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Updated: Jul 10, 2026
10:03
Conformable Wearable Electrodes: From Fabrication to Electrophysiological Assessment
Published on: July 22, 2022
Electrical properties of textile electrodes
Linda Rattfalt1, Michel Chedid, Peter Hult
1Dept. of Biomedical Engineering, Linköping University, Linköping, Sweden. linra@imt.liu.se
Summary
This study evaluated textile electrodes, finding multifilament yarn offers low resistance and stable polarization. Staple fiber yarn provided comparable impedance, while monofilament yarn showed high impedance and potential drift.
Area of Science:
- Materials Science
- Biomedical Engineering
- Textile Engineering
Background:
- Textile electrodes are increasingly used in wearable electronics and medical devices.
- Understanding the impact of yarn construction on electrode performance is crucial for optimizing device design.
- Existing research often focuses on bulk material properties rather than specific yarn structures.
Purpose of the Study:
- To investigate the relationship between textile electrode construction and their electrochemical behavior.
- To compare the electrode impedance and polarization potentials of electrodes made from different yarn types.
- To identify yarn characteristics that lead to optimal performance in textile electrodes.
Main Methods:
- Three types of textile electrodes were fabricated using multifilament yarn (A), staple fiber yarn (B), and monofilament yarn (C).
- Electrode impedance measurements were conducted to assess the electrical characteristics of each electrode type.
- Polarization potentials were measured to evaluate the stability and performance of the electrodes over time.
Main Results:
- Multifilament yarn (A) exhibited favorable low thread resistance and lower polarization potential drift compared to other specimens.
- Staple fiber yarn (B) demonstrated comparable and satisfactory electrode impedance when knitted into electrodes.
- Monofilament yarn (C) displayed high electrode impedance and significant variations in mean polarization potentials due to its conductive material and limited skin contact.
Conclusions:
- The construction technique, specifically the yarn type, significantly influences the performance of textile electrodes.
- Multifilament yarn offers advantages in terms of electrical stability and reduced polarization drift for textile electrode applications.
- Staple fiber yarn presents a viable alternative with acceptable impedance, while monofilament yarn requires further optimization for reliable performance.
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