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Spiropyran-based chromic hydrogels for CO(2) absorption and detection
By enabling rapid, cost-effective, user-friendly and in situ detection of carbon dioxide, colorimetric CO(2) sensors are of relevance for a variety of fields. However, it still remains a challenge the development of optical chemosensors for CO(2) that combine high sensitivity, selectivity and reusab...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10242082/ https://www.ncbi.nlm.nih.gov/pubmed/37288075 http://dx.doi.org/10.3389/fchem.2023.1176661 |
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author | Marco, Arnau Guirado, Gonzalo Sebastián, Rosa María Hernando, Jordi |
author_facet | Marco, Arnau Guirado, Gonzalo Sebastián, Rosa María Hernando, Jordi |
author_sort | Marco, Arnau |
collection | PubMed |
description | By enabling rapid, cost-effective, user-friendly and in situ detection of carbon dioxide, colorimetric CO(2) sensors are of relevance for a variety of fields. However, it still remains a challenge the development of optical chemosensors for CO(2) that combine high sensitivity, selectivity and reusability with facile integration into solid materials. Herein we pursued this goal by preparing hydrogels functionalized with spiropyrans, a well-known class of molecular switches that undergo different color changes upon application of light and acid stimuli. By varying the nature of the substituents of the spiropyran core, different acidochromic responses are obtained in aqueous media that allow discriminating CO(2) from other acid gases (e.g., HCl). Interestingly, this behavior can be transferred to functional solid materials by synthesizing polymerizable spiropyran derivatives, which are used to prepare hydrogels. These materials preserve the acidochromic properties of the incorporated spiropyrans, thus leading to selective, reversible and quantifiable color changes upon exposure to different CO(2) amounts. In addition, CO(2) desorption and, therefore, recovery of the initial state of the chemosensor is favored by irradiation with visible light. This makes spiropyran-based chromic hydrogels promising systems for the colorimetric monitorization of carbon dioxide in a diversity of applications. |
format | Online Article Text |
id | pubmed-10242082 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-102420822023-06-07 Spiropyran-based chromic hydrogels for CO(2) absorption and detection Marco, Arnau Guirado, Gonzalo Sebastián, Rosa María Hernando, Jordi Front Chem Chemistry By enabling rapid, cost-effective, user-friendly and in situ detection of carbon dioxide, colorimetric CO(2) sensors are of relevance for a variety of fields. However, it still remains a challenge the development of optical chemosensors for CO(2) that combine high sensitivity, selectivity and reusability with facile integration into solid materials. Herein we pursued this goal by preparing hydrogels functionalized with spiropyrans, a well-known class of molecular switches that undergo different color changes upon application of light and acid stimuli. By varying the nature of the substituents of the spiropyran core, different acidochromic responses are obtained in aqueous media that allow discriminating CO(2) from other acid gases (e.g., HCl). Interestingly, this behavior can be transferred to functional solid materials by synthesizing polymerizable spiropyran derivatives, which are used to prepare hydrogels. These materials preserve the acidochromic properties of the incorporated spiropyrans, thus leading to selective, reversible and quantifiable color changes upon exposure to different CO(2) amounts. In addition, CO(2) desorption and, therefore, recovery of the initial state of the chemosensor is favored by irradiation with visible light. This makes spiropyran-based chromic hydrogels promising systems for the colorimetric monitorization of carbon dioxide in a diversity of applications. Frontiers Media S.A. 2023-05-23 /pmc/articles/PMC10242082/ /pubmed/37288075 http://dx.doi.org/10.3389/fchem.2023.1176661 Text en Copyright © 2023 Marco, Guirado, Sebastián and Hernando. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Marco, Arnau Guirado, Gonzalo Sebastián, Rosa María Hernando, Jordi Spiropyran-based chromic hydrogels for CO(2) absorption and detection |
title | Spiropyran-based chromic hydrogels for CO(2) absorption and detection |
title_full | Spiropyran-based chromic hydrogels for CO(2) absorption and detection |
title_fullStr | Spiropyran-based chromic hydrogels for CO(2) absorption and detection |
title_full_unstemmed | Spiropyran-based chromic hydrogels for CO(2) absorption and detection |
title_short | Spiropyran-based chromic hydrogels for CO(2) absorption and detection |
title_sort | spiropyran-based chromic hydrogels for co(2) absorption and detection |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10242082/ https://www.ncbi.nlm.nih.gov/pubmed/37288075 http://dx.doi.org/10.3389/fchem.2023.1176661 |
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