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. 2020 Jul 29;14:3057–3068. doi: 10.2147/DDDT.S256636

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© 2020 Bao et al.

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RGD contained ligand was synthesized by conjugating cRGDfK with TOSD using PEG as a linker to obtain cRGDfK-PEG-TOSD. The chemical structures of cRGDfK-PEG-TOSD was confirmed ¹H NMR.