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Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback
Biological self‐assemblies self‐ and cross‐regulate each other via chemical reaction networks (CRNs) and feedback. Although artificial transient self‐assemblies have been realized via activation/deactivation CRNs, the transient structures themselves do mostly not engage in the CRN. We introduce a ra...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9311650/ https://www.ncbi.nlm.nih.gov/pubmed/35235231 http://dx.doi.org/10.1002/anie.202201573 |
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author | Sharma, Charu Walther, Andreas |
author_facet | Sharma, Charu Walther, Andreas |
author_sort | Sharma, Charu |
collection | PubMed |
description | Biological self‐assemblies self‐ and cross‐regulate each other via chemical reaction networks (CRNs) and feedback. Although artificial transient self‐assemblies have been realized via activation/deactivation CRNs, the transient structures themselves do mostly not engage in the CRN. We introduce a rational design approach for chemo‐structural feedback, and present a transient colloidal co‐assembly system, where the formed co‐assemblies accelerate their destruction autonomously. We achieve this by immobilizing enzymes of a deactivating acid‐producing enzymatic cascade on pH‐switchable microgels that can form co‐assemblies at high pH. Since the enzyme partners are immobilized on individual microgels, the co‐assembled state brings them close enough for enhanced acid generation. The amplified deactivator production (acid) leads to an almost two‐fold reduction in the lifetime of the transiently formed pH‐state. Our study thus introduces versatile mechanisms for chemo‐structural feedback. |
format | Online Article Text |
id | pubmed-9311650 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-93116502022-07-29 Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback Sharma, Charu Walther, Andreas Angew Chem Int Ed Engl Communications Biological self‐assemblies self‐ and cross‐regulate each other via chemical reaction networks (CRNs) and feedback. Although artificial transient self‐assemblies have been realized via activation/deactivation CRNs, the transient structures themselves do mostly not engage in the CRN. We introduce a rational design approach for chemo‐structural feedback, and present a transient colloidal co‐assembly system, where the formed co‐assemblies accelerate their destruction autonomously. We achieve this by immobilizing enzymes of a deactivating acid‐producing enzymatic cascade on pH‐switchable microgels that can form co‐assemblies at high pH. Since the enzyme partners are immobilized on individual microgels, the co‐assembled state brings them close enough for enhanced acid generation. The amplified deactivator production (acid) leads to an almost two‐fold reduction in the lifetime of the transiently formed pH‐state. Our study thus introduces versatile mechanisms for chemo‐structural feedback. John Wiley and Sons Inc. 2022-03-14 2022-05-02 /pmc/articles/PMC9311650/ /pubmed/35235231 http://dx.doi.org/10.1002/anie.202201573 Text en © 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Communications Sharma, Charu Walther, Andreas Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback |
title | Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback |
title_full | Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback |
title_fullStr | Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback |
title_full_unstemmed | Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback |
title_short | Self‐Regulating Colloidal Co‐Assemblies That Accelerate Their Own Destruction via Chemo‐Structural Feedback |
title_sort | self‐regulating colloidal co‐assemblies that accelerate their own destruction via chemo‐structural feedback |
topic | Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9311650/ https://www.ncbi.nlm.nih.gov/pubmed/35235231 http://dx.doi.org/10.1002/anie.202201573 |
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