TP10 - Colorimetric Detection of Cortisol Using an Alginate-Based Biosystem
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster II
- Chapter
- Bio/chemical and Environmental Sensors
- Author(s)
- S. Izaddoust - University of the Basque Country UPV/EHU, Leioa (Spain), L. Basabe-Desmonts, F. Benito-Lopez - University of the Basque Country UPV/EHU, Vitoria-Gasteiz (Spain)
- Pages
- 369 - 370
- DOI
- 10.5162/EUROSENSORS2025/TP10
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
This study highlights an alginate-based biosystem tailored for colorimetric cortisol detection, a vital bi-omarker in stress and health analysis. By integrating alginate beads with blue tetrazolium, the biosystem exhibits a visually detectable colour shift across cortisol concentrations ranging from 10 to 240 µg dL-1.Calibration demonstrates 30 min as the optimal detection time with the highest accuracy. However, the system shows a slight decrease in accuracy for longer detection times, indicating partial instability over time. This innovation shows significant potential for clinical diagnostics and research applications in endocrine health.