Investigation on the performance parameters of surface activated nio acetone gas sensor for diabetes detection

Abstract

Noninvasive disease detection methods are becoming more popular, with researchers newline newlinefocusing on breath analyzers due to the disadvantages of conventional disease detec- newlinetion methods like bulkiness, high cost, and painful, invasive techniques. Endogenous newline newlinevolatile organic molecules (VOCs) found in human breath are called biomarkers newlineand are utilized to identify various disorders. A biomarker linked to the disease of newlinediabetes mellitus is acetone. Human breath acetone levels between 0.3 and 1.8 ppm newlinesuggest a healthy person, whereas levels above 1.8 ppm indicate diabetes. Metal newline newlineoxide semiconductor gas sensors are frequently utilized for breath analyzer applica- newlinetions. This research aims to create a sensitive and focused acetone biomarker sensor newline newlinefor the early diagnosis of diabetes. Finite element analysis was used in the first phase newlineto analyze the performance of a metal oxide sensor toward acetone gas. Acetone newlinewas detected using nickel oxide (NiO), which was used as the sensing material. newlineFor gas detection, a metal oxide semiconductor needs a high operating temperature newlinesupplied by a microplate. The microplate s various shapes and heater material were newlinesimulated. The sensitivity to multiple quantities of acetone gas was examined using newlinea performance analysis of a NiO sensor, and experimental data confirmed the results. newlineCreating a function that correlates the relationship between concentration, resistance, newlineand temperature is another impressive feature of this study. A circuit is also replicated newlinein the Proteus 8 environment to provide a simple way to estimate diabetes risk and newlineto show the amount of acetone in the breath. The kinetics underlying the thermal newlineactivation of the NiO sensor will be optimized and examined in the following stage of newlinethe research. NiO showed a high response toward acetone when thermally activated newline newlineat 300 oC. To reduce the power consumption and minimize the lithography com- newlineplexity, optical activation was done for further analysis. newline