrates. The method produces thin substrates that have a nanoparticle ink deposited thereon. The nanoparticle ink may be any suitable nanoparticle ink such as silver, gold or copper nanoparticle ink which includes stabilized nanoparticles. The substrates and nanoparticle ink undergo a first step of heating in order to remove liquid vehicle from the ink. The substrates and nanoparticles then undergo a second step of heating for an amount of time sufficient to remove a substantial portion of the stabilizer and provide a fractal aggregate nanoparticle layer on the substrate having a certain resistivity or conductivity suitable for Raman scattering. This creates SERS substrates with enhanced amplification properties.

Abstract: Disclosed herein are core-shell type nanoparticles comprising nanoparticle cores made of a metal or semiconductor, and shells made of crystalline metal oxide formed on the surfaces of the nanoparticle cores, as well as a preparation method thereof. According to the disclosed invention, the core-shell nanoparticles, consisting of metallic or semiconductor cores and crystalline metal oxide shells, can be prepared by epitaxially growing metal oxide on the surfaces of the metallic or semiconductor nanoparticle cores. By virtue of the crystalline metal oxide shells, the core nanoparticle made of metal or semiconductor can ensure excellent chemical and mechanical stability, and the core-shell nanoparticles can show new properties resulting from the interaction between the metal cores and the metal oxide crystal shells.

Abstract: A method of making encapsulated chromonic nanoparticles includes exposing crosslinked chromonic nanoparticles to an acid selected from the group consisting of carbonic acid, phosphoric acid, lactic acid, citric acid, boric acid, sulfuric acid, and mixtures thereof in the presence of water to encapsulate the crosslinked nanoparticles in a shell comprising a complex comprising the chromonic material, the multivalent cations, and the acid anions.

Abstract: A method for producing fine, coated metal particles comprising the steps of mixing Ti-containing powder except for Ti oxide powder with oxide powder of a metal M, an M oxide having a standard free energy of formation meeting the relation of ?GM-O>?GTiO2; and heat-treating the resultant mixed powder at a temperature of 650-900° C. in a non-oxidizing atmosphere, thereby reducing the oxide of the metal M with Ti to provide the resultant fine particles of the metal M with TiO2-based titanium oxide coating.

Abstract: Disclosed herein are methods and processes for making FeRh/FePt nanostructures and the use of these FeRh—FePt nanostructures as a magnetic recording media.

Abstract: In a process of forming a capped crystal structure, a precursor solution is heated. The solution comprises a mixture of zinc (Zn) precursor, selenium (Se) precursor, precursor for a dopant, glutathione (GSH), and water. The dopant comprises a transition metal (M). The molar ratio of Zn:Se in the solution may be about 10:3 to about 10:5. The solution is heated for a first period sufficient to allow Zn(M)Se crystal core to form. After the first period of heating, more zinc precursor and GSH are added to the heated solution, and the solution is heated for a second period sufficient to form ZnS crystal shell on the Zn(M)Se crystal core. GSH is added in a sufficient amount to form a GSH layer around the Zn(M)Se/ZnS quantum dot.

Abstract: The present invention provides a method for producing a powder mixture for powder metallurgy, which allows production of a green compact having both high density and high lubricity (low demolding force). The method, according to the present invention, for producing a powder mixture for powder metallurgy including an iron-base powder, a mechanical characteristic-improving powder and a lubricant, the method includes the steps of: mixing the iron-base powder and/or the mechanical characteristic-improving powder with an amide-based lubricant solution; removing a solvent in the solution; and coating the surface of the iron-base powder and/or the mechanical characteristic-improving powder with an amide-based lubricant.

Abstract: Mixed matrix membranes that are capable of separation and purification of gas mixtures are disclosed. These membranes comprise polymers that include dispersed therein nanomolecular sieve particles. In a preferred embodiment, the nanomolecular sieve particles contain attached functional groups to prevent their agglomeration.

