Abstract: A dispersion for an X-ray target in which gold nanoparticles and sodium alginate or a calcium phosphate-based bone reinforcing material are dispersed, in which the gold nanoparticles are in contact with the sodium alginate or the calcium phosphate-based bone reinforcing material.

Abstract: Disclosed is oxide-containing copper fine particles including Cu64O and optionally Cu2O and coated with a carboxylic acid, wherein a mass ratio of Cu64O to a total mass of Cu, Cu64O and Cu2O is 0.5 to 2.0% by mass.

Abstract: To provide novel low-temperature sinterable copper particles that can be sintered even at a low temperature of, for example, around 100° C. or less, and a method for producing a sintered body by using the same. The low-temperature sinterable copper particles according to the present invention are coated with a carboxylic acid, and a surface of the copper particle is oxidized so as to have a cuprous oxide fraction (Cu2O/(Cu+Cu2O)) in the copper particle of 4% by mass or less or so as to have an average coating thickness of cuprous oxide of 10 nm or less. The low-temperature sinterable copper particles are subjected to low-temperature firing in an atmosphere of 0.01 Pa or less.

Abstract: To provide novel low-temperature sinterable copper particles that can be sintered even at a low temperature of, for example, around 100° C. or less, and a method for producing a sintered body by using the same. The low-temperature sinterable copper particles according to the present invention are coated with a carboxylic acid, and a surface of the copper particle is oxidized so as to have a cuprous oxide fraction (Cu2O/(Cu+Cu2O)) in the copper particle of 4% by mass or less or so as to have an average coating thickness of cuprous oxide of 10 nm or less. The low-temperature sinterable copper particles are subjected to low-temperature firing in an atmosphere of 0.01 Pa or less.

Abstract: Disclosed herein is an anode material for constructing an anode of a rechargeable battery, particularly a sodium battery. The anode material comprises, a metal oxide composite having a spinel structure and a formula of AB2O4, wherein, A is selected from the group consisting of: zinc, cobalt, iron, nickel, magnesium, manganese, copper and cadmium; and B is selected from the group consisting of: vanadium, cobalt, iron, boron, aluminum, gallium, chromium, and manganese. Also provided herein is a sodium secondary battery including an anode formed from the anode material of the present disclosure that renders the sodium secondary battery a reduced an enhanced level of capacitance, and a long cycle life-time.

Abstract: The hydrogen storage material of the invention is a hydrogen storage material comprising metal fine particles with hydrogen storage capacity, and an organic compound that has at least two specific groups that can bind with the metal fine particles, and that is bonded with the metal fine particles by the specific groups.

Abstract: Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 ?m.

Abstract: Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 ?m.

Abstract: Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 ?m.

Abstract: The hydrogen storage material of the invention is a hydrogen storage material comprising metal fine particles with hydrogen storage capacity, and an organic compound that has at least two specific groups that can bind with the metal fine particles, and that is bonded with the metal fine particles by the specific groups.

Abstract: Used is a sample holder for MALDI mass spectrometry, which has a CuO secondary particle as a laser-beam-absorbing matrix and in which the secondary particle comprises an aggregate of CuO primary particles having an average particle diameter of 100 nm or smaller and has an uneven surface arising from the shape formed by the primary particles constituting the outermost surface of the secondary particle. As the CuO secondary particle, usable is one derived from a CuO powder produced by baking basic copper carbonate in air at 200 to 300° C., and the basic copper carbonate is produced in a process of mixing an aqueous ammonium hydrogencarbonate solution and an aqueous copper nitrate solution. The CuO secondary particle has an average particle diameter of, for example, from 0.3 to 10 ?m.