RB-dextran 81-88-9 rhodamine b-labeled dextran rb-chitosan rhodamine modified chitosan
Rhodamine B is a dye with strong fluorescent properties that is commonly used for cell staining and labeling. Dextran is a polysaccharide with a special structure, which has excellent biocompatibility and biological activity, and is widely used in the biomedical field in the fields of drug carriers, tissue engineering, and biological separation.
Rhodamine B labeled dextran is prepared in a variety of ways, among which rhodamine B is attached to dextran by active esterification reaction or polycondensation reaction. These methods require the use of organic solvents, acid-base catalysts, etc., in the preparation process, and the synthesis conditions are harsh, and may affect the physiological activity of rhodamine B and dextran.
By covalently bonding rhodamine B to dextran, the labeled material with outstanding fluorescence performance and good stability can be prepared. It not only has excellent cell permeability and fluorescence performance, can realize real-time fluorescence tracking and observation of cells, but also has good biocompatibility and low toxicity, and can exist stably in organisms and exert medicinal effects.
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