Intracellular trafficking of T22-GFP-H6-FdU in CXCR4+ SW1417 cells by confocal microscopy after exposure at 1µM for 24 h. The green staining corresponds to GFP containing nanoconjugates and the red staining corresponds to plasma cell membranes stained with a red dye (CellMask™), whereas cell nucleus was stained in blue with hoescht. The insets show detail of the intracellular localization of nanostructured, fluorescent entities, in an isosurface representation within a three-dimensional volumetric x-y-z data field 