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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...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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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. |
format | Online Article Text |
id | pubmed-7530991 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
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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