A Switchable Deep Eutectic System Based on Diarylethene
Cruz, Hugo (International Iberian Nanotechnology Laboratory)
Jordão, Noémi (Universitat Autònoma de Barcelona. Departament de Química)
Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química)
Mena Fernández, Silvia (Universitat Autònoma de Barcelona)
Santos, Andreia F. M. (NOVA University of Lisbon)
Viciosa, M. Teresa (University of Lisbon)
Zalewska, Karolina (NOVA University of Lisbon)
Branco, Luis C. (NOVA University of Lisbon)
Hernando Campos, Jordi (Universitat Autònoma de Barcelona. Departament de Química)
Guirado, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)

Date:	2025
Abstract:	Deep eutectic solvents (DESs) have emerged as promising alternative solvents for a wide range of applications, such as extraction and separation processes. To broaden their functionality, the development of responsive DESs (RDESs) has attracted particular interest due to their ability to abruptly change their properties in response to external stimuli. Herein, we aim to prepare a new RDES comprising a photo- and electrochromic dicarboxylic diarylethene derivative (DTE) and quadrol (Q). The prepared system exhibits a color change from yellowish to pinkish-red under UV irradiation due to the photoisomerization of DTE, which can be reverted by visible light or oxidative electrolysis. Interestingly, this process also alters the strength of the hydrogen bonds between DTE and Q, leading to an externally controlled change in the thermal and electrical properties of the eutectic mixture. Therefore, these results demonstrate the capacity to photo- and electromodulate the behavior of DESs by incorporating stimuli-responsive units, thereby opening new perspectives toward the design of solvents with tunable properties for a variety of industrial and materials science applications.
Grants:	Agencia Estatal de Investigación PID2022-141293OB-I00 Generalitat de Catalunya 2021/SGR-00052 Generalitat de Catalunya 2021/SGR-00064
Note:	Altres ajuts: acords transformatius de la UAB
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	ACS omega, Vol. 10, Num. 43 (October 2025) , p. 50951-50961, ISSN 2470-1343

DOI: 10.1021/acsomega.5c04216
PMID: 41210756

11 p, 3.5 MB

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