# Advancements and Prospects of Electronic Nose in Various Applications: A Comprehensive Review
## 1 Introduction
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**Title of the Review** & **Focus** & **Content** & **Year** & **Ref** \\ \hline [PERSON] et al.: & Detecting microbial & This paper explores the capabilities of electronic noses (e-noses) in detecting volatile compounds related to microbial & 2004 & [17] \\ Disease Diagnostics & electronic noses & infections and discusses their potential applications in early & \\  & & disease diagnosis and disease epidemiology monitoring. & \\ \hline [PERSON] et al.: & & This paper discusses the use of chemical sensors in an array & \\ Chemical Sensors for & & format for the analysis of volatile organic compounds, leading to the creation of “electronic noses.” It covers the various types & 2005 & [18] \\ Electronic & & of gas sensors used, their transducer principles, and current & \\  & & technological advancements. & \\ \hline  & & The paper discusses how e-noses have enabled the analysis of & \\  & & odors. It highlights their applications in different fields, & \\  & & particularly in medicine and the food industry, wherein rapid & \\  & & detection methods are crucial. The paper also emphasizes the & \\  & & use of e-noses for classifying and quantifying bacteria and & \\  & & medical diagnosis and & fungi, with the aim of achieving accurate medical diagnoses & \\  & & and censoring food quality control & \\  & & bacterial and fungal species producing volatile compounds & \\  & & linked to infectious diseases or food spoilage. Overall, the & \\  & & paper suggests the potential of e-nose technology in both & \\  & & medical diagnostics and food management. & \\ \hline  & & The authors examine emerging e-nose technologies, & \\  & & encompassing optical sensor systems, mass spectrometry (MS), & \\  & & ion mobility spectrometry, gas chromatography (GC), infrared & \\  & & spectroscopy, and specialized substance-class-specific sensors. & \\  & & They explore these technologies’ applications across diverse & \\  & & domains, expanding the conventional definition of ‘e-nose.’ & \\  & & The paper concludes by outlining future trends in three key & \\  & & areas: sample handling, filtration, analyte gas separation, and & \\  & & data analysis. & \\ \hline [PERSON] et al.: & & The review covers various aspects of this chemical sensing & \\  & & field, including the synthesis of 1-D metal oxide & \\  & & nanostructures, the electronic properties of nanowire-based & \\  & & detection of industrial & FETs, and their behavior in chemical sensing applications. It & \\  & & also discusses the recent advancements in electronic nose & \\  & & systems based on metal oxide nanowires, highlighting their & \\  & & potential in enhance sensing selectivity. & \\ \hline [PERSON] et al.: & & This paper reviews the evolution of electronic nose & \\  & & technologies over the past two decades, up to the year of & \\  & & publication, and explores their diverse applications across & \\  & & various industries. It emphasizes significant advancements in & \\  & & sensors, materials, software, and microcircuitry, which have & \\  & & led to the emergence of novel sensor types and applications. & \\ \hline [PERSON] et al.: & & The review covers various applications of e-noses in food and & \\  & & beverage quality control, including freshness determination, & \\  & & contaminant and adulteration identification, and analysis of & \\  & & & diverse food and beverage categories such as meat, fish, \\  & & grains, alcoholic and non-alcoholic drinks, fruits, dairy & \\  & & products, oils, nuts, vegetables, and eggs. & \\ \hline [PERSON] et al.: & & This review discusses the rapid development of electronic & \\  & & nose technologies in the biomedical field. It covers various & \\  & & applications in healthcare, including diagnostics, pathology, & \\  & & drug delivery, and patient condition monitoring. The paper & \\  & & highlights the potential of e-nose technologies to address & \\  & & complex biomedical challenges and improve & \\  & & healthcare services. & \\ \hline \hline \end{tabular}
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