Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Patent
1994-09-13
1999-04-13
Ceperley, Mary E.
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
2523014S, 2523015, 2523016R, C09K 1108, C09K 1154, C09K 1155, C09K 1177
Patent
active
058939997
ABSTRACT:
A specific binding material labeled with an ultrafine inorganic phosphor 1 to 100 nm in particle size is disclosed The composition of the ultrafine inorganic phosphor is one of Ln.sub.2 O.sub.3 :Re, Ln.sub.2 O.sub.2 S:Re, ZnO, CaWO.sub.4, MO.xAl.sub.2 O.sub.3 :Eu, Zn.sub.2 SiO.sub.4 :Mn, and LaPO.sub.4 :Ce,Tb, wherein Ln represents at least one element selected from La, Gd, Lu, and Y, Re represents at least one element selected from lanthanide elements, M represents at least one element selected from alkali earth metals, and x represents a value from 0.5 to 15. This ultrafine inorganic phosphor is prepared by one of the following processes a process of evaporation in a gas including an RF thermal plasma process, dc plasma thermal spraying, sputtering, glass crystallization, a sol-gel process, precipitation including hydrothermal synthesis, and a spraying process. An antibody which reacts specifically with an antigen to be measured is labeled with this ultrafine inorganic phosphor and reacted with a specimen, and the unreacted material is removed. The antibody bound to the specimen is detected by quantitatively observing fluorescence emitted by the phosphor.
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Albessard Keiko
Koike Hirotami
Matsuda Naotoshi
Okumura Miwa
Tamatani Masaaki
Ceperley Mary E.
Kabushiki Kaisha Toshiba
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