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. 2021 Mar 16;12:1689. doi: 10.1038/s41467-021-21989-5

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© The Author(s) 2021, corrected publication 2024

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. 3 — a Variation in the particle size of different PVA-DOPA-Mucin mixtures as a function of time. PVA: poly(vinyl alcohol), DOPA: 3,4-dihydroxy-D-phenylalanine. n = 3 independent samples per group; *P = 0.025; **P < 0.01; ***P < 0.001 vs value at 0 h. b Variation in the zeta potential of different PVA-DOPA-Mucin mixtures as a function of time. n = 3 independent samples per group; *P < 0.05; **P < 0.01; ***P < 0.001 vs value at 0 h. c UV-vis absorbance spectra of different PVA-DOPA-Mucin mixtures. d FTIR spectra of different PVA-DOPA before and after mixed with mucin. e SAXS spectra of different PVA-DOPA before and after mixed with mucin. f Schematic overview of the interactions between the PVA-DOPA film and mucus. NPs: nanoparticles, Dex: dexamethasone. All data are Mean ± S.D. Statistics was calculated by one-way ANOVA followed by Tukey’s post-test. Exact P values are given in the Source Data file. Source data are provided as a Source data file.