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Advancements in microfabricated gas sensors and microanalytical tools for the sensitive and selective detection of odors

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Perarnau Ollé, EnricMés informacióMés informacióMés informació
Farré Lladós, JosepMés informacióMés informacióMés informació
Casals Terré, JasminaMés informacióMés informacióMés informació
Document typeArticle
Defense date2020-09-24
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
Attribution 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution 3.0 Spain
Abstract
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
CitationPerarnau, E.; Farré-Lladós, J.; Casals-Terré, J. Advancements in microfabricated gas sensors and microanalytical tools for the sensitive and selective detection of odors. "Sensors", 24 Setembre 2020, vol. 20, núm. 19, p. 5478:1-5478:39. 
URIhttp://hdl.handle.net/2117/331866
DOI10.3390/s20195478
ISSN1424-8220
Publisher versionhttps://www.mdpi.com/1424-8220/20/19/5478
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  • Departament d'Enginyeria mecànica - Articles de revista [528]
  • MICROTECH LAB - Microtechnology for the Industry - Articles de revista [18]
  • Doctorat en Enginyeria Mecànica, Fluids i Aeronàutica - Articles de revista [109]
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