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. 2018 Nov 13;10(4):230. doi: 10.3390/pharmaceutics10040230

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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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SEM micrographs of (a) mPEG₄₄-PLGA₉-PPA₁₄ showing maze pattern, (b) mPEG₄₄-PLGA₉-PPA₁₄, (c) mPEG₄₄-PLGA₂₀-PPA₁₈ showing dendritic pattern and (d) mPEG₄₄-PLGA₂₀-PPA₁₈.