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US 12,042,547 B2Granted
Method for producing luminescent particles, luminescent particles, and bioimaging material
AssigneeKyulux, Inc.
InventorsYouichi Tsuchiya, Chihaya Adachi, Koudai Ikesue
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Abstract
Luminescent particles with a maximum diameter of less than 100 μm are produced by stirring an emulsion material, including a host material, an organic luminescent material containing no heavy metal element, a surfactant and water, under conditions that melt the host material, thereby forming an emulsion, and then cooling the emulsion. This method can provide luminescent particles which are highly safe and which exhibit high luminous efficiency in water.
Claims7
Luminescent particles with a maximum diameter of less than 100 μm, comprising:
- a glassy host material having a melting point;
- an organic luminescent material containing no heavy metal element and having the following structure:
- an assist dopant having the following structure:
- and
- distearoylphophatidyl ethanolamine-polyethylene glycol as a surfactant,
- wherein the host material is a compound having a structure in which a benzene ring or a biphenyl ring is substituted with a carbazolyl group, and
- wherein the luminescent particles are produced by stirring an emulsion material, including the host material, the organic luminescent material, the assist dopant, the surfactant and water, under conditions that melt the host material, thereby forming an emulsion;
- and then cooling the emulsion.
5 more elements
Dependencies are inferred from the claim text.