{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T16:31:21Z","timestamp":1787157081784,"version":"build-2736575974"},"reference-count":47,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T00:00:00Z","timestamp":1783814400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,7,12]],"date-time":"2026-07-12T00:00:00Z","timestamp":1783814400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Macromol. Rapid Commun."],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Known CO\n                    <jats:sub>2<\/jats:sub>\n                    \u2010responsive membranes exhibit single\u2010charge\u2010switching (neutral\u2013cationic), which limits their ability to regulate electrostatic interactions with oppositely charged foulants in membrane cleaning. Herein, CO\n                    <jats:sub>2<\/jats:sub>\n                    \u2010responsive poly(ether sulfone) (PES) ultrafiltration membranes with a dual charge\u2010switchable surface are prepared by adding an amphoteric diblock copolymer additive to PES via the nonsolvent\u2010induced phase separation (NIPS) method. By tuning the isoelectric point (IEP) of the copolymer additive to around 5, the membrane surface charge reversibly switches between positive and negative states under alternating CO\n                    <jats:sub>2<\/jats:sub>\n                    bubbling, lowering pH to \u223c4 (below IEP), and N\n                    <jats:sub>2<\/jats:sub>\n                    bubbling, raising pH to \u223c7 (above IEP). ATR\u2010FTIR and water contact angle analyses indicate that increasing the copolymer content in the casting solution increases the amount of amphoteric chains on the membrane surface. Using bovine serum albumin (BSA) as a model foulant with a similar IEP, protein\u2010fouled membranes are effectively cleaned with water when CO\n                    <jats:sub>2<\/jats:sub>\n                    and N\n                    <jats:sub>2<\/jats:sub>\n                    are alternately bubbled due to the constantly existing electrostatic repulsion between the membrane and protein. The gas\u2010triggered cleaning efficiency is comparable to conventional acid\/alkaline cleaning and remains stable over repeated fouling\u2010cleaning cycles, underscoring the potential of this approach for environmentally friendly and chemical\u2010free membrane cleaning.\n                  <\/jats:p>","DOI":"10.1002\/marc.70357","type":"journal-article","created":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T04:01:46Z","timestamp":1783915306000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["CO\n                    <sub>2<\/sub>\n                    \u2010Responsive Dual\u2010Charge\u2010Switchable Membranes for Protein Foulant Cleaning"],"prefix":"10.1002","volume":"47","author":[{"given":"Niloofar","family":"Zamanian","sequence":"first","affiliation":[{"name":"D\u00e9partement de chimie Universit\u00e9 De Sherbrooke  Sherbrooke Qu\u00e9bec 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