Abstract: A mixed matrix membrane comprises a support structure. The support structure comprises a glassy polymer matrix, and nanodiamond particles dispersed within the glassy polymer matrix. A gas separation membrane apparatus, a gaseous fluid treatment system, and a method of forming a mixed matrix membrane are also described.

Abstract: A fuel additive composition has a base fuel; colloidal nanocarbon particles, and a dispersion stabilizer that aids in stably suspending the colloidal nanocarbon particles in the base fuel. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A fluorescent diamond particle, characterized by having a surface and a diamond lattice; the particle comprising a core and a region within approximately 3 nm of the surface of the particle enriched with fluorescent color centers, where the near surface enrichment with color centers is enriched by a treatment providing in-diffusion of external dopants, as compared to particles which have not undergone the treatment. The dopant is selected from the group consisting of a nitrogen atom, a group of nitrogen atoms, silicon, and a combination thereof.

Abstract: A fluorescent diamond particle, characterized by having a surface and a diamond lattice; the particle comprising a core and a region within approximately 3 nm of the surface of the particle enriched with fluorescent color centers, where the near surface enrichment with color centers is enriched by a treatment providing in-diffusion of external dopants, as compared to particles which have not undergone the treatment. The dopant is selected from the group consisting of a nitrogen atom, a group of nitrogen atoms, silicon, and a combination thereof.

Abstract: A method of processing diamond particles to form fluorescent color centers involves providing diamond particles containing at least one dopant; annealing the diamond particles in a vacuum or an inert atmosphere; creating vacancies in the annealed diamond particles by irradiating the diamond particles with high energy radiation; and while the annealed diamond particles are being irradiated, causing a temperature of the diamond particles to be at least a temperature at which vacancies in the diamond particles diffuse and combine with the at least one dopant to form fluorescent color centers. The procedure can be repeated at least twice. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A preparation provides light or radiation attenuation between about 190 and 800 nm has an amount of diamond nanoparticles in a medium, where the diamond nanoparticles have a size between about 1 nm and 1000 nm are modified to enhance absorption or photoluminescence. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A preparation provides light or radiation attenuation between about 190 and 800 nm has an amount of diamond nanoparticles in a medium, where the diamond nanoparticles have a size between about 1 nm and 1000 nm are modified to enhance absorption or photoluminescence. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: Nanodiamond material containing carbon, hydrogen, nitrogen and oxygen characterized by the absence of sp2 carbon phase based on X-ray photoelectron spectroscopy analysis and containing more than approximately 11 wt % of oxygen and demonstrating a pH approximately below 2.5 when dispersed in an amount of 10 wt % in deionized water. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: Nanodiamond material containing carbon, hydrogen, nitrogen and oxygen characterized by the absence of sp2 carbon phase based on X-ray photoelectron spectroscopy analysis and containing more than approximately 11 wt % of oxygen and demonstrating a pH approximately below 2.5 when dispersed in an amount of 10 wt % in deionized water. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.