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Achieving high permeability and enhanced selectivity for Angstrom-scale separations using artificial water channel membranes
Open accessAbstract
Synthetic polymer membranes, critical to diverse energy-efficient separations, are subject to permeability-selectivity trade-offs that decrease their overall efficacy. These trade-offs are due to structural variations (e.g., broad pore size distributions) in both nonporous membranes used for Angstrom-scale separations and porous membranes used for nano to micron-scale separations. Biological membranes utilize well-defined Angstrom-scale pores to provide exceptional transport properties and can be used as inspiration to overcome this trade-off. Here, we present a comprehensive demonstration of such a bioinspired approach based on pillar[5]arene artificial water channels, resulting in artificial water channel-based block copolymer membranes. These membranes have a sharp selectivity profile with a molecular weight cutoff of ~ 500 Da, a size range challenging to achieve with current membranes, while achieving a large improvement in permeability (~65 L m−2 h−1 bar−1 compared with 4–7 L m−2 h−1 bar−1) over similarly rated commercial membranes.
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Lawton, R. O., Nair, U. S., Pielke, R. A., & Welch, R. M. (2001) · Science · doi:10.1126/science.1062459 · Cited by 1,169
Modeling healthy male white matter and myelin development: 3 through 60months of age
Dean, D. C., O'Muircheartaigh, J., Dirks, H., Waskiewicz, N., Lehman, K., Walker, L., Han, M., & Deoni, S. C. L. (2014) · NeuroImage · doi:10.1016/j.neuroimage.2013.09.058 · Cited by 163
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Metadata
- Authors
- Shen, Y.-X., Song, W., Barden, D. R., Ren, T., Lang, C., Feroz, H., Henderson, C. B., Saboe, P. O., Tsai, D., Yan, H., Butler, P. J., Bazan, G. C., Phillip, W. A., Hickey, R. J., Cremer, P. S., Vashisth, H., & Kumar, M.
- Venue
- Nature Communications
- Published
- 2018-06-12
- Volume
- 9
- Issue
- 1
- Pages
- 2294-2294
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2805686959
- Cited by
- 159
- References
- 2
- FWCI
- 8.17
- Type
- journal article
- Language
- en
- Open access
- gold
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- Shen, Y.-X., Song, W., Barden, D. R., Ren, T., Lang, C., Feroz, H., Henderson, C. B., Saboe, P. O., Tsai, D., Yan, H., Butler, P. J., Bazan, G. C., Phillip, W. A., Hickey, R. J., Cremer, P. S., Vashisth, H., & Kumar, M. (2018). Achieving high permeability and enhanced selectivity for Angstrom-scale separations using artificial water channel membranes. Nature Communications. https://doi.org/10.1038/s41467-018-04604-y
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