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Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites

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Published on: February 6, 2016

G-Quadruplex Lamellar Liquid Crystals Based on Deep Eutectic Solvents.

Zeyi Wang¹, Yuzhen Qian¹, Shuli Dong¹

¹Ministry of Education, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Jinan 250100, P. R. China.

The Journal of Physical Chemistry. B

|September 15, 2025

Summary

This summary is machine-generated.

Researchers created novel G-quadruplex liquid crystals using deep eutectic solvents (DESs). This work advances understanding of G-quadruplex assembly and DES applications in ionic soft materials for electronics and energy storage.

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Area of Science:

Materials Science
Supramolecular Chemistry
Green Chemistry

Background:

Deep eutectic solvents (DESs) are recognized as sustainable alternatives to traditional solvents due to their favorable properties.
Research into G-quadruplex-based ionic soft materials, particularly within DESs, is limited.
G-quadruplex structures offer unique properties for advanced material development.

Purpose of the Study:

To construct G-quadruplex lamellar liquid crystals within a deep eutectic solvent (choline chloride-ethylene glycol).
To investigate the solvent-mediated formation mechanism and the role of solvent molecule orientation.
To explore the influence of metal ions and reactant concentrations on G-quadruplex assembly and material properties.

Main Methods:

Synthesis of G-quadruplex lamellar liquid crystals in choline chloride-ethylene glycol (ChCl-EG) mixtures.
Analysis of solvent-mediated formation mechanisms, including the role of dynamic borate esters.
Investigation of metal ion (K+, Na+, Ca2+, Sr2+, Ba2+) effects on G-quadruplex assembly and gel properties.
Characterization of ionic conductivity and electrochemical window of the resulting materials.

Main Results:

Successful formation of G-quadruplex lamellar liquid crystals in DESs.
Identification of oriented solvent molecules as key to lamellar structure formation.
Demonstration that dynamic borate esters modulate inter-G-quadruplex and G-quadruplex-solvent interactions.
Metal ions were shown to control G-quadruplex stacking and regulate mechanical properties.
The G-quadruplex lamellar liquid crystal achieved high ionic conductivity (4.6 mS·cm-1) and a wide electrochemical window (4.6 V).

Conclusions:

Deep eutectic solvents provide a versatile platform for designing novel G-quadruplex-based ionic soft materials.
The study elucidates a solvent-mediated assembly mechanism crucial for lamellar liquid crystal formation.
These G-quadruplex materials hold promise for applications in flexible electronics and energy storage devices.