Fig. 6
From: 5-Aminolevulinic Acid-Squalene Nanoassemblies for Tumor Photodetection and Therapy: In Vitro Studies

Dose-response curves. Concentration-dependent PpIX accumulation in U87MG cells after 4 h (a) and 24 h (b) incubation with 5-ALA-SQ NAs (blue) and 5-ALA (green)