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Metal Oxide Gas Sensors to Study Acetone Detection Considering Their Potential in the Diagnosis of Diabetes: A Review

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MOLECULES
卷 28, 期 3, 页码 -

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MDPI
DOI: 10.3390/molecules28031150

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acetone; volatile organic compounds (VOCs); gas sensors; metal oxide (MOx); micro; nanostructures; diabetes

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Metal oxide (MOx) gas sensors have attracted considerable attention for their potential in detecting toxic gases and volatile organic compounds (VOCs). They are expected to play a key role in various fields such as home and public security, environmental monitoring, chemical quality control, and medicine. In particular, the detection of acetone vapors using MOx-type sensors shows promise for noninvasive medical diagnosis, such as in diabetic patients.
Metal oxide (MOx) gas sensors have attracted considerable attention from both scientific and practical standpoints. Due to their promising characteristics for detecting toxic gases and volatile organic compounds (VOCs) compared with conventional techniques, these devices are expected to play a key role in home and public security, environmental monitoring, chemical quality control, and medicine in the near future. VOCs (e.g., acetone) are blood-borne and found in exhaled human breath as a result of certain diseases or metabolic disorders. Their measurement is considered a promising tool for noninvasive medical diagnosis, for example in diabetic patients. The conventional method for the detection of acetone vapors as a potential biomarker is based on spectrometry. However, the development of MOx-type sensors has made them increasingly attractive from a medical point of view. The objectives of this review are to assess the state of the art of the main MOx-type sensors in the detection of acetone vapors to propose future perspectives and directions that should be carried out to implement this type of sensor in the field of medicine.

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