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Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications
As one of common dynamic covalent bonds, acylhydrazone bond plays an important role in developing intelligent responsive materials. In this report, we present acylhydrazone-based dynamic polymers with multi-stimuli responsiveness, particularly metal recognition behaviours and their modulation. A ser...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society Publishing
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5579109/ https://www.ncbi.nlm.nih.gov/pubmed/28878993 http://dx.doi.org/10.1098/rsos.170466 |
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author | Gao, Siheng Li, Lijie Vohra, Ismail Zha, Daijun You, Lei |
author_facet | Gao, Siheng Li, Lijie Vohra, Ismail Zha, Daijun You, Lei |
author_sort | Gao, Siheng |
collection | PubMed |
description | As one of common dynamic covalent bonds, acylhydrazone bond plays an important role in developing intelligent responsive materials. In this report, we present acylhydrazone-based dynamic polymers with multi-stimuli responsiveness, particularly metal recognition behaviours and their modulation. A series of polyacylhydrazones with different metal-binding sites were designed and prepared in a modular fashion. Titration of these receptors with a diverse set of metal ions, including Cu(2+), Zn(2+) and La(3+), resulted in unique optical changes, and both the sensitivity and selectivity profiles can be regulated. Moreover, the metal-binding feature was facilely modulated by changing the solvent. The addition of weakly basic anions was employed to further fine-tune the responsiveness of the polymers by taking advantage of the cooperative effect with metal coordination. Finally, the sensitive detection of 6-mercaptopurine and pyrophosphate was achieved to demonstrate the application potential of these systems. |
format | Online Article Text |
id | pubmed-5579109 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | The Royal Society Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-55791092017-09-06 Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications Gao, Siheng Li, Lijie Vohra, Ismail Zha, Daijun You, Lei R Soc Open Sci Chemistry As one of common dynamic covalent bonds, acylhydrazone bond plays an important role in developing intelligent responsive materials. In this report, we present acylhydrazone-based dynamic polymers with multi-stimuli responsiveness, particularly metal recognition behaviours and their modulation. A series of polyacylhydrazones with different metal-binding sites were designed and prepared in a modular fashion. Titration of these receptors with a diverse set of metal ions, including Cu(2+), Zn(2+) and La(3+), resulted in unique optical changes, and both the sensitivity and selectivity profiles can be regulated. Moreover, the metal-binding feature was facilely modulated by changing the solvent. The addition of weakly basic anions was employed to further fine-tune the responsiveness of the polymers by taking advantage of the cooperative effect with metal coordination. Finally, the sensitive detection of 6-mercaptopurine and pyrophosphate was achieved to demonstrate the application potential of these systems. The Royal Society Publishing 2017-08-30 /pmc/articles/PMC5579109/ /pubmed/28878993 http://dx.doi.org/10.1098/rsos.170466 Text en © 2017 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Chemistry Gao, Siheng Li, Lijie Vohra, Ismail Zha, Daijun You, Lei Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
title | Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
title_full | Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
title_fullStr | Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
title_full_unstemmed | Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
title_short | Differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
title_sort | differential metal-binding properties of dynamic acylhydrazone polymers and their sensing applications |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5579109/ https://www.ncbi.nlm.nih.gov/pubmed/28878993 http://dx.doi.org/10.1098/rsos.170466 |
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