Related Experiment Video
Updated: Jun 26, 2026
09:18
Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique
Published on: May 3, 2015
Gradient-Microstructure Synergy for Self-Powered Ionic Skins with Ultrahigh Sensitivity
Guotong Sun1, Wenxin Fan1, Hongen Chen1
1College of Materials Science and Engineering, Key Laboratory of Marine Bio-Based Fibers of Shandong Province, Key Laboratory of Shandong Provincial Universities for Advanced Fibers and Composites, Qingdao University, Qingdao 266071, P. R. China.
ACS Applied Materials & Interfaces
|June 25, 2026
Summary
Researchers developed highly sensitive self-powered ionic skins using a gradient-microstructure synergy strategy. This innovation enhances the detection of subtle pressure changes for advanced Internet of Things applications.
Area of Science:
- Materials Science
- Nanotechnology
- Sensors
Background:
- Existing ionic skins lack sensitivity for detecting subtle pressure variations.
- Energy-efficient, self-powered ionic skins are crucial for Internet of Things (IoT) and artificial intelligence (AI).
Purpose of the Study:
- To engineer ionogels with enhanced sensitivity for self-powered ionic skins.
- To develop a versatile gradient-microstructure synergy (GMS) strategy for improved pressure sensing.
Main Methods:
- Sequential construction of sharp charge gradients and surface wrinkles using UV polymerization and mechanical stretching.
- Fabrication of wrinkled gradient ionogels for amplified interfacial potential variations.
Main Results:
- Achieved ultrahigh sensitivity of 368.32 kPa⁻¹ in self-powered mode, surpassing previous records.
- Demonstrated exceptional sensing stability and mechanical properties.
- Enabled real-time detection of human motions, physiological activities, and vibrations.
Conclusions:
- The GMS strategy provides a robust platform for high-performance self-powered ionic skins.
- The developed ionic skins facilitate practical deployment in various sensing applications.
- This work addresses the limitations of current ionic skin sensitivity and power requirements.
