Citation: Zhaoyang Wang, Zhisen Zhu, Shenglei Hu, Wenling Zhang, Wentao Bi. Multifunctional eutectogel with tunable mechanics and stable conductivity for wearable sensing and anti-counterfeiting applications[J]. Chinese Chemical Letters, ;2026, 37(11): 112342. doi: 10.1016/j.cclet.2025.112342 shu

Multifunctional eutectogel with tunable mechanics and stable conductivity for wearable sensing and anti-counterfeiting applications

Zhaoyang Wang ^a ,
Zhisen Zhu ^b ,
Shenglei Hu ^a ,
Wenling Zhang ^{b, *,} ,
Wentao Bi ^{a, *,}

a.
Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
b.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

wlzhang@njust.edu.cn

biwentao@njnu.edu.cn

Received Date: 20 October 2025
Revised Date: 15 December 2025
Accepted Date: 29 December 2025
Available Online: 29 December 2025

Figures(5)

Conductive eutectogels based on deep eutectic solvents (DESs) represent a promising platform for flexible electronics, addressing key limitations of conventional hydrogels such as freezing and unstable water content. Here, we develop a multi-network eutectogel (CML) through molecular integration of host–guest DESs and type Ⅳ DESs, composed of β-cyclodextrin, L-(-)-malic acid, and LiCl. The synergistic dynamic hydrogen-bond network and host–guest interactions endow the gel with tunable mechanical strength (Young's modulus: 39.35 MPa to 0.04 MPa), strong adhesion, and autonomous self-healing at low temperatures, while the ion-conducting network ensures high electrical conductivity. The CML eutectogel performs as a high-sensitivity strain and pressure sensor capable of detecting subtle human motions, and exhibits remarkable temperature sensitivity (2.37% per degree in the 34–42 ℃ range). Moreover, its intrinsic fluorescence under 365 nm light enables applications in information encryption and anti-counterfeiting. This multifunctional eutectogel demonstrates great potential for advanced wearable electronics and intelligent systems.
- Deep eutectic solvent,
- Eutectogel,
- Host-guest interaction,
- Flexible sensor,
- Smart fluorescent materials
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