Industry-Scalable Reusable Textile Electrodes for Neurostimulation Applications

Area of Science:

• Biomedical Engineering
• Materials Science
• Wearable Technology

Background:

• Neurostimulation uses electrical pulses for medical treatments like pain relief and rehabilitation.
• Current hydrogel electrodes limit long-term, frequent neurostimulation due to placement and reusability issues.

Purpose of the Study:

• To develop and evaluate novel, fully textile-based electrodes for neurostimulation.
• To assess the performance, durability, and comfort of these textile electrodes compared to traditional hydrogel electrodes.

Main Methods:

• Industrial programmable knitting machines were used to create textile electrodes with conductive yarns (stainless steel and PEDOT-coated stainless steel).
• Performance was compared to gel electrodes, measuring impedance, stimulation thresholds, movement recruitment, and sensation.
• Durability was tested through wash cycles and mechanical strain loading.

Main Results:

• Textile electrodes demonstrated comparable performance to hydrogel electrodes across all tested metrics.
• No performance degradation was observed after 30 wash cycles or 1000 stretch cycles.
• Comfortable sensorimotor responses were consistently induced for over six hours of wear.

Conclusions:

• The developed textile electrodes provide a viable, high-performance alternative to hydrogel electrodes for neurostimulation.
• These electrodes are suitable for integration into smart garments and long-term wearable health technologies.
• The findings support the use of textile electrodes for enhanced patient compliance and therapeutic outcomes in neurostimulation.