Abstract: An ink composition is provided. The composition includes a binder material and at least one narrow band emission phosphor being uniformly dispersed throughout the composition, wherein the narrow band emission phosphor has a D50 particle size from about 0.1 ?m to about 15 ?m and is selected from the group consisting of a green-emitting U6+-containing phosphor, a green-emitting Mn2+-containing phosphor, a red-emitting phosphor based on complex fluoride materials activated by Mn4+, and a mixture thereof. A device is also provided.

Abstract: Compositions comprising nanosized objects (i.e., nanoparticles) in which at least one observable marker, such as a radioisotope or fluorophore, is incorporated within the nanosized object. The nanosized objects include, for example, metal or semi-metal oxide (e.g., silica), quantum dot, noble metal, magnetic metal oxide, organic polymer, metal salt, and core-shell nanoparticles, wherein the label is incorporated within the nanoparticle or selectively in a metal oxide shell of a core-shell nanoparticle. Methods of preparing the volume-labeled nanoparticles are also described.

Abstract: A radiation-emitting polymer composition includes a polysiloxane polymer including tritium and a wavelength-shifter chemically bonded as a side chain to the polysiloxane polymer or chemically bonded as a side chain to a siloxane carrier dispersed within the polysiloxane polymer. The wavelength-shifter includes a plurality of cyclic chemical moieties and emits electromagnetic radiation in response to radiation emitted by the tritium.

Abstract: The invention relates to a printed document of value having at least one authenticity feature in the form of a luminescent substance based on doped host lattices. The host lattice has a strong crystal field and is doped with at least one chromophore with the electron configuration (3d)2.

Abstract: A light-emitting polymer composition includes a polysiloxane polymer having tritium that emits radiation and a wavelength-shifter chemically bonded to the polysiloxane polymer or a siloxane carrier dispersed within the polysiloxane polymer. The wavelength-shifter emits light in response to the radiation.

Abstract: Neutron scintillating materials are provided, including boron substitution scintillation materials, boron and Li substitution scintillation materials, and Gd-based substitution scintillation materials.

Abstract: Compositions comprising nanosized objects (i.e., nanoparticles) in which at least one observable marker, such as a radioisotope or fluorophore, is incorporated within the nanosized object. The nanosized objects include, for example, metal or semi-metal oxide (e.g., silica), quantum dot, noble metal, magnetic metal oxide, organic polymer, metal salt, and core-shell nanoparticles, wherein the label is incorporated within the nanoparticle or selectively in a metal oxide shell of a core-shell nanoparticle. Methods of preparing the volume-labeled nanoparticles are also described.

Abstract: Neutron scintillating materials are provided, including boron substitution scintillation materials, boron and Li substitution scintillation materials, and Gd-based substitution scintillation materials.

Abstract: A light-emitting polymer composition includes a polysiloxane polymer having tritium that emits radiation and a wavelength-shifter chemically bonded to the polysiloxane polymer or a siloxane carrier dispersed within the polysiloxane polymer. The wavelength-shifter emits light in response to the radiation.

Abstract: The invention is directed to a liquid scintillating composition containing (i) one or more non-polar organic solvents; (ii) (lithium-6)-containing nanoparticles having a size of up to 10 nm and surface-capped by hydrophobic molecules; and (iii) one or more fluorophores. The invention is also directed to a liquid scintillator containing the above composition.

Abstract: Systems and methods for calibrating a nuclear medicine (NM) imaging system are provided that include an NM calibration source. The NM calibration source includes an isotope source having an energy spectrum with at least one energy peak and a fluorescence layer adjacent the isotope source creating at least one additional energy peak in the energy spectrum.

Abstract: The present invention relates generally to synthesis of radioactive material, such as a tritiated polymer, and an apparatus for generating electrical current from the nuclear decay process of a radioactive material. In one embodiment, the invention relates to an energy cell (e.g., a battery) for generating electrical current derived from particle emissions occurring within a radioactive material such as a tritiated polymer) on pore walls of a porous semiconductor. The radioactive material may be introduced into the energy cell by a wetting process.

