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Yin He1,2,3,4, Jianjun Su1,2, Xin Niu2,5
1School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
ACS Sensors
|September 2, 2025
Summary
This study introduces a novel corespun yarn ion sensor that simplifies flexible sensor design by integrating electrodes into the core. This wearable sensor accurately detects pressure and temperature in real-time.
Area of Science:
- Materials Science
- Sensor Technology
- Textile Engineering
Background:
- Flexible sensors are crucial for wearable devices and medical monitoring.
- Conventional sensors often have complex structures due to external electrodes, limiting flexibility.
- There is a need for simplified, integrated sensor designs.
Purpose of the Study:
- To develop a simplified flexible sensor with integrated electrodes.
- To create a corespun yarn ion sensor using a novel fabrication method.
- To demonstrate the sensor's capability for real-time pressure and temperature detection.
Main Methods:
- Fabrication of a corespun yarn ion sensor via conjugated electrospinning.
- Utilizing a silver-plated yarn core and P(VDF-HFP)-IL nanofiber sheath.
- Integration into fabrics for electromyographic (EMG) monitoring using electrical impedance tomography (EIT).
Main Results:
- Achieved real-time, in situ detection of pressure and temperature.
- Reported pressure sensitivity of 2.30 kPa⁻¹ (0-100 kPa) and temperature sensitivity of 0.517 °C⁻¹ (24-55 °C).
- Demonstrated excellent cyclic stability (>4000 cycles) and moisture permeability.
Conclusions:
- The developed corespun yarn ion sensor offers a simplified, flexible, and integrated solution.
- This technology enables potential for advanced wearable health monitoring and smart textiles.
- The sensor's ability to map EMG parameters via EIT highlights its practical application in textiles.
