8.3.4 - Ultrathin Wearable Thermochromic Tattoo-Based Skin Sensor
- Event
- EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich - Band
- Lectures
- Chapter
- Flexible and Wearable Sensors
- Author(s)
- K. Unger, R. Heer, P. Piller - Silicon Austria Labs GmbH,Graz (Austria)
- Pages
- 273 - 274
- DOI
- 10.5162/eurosensors2026/8.3.4
- ISBN
- 978-3-910600-12-6
- Price
- free
Abstract
Continuous, non-invasive skin temperature monitoring is essential for healthcare and sports applications. We present an ultrathin, skin-conformal thermochromic temporary tattoo sensor. Its flexible, permeable structure enables intimate skin contact and high wearing comfort. The sensor, based on tattoo paper functionalized with a leuco-dye layer, exhibits a thickness of (1.7 ± 0.2) µm and changes color from purple to pink at (27.2 ± 0.5) °C, enabling the detection of abnormal skin temperatures associated with impaired perfusion.