Abstract: Solid-state scintillating compositions for detecting neutrons comprise a Li4Zn(PO4)2 host lattice. Methods of making scintillating compositions comprise: dissolving a lithium-6 precursor and a zinc precursor in a solvent to form a solution; combining phosphoric acid with the solution; combining a base with the solution to form a precipitate; and heating the precipitate to form a Li4Zn(PO4)2 host lattice.

Abstract: Composite scintillator material consisting of a binderless sintered mixture of a Lithium (Li) compound containing 6Li as the neutron converter and Y2SiO5:Ce as the scintillation phosphor, and the use of this material as a method for neutron detection. Other embodiments of the invention include various other Li compounds.

Abstract: An adhesive containing a far infrared radiation ceramic powder emitting far infrared rays and a radiation source ceramic powder emitting radiations and anions. The radiation source ceramic powder includes silicon dioxide, aluminum oxide, iron oxide, titanium oxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide and zirconium and/or radium. The adhesive according to the present invention relaxes human beings, helps spontaneous recovery from diseases and improves health by the synergistic effects of far infrared rays, anions and radiations.

Abstract: The present invention relates to the use of nanoscintillation systems, or nanoparticles containing fluor molecules, that can be used to detect an electron-emitting or alpha-particle-emitting radioisotope in the absence of organic-solvents commonly used in organic-based liquid scintillation cocktails. The invention also relates to compositions and use of three oil-in-water microemulsion precursors that can be engineered rapidly, reproducibly, and cost-effectively to produce useful nanoparticles less than 100 nanometers.

Abstract: The present invention relates to the use of nanoscintillation systems, or nanoparticles containing fluor molecules, that can be used to detect an electron-emitting or alpha-particle-emitting radioisotope in the absence of organic-solvents commonly used in organic-based liquid scintillation cocktails. The invention also relates to compositions and use of three oil-in-water microemulsion precursors that can be engineered rapidly, reproducibly, and cost-effectively to produce useful nanoparticles less than 100 nanometers.

Abstract: Disclosed is a composition of matter comprising a tributyl phosphate complex of a group 3, lanthanide, actinide, or group 13 salt in an organic carrier and a method of making the complex. These materials are suitable for use in solid or liquid organic scintillators, as in x-ray absorption standards, x-ray fluorescence standards, and neutron detector calibration standards.

Abstract: The present invention relates to a compound based on an alkaline-earth metal, on sulphur and on aluminium, on gallium or indium, to its process of preparation and to its use as luminophore. The compound of the invention corresponds to the formula AB2S4, in which A represents an alkaline-earth metal and B aluminum, gallium, or indium and it is characterized in that it is provided in the form of a powder with a residual oxygen content of not more that 1.5% and composed of particles with a mean size of not more than 10 &mgr;m. This compound is obtained by a process which contains the following stages: a solution or a suspension comprising salts of the elements A and B is formed, the solution or the suspension is dried by atomization and the product obtained in the preceding stages is reacted with carbon disulphide or with a mixture of hydrogen sulphide and or carbon disulphide. The compound of the invention can be used as a luminophore, in particular in cathodoluminescence.

Abstract: The present invention relates to single and dual-reporter luminescence assays utilizing general and specific reagents to quench enzyme-mediated reactions. In one embodiment of the invention, a reagent is added to the assay which non-specifically quenches enzyme-mediated luminescent reactions. In another embodiment of the invention, a reagent is added to the assay which simultaneously quenches one enzyme-mediated luminescent reaction while activating another distinct enzyme-mediated luminescent reaction. An assay kit containing specific quench reagents, and the reagents themselves are also disclosed.