Abstract: A reaction in which a surface-treating material for providing a semiconductor nanoparticle with one or more kinds of electron-releasing groups is added and in which the electron-releasing groups are arranged on the surface of the semiconductor nanoparticle is accelerated by irradiating the semiconductor nanoparticle with light during surface modification, thereby reducing the reaction time.

Abstract: Provided is a silver micropowder coated with a protective material and capable of more drastically reducing the sintering temperature than before. The silver micropowder comprises silver particles processed to adsorb hexylamine (C6H13—NH2) on the surfaces thereof and having a mean particle diameter DTEM of from 3 to 20 nm or an X-ray crystal particle diameter DX of from 1 to 20 nm. The silver micropowder has the property of forming a conductive film having a specific resistivity of not more than 25 ??·cm when it is mixed with an organic medium to prepare a silver coating material and when a coating film formed of it is fired in air at 120° C. Even when fired at 100° C., it may form a conductive film having a specific resistivity of not more than 25 ??·cm.

Abstract: A supporting method for supporting a metal particle including at least two elements on a surface of a plurality of granular supports in a decompression device, the supporting method supporting the metal particle whose particle diameter being smaller than a grain size of the granular support comprises holding the plurality of granular supports in a container and rotating a stirring device and/or the container, a stirring period in which the relative position among the plurality of granular supports are changed and a non-stirring period in which the relative position among the plurality of granular supports are not changed being altered by the rotating, wherein the decompression device comprises, an evaporation source for evaporating elements to form an alloy particle, the container for holding the plurality of granular supports in the decompression device so that a relative position among granular supports is able to be changed, a rotating device for rotating the container and the stirring device disposed in t

Abstract: The invention relates to effect pigments having an aluminum core or aluminum alloy core and an aluminum oxide-containing or aluminum oxide/hydroxide-containing layer enveloping said aluminum core or aluminum alloy core, obtained by chemical wet-process oxidation of lamellar aluminum pigments or aluminum alloy pigments, the content of metallic aluminum in the aluminum core or aluminum alloy core being not more than 90% by weight, based on the total weight of the pigment, wherein the oxidized aluminum pigments or aluminum alloy pigments exhibit at least one highly refractive metal chalcogenide layer having a refractive index of >1.95, and a mixed layer is formed between the highly refractive metal chalcogenide layer and the enveloping aluminum oxide-containing or aluminum oxide/hydroxide-containing layer. The invention further relates to a process for the production of such effect pigments and to the use thereof.

Abstract: Provided is a method for producing a silver fine powder covered with an organic substance, which comprises a step of mixing (i) a dispersion of silver particles covered with a protective material X1 that comprises an organic compound having an unsaturated bond and having a molecular weight of from 150 to 1000 in a liquid organic medium A, (ii) a protective material X2 that comprises an organic compound of which the number of the carbon atoms constituting the carbon skeleton is smaller than that of the organic compound to constitute the protective material X1, and (iii) a liquid organic medium B of which the ability to dissolve the protective material X1 therein is higher than that of the liquid organic medium A, thereby promoting the dissolution of the protective material X1 in the liquid organic medium B and the adhesion of the protective material X2 to the surface of the silver particles.

Abstract: There is provided an aluminum pigment including an aluminum particle having a film formed on a surface thereof, wherein the film contains a metallic amine salt and the metallic amine salt is represented by the compositional formula RmHnN+?O—M(?O)2—OH (wherein M represents a metal element, R represents a hydrocarbon chain optionally having a substituent, m represents an integer of 1 or more, and n represents an integer satisfying n=4?m).

Abstract: A process of repairing a plasma etched low-k dielectric material having surface-bound silanol groups includes exposing at least one surface of the dielectric material to (a) a catalyst so as to form hydrogen bonds between the catalyst and the surface-bound silanol groups obtaining a catalytic intermediary that reacts with the silane capping agent so as to form surface-bound silane compounds, or (b) a solution comprising a supercritical solvent, a catalyst, and a silane capping agent so as to form hydrogen bonds between a catalyst and the surface-bound silanol groups obtaining a catalytic intermediary that reacts with the silane capping agent so as to form surface-bound silane compounds. Horizontal networks can be formed between adjacent surface-bound silane compounds.

