Review on Micro-Gas Analyzer Systems: Feasibility, Separations and Applications

Lussac, Elodie; Barattin, Régis; Cardinaël, Pascal; Agasse, Valerie

doi:10.1080/10408347.2016.1150153

Cited by 39 publications

(20 citation statements)

References 75 publications

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“…Terry and Herman [ 220 ] first reported in 1979 a micro-GC (μGC) that was fabricated on a silicon (Si) wafer. Since then, several μGC systems have been described for field use with rapid response, small footprint, low-cost, low-power, light weight, battery powered, possessing high resolution with narrow columns having low dead volume and improved sensitivity even with small sample volumes [ 221 , 222 ]. Monolithic integration in Si has enabled system-level miniaturization, low-cost fabrication and assembly, with simpler and smaller fluidic connections [ 223 ] ( Figure 20 ).…”

Section: Tools and Techniques For Vocs Collection And Detectionmentioning

confidence: 99%

Volatile Metabolites Emission by In Vivo Microalgae—An Overlooked Opportunity?

et al. 2017

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Fragrances and malodors are ubiquitous in the environment, arising from natural and artificial processes, by the generation of volatile organic compounds (VOCs). Although VOCs constitute only a fraction of the metabolites produced by an organism, the detection of VOCs has a broad range of civilian, industrial, military, medical, and national security applications. The VOC metabolic profile of an organism has been referred to as its ‘volatilome’ (or ‘volatome’) and the study of volatilome/volatome is characterized as ‘volatilomics’, a relatively new category in the ‘omics’ arena. There is considerable literature on VOCs extracted destructively from microalgae for applications such as food, natural products chemistry, and biofuels. VOC emissions from living (in vivo) microalgae too are being increasingly appreciated as potential real-time indicators of the organism’s state of health (SoH) along with their contributions to the environment and ecology. This review summarizes VOC emissions from in vivo microalgae; tools and techniques for the collection, storage, transport, detection, and pattern analysis of VOC emissions; linking certain VOCs to biosynthetic/metabolic pathways; and the role of VOCs in microalgae growth, infochemical activities, predator-prey interactions, and general SoH.

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Section: Tools and Techniques For Vocs Collection And Detectionmentioning

confidence: 99%

Volatile Metabolites Emission by In Vivo Microalgae—An Overlooked Opportunity?

et al. 2017

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“…On-chip technologies enable the creation of fast, precise, simple, portable, low-cost gas sensing platforms with wide application areas, including air quality monitoring [ 127 , 128 ]. The most widely known electrochemical sensing principles, based on charge generation or conductivity changes, are already available on the market and implemented as on-chip products [ 129 ].…”

Section: Emerging On-chip Technologies For the Air Quality Measurementioning

confidence: 99%

Air Quality Effects on Human Health and Approaches for Its Assessment through Microfluidic Chips

Schulze

Gao

Viržonis

et al. 2017

Genes

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Air quality depends on the various gases and particles present in it. Both natural phenomena and human activities affect the cleanliness of air. In the last decade, many countries experienced an unprecedented industrial growth, resulting in changing air quality values, and correspondingly, affecting our life quality. Air quality can be accessed by employing microchips that qualitatively and quantitatively determine the present gases and dust particles. The so-called particular matter 2.5 (PM2.5) values are of high importance, as such small particles can penetrate the human lung barrier and enter the blood system. There are cancer cases related to many air pollutants, and especially to PM2.5, contributing to exploding costs within the healthcare system. We focus on various current and potential future air pollutants, and propose solutions on how to protect our health against such dangerous substances. Recent developments in the Organ-on-Chip (OoC) technology can be used to study air pollution as well. OoC allows determination of pollutant toxicity and speeds up the development of novel pharmaceutical drugs.

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“…Microgas chromatographs (µGC) try to incorporate all the key components employed in large-scale systems in a small and compact device, exploiting the use of new micromachining techniques. However, despite of the high performance showcased by these devices in some applications, they still present some concerns, such as complicated and tedious configurations, short lifetime, high-power consumptions, and high costs of implementation [ 25 , 26 ]. The price of current commercially available µGC devices range from 10 to 100 k€, which still limits their practical implementation in many applications [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Advancements in Microfabricated Gas Sensors and Microanalytical Tools for the Sensitive and Selective Detection of Odors

Ollé

Farré-Lladós

Casals‐Terré

2020

Sensors

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In recent years, advancements in micromachining techniques and nanomaterials have enabled the fabrication of highly sensitive devices for the detection of odorous species. Recent efforts done in the miniaturization of gas sensors have contributed to obtain increasingly compact and portable devices. Besides, the implementation of new nanomaterials in the active layer of these devices is helping to optimize their performance and increase their sensitivity close to humans’ olfactory system. Nonetheless, a common concern of general-purpose gas sensors is their lack of selectivity towards multiple analytes. In recent years, advancements in microfabrication techniques and microfluidics have contributed to create new microanalytical tools, which represent a very good alternative to conventional analytical devices and sensor-array systems for the selective detection of odors. Hence, this paper presents a general overview of the recent advancements in microfabricated gas sensors and microanalytical devices for the sensitive and selective detection of volatile organic compounds (VOCs). The working principle of these devices, design requirements, implementation techniques, and the key parameters to optimize their performance are evaluated in this paper. The authors of this work intend to show the potential of combining both solutions in the creation of highly compact, low-cost, and easy-to-deploy platforms for odor monitoring.

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Review on Micro-Gas Analyzer Systems: Feasibility, Separations and Applications

Cited by 39 publications

References 75 publications

Volatile Metabolites Emission by In Vivo Microalgae—An Overlooked Opportunity?

Volatile Metabolites Emission by In Vivo Microalgae—An Overlooked Opportunity?

Air Quality Effects on Human Health and Approaches for Its Assessment through Microfluidic Chips

Advancements in Microfabricated Gas Sensors and Microanalytical Tools for the Sensitive and Selective Detection of Odors

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