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1H NMR spectra of iRGD (A), TAT (B), Mal–PEG–PLGA (C), iRGD–PEG–PLGA (D), and TAT–PEG–PLGA (E). iRGD–PEG–PLGA, iRGD-modified PEG–PLGA; TAT–PEG–PLGA, TAT-modified PEG–PLGA.
Abbreviations: iRGD, internalizing arginine-glycine-aspartic acid; Mal–PEG–PLGA, maleimide-poly(ethylene glycol)-poly(lactic-co-glycolic acid); NMR, nuclear magnetic resonance; PEG, poly(ethylene glycol); PLGA, poly(lactic-co-glycolic acid); TAT, transactivated transcription.
