RBFNN-Based PPy/GaN sensor array with wide dynamic range and sub-ppb detection for accurate ammonia identification in human exhaled breath
Taiyuan University of Technology · Chinese PLA General Hospital · +3 more institutions
Abstract
Detecting ammonia (NH3) in human breath is vitally important for early warning and disease detection. Polymer composite nanomaterials, which serve as high-performance NH3 gas sensors, have become a prominent research focus in this field. In this study, polypyrrole (PPy) and various gallium nitride (GaN) nanostructures were selected for synthesis. PPy/GaN gas sensors were successfully fabricated by employing the precisely controllable metal-organic chemical vapor deposition (MOCVD) process in conjunction with in situ oxidative polymerization methods. The gas sensing performance of the sensors was systematically analyzed. The PPy/GaN-1 sensor demonstrated an ultra-wide detection range for NH3 (100 ppb–1000 ppm)…
Citation impact
- FWCI
- 37.02
- Percentile
- 99%
- References
- 49
Authors
11- ZJZhengyang JiaCorresponding
Taiyuan University of Technology
- WWWeili Wang
Chinese PLA General Hospital, Shanxi Provincial Cancer Hospital, Cancer Hospital of Chinese Academy of Medical Sciences, Ministry of Industry and Information Technology
- DHDan Han
Taiyuan University of Technology
- LYLianao Yan
Taiyuan University of Technology
- JGJing Guang
Taiyuan University of Technology
Topics & keywords
- Breath gas analysis
- Polypyrrole
- Chemical vapor deposition
- Electronic nose
- Sensor array
- Wide dynamic range
- Ammonia gas
- Dynamic range