P1DH.3 - Tracing multiple breath markers with flame-made electronic noses
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-1 - Sensors for Diagnostics and Healthcare
- Author(s)
- N. Pineau, A. Güntner, S. Pratsinis - Particle Technology Laboratory, ETH Zürich, Zurich (Switzerland)
- Pages
- 661 - 662
- DOI
- 10.5162/IMCS2018/P1DH.3
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
A portable and simple-in-use electronic nose is presented that simultaneously monitors acetone, ammonia and formaldehyde. These compounds are potential breath tracers for fat burn monitoring, kidney failure and lung cancer detection. The array consists of four differently selective and highly sensitive nanostructured metal oxides. Sensing particles are produced by flame spray pyrolysis (FSP) and directly deposited onto silicon wafer-bases microsubstrates with interdigitated electrodes forming highly porous films. This multifunctional microsensor array was tested on simulated breath mixtures with the target tracers at realistic 90% relative humidity. By applying statistical analysis to the sensor responses, an accurate quantification of the target analytes was achieved. As a result, a compact electronic nose is presented that could be applied in portable breath analyzers.