Synergistic integration of ε-polylysine and bacterial cellulose: High-flux ultrafiltration membranes with long-term antibacterial performance for drinking water

Synergistic integration of ε-polylysine and bacterial cellulose: High-flux ultrafiltration membranes with long-term antibacterial performance for drinking water | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 11 January 2026 V1 Latest version Share on Synergistic integration of ε-polylysine and bacterial cellulose: High-flux ultrafiltration membranes with long-term antibacterial performance for drinking water Authors : yating wang , Xia Meng , Joe R. Zhao , Weijue Gao , Zhiyang Cheng 0009-0004-8496-8699 [email protected] , Shoujuan Wang , Pedram Fatehi , and Fangong Kong Authors Info & Affiliations https://doi.org/10.22541/au.176814937.76701754/v1 134 views 66 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Generally, ultrafiltration (UF) membranes suffer from insufficient antibacterial cycles when dealing with biofouling. Herein, a new antibacterial sustainable material was synthesized from bacterial cellulose (BC), which was esterified with ε-polylysine (BC&ε-PL). The results confirmed that the grafting of ε-PL on BC reversed the zeta potential of BC from -20 mV to 30 mV. The BC&ε-PL incorporated polyether sulfone (PES) membrane exhibited a denser pore distribution and higher hydrophilicity compared with the pure PES membrane. Interestingly, membrane flux was increased from 73 L·m-2·h-1 for PES to 166 L·m-2·h-1 for PES-BC&ε-PL. More importantly, dynamic antibacterial experiments demonstrated an inhibition rate of over 80 % for PES-BC&ε-PL and its long-term antibacterial stability. The results confirmed the cell rupture and bacterial death as the antibacterial mechanism of the membrane. Theoretical XDLVO calculations confirmed that the electrostatic adsorption force was significantly lower for dead bacteria, preventing their deposition and ultimately effectively overcoming biofouling. This study provided a new direction for generating highly performing sustainable membranes for drinking water and offered a novel fabrication process of a long-term antibacterial UF membrane. Supplementary Material File (main document.docx) Download 38.87 MB Information & Authors Information Version history V1 Version 1 11 January 2026 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords biomass materials cellulose membranes water treatment Authors Affiliations yating wang Qilu University of Technology View all articles by this author Xia Meng Qilu University of Technology View all articles by this author Joe R. Zhao Lakehead University View all articles by this author Weijue Gao Lakehead University View all articles by this author Zhiyang Cheng 0009-0004-8496-8699 [email protected] Qilu University of Technology View all articles by this author Shoujuan Wang Qilu University of Technology View all articles by this author Pedram Fatehi Lakehead University View all articles by this author Fangong Kong Qilu University of Technology View all articles by this author Metrics & Citations Metrics Article Usage 134 views 66 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation yating wang, Xia Meng, Joe R. Zhao, et al. Synergistic integration of ε-polylysine and bacterial cellulose: High-flux ultrafiltration membranes with long-term antibacterial performance for drinking water. Authorea . 11 January 2026. DOI: https://doi.org/10.22541/au.176814937.76701754/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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