# Advancements and Prospects of Electronic Nose in Various Applications: A Comprehensive Review
## 1 Introduction
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Title of the Review** & **Focus** & **Content** & **Year** & **Ref** \\ \hline [PERSON] et al.: & & The authors provide an overview of the advancements in & \\ A Brief History of & Sensors, applications & e-nose technology and its application domains over the past 25 & 1994 & [1] \\ Electronic Noses & & years. & \\ \hline [PERSON] et al.: & & The authors conduct a retrospective analysis of the initial & \\ Electronic Nose & & stages of e-nose device development, encompassing their & \\ Development and & & measurement capabilities and their relationship with human & \\ Future Prospects & & olfaction, among other aspects. Furthermore, they anticipate & \\  & & that forthcoming advancements will revolve around sensing & \\  & & materials, improving sensor interference suppression & \\  & & performance, and exploring more intricate applications. & \\ \hline [PERSON] et al.: & & This paper provides an introduction to e-nose sensor & \\ Electronic Noses and & Sensors, applications & technology and statistical data analysis techniques. & \\ their Application & (food analysis) & Additionally, it enumerates various applications of e-noses in & \\ to Food & & the realm of food analysis. & \\ \hline [PERSON] et al.: & & The paper centers on electronic noses as novel analytical tools, & \\ Electronic Noses—A & Sensor technologies & highlighting sensor arrays and their role in creating odor & \\ Mini-Review & & fingerprints. It also discusses sensor technologies, briefly & \\  & & touches on data processing, and concludes with an assessment & \\  & & of the field’s current status and future possibilities. & \\ \hline [PERSON] et al.: & & & \\ Medical Applications & & This article offers an in-depth exploration of electronic nose & \\ of Electronic Nose & & applications & technology and delves into its early investigative applications & \\ Technology: Review & & within the medical field. & \\ of Current Status & & & \\ \hline [PERSON]- & & This review provides an up-to-date assessment of sensor & \\ [PERSON] et al.: & & technology, with a particular focus on its applications in the & \\ Sensors: From & & food industry. It comprehensively examines the design, & \\ Biosensors to the & & technology, and sensing mechanisms of various sensor types, & \\ Electronic Nose & & including electronic noses and electronic tongues for taste & \\  & & detection. Additionally, the review briefly outlines the & \\  & & utilization of statistical procedures in sensor systems. & \\ \hline [PERSON] et al.: & & This review focuses on the use of electronic noses for aroma & \\ The Electronic Nose & & analysis, particularly in the dairy product industry. It covers & \\ Applied to Dairy & & sensor technology advancements, challenges, and emerging & \\ Products: A Review & & techniques. The article highlights the potential benefits of & \\  & & electronic noses in areas like cheese evaluation, milk & \\  & & classification, and bacterial identification. & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Comprehensive overview of e-nose reviews.