Photo assisted amperometric sensing of electrospun tungsten oxide nanofibers

Abstract

Monitoring and control of volatile organic compounds have become increasingly important for humans as well as for environment because of their diverse applications spanning from industrial chemical reagent to patient condition monitoring using breath analysis. For instance, exposure to low concentration of volatile organic compounds i.e. acetone, even in the range of few parts per million can cause suffocation, and nervous system disorder. Moreover, acetone is also a biomarker for type-1 diabetes and its concentration more than 1.8 ppm is an indication of diabetes compared to 0.3 – 0.9 ppm for healthy person. Nanotechnology has a significant impact on gas sensing enabling the development of nanostructure materials with high sensitivity and stability. The aim of this research was the development of low-cost miniaturised breath analyser for diabetics detection by employing nanomaterials as a sensing layer. That was achieved successfully using metal oxide nanofibers.