1results about How to "Large encoding capacity" patented technology

The application discloses a rare earth up-conversion red-green-blue fluorescent coding microsphere, adopts a modified olefin-norbornene copolymer as a matrix material, and adopts red, blue or green rare earth up-conversion luminescent nanocrystals as a fluorescent coding material. The application further discloses a preparation method of the rare earth up-conversion red-green-blue fluorescent coding microsphere. The modified olefin-norbornene copolymer is blended with the up-conversion luminescent nanocrystals to obtain a uniform blend, and the blend is hot-pressed into a rod-shaped core layer which is inserted into a cladding material to form a preform rod, and then the preform rod is hot-drawn into a fiber, and then heat treatment is carried out to obtain a polymer fluorescent microsphere with a coding function. The method can control the fluorescent type and intensity of the fluorescent coding microsphere and the particle size of the microsphere according to requirements, the preparation process is simple, the method is suitable for large-scale production, the fluorescent performance is stable, and the method can be used for detecting cells, proteins or other molecules in biological samples.