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. 2019 Mar 2;24(5):885. doi: 10.3390/molecules24050885

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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FE-TEM images of PPG-cRGD NPs (Ai,ii) and PPG-cRGD-IR-780 NPs (Aiii). (B) Hydrodynamic size of PPG-cRGD NPs analyzed by dynamic light scattering. (C) Zeta potential of PPG-cRGD NPs measured by Zeta sizer.