Abstract: The present invention provides for novel reagents whose fluorescence increases in the presence of particular proteases. The reagents comprise a characteristically folded peptide backbone each end of which is conjugated to a fluorophore. When the folded peptide is cleaved, as by digestion with a protease, the fluorophores provide a high intensity fluorescent signal at a visible wavelength. Because of their high fluorescence signal in the visible wavelengths, these protease indicators are particularly well suited for detection of protease activity in biological samples, in particular in frozen tissue sections. Thus this invention also provides for methods of detecting protease activity in situ in frozen sections.

Abstract: Novel compounds obtainable by reacting together an imido-reagent such as diphenylphosphonimido-triphenylphosphorane), or a phosphine oxide such as p-tolyldiphenylphosphine oxide, with a chelate of a transition or lanthanide or actinide metal, such as tris(dibenzoylmethide)europium III, have the property of fluorescing in UV radiation. The invention includes solid polymer bodies containing such compounds, or chelates of transition or lanthanide or actinide metals generally, the bodies having the property of emitting light or infra-red radiation when subjected to a flux of ultra-violet or ionising radiation by virtue of internally generated, e.g. by tritium ionising radiation. The body is preferably of polystyrene formed by polymerising the monomer in the presence of the compound or metal chelate.

Abstract: Additives are proposed for compositions comprising radiolabelled organic compounds e.g. 32P-labelled nucleotides. Stabilisers are selected from tryptophan, para-aminobenzoate, indoleacetate and the azole group. Dyes are selected from Sulphorhodamine B, Xylene Cyanol, Azocarmine B and New Coccine. Preferred compositions contain both stabiliser and dye.

Abstract: Novel compounds obtainable by reacting together an imido-reagent such as diphenylphosphonimidotriphenylphosphorane) with a chelate of a transition or lanthanide or actinide metal, such as tris(dibenzoylmethide) europium III, has the property of fluorescing in UV radiation. The invention includes solid polymer bodies containing such compounds, or chelates of transition or lanthanide or actinide metals generally, the bodies having the property of emitting light by virtue of internally generated, e.g. by tritium ionising radiation. The body is preferably of polystyrene formed by polymerising the monomer in the presence of the compound or metal chelate.

Abstract: The invention relates to a composition for the volumetric generation of radiation. The composition comprises a porous substrate loaded with a component capable of emitting radiation upon interaction with an exciting radiation. Preferably, the composition is an aerogel substrate loaded with a component, e.g., a phosphor, capable of interacting with exciting radiation of a first energy, e.g., ultraviolet light, to produce radiation of a second energy, e.g., visible light.

Abstract: The invention provides a process for loading an aerogel substrate with tritium and the resultant compositions. According to the process, an aerogel substrate is hydrolyzed so that surface OH groups are formed. The hydrolyzed aerogel is then subjected to tritium exchange employing, for example, a tritium-containing gas, whereby tritium atoms replace H atoms of surface OH groups. OH and/or CH groups of residual alcohol present in the aerogel may also undergo tritium exchange.

Abstract: The invention relates to a composition for the volumetric generation of radiation, wherein a first substance functions as a source of exciting radiation, and a second substance interacts with the exciting radiation to provide a second radiation. The compositions comprise a porous substrate which is loaded with: a source of exciting radiation, a component capable of emitting radiation upon interaction with the exciting radiation, or both. Preferably, the composition is an aerogel substrate loaded with both a source of exciting radiation, such as tritium, and a component capable of interacting with the exciting radiation, e.g., a phosphor, to produce radiation of a second energy.

Abstract: New and useful chromophores have been isolated from the reaction mixture of proteins exposed to reducing sugars in the presence of sulfite over time. The chromophores are believed to be intermediates in nonenzymatic polypeptide glycosylation. The measurement of this chromophore makes possible both qualitative and quantitative assessment of the presence of nonenzymatic browning. Diagnostic and test kits are also disclosed.

