FIELD: medicine.
SUBSTANCE: group of inventions refers to cationic purpurinimide and using the same as a photosensitiser (PS) for the photodynamic inactivation of bacterial biofilms. The group of inventions discloses cationic purpurinimide representing 133-N-(N-methylnicotinyl)purpurinimide methyl ester, and using the same in the form of the Cremofor dispersion for the photodynamic inactivation of bacterial biofilms. 
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EFFECT: cationic purpurinimide has high antibacterial activity and enables effectively exposing and treating pockets of an infection deeply infiltrated into tissues.
4 cl, 1 dwg, 3 ex
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