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A Sub-ppm Acetone Gas Sensor for Diabetes Detection Using 10 nm Thick Ultrathin InN FETs
Open accessAbstract
An indium nitride (InN) gas sensor of 10 nm in thickness has achieved detection limit of 0.4 ppm acetone. The sensor has a size of 1 mm by 2.5 mm, while its sensing area is 0.25 mm by 2 mm. Detection of such a low acetone concentration in exhaled breath could enable early diagnosis of diabetes for portable physiological applications. The ultrathin InN epilayer extensively enhances sensing sensitivity due to its strong electron accumulation on roughly 5–10 nm deep layers from the surface. Platinum as catalyst can increase output current signals by 2.5-fold (94 vs. 37.5 μA) as well as reduce response time by 8.4-fold (150 vs. 1,260 s) in comparison with bare InN. More, the effect of 3% oxygen consumption due to breath inhalation and exhalation on 2.4 ppm acetone gas detection was investigated, indicating that such an acetone concentration can be analyzed in air.
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Citations
Cited by
Sensors for Volatile Organic Compounds
Khatib, M., & Haick, H. (2022) · ACS Nano · doi:10.1021/acsnano.1c10827 · Cited by 533
Review—Non-Invasive Monitoring of Human Health by Exhaled Breath Analysis: A Comprehensive Review
Das, S., & Pal, M. (2020) · Journal of The Electrochemical Society · doi:10.1149/1945-7111/ab67a6 · Cited by 466
Nanomaterial-Based Sensors for Detection of Disease by Volatile Organic Compounds
Broza, Y. Y., & Haick, H. (2013) · Nanomedicine · doi:10.2217/nnm.13.64 · Cited by 358
Sensing Technologies for Detection of Acetone in Human Breath for Diabetes Diagnosis and Monitoring
Saasa, V., Malwela, T., Beukes, M., Mokgotho, M., Liu, C.-P., & Mwakikunga, B. (2018) · Diagnostics · doi:10.3390/diagnostics8010012 · Cited by 287
Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review
Amiri, V., Roshan, H., Mirzaei, A., Neri, G., & Ayesh, A. I. (2020) · Sensors · doi:10.3390/s20113096 · Cited by 287
Metadata
- Authors
- Kao, K.-W., Hsu, M.-C., Chang, Y.-H., Gwo, S., & Yeh, J. A.
- Venue
- Sensors
- Publisher
- MDPI AG
- Published
- 2012-05-29
- Volume
- 12
- Issue
- 6
- Pages
- 7157-7168
- ISSN
- 1424-8220 (ISSN-L)
- OpenAlex
- W2088967198
- Cited by
- 158
- References
- 0
- FWCI
- 4.27
- Type
- journal article
- Language
- en
- Open access
- gold
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- Kao, K.-W., Hsu, M.-C., Chang, Y.-H., Gwo, S., & Yeh, J. A. (2012). A Sub-ppm Acetone Gas Sensor for Diabetes Detection Using 10 nm Thick Ultrathin InN FETs. Sensors. https://doi.org/10.3390/s120607157
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