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. 2023 Jun 26;62(26):e202301489.
doi: 10.1002/anie.202301489. Epub 2023 May 15.

Mixed Conductive, Injectable, and Fluorescent Supramolecular Eutectogel Composites

Miryam Criado-Gonzalez  1 , Nuria Alegret  2 , Alejandro M Fracaroli  3 , Daniele Mantione  1   4 , Gregorio Guzmán-González  1 , Rafael Del Olmo  1 , Kentaro Tashiro  4 , Liliana C Tomé  5 , Matias L Picchio  1   6 , David Mecerreyes  1   7
Affiliations

Mixed Conductive, Injectable, and Fluorescent Supramolecular Eutectogel Composites

Miryam Criado-Gonzalez et al. Angew Chem Int Ed Engl. .

Abstract

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.

Keywords: Bioimaging; Deep Eutectic Solvents; Ionic Liquids; Organic Mixed Ionic-Electronic Conductors; Supramolecular Eutectogels.

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