Fig. 3From: Distribution of PLGA-modified nanoparticles in 3D cell culture models of hypo-vascularized tumor tissueNP distribution through hanging drop (HD) spheroids in mid-plane cross-sections (top three rows) and 3D composite (bottom three rows) confocal images. Nuclei are blue (Hoechst) and NPs are green (Coumarin 6). Scale bar: 50 μmBack to article page