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Imaging of NO by fluorescence microscopy using DAF-FM diacetate. At the indicated times, 6 and 24 h after CHT treatment, the cells were collected and stained for NO visualization. C: Control cells; cPTIO: 2-(4-Carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide); CHT: Chitosan.
