ArticleProceedings of the National Academy of Sciences of the United States of America2021
Tunable membranes incorporating artificial water channels for high-performance brackish/low-salinity water reverse osmosis desalination.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 53 citations in OpenAlex.
- Supramolecular nanocrystalline membranes with well-aligned subnanochannels for enhanced reverse osmosis desalination.Nature communications · 2025Article
- Seamless incorporation of artificial water channels in defect-free polyamide membrane for desalination of brackish water.Nature communications · 2025Article
- Nano-confined controllable crystallization in supramolecular polymeric membranes for ultra-selective desalination.Nature communications · 2025Article
- A rapid-convergent particle swarm optimization approach for multiscale design of high-permeance seawater reverse osmosis systems.Communications engineering · 2024Article
- Precision ion separation via self-assembled channels.Nature communications · 2024Article
- Self-assembled dendrimer polyamide nanofilms with enhanced effective pore area for ion separation.Nature communications · 2024Article
- Membrane science emerging as a convergent scientific field with molecular origins and understanding, and global impact.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
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Authors and funding
9 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Membrane-based technologies have a tremendous role in water purification and desalination. Inspired by biological proteins, artificial water channels (AWCs) have been proposed to overcome the permeability/selectivity trade-off of desalination processes. Promising strategies exploiting the AWC with angstrom-scale selectivity have revealed their impressive performances when embedded in bilayer membranes. Herein, we demonstrate that self-assembled imidazole-quartet (I-quartet) AWCs are macroscopically incorporated within industrially relevant reverse osmosis membranes. In particular, we explore the best combination between I-quartet AWC and m-phenylenediamine (MPD) monomer to achieve a seamless incorporation of AWC in a defect-free polyamide membrane. The performance of the membranes is evaluated by cross-flow filtration under real reverse osmosis conditions (15 to 20 bar of applied pressure) by filtration of brackish feed streams. The optimized bioinspired membranes achieve an unprecedented improvement, resulting in more than twice (up to 6.9 L⋅m
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