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Schematic representation of the synthetic monomers employed for liposomes formulation and surface decoration: monomeric (C18)2-KN3 (A), dimeric (C18)2-K2N3 (B), and tetrameric scaffolds (C18)2-K4N3 (C). Pra-P6.1 peptide derivative (D) and amphiphilic gadolinium complex (C18)2DTPA(Gd) (E).
