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Yet, their practical application remains limited due to structural instability under high pressure and swelling of nanochannels caused by water intercalation. This work overcomes these issues by aligning GO\u2010based liquid crystals via shear forces and stabilizing them with a sequential interpenetrating polymeric network (IPN) using electrostatic anchoring. The process preserves long\u2010range order through nanoconfinement. Using dopamine and GO liquid crystals, a nematic phase is achieved at very low concentrations, unlike conventional approaches. Characterization via microscopy and spectroscopy confirms pore sizes of \u223c7 nm due to nanomaterial inclusion. These highly ordered and structurally stable membranes demonstrate exceptional water flux (145 LMH) and &gt;97% separation efficiency for monovalent\/divalent salts, dyes, and antibiotics. Molecular dynamics (MD) simulations reveal reduced water flux upon confining rGO\u2010I sheets in the IPN, scaling with rGO\u2010I concentration, and show fewer ions within the membrane, supporting feed\u2010side retention. These findings match experimental results. The membranes also display antifouling, chlorine resistance, antibacterial activity, and cytocompatibility. They remain stable over multiple uses and under harsh conditions, without swelling\u2010demonstrating strong potential for large\u2010scale, sustainable water treatment.<\/jats:p>","DOI":"10.1002\/smll.202503746","type":"journal-article","created":{"date-parts":[[2025,5,16]],"date-time":"2025-05-16T05:57:32Z","timestamp":1747375052000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Sequential Interpenetrating Polymer Network Confines Shear\u2010Aligned Graphene Oxide Liquid Crystals Enabling Precise Molecular Sieving"],"prefix":"10.1002","volume":"21","author":[{"given":"Ria","family":"Sen Gupta","sequence":"first","affiliation":[{"name":"Department of Materials Engineering Indian Institute of Science  Bengaluru Karnataka 560012 India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4588-2428","authenticated-orcid":false,"given":"Sk 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