Mixed Conductive, Injectable, and Fluorescent Supramolecular Eutectogel Composites

Eutectogels are an emerging family of soft ionic materials alternative to ionic liquid gels and organogels, offering fresh perspectives for designing functional dynamic platforms in water‐free environments. Herein, the first example of mixed ionic and electronic conducting supramolecular eutectogel...

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Published in:Angewandte Chemie 2023-06, Vol.135 (26), p.n/a
Main Authors: Criado‐Gonzalez, Miryam, Alegret, Nuria, Fracaroli, Alejandro M., Mantione, Daniele, Guzmán‐González, Gregorio, Del Olmo, Rafael, Tashiro, Kentaro, Tomé, Liliana C., Picchio, Matias L., Mecerreyes, David
Format: Article
Language:English
Subjects:
Biocompatibility
Bioimaging
Chemistry
Chondroitin sulfate
Composite materials
Deep Eutectic Solvents
Fluorescence
Gels
Glutamic acid
Injectability
Ion currents
Ionic Liquids
Medical imaging
Organic Mixed Ionic–Electronic Conductors
Supramolecular Eutectogels
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Summary:Eutectogels are an emerging family of soft ionic materials alternative to ionic liquid gels and organogels, offering fresh perspectives for designing functional dynamic platforms in water‐free environments. Herein, the first example of mixed ionic and electronic conducting supramolecular eutectogel composites is reported. A fluorescent glutamic acid‐derived low‐molecular‐weight gelator (LMWG) was found to self‐assemble into nanofibrillar networks in deep eutectic solvents (DES)/poly(3,4‐ethylenedioxythiophene) (PEDOT): chondroitin sulfate dispersions. These dynamic materials displayed excellent injectability and self‐healing properties, high ionic conductivity (up to 10−2 S cm−1), good biocompatibility, and fluorescence imaging ability. This set of features turns the mixed conducting supramolecular eutectogels into promising adaptive materials for bioimaging and electrostimulation applications. This work presents the first example of mixed ionic/electronic conductive eutectogel composites formed from low molecular weight gelators (LMWG) combined with poly(3,4‐ethylenedioxythiophene) (PEDOT): chondroitin sulfate (ChS) and glycine/choline chloride (Gly/ChCl) deep eutectic solvent (DES). Eutectogels exhibit fluorescence, high combined conductivity, self‐healing, and biocompatible properties to be used as injectable materials for bioimaging.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.202301489