Abstract: The present invention provides an Ag or Ni conductive powder, which can show the high conductivity even in condition that a resin is included and can has the narrow particle size distribution, and a conductive composition using the same, and a producing method of the same. In such an Ag or Ni conductive powder, a conductive composition and a producing method of the conductive powder, the conductive powder having a convex radially extended and a concave, wherein a core material which is at least one particle selected from the group consisting of an organic type particle, a metal type particle and a ceramic type particle is included into the conductive powder.

Abstract: The present invention relates to gold nanocages containing magnetic nanoparticles and a preparation method thereof. More specifically, relates to hollow-type gold nanocage particles, which contain iron oxide nanoparticles having a magnetic property and have an optical property of strongly absorbing or scattering light in the near-infrared (NIR) region, as well as a preparation method thereof. Due to their optical property and magnetic property, the magnetic nanoparticle-containing gold nanocages can be used in various applications, including analysis in a turbid medium with light, cancer therapy or biomolecular manipulation using light, contrast agents for magnetic resonance imaging, magnetic hyperthermia treatment and drug delivery guide, etc.

Abstract: Flowability-improving particles containing 50 to 100% by mass of carbon black are adhered to surfaces of iron powder through a binder to provide an iron-based powder for powder metallurgy which has excellent flowability and which is capable of uniformly filling a thin-walled cavity, compaction with high ejection force, and maintaining sufficient strength of a sintered body in subsequent sintering.

Abstract: This invention discloses a method of making an oxygen scavenging particle comprised of an activating component and an oxidizable component wherein one component is deposited upon the other component from a vapor phase and is particularly useful when the activating component is a protic solvent hydrolysable halogen compound and the oxygen scavenging particle is a reduced metal.

Abstract: Anchored nanostructure materials and methods for their fabrication are described. The anchored nanostructure materials may utilize nano-catalysts that are formed by mechanical ball milling of a metal powder. Nanostructures may be formed as anchored to the nano-catalyst by heating the nanocatalysts and then exposing the nano-catalysts to an organic vapor. The nanostructures are typically single wall or multi-wall carbon nanotubes.

Abstract: A nanoparticle powder of silver has an average particle diameter measured by TEM observation (DTEM) of 30 nm or less, an aspect ratio of less than 1.5, an X-ray crystallite size (Dx) of 30 nm or less, a degree of single crystal grain {(DTEM)/(Dx)} of 5.0 or less, and a CV value {100×standard deviation (?)/number average diameter (DTEM)} of less than 40%. The nanoparticle powder of silver has adhered to the particle surface thereof an organic protective agent having a molecular weight of 100 to 400. The nanoparticle powder is obtained by subjecting a silver salt to reduction treatment at a temperature of 85 to 150° C. in an alcohol having a boiling point of 85 to 150° C. and in the co-presence of an organic protective agent.

Abstract: A method for producing a surface-treated silver-containing powder comprises vacuum freeze drying a dispersion liquid, which is obtained by dispersing silver or silver compound particles (a) in a solvent together with a surfactant (b) of an alkylamine type or an alkylamine salt type, or a phosphate type having a phosphorus content of 0.5 to 10% by mass so that the surfactant (b) is adsorbed in the surface of the silver or silver compound particles (a), thereby producing a silver-containing powder (c) whose surface is treated with the surfactant (b). Moreover, a silver paste is produced by dispersing the surface-treated silver-containing powder (c) in a solvent, or in a solvent with a resin.

