Laser-Based Odor Analysis Tested for Disease Detection
Researchers have demonstrated a new spectroscopic method to identify diseases through human body odor compounds.
Updated on Sept. 29, 2026 in Diseases — General
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Scientists have tested a laser-based photoacoustic spectroscopy technique to identify volatile organic compounds present in body odor. The study successfully analyzed odor patterns to distinguish between healthy individuals and those with conditions such as Parkinson's disease and COVID-19.
Why it matters
Current methods for analyzing volatile organic compounds in the body are complex and time-consuming, requiring significant resources. This new approach could simplify preliminary medical screenings by providing a faster diagnostic alternative.
The study utilized a sample of 24 participants divided into four condition groups, with 3 individuals re-tested after two weeks. Researchers employed widely tunable quantum cascade lasers and a photoacoustic detector to identify spectral fingerprints.
The players
Fraunhofer Institute for Integrated Circuits IIS
This German research organization focuses on applied sciences and the development of microelectronic systems.
Technical University of Dresden
This public research university located in Dresden is known for its engineering and natural sciences programs.
SMELLODI project
This research initiative receives funding from the European Union to investigate olfactory-based diagnostic technologies.
The details
Researchers collected swabs from the anterior nasal cavity, navel, and outer ear to record spectral data from organic compounds. The system uses a specialized spectrometer to detect differences in body odor patterns that correspond to specific health conditions.
Timeline
The findings were published in the journal Scientific Reports in 2026.
The Big Picture
This study advances the objectives of the European Union's SMELLODI project, which aims to develop sensory systems for disease detection. The research represents a shift from traditional laboratory-heavy diagnostics toward compact spectroscopic identification.
This technology is currently in the experimental stage and is not yet available for clinical use. Once fully developed, it could enable faster, non-invasive preliminary screenings for patients in routine healthcare settings.
The takeaway
This research suggests that body odor could eventually serve as a reliable biological indicator for identifying various health conditions. Future studies will determine if this laser-based method remains accurate when tested on larger, more diverse populations.
Further reading
Learn more about the latest innovations in medical diagnostic technologies in the Diseases — General section.
More information
Review the full findings and technical methodology in the scientific study publication link.
Source note: This article includes information reported by Informationdienst Wissenschaft e.V. - idw.
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Should non-invasive body odor analysis be prioritized over traditional, more invasive medical diagnostic tests?
