3.1.2 - Optimized Water-Based Colorimetric Carbon Dioxide Indicators for 455 nm Monolithic LED Emitter-Detector
- Event
- EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich - Band
- Lectures
- Chapter
- Chemical Sensors
- Author(s)
- M. Verdaguer Mallorquí - University of Barcelona,Barcelona (Spain), M. González-Gómez - Universitat de Barcelona,Barcelona (Spain) and Technische Universität Braunschweig,Braunschweig (Germany), C. Fàbrega - University of Barcelona,Barcelona (Spain), J. D. Prades - Technische Universität Braunschweig,Braunschweig (Germany), O. Casals - University of Barcelona,Barcelona (Spain)
- Pages
- 104 - 105
- DOI
- 10.5162/eurosensors2026/3.1.2
- ISBN
- 978-3-910600-12-6
- Price
- free
Abstract
A water-based m-cresol purple carbon dioxide indicator was optimized for sensing with a 455 nm monolithic LED emitter-detector platform. Printed films were evaluated under controlled carbon dioxide atmospheres us-ing a commercial 455 nm LED setup. Single-factor and Design of Experiments studies identified individual and coupled formulation effects and supported selection of an optimized composition. Response models agreed well with an independently prepared formulation, and selected sensing layers produced clear concentration-dependent responses after integration on the monolithic de-vice.