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Ce6 accumulation in tumor tissue (A) and in the skin (B) after i.v. administration to mice with inoculated Lewis tumor in the form of free Ce6 and within phospholipid nanoparticles (Ce6–PC). (A) mass spectrometry study of the kinetics of Ce6 accumulation in the tumor tissue; (B) dynamics of alteration of Ce6 fluorescence in the skin of experimental animals. FI, fluorescence intensity. *P < 0.05 (n = 3); **P < 0.01 (n = 3).