Abstract: The invention relates to a composition for the volumetric generation of radiation, wherein a first substance functions as a source of exciting radiation, and a second substance interacts with the exciting radiation to provide a second radiation. The compositions comprise a porous substrate which is loaded with: a source of exciting radiation, a component capable of emitting radiation upon interaction with the exciting radiation, or both. In the composition, a composite is formed from a carrier material and at least one of the source of the exciting radiation or the component which is capable of interacting with the exciting radiation. The composite is then employed for loading a porous substrate, preferably an aerogel substrate.

Abstract: A new type of RL light source consisting of a zeolite crystalline material, the intralattice spaces of which a tritiated compound and a luminophore are sorbed, and which material is optionally further dispersed in a refractive index-matched polymer matrix.

Abstract: The invention provides a process for loading an aerogel substrate with tritium and the resultant compositions. According to the process, an aerogel substrate is hydrolyzed so that surface OH groups are formed. The hydrolyzed aerogel is then subjected to tritium exchange employing, for example, a tritium-containing gas, whereby tritium atoms replace H atoms of surface OH groups. OH and/or CH groups of residual alcohol present in the aerogel may also undergo tritium exchange.

Abstract: Disclosed is an improved autoradiography enhancer composition and method of use. The enhancer composition uses an acid anhydride as a dehydration agent.

Abstract: A solid state radioluminescent composition for light source comprises an optically clear polymer organic matrix containing tritiated organic materials and dyes capable of "red" shifting primary scintillation emissions from the polymer matrix. The tritiated organic materials are made by reducing, with tritium, an unsaturated organic compound that prior to reduction contains olefinic or alkynylic bonds.

Abstract: A radioluminescent light source comprises a solid mixture of a phosphorescent substance and a tritiated polymer. The solid mixture forms a solid mass having length, width, and thickness dimensions, and is capable of self-support. In one aspect of the invention, the phosphorescent substance comprises solid phosphor particles supported or surrounded within a solid matix by a tritium containing polymer. The tritium containing polymer comprises a polymer backbone which is essentially void of tritium.

Abstract: Disclosed is an improved autoradiography enhancer composition and method of use. The enhancer composition uses an acid anhydride as a dehydration agent.

Abstract: The subject invention provides an autofluorography kit composition comprising (i) a first aqueous solution of a water soluble fluor having a formula selected from R--CO.sub.2 --X; R--SO.sub.3 --X; and R--NH.sub.3 --Y; where X and Y are any counterion capable of imparting water solubility, and R is a fluor molecule; and (ii) a second aqueous solution of a precipitator capable of precipitating the water soluble fluor in an electrophoresis gel matrix.

Abstract: A liquid, homogeneous mixture for use in the LSC (Liquid Scintillation Counting) analysis technique, comprising a scintillation liquid, a scintillator and a surfactant, wherein the surfactant includes one or more phosphoric acid esters having formula 1 and/or formula 2 of the sheet of formulae, in which R', R" and R'" represent an organic group, which phosphor acid esters are neutralized to a pH, at which the neutralization product comprises a mono- and/or diphosphate with an alkaline material having a pK.sub.a of at least 5, and in which of the organic phosphoric acid esters having formula 1, R" and R'" may be the same or different.

Abstract: A luminescent compound, comprising a phosphor group or groups and an alkylalkoxysilane, and a luminescent composition comprising such luminescent compound and a radioactive substance to provide a source of exciting radiation for the luminescent compound in the composition. The present invention further comprises a method for rendering siliceous surfaces luminescent comprising applying the compound or composition to the surface and reacting the compound or composition with water after the compound or composition has migrated into the surface to hydrolyze the compound or composition. The present invention further comprises a luminescent structure having a siliceous surface incorporating the products of the reaction between the surface, water and the compound or composition of the present invention.

Abstract: The present invention provides for a composition comprising an inorganic scintillator comprising a lanthanide-doped strontium barium mixed halide useful for detecting nuclear material.