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. 2023 May 3;14:2553. doi: 10.1038/s41467-023-37925-8

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© The Author(s) 2023

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 Chemical composition and acidic/hydrophobic group ratio of the N. meningitidis polysaccharides MenY and MenW135. Antibiofilm activity against E. coli (B) and S. aureus (C) with MenY and MenW135 in comparison with previously identified active macromolecules Vi and MenA. Biofilm inhibition tests were performed in the presence of 50 μg/mL of polysaccharide. Distilled water was used as a negative control. Each experiment corresponds to n = 3 biologically independent experiments, except for the control (n = 8). Source data are provided as a Source Data file. Statistical analyzes correspond to two-tailed unpaired t-test with Welch correction. **p < 0.01; ***p < 0.001; ****p < 0.0001. Error bars represent SD.