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. 2022 Dec 9;13(4):289. doi: 10.3390/jfb13040289

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© 2022 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 (https://creativecommons.org/licenses/by/4.0/).

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Coaxial electrospinning. (A) CS, CS1, and CS2 fiber membrane in vitro drug release curve (full range and first 4 h) (reprinted with permission from [188]. Copyright©2016, Elsevier B.V. All rights reserved). (B) ROX drug release curve: (a) 14 days and (b) 10 h (reprinted with permission from [192]). (C) (a) Formation mechanism of engineering SOS, (b) overview of biphasic release of typical drugs, (c) percentage of drug release curve vs. time, (d) time required to release a certain amount of the loaded drug from an EHDA product (reprinted with permission from [194]. Copyright©2021, Donghua University, Shanghai, China).