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. 2022 Nov 3;7:66. doi: 10.1038/s41536-022-00254-3

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a The chemical structure of PEGDA-EDT before and after oxidation. b The appearance of fibers in different nanofiber membranes after soaking in H₂O₂ was observed by SEM (Original low magnification: scale bar, 10 μm; original high magnification: scale bar, 2 μm). c In vitro cumulative drug release profile of PF, PGF, PPF, and PPGF in PBS with or without H₂O₂. d The real-time concentration of drug released from PF, PGF, PPF, or PPGF nanofiber membranes in PBS with or without H₂O₂.