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Morphological characterization of a G4/ECO/pDNA N/N/P ratio 3/3/1 formulation. (a) 2D image from a tapping mode AFM scan. (b) Corresponding 3D image from the same tapping mode AFM scan. (c) TEM image of dry form G4/ECO/pDNA N/N/P ratio 3/3/1 particles.
