| Title: | Advancements in Microfabricated Gas Sensors and Microanalytical Tools for the Sensitive and Selective Detection of Odors |
| Author(s): | Olle EP; Farre-Llados J; Casals-Terre J; |
| Address: | "Department of Mechanical Engineering, Polytechnical University of Catalonia (UPC), MicroTech Lab, Colom street 11, 08222 Terrassa, Spain. SEAT S.A., R&D Department in Future Urban Mobility Concepts, A-2, Km 585, 08760 Martorell, Spain" |
| ISSN/ISBN: | 1424-8220 (Electronic) 1424-8220 (Linking) |
| 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" |
| Keywords: | gas chromatography gas sensors lab-on-a-chip (LOC) microelectromechanical systems (MEMS) microfluidic devices nanomaterials volatile organic compounds (VOCs); |
| Notes: | "PubMed-not-MEDLINEOlle, Enric Perarnau Farre-Llados, Josep Casals-Terre, Jasmina eng 2018 DI 0102/Departament d'Innovacio, Universitats i Empresa, Generalitat de Catalunya/ I-2020-31 20007/EIT Urban Mobility/ Review Switzerland 2020/09/30 Sensors (Basel). 2020 Sep 24; 20(19):5478. doi: 10.3390/s20195478" |
