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Porous organic cages as synthetic water channels

Nature has protein channels (e.g., aquaporins) that preferentially transport water molecules while rejecting even the smallest hydrated ions. Aspirations to create robust synthetic counterparts have led to the development of a few one-dimensional channels. However, replicating the performance of the...

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Autores principales: Yuan, Yi Di, Dong, Jinqiao, Liu, Jie, Zhao, Daohui, Wu, Hui, Zhou, Wei, Gan, Hui Xian, Tong, Yen Wah, Jiang, Jianwen, Zhao, Dan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7530991/
https://www.ncbi.nlm.nih.gov/pubmed/33004793
http://dx.doi.org/10.1038/s41467-020-18639-7
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author Yuan, Yi Di
Dong, Jinqiao
Liu, Jie
Zhao, Daohui
Wu, Hui
Zhou, Wei
Gan, Hui Xian
Tong, Yen Wah
Jiang, Jianwen
Zhao, Dan
author_facet Yuan, Yi Di
Dong, Jinqiao
Liu, Jie
Zhao, Daohui
Wu, Hui
Zhou, Wei
Gan, Hui Xian
Tong, Yen Wah
Jiang, Jianwen
Zhao, Dan
author_sort Yuan, Yi Di
collection PubMed
description Nature has protein channels (e.g., aquaporins) that preferentially transport water molecules while rejecting even the smallest hydrated ions. Aspirations to create robust synthetic counterparts have led to the development of a few one-dimensional channels. However, replicating the performance of the protein channels in these synthetic water channels remains a challenge. In addition, the dimensionality of the synthetic water channels also imposes engineering difficulties to align them in membranes. Here we show that zero-dimensional porous organic cages (POCs) with nanoscale pores can effectively reject small cations and anions while allowing fast water permeation (ca. 10(9) water molecules per second) on the same magnitude as that of aquaporins. Water molecules are found to preferentially flow in single-file, branched chains within the POCs. This work widens the choice of water channel morphologies for water desalination applications.
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spelling pubmed-75309912020-10-19 Porous organic cages as synthetic water channels Yuan, Yi Di Dong, Jinqiao Liu, Jie Zhao, Daohui Wu, Hui Zhou, Wei Gan, Hui Xian Tong, Yen Wah Jiang, Jianwen Zhao, Dan Nat Commun Article Nature has protein channels (e.g., aquaporins) that preferentially transport water molecules while rejecting even the smallest hydrated ions. Aspirations to create robust synthetic counterparts have led to the development of a few one-dimensional channels. However, replicating the performance of the protein channels in these synthetic water channels remains a challenge. In addition, the dimensionality of the synthetic water channels also imposes engineering difficulties to align them in membranes. Here we show that zero-dimensional porous organic cages (POCs) with nanoscale pores can effectively reject small cations and anions while allowing fast water permeation (ca. 10(9) water molecules per second) on the same magnitude as that of aquaporins. Water molecules are found to preferentially flow in single-file, branched chains within the POCs. This work widens the choice of water channel morphologies for water desalination applications. Nature Publishing Group UK 2020-10-01 /pmc/articles/PMC7530991/ /pubmed/33004793 http://dx.doi.org/10.1038/s41467-020-18639-7 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Yuan, Yi Di
Dong, Jinqiao
Liu, Jie
Zhao, Daohui
Wu, Hui
Zhou, Wei
Gan, Hui Xian
Tong, Yen Wah
Jiang, Jianwen
Zhao, Dan
Porous organic cages as synthetic water channels
title Porous organic cages as synthetic water channels
title_full Porous organic cages as synthetic water channels
title_fullStr Porous organic cages as synthetic water channels
title_full_unstemmed Porous organic cages as synthetic water channels
title_short Porous organic cages as synthetic water channels
title_sort porous organic cages as synthetic water channels
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7530991/
https://www.ncbi.nlm.nih.gov/pubmed/33004793
http://dx.doi.org/10.1038/s41467-020-18639-7
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