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. 2017 Jun 14;34(12):2517–2531. doi: 10.1007/s11095-017-2190-7

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© The Author(s) 2017

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Scheme 1 — (a) Structure of exemplar anionic PAMAM generation 1.5. Iterative branching of each generation is highlighted by concentric circles. (b) Molecular mass (Mw) and the number of surface functional groups for the PAMAM generations tested here.