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. 2015 Feb 6;16(2):3626–3655. doi: 10.3390/ijms16023626

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© 2015 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 license (http://creativecommons.org/licenses/by/4.0/).

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(a) QAS modified hyper-branched polyester, adapted from [93]; (b) QAS-modified poly(amidoamine) dendrimers with NO-releasing function, adapted with permission from [95]; (c) QAS-modified poly(propylene imine) dendrimers, adapted with permission from [97].