Abstract: Dumbbell-shaped or flower-shaped nanoparticles and a process of forming the same, wherein the process comprises forming a mixture of a nanoparticle with a precursor in a first solvent, wherein the nanoparticle comprises a hydrophobic outer coating; heating the mixture; cooling the mixture to room temperature; modifying the hydrophobic outer coating into a hydrophilic outer coating; precipitating a solid product from the mixture, and dispersing the product in a second solvent. The nanoparticles comprise any of a semiconducting, magnetic, and noble metallic material, wherein the nanoparticles comprise a first portion comprising any of PbSe, PbS, CdSe, CdS, ZnS, Au, Ag, Pd, and Pt, and wherein the precursor comprises any of a cationic, neutral or particulate Au, Ag, Pd, Pt, or transition metal (Fe, Co, Ni) precursors of Fe(CO)5, Co(CO)8, Ni(CO)4 or their analogues. The first and second solvents comprise any of alkanes, arenes, ethers, nitrites, ketones, and chlorinated hydrocarbons.

Abstract: A method of coating nanoparticles comprising subjecting nanoparticles, a coating precursor and one or more reagents to shear, wherein the coating precursor and the one or more reagents react to provide a coating on the nanoparticles.

Abstract: A nano-metal solution, nano-metal complex grains, and a manufacturing method of a metal film are provided. The nano-metal solution includes metal grains having an amount of 0.1˜30 wt %, metallic-organic self-decomposition molecules having an amount of 0.1˜50 wt % and having formula 1, and a solvent having an amount of 20˜99.8 wt %: wherein M represents a metal ion. The metallic-organic self-decomposition molecules and the metal grains are evenly mixed in the solvent, and the metallic-organic self-decomposition molecules are adsorbed on surfaces of the metal grains.

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.

Abstract: A pure iron powder of a diameter of 10 to 500 ?m and a purity of 99% by mass or more is heated to a temperature in the range of 600 to 1400° C., and a Si-concentrated layer is formed in regions within a depth of 5 ?m from the surfaces of the powder particles by gas-phase reaction at a temperature of that range. The average Si concentration in the regions within this depth is controlled in the range of 0.05% to 2% by mass. Thus, a dust core metal powder enhancing the adhesion of insulating material to the particle without degrading compressibility is produced. The resulting dust core maintains a high saturation magnetic flux density and exhibits a low iron loss.

Abstract: The present invention comprises novel “one-step” methods for the production of gold sol and gold sol conjugates. The methods disclosed herein produce gold sol and colloidal gold conjugates with product with yields on the order of about 20 ODs. Since current methods in the art yield conjugates at concentrations on the order of about 2 ODs, the present invention represents an approximately 10-fold increase in production over conventional methods. The novel method provided herein also does not result in the production of undesired aggregate by-products that, in conventional methods, must be removed via centrifugation, filtration or other means. The new method is therefore less labor intensive and requires less time to complete than standard methods in the art for synthesizing pure colloidal gold conjugates.

Abstract: In a method of forming a light emissive nanostructure, a quantum dot is provided and a crosslinked-glutathione layer around the quantum dot is formed. The light emissive nanostructure thus comprises a quantum dot and a crosslinked-glutathione layer around the quantum dot. In another method, a metal-based nanostructure is provided, and a crosslinked-glutathione layer coated on a surface of the metal-based nanostructure is formed. The metal-based nanostructure is thus coated with a crosslinked-glutathione layer. To promote crosslinking and stability, the glutathione layer may be crosslinked in the presence of an activating agent and sufficient amount of free glutathione.

Abstract: The anisotropically conductive adhesive composition according to the present invention is an anisotropically conductive adhesive composition to connect a first circuit member where a first circuit electrode is formed on the principal surface of a first substrate and a second circuit member where a second circuit electrode is formed on the principal surface of a second substrate with the first circuit electrode and the second circuit electrode placed opposite, wherein the anisotropically conductive adhesive composition comprises an adhesive and a coated particle where at least part of the surface of a conductive particle is coated with an insulating material containing a polymer electrolyte and an inorganic oxide fine particle.

