Proceedings ArticleDOI
Metal Oxide Semiconductor-based gas sensor for Acetone sensing
TLDR
In this article, a portable and sensitive metal oxide semiconductor-based gas sensor with Tungsten Oxide (WO 3 ) thin film as the sensing layer has been used to measure the concentration of Acetone in breath.Abstract:
Acetone constitutes 58% of the volatile organic compounds found in human breath. Acetone in breath is proven to be a biomarker for type I diabetes. Portable and sensitive metal oxide semiconductor-based gas sensor with Tungsten Oxide (WO 3 ) thin film as the sensing layer has been used to measure the concentration of Acetone in breath. Acetone gas being a reducing gas decreases the resistance of thin film when it comes in contact of the sensor. The gas sensor is fabricated, characterized and tested for various concentrations of Acetone gas. A linear calibration curve is obtained on the log scale for predicting any concentration in the novel range of 10 ppm to 300 ppm at 300 °C in the sensor fabricated using RF Magnetron sputtering method. The gas sensor is portable and easy to handle with the chip size of 5mm × 5mm and thin film thickness of 100 nm. The efficiency is optimized by operating it at temperature 300 °C with minimum response time and recovery timeread more
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Journal ArticleDOI
Selective determination of ammonia, ethanol and acetone by reduced graphene oxide based gas sensors at room temperature
Raj Kumar,Ruma Ghosh +1 more
TL;DR: In this article, two resistive sensors based on reduced graphene oxide (RGO) and RGO- rosebengal (RB) composites were used for the selective determination of three organic vapors.
Journal ArticleDOI
Substitutional doping of WO3 for Ca-ion based supercapacitor
V.C. Lokhande,Tanveer Hussain,Tanveer Hussain,Abhijeet R. Shelke,Abhishek C. Lokhande,Taeksoo Ji +5 more
TL;DR: In this paper, the effect of doping on the performance of tungsten oxide (WO3) based supercapacitor was analyzed in different electrolytes (H+, Li, Na+, Ca2+ and Al3+).
Journal ArticleDOI
Metal Oxide Gas Sensors to Study Acetone Detection Considering Their Potential in the Diagnosis of Diabetes: A Review
TL;DR: In this article , a review of the state of the art of the main MOx-type sensors in the detection of acetone vapors is presented to propose future perspectives and directions that should be carried out to implement this type of sensor in the field of medicine.