Dual Responsive Regulation of Host-Guest Complexation in Aqueous Media to Control Partial Release of the Host.
host-guest systems
molecular recognition
polymers
supramolecular chemistry
Journal
Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
Titre abrégé: Chemistry
Pays: Germany
ID NLM: 9513783
Informations de publication
Date de publication:
27 Jan 2020
27 Jan 2020
Historique:
received:
17
09
2019
pubmed:
29
9
2019
medline:
29
9
2019
entrez:
28
9
2019
Statut:
ppublish
Résumé
The regulation of the concentration of a wide range of small molecules is ubiquitous in biological systems because it enables them to adapt to the continuous changes in the environmental conditions. Herein, we report an aqueous synthetic system that provides an orchestrated, temperature and pH controlled regulation of the complexation between the cyclobis(paraquat-p-phenylene) host (BBox) and a 1,5-dialkyloxynaphthalene (DNP) guest attached to a well-defined dual responsive copolymer composed of N-isopropylacrylamide as thermoresponsive monomer and acrylic acid as pH-responsive monomer. Controlled, partial release of the BBox, enabling control over its concentration, is based on the tunable partial collapse of the copolymer. This colored supramolecular assembly is one of the first synthetic systems providing control over the concentration of a small molecule, providing great potential as both T and pH chromic materials and as a basis to develop more complex systems with molecular communication.
Identifiants
pubmed: 31559661
doi: 10.1002/chem.201904287
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1292-1297Subventions
Organisme : Agence Nationale de la Recherche
ID : STRAPA project, ANR-12-BS08-0005
Informations de copyright
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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