Abstract: The present invention relates to a fluorescent probe for flow cytometry that includes a carrier molecule and porphyrin bound to the carrier molecule and in which an excitation wavelength of the fluorescent probe for flow cytometry is in a range of 350 to 650 nm. The present invention also relates to a method for screening fluorescence-labeled cells using a flow cytometer that includes a step of fluorescently labeling cells with a fluorescent probe for flow cytometry and a step of screening fluorescence-labeled cells labeled with the fluorescent probe for flow cytometry using a flow cytometer, and in which the screening of the fluorescence-labeled cells using a flow cytometer is performed by irradiating the fluorescence-labeled cells with excitation light with a wavelength of 350 to 650 nm and detecting fluorescence.

Abstract: The present invention relates to a fluorescent probe including a carrier molecule, a fluorescent dye a bound to the carrier molecule, and a fluorescent dye b bound to the carrier molecule in which the excitation wavelengths of the fluorescent dyes a and b are different, and FRET does not occur between the fluorescent dyes a and b. The present invention also relates to a method for detecting fluorescence that includes a step of labeling target cells with the fluorescent probe, and a step of irradiating the target cells labeled with the fluorescent probe with excitation light and observing the fluorescence from the fluorescent probe.

Abstract: A method of manufacturing a magnetite-coated iron powder includes putting an iron powder into a reaction liquid containing iron pentacarbonyl and heating the same in an oxidizing atmosphere, or includes heating a reaction liquid containing iron pentacarbonyl in a reducing atmosphere thereby precipitating iron particles and heating the reaction liquid in which iron particles are precipitated in an oxidizing atmosphere and coating magnetite to the precipitate iron particles.

Abstract: A mixed proton-electron conducting ceramic is a metallic oxide having a perovskite type structure, includes at least one member selected from the group consisting of chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni) and ruthenium (Ru) in a range of from 0.01 or more to 0.8 or less when a molar-ratio sum of metals constituting the metallic oxide is taken as 2, and has proton conductivity and electron conductivity.

Abstract: A lead-free piezoelectric ceramic composition wherein a suitable amount of Cu is contained in a perovskite compound of a non-stoichiometric composition represented by a formula (KxA1-x)y(Nb1-zBz)O3, wherein “A” represents at least one of Na and Bi, while “B” represents at least one of Ta and Ti, and wherein 0<x?1, 0<y<1, and 0?z?1, so that by-products such as KaCubNbcOd and KaCubTacOd are produced as a result of reaction of (Nb1-zBz) with Cu in the process of calcination of a starting material, and the by-products restrict melting and abnormal grain growth of (KxNa1-x)(Nb1-zTaz) O3 during firing of a calcined body, thereby improving sinterability of the fired body, while restricting volatilization of alkali components and melting of KNbO3, thereby increasing the density and improving the piezoelectric properties of the fired body.

Abstract: A lead-free piezoelectric ceramic composition wherein a suitable amount of Cu is contained in a perovskite compound of a non-stoichiometric composition represented by a formula (KxA1−x)y(Nb1−zBz)O3, wherein “A” represents at least one of Na and Bi, while “B” represents at least one of Ta and Ti, and wherein 0<x≦1, 0<y<1, and 0≦z≦1, so that by-products such as KaCubNbcOd and KaCubTacOd are produced as a result of reaction of (Nb1−zBz) with Cu in the process of calcination of a starting material, and the by-products restrict melting and abnormal grain growth of (KxNa1-x)(Nb1−zTaz) O3 during firing of a calcined body, thereby improving sinterability of the fired body, while restricting volatilization of alkali components and melting of KNbO3, thereby increasing the density and improving the piezoelectric properties of the fired body.

Abstract: A lead-containing complex oxide containing substantially no alkali metal is produced under hydrothermal conditions in the absence of alkali metals using a Pb source which serves also as a mineralizer for precipitating the lead-containing complex oxide. Preferred Pb source acting as the mineralizer is lead oxide.