Abstract: The present invention relates to ink jet printing ink consisting of an independently dispersed metal ultrafine particles-containing liquid dispersion in which the metal ultrafine particles having a particle size of not more than 100 nm are independently and uniformly dispersed and which is excellent in characteristic properties required for ink. The ink is used in the printing or the formation of conductive circuits using an ink jet printer.

Abstract: The present invention relates to a variety of conductive ink compositions comprising a metal complex compound having a special structure and an additive and a method for preparing the same, more particularly to conductive ink compositions comprising a metal complex compound obtained by reacting a metal or metal compound with an ammonium carbamate- or ammonium carbonate-based compound and an additive and a method for preparing the same.

Abstract: This invention discloses a method of making an oxygen scavenging particle comprised of an activating component and an oxidizable component wherein one component is deposited upon the other component from a vapour phase and is particularly useful when the activating component is a protic solvent hydrolysable halogen compound and the oxygen scavenging particle is a reduced metal.

Abstract: An coated particulate is provided with a graphite-impregnated resin coating. The oil field particulates may comprise any of gravel-pack sand, granular betonite, ground Gilsonite, calcium carbonate, glass beads, rock wool, shredded paper, metal spheres, ceramic beads, nut hulls, ground rubber, plastic beads, muscovite mica, calcined petroleum coke, and perlite. The resin may comprise as a binder one or more of a natural, synthetic, water-soluble, and organic resins. More specifically, the resins may comprise an organic film-forming resin such as an alkyd, polyurethane and epoxy. Alternatively, the resin may comprise a film-forming water-soluble polymer, such as a starch, carboxymethyl cellulose, hydroxyethyl cellulose, and xanthan gum. In a further alternative, the resin may comprise a resin-dispersed emulsion, such as a latex or acrylic.

Abstract: An ink for forming CIGS photovoltaic cell active layers is disclosed along with methods for making the ink, methods for making the active layers and a solar cell made with the active layer. The ink contains a mixture of nanoparticles of elements of groups IB, IIIA and (optionally) VIA. The particles are in a desired particle size range of between about 1 nm and about 500 nm in diameter, where a majority of the mass of the particles comprises particles ranging in size from no more than about 40% above or below an average particle size or, if the average particle size is less than about 5 nanometers, from no more than about 2 nanometers above or below the average particle size. The use of such ink avoids the need to expose the material to an H2Se gas during the construction of a photovoltaic cell and allows more uniform melting during film annealing, more uniform intermixing of nanoparticles, and allows higher quality absorber films to be formed.

Abstract: A method of manufacturing an electrode active material particle for a rechargeable battery wherein a layer of an active material capable of being alloyed with Li is formed on a surface of a metal particle incapable of being alloyed with Li and then a heat treatment is conducted to diffuse the active material into the metal particle so that the resulting active material particle has a concentration profile in which a concentration of a metal element of the metal particle decreases from an interior toward the surface.

Abstract: A rust inhibitor which ensures the simplicity of application typical for a coating process and can demonstrate excellent characteristics similar to those obtained with a metal spraying method. The rust inhibitor is manufactured by admixing zinc and aluminum as fine powders of inorganic metals, which are manufactured with a stamping mill to have a flaky shape, to a modified silicone resin solution. A silane-type silicone resin is used for the modified silicone resin solution. For example, a mixed solution of an organosilane-type silicone resin and an oligomer-type silane coupling agent and the like is used.

Abstract: This invention discloses a method of making an oxygen scavenging particle comprised of an activating component and an oxidizable component wherein one component is deposited upon the other component from a vapour phase and is particularly useful when the activating component is a protic solvent hydrolysable halogen compound and the oxygen scavenging particle is a reduced metal.

Abstract: The invention relates to metal pigments comprising a coating. The coating surrounds the metal pigments and comprises cross-linkable oligomer and/or polymer binding agent(s) which are chemically cross-linkable and/or active under the influence of heat, IR radiation, UV radiation and/or electron radiation. The coated metal pigments are embodied in the form of powder, which has a particle size d50 of less than 190 ?m, and are resistant to corrosion after hardening in a coating powder. The invention further relates to a coating composition, to a method for the production of the coated metal pigments, in addition to the use thereof.

