Abstract: The present invention relates to carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs. The carbon-based fluorescent nano-agents may be used in the analysis of the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and may be recovered from the reservoir for the determination of hydrocarbon flow rates and retention times.

Abstract: The present invention relates to carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs. The carbon-based fluorescent nano-agents may be used in the analysis of the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and may be recovered from the reservoir for the determination of hydrocarbon flow rates and retention times.

Abstract: The present invention relates to carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs. The carbon-based fluorescent nano-agents may be used in the analysis of the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and may be recovered from the reservoir for the determination of hydrocarbon flow rates and retention times.

Abstract: The present invention relates to carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs. The carbon-based fluorescent nano-agents may be used in the analysis of the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and may be recovered from the reservoir for the determination of hydrocarbon flow rates and retention times.

Abstract: Carbon-based fluorescent nano-agent tracers for analysis of oil reservoirs are provided. The carbon-based fluorescent nano-agents being inexpensive means of analyzing, among other properties, the porosity of a formation. The nanoagents are suitable for injection into a petroleum reservoir and can be subsequently recovered for determinations of flow rates and retention times.

Abstract: The invention provides a composition that is a dispersion made from a Group III nitride, a solvent system, and a dispersant. The dispersion can be used to prepare Group III nitride thin films on a wide range of substrates, for example, glass, silicon, silicon dioxide, silicon nitride, silicon carbide, aluminum nitride, sapphire, and organic polymers. The particle size of the Group III nitride used for producing the thin films can be controlled by adjusting centrifugation of the dispersion and selecting a desired layer of supernatant. The dispersant can be removed from the thin films by calcination. The Group III nitride can contain a dopant. Doped Group III nitride thin films can emit visible light upon irradiation. Green, red, and yellow light emissions result from irradiating erbium-, europium-, and cerium-doped gallium nitride, respectively.

Abstract: The invention provides a composition that is a dispersion made from a Group III nitride, a solvent system, and a dispersant. The dispersion can be used to prepare Group III nitride thin films on a wide range of substrates, for example, glass, silicon, silicon dioxide, silicon nitride, silicon carbide, aluminum nitride, sapphire, and organic polymers. The particle size of the Group III nitride used for producing the thin films can be controlled by adjusting centrifugation of the dispersion and selecting a desired layer of supernatant. The dispersant can be removed from the thin films by calcination. The Group III nitride can contain a dopant. Doped Group III nitride thin films can emit visible light upon irradiation. Green, red, and yellow light emissions result from irradiating erbium-, europium-, and cerium-doped gallium nitride, respectively.

Abstract: Compound containing at least 15% inorganic content demonstrates liquid-like behavior and is distinct in exhibiting liquid-like behavior in the absence of solvent. In one case it is quaternary ammonium derivative of a heteropolyacid. In another case, it is a salt formed by reaction of heteropolyacid and polyethylene glycol alkylamine. In other cases, it is condensation product of oxide and quaternary ammonium cation where the balancing anion has a molecular weight greater than 200. In still other cases it is a salt formed by reaction of sulfonated silica or sulfonated fullerene and polyethylene glycol alkylamine. In still other cases, it is a neutral organic-inorganic hybrid which is PEG-functionalized silica nanoparticle or is a layered-nanoparticle obtained by hydrolytic polymerization of organosilane in nonpolar solvent.

Abstract: Composite of high melting polymer and nanoclay converted so the balancing cation is quaterized copolymer of styrene and 2-(dimethylamine)ethyl methacrylate provides transparent form without coloration and enhanced modulus and strength without loss of elongation and toughness.

Abstract: Composite of high melting polymer and nanoclay converted so the balancing cation is quaternized copolymer of styrene and 2-(dimethylamine)ethyl methacrylate provides transparent form without coloration and enhanced modulus and strength without loss of elongation and toughness.