CNF–HEC Nanocellulose Composite Substrate / Cellulose e-skin
A biodegradable CNF–HEC nanocellulose composite substrate developed by VTT for recyclable flexible printed electronics. In the ECG patch demonstrator, the single-use skin-contact patch is made from nanocellulose and printed with carbon ink conductors and ECG sensing electrodes. The electronic module is removable and reusable, making the case valuable as both a bio-based material application and a modular end-of-life design strategy.
- Family
- Bio-based Flexible Electronics Substrate
- Primary use
- Biodegradable wearable ECG patch (VTT demonstrator)
- Biodegradation
- Biodegradable nanocellulose-based single-use skin patch; repulpable in water through a controlled process
- Electrical Performance
- Printed carbon ink conductors and ECG sensing electrodes on nanocellulose substrate
- Water Resistance
- Water-resistant, flexible cellulose-based substrate suitable for skin-contact wearable applications
- TRL · BioNexus assessment
- TRL 7
How It's Made
CNF (cellulose nanofibril) + HEC (hydroxyethyl cellulose) nanocomposite film; carbon-ink printed conductors and electrodes; removable/reusable electronic module