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PpIX fluorescence images obtained at 6 hours of incubation.
Notes: The ALA PLGA NP group (A) shows better PpIX localization than the 0.8% ALA group (B).
Abbreviations: PpIX, protoporphyrin IX; ALA, 5-aminolevulinic acid; PLGA, polylactic-co-glycolic acid; NP, nanoparticle.
