Evidence map›Paper›PMID 41809365›Full record

ArticlePhotoacoustics2026

Simultaneous detection of methane and carbon dioxide in human exhalation based on photoacoustic spectroscopy.

Chaofeng Sun, Chunyan Wang, Xiaowen Shen, Chaofan Feng, Xiaogang Xie, Lina Shi, Ruyue Cui, Jialiang Dai, Yaoxin Wang, Marilena Giglio and 7 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Photoacoustics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Chaofeng SunThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Chunyan WangDepartment of Clinical Laboratory, Shanxi Province Cancer Hospital, China.
Xiaowen ShenThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Chaofan FengThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Xiaogang XieDepartment of Clinical Laboratory, Shanxi Province Cancer Hospital, China.
Lina ShiDepartment of Clinical Laboratory, Shanxi Province Cancer Hospital, China.
Ruyue CuiThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Jialiang DaiThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Yaoxin WangThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Marilena GiglioThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Angelo SampaoloThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Pietro PatimiscoThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Liantuan XiaoThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Vincenzo SpagnoloThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Xukun YinSchool of Optoelectronic Engineering, Xidian University, Xi'an 710071, China.
Lei DongThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.
Hongpeng WuThe National Key Laboratory of Photonic Quantum Technology and Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To address the demand for simultaneous multi-gas detection in medical diagnostics, this work develops an online breath sensing system based on photoacoustic spectroscopy (PAS), achieving real-time simultaneous monitoring of multiple exhaled gases using PAS. The system exploits the inherent difference in response amplitude between the fundamental and overtone resonances of the photoacoustic cell, where the highly sensitive fundamental signal is used to detect trace methane (CH

Indexed as

Exhaled human breathNon-invasive diagnosisPhotoacoustic spectroscopySimultaneous detection

Identifiers

PMID41809365
PMCPMC12969386

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.