Design Optimization of a Photoacoustic System for Gas Detection in Exhaled Breath |
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| Marco Muzzarelli, Giovanni Gibertoni, Daniele Goldoni, Ali Marzdar, Enza Panzardi, Marco Grassi, Piero Malcovati, Marco Mugnaini, Luigi Rovati |
- Abstract:
- Exhaled breath analysis is a promising non-invasive approach for detecting disease-related biomarkers, including nitrogen dioxide (NO₂), which is associated with airway inflammation. A compact photoacoustic spectroscopy (PAS) system was developed using a 405 nm LED source and a resonant acoustic chamber optimized for NO₂ detection. Focused optical excitation enhances localized absorption, generating an acoustic signal detected by a MEMS microphone. The system demonstrated a good response to 50 ppm gas variation, supporting its suitability for low-cost breath analysis applications.
- Download:
- IMEKO-TC2-2025-004.pdf
- DOI:
- 10.21014/tc2-2025.004
- Event details
- IMEKO TC:
- TC2
- Event name:
- IMEKO TC2 PhotoMet 2025
- Title:
2025 IMEKO TC2 International Symposium on Modern Photonic Metrology
PhotoMet 2025 - Shaping the Future of Photonic Metrology
- Place:
- Modena, ITALY
- Time:
- 01 September 2025 - 03 September 2025