Abstract: A reagent suitable for use as a catalyst comprises a first metal species substrate having a second reduced metal species coated thereon, the second reduced metal species being less electropositive than the first metal. Methods of manufacture are also provided.

Abstract: A core/shell particle which includes a core component that contains a metal, and a shell component that coats the core component, the shell component including a a hydrolysate and/or a partial condensate of a compound represented by the formula “(R)m—A(X)4-m”, wherein R represents a substituted or unsubstituted alkyl group or the like, A represents Si or Ti, X represents a hydroxyl group or the like, and m represents an integer of 1 to 3. Furthermore, a method of producing a core/shell particle is provided.

Abstract: A nanocrystal capable of light emission includes a nanoparticle having photoluminescence having quantum yields of greater than 30%.

Abstract: A process for the “in situ” manufacture, in a pressurized CO2 medium, of coated particles. The manufacturing process is characterized in that the steps of synthesising the particles and of coating these particles are coupled in such a way that the synthesised particles remain dispersed in a pressurized CO2 medium at least until the coating. The device comprises a reactor for synthesising particles in a pressurized CO2 medium; a means of injecting the coating material or precursor thereof into said reactor; a means of supplying said reactor with a pressurized CO2 medium; in which the means of injecting the coating material or precursor thereof is coupled to the synthesis reactor in such a way that the injection of the coating material or precursor thereof into said reactor does not destroy the dispersion of the particles, in a pressurized CO2 medium, in said reactor.

Abstract: The present invention is directed to different methods used in the formation of an ink, as well as being directed to the formation of layers used in the fabrication of a solar cell, particularly the absorber layer. In one embodiment, the invention is directed to formulating an ink comprising Cu-rich particles and solid Ga—In particles, wherein the step of formulating is carried out at a temperature such that no liquid phase is present within the solid Ga-In particles. In another embodiment, the specific steps taken during the formulation of the ink are described. In yet another embodiment, the process of using the formulated ink to obtain a precursor layer are described.

Abstract: Silane and/or organic titanate and/or organic zirconate coated, mill-dried ATH particles, methods of making them, their use in flame retarded polymer formulations, and molded or extruded articles made from the flame retarded polymer formulations.

Abstract: A method for producing composite, shelled, alloy and compound nanoparticles as well as nanostructured films of composite, shelled, alloy and compound nanoparticles by using laser ablation of microparticles is disclosed.

Abstract: A group of metal magnetic nanoparticles is provided. The metal magnetic nanoparticle includes a core having a noble metal cluster of a diameter of 3 nm or less; and a metal shell, formed to surround the core, having noble metal atoms randomly distributed therein; wherein the metal shell has a noble metal atom content: (number of noble metal atoms)/(number of whole metal atoms)×100 of 1 to 15 at. %.

Abstract: Disclosed is a method for the chemical modification of surfaces to form patterned nanoparticle arrays on the surfaces. Methods of producing arrays in predetermined patterns and electronic devices that incorporate such patterned arrays are also described.

Abstract: The compositions of different energetic metallic particles and corresponding coatings are chosen to take advantage of the resulting exothermic alloying reactions when the metals are combined or alloyed through heat activation. Bimetallic particles composed of a core/shell structure of differing metals are chosen such that, upon achieving the melt point for at least one of the metals, a relatively substantial amount of exothermic heat of alloying is liberated. In an embodiment, the core metal is aluminum and the shell metal is nickel. The nickel may be applied to the outer surface of the aluminum particles using an electroless process from a metal salt solution with a reducing agent in an aqueous solution or a solvent media. The aluminum particles may be pretreated with zinc to remove any aluminum oxide. The resulting bimetallic particles may be utilized as an enhanced blast additive by being dispersed within an explosive material.