Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring
Love wave sensors with silver-modified polypyrrole nanoparticles are developed in this work. These systems prove functional at room temperature with enhanced response, sensitivity and response time, as compared to other state-of-the-art surface acoustic wave (SAW) sensors, towards volatile organic c...
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| Format: | Article |
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MDPI AG
2020-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/5/1432 |
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| author | Milena Šetka Fabio A. Bahos Daniel Matatagui Isabel Gràcia Eduard Figueras Jana Drbohlavová Stella Vallejos |
| author_facet | Milena Šetka Fabio A. Bahos Daniel Matatagui Isabel Gràcia Eduard Figueras Jana Drbohlavová Stella Vallejos |
| author_sort | Milena Šetka |
| collection | DOAJ |
| description | Love wave sensors with silver-modified polypyrrole nanoparticles are developed in this work. These systems prove functional at room temperature with enhanced response, sensitivity and response time, as compared to other state-of-the-art surface acoustic wave (SAW) sensors, towards volatile organic compounds (VOCs). Results demonstrate the monitoring of hundreds of ppb of compounds such as acetone, ethanol and toluene with low estimated limits of detection (~3 ppb for acetone). These results are attributed to the use of silver-modified polypyrrole as a second guiding/sensitive layer in the Love wave sensor structure, which provides further chemically active sites for the gas-solid interactions. The sensing of low VOCs concentrations by micro sensing elements as those presented here could be beneficial in future systems for air quality control, food quality control or disease diagnosis via exhaled breath as the limits of detection obtained are within those required in these applications. |
| first_indexed | 2024-04-11T18:20:51Z |
| format | Article |
| id | doaj.art-4f6d9698e2e44a19a175e3e9d66626b0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T18:20:51Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4f6d9698e2e44a19a175e3e9d66626b02022-12-22T04:09:47ZengMDPI AGSensors1424-82202020-03-01205143210.3390/s20051432s20051432Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs MonitoringMilena Šetka0Fabio A. Bahos1Daniel Matatagui2Isabel Gràcia3Eduard Figueras4Jana Drbohlavová5Stella Vallejos6CEITEC—Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech RepublicInstituto de Ciencias Aplicadas y Tecnología (ICAT), Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, MexicoInstituto de Ciencias Aplicadas y Tecnología (ICAT