Green MXene-bamboo paper electrodes offer flexible, waterproof wearable sensors

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A biodegradable, soft, and conductive MXene-cellulose nanofiber paper electrode integrates Ti3C2Tx nanosheets into bamboo-derived scaffolds, with a porous Ecoflex coating that imparts waterproofing and breathability. The freestanding dry electrode enables high-fidelity EMG sensing, strain and pressure detection, and wireless control of a knee exoskeleton. Upon disposal, the material degrades oxidatively, offering a sustainable route toward scalable, eco-friendly human-machine interfaces. Credit: National Taiwan University

Researchers at National Taiwan University have developed biodegradable MXene–bamboo paper electrodes that combine flexibility, waterproof stability, and tunable conductivity. Encapsulated in a breathable Ecoflex layer, these scalable green electrodes enable wearable sensing, electromyography, and exoskeleton control, offering a sustainable pathway for next-generation assistive technologies.

The biodegradable paper electrodes combine sustainability with , offering a solution to the growing challenge of electronic waste. The study is published in Advanced Science.

These electrodes, made by embedding MXene nanosheets into bamboo-derived cellulose nanofibers, are lightweight, flexible, and inexpensive to produce at scale. A breathable Ecoflex coating provides waterproof protection while preserving durability under repeated use.

The strong bonding between MXene and cellulose ensures  and efficient electron transport, enabling the electrodes to deliver sensitive responses to strain and motion.

Tests showed they can be applied in wearable sensors, muscle activity monitoring, and exoskeleton control, all with excellent stability and low noise.

"This innovation paves the way for green, scalable electronics designed for next-generation wearable and ," said Prof. Tzu-En Lin, the study's corresponding author.

To see article on TechXplore: https://techxplore.com/news/2025-09-green-mxene-bamboo-paper-electrodes.html

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