Up-converting reporters for biological and other assays using laser excitation techniques.

[Subject] Offer of the label etc. Which enable detection of the overly sharp cell which can be used per multiplex target detection and target discernment, a biological giant molecule, and other アナライト. [Solution means] Composite containing at least one fluorescence organic dyestuff molecule adhering to inorganic up convert 性燐. A fluorescence organic dyestuff molecule can be chosen from the group which consists of low ダミン, シアニン, a xanthene, an acridine, oxazine, porphyrin, and phthalocyanine. [Selection figure] Nothing