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. 2018 Jun 28;10(3):77. doi: 10.3390/pharmaceutics10030077

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© 2018 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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UV-vis spectra of free IR820 (a–c) and Ac-PR/IR820 (d–f) dendrimers when stored at distinct conditions; (g) the photo of Ac-PR/IR820 dendrimers dispersed in kinds of solvents; (h) the retain efficiency of Ac-PR dendrimers for IR820.