Related Experiment Video
Updated: Aug 11, 2025
08:25
Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
Published on: August 27, 2021
2.6K
Extreme-environment-adapted eutectogel mediated by heterostructure for epidermic sensor and underwater communication
Chunxiao Chai1, Lin Ma1, Yiran Chu1
1Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Jinan 250100, China.
Journal of Colloid and Interface Science
|February 9, 2023
Summary
A novel eutectogel, an intrinsically conductive material, demonstrates excellent stability in both dry and underwater conditions. This adaptable gel maintains conductivity and mechanical integrity, paving the way for advanced wearable electronics.
Area of Science:
- Materials Science
- Polymer Chemistry
- Wearable Electronics
Background:
- Gel-based ion conductors are crucial for wearable electronics due to their flexibility and conductivity.
- Adapting these gels for both underwater and dry environments presents significant challenges.
Purpose of the Study:
- To design and synthesize an intrinsically conductive eutectogel with enhanced anti-swelling and anti-drying properties.
- To evaluate the stability and performance of the eutectogel in diverse environmental conditions for sensor applications.
Main Methods:
- One-step radical polymerization of acrylic acid and 2,2,2‑trifluoroethyl methacrylate in a binary deep eutectic solvents (DESs) medium.
- Characterization of the eutectogel's mechanical properties, conductivity, and stability in various solutions and organic solvents.
- Assembly and testing of the eutectogel as a smart sensor for performance evaluation in air and underwater.
Main Results:
- The eutectogel exhibits synergistic hydrophilic/hydrophobic heteronetworks, ensuring integrity stability in liquid environments.
- Maintained mechanical properties and conductivity after one month immersion in diverse solutions (salt, alkaline, acid) and organic solvents.
- Achieved high conductivity (93 mS/m), anti-drying, and antibacterial properties inherited from DESs.
- Demonstrated stable sensor performance in air and underwater with a 1s response time, high sensitivity (GF=1.991), and excellent reproducibility (500 cycles at 70% strain).
Conclusions:
- The developed eutectogel offers a robust solution for wearable electronics operating in challenging, variable environments.
- The binary cooperative complementary principle provides a valuable strategy for developing next-generation conductive soft materials.
- The eutectogel's multifunctionality and simple preparation highlight its potential for advanced smart sensor applications.
