Fig. 2From: Gold nanoparticles stabilize peptide-drug-conjugates for sustained targeted drug delivery to cancer cellsAbility of peptides to internalize into A20 cells. P4, P6 and P8-FITC conjugates were incubated with A20 cells. After several washes and counterstaining with DAPI, the cells were viewed by confocal microscopy. The P6 conjugate did not penetrate into the cells unlike P4 and P8. The FITC marker localization is extra-nuclearBack to article page