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(A) Critical micelle concentration of PPG NPs. (B) Dynamic light scattering analysis of PPG NPs and PPG-cRGD NPs incubated in phosphate-buffered saline recorded at different time points. (C) UV-VIS spectra of PPG-IR-780 NPs and PPG-cRGD-IR-780 NPs depicting characteristic absorbance peak of IR-780.
