Cited 2 time in
Cited 2 time in
Biomimetic Liquid-Sieving through Covalent Molecular Meshes
- Biomimetic Liquid-Sieving through Covalent Molecular Meshes
- Byeon, M[Byeon, Minseon]; Bae, JS[Bae, Jae-Sung]; Park, S[Park, Seongjin]; Jang, YH[Jang, Yun Hee]; Park, JW[Park, Ji-Woong]
- DGIST Authors
- Park, S[Park, Seongjin]; Jang, YH[Jang, Yun Hee]
- Issue Date
- Chemistry of Materials, 28(21), 8044-8050
- Article Type
- Biological Cells; Biomimetics; Cytology; Glucose; Layer by Layer; Liquids; Mesh Generation; Molecular Networks; Molecular Pores; Molecules; Nano-Porous Substrate; Porous Materials; Proteins; Small Molecules; Transmembrane Pressures; Water Molecule
- The porin pores of biological cell membranes enable molecules to be sieved out selectively while water molecules traverse the channel in a single file. Imitating this streaming mechanism is a promising way to create artificial liquid-sieving membranes, but ultrathin molecular pores need to be produced in a large membrane format to be functional under high transmembrane pressures. Here we show that a membrane composed of a covalent molecular mesh can filter mixtures of small molecules in a liquid by the porin-like mechanism. Tetrahedral network formers are polymerized layer-by-layer on a nanoporous substrate to yield a thin layer of a covalent molecular network containing an array of molecular meshes grown by a pore-limited mechanism. Each of the meshes exhibits high water permeability, estimated to be greater than 2500 Lm-2 h-1. Glucose or larger molecules are selectively sieved out while the solvent and solutes smaller than glucose traverse the mesh. © 2016 American Chemical Society.
- American Chemical Society
- Related Researcher
Jang, Yun Hee
CMMM Lab(Curious Minds’ Molecular Modeling Laboratory)
Multiscale molecular modeling (quantum mechanics calculation; molecular dynamics simulation) : Supercomputer-assisted molecular-level understanding of materials and their chemistry; which leads to rational design of high-performance organic-inorganic-hybrid materials for clean and renewable energy as well as low-energy-consumption electronic devices
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