Research Article

Liposomal Tumor Targeting in Drug Delivery Utilizing MMP-2- and MMP-9-Binding Ligands

Figure 1

Chemical structure of 125I-CTT2-peptide. CTT2-peptide is a 17-amino acid peptide with a disulphide bridge between the two cysteines. The amino terminal end of the peptide is amidated to increase its stability. Upon iodination, peptide labeling occurs on the aromatic ring of the tyrosine amino acid.
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