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. 2018 Sep 2;4(3):72. doi: 10.3390/gels4030072

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© 2018 by the author.

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/).

PMC Copyright notice

A generalized reaction scheme for oxo-ester-mediated native chemical ligation (OMNCL) used for crosslinking eight-armed PEG macromonomers to form a chemical hydrogel network. Image reproduced with permission from [53]. Copyright 2013 RSC.