ArticlePhotoacoustics2022
Photoacoustic heterodyne breath sensor for real-time measurement of human exhaled carbon monoxide.
Article in Photoacoustics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 25 citations in OpenAlex.
- Rapid photoacoustic trace gas sensor for online end-tidal CO monitoring in exhaled breath.Photoacoustics · 2026Article
- Hydrogen sulfide in precision medicine: connecting basic science, sensing, and clinical application.Medical gas research · 2026Review
- Highly Sensitive CO-LITES Sensor Based on a Tapered Fiber Focusing and a Fiber-Coupled MPC.Sensors (Basel, Switzerland) · 2026Article
- Heterodyne photoacoustic gas sensing with real-time resonance tracking in high-Photoacoustics · 2026Article
- Detecting parts-per-billion carbon monoxide with an ultra-enhanced near-infrared photoacoustic sensor.Photoacoustics · 2026Article
- Gas spectroscopy - Editorial special issue photoacoustics.Photoacoustics · 2023Article
- Continuous real-time monitoring of carbon dioxide emitted from human skin by quartz-enhanced photoacoustic spectroscopy.Photoacoustics · 2023Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A breath sensor for real-time measurement of human exhaled carbon monoxide is reported. This breath sensor is based on a novel photoacoustic heterodyne gas sensing technique, which combines the conventional photoacoustic spectroscopy with the beat-frequency detection algorithm, thus offering a fast response time and a convenient optical alignment, as well as eliminating the needs for frequency calibration and wavelength locking. The principle of photoacoustic heterodyne gas sensing was explained in detail. The performance of the photoacoustic heterodyne breath sensor was evaluated in terms of minimum detection limit, response time, and linearity. The exhaled carbon monoxide levels of eight volunteers were measured and the results demonstrate the reliability and feasibility of this breath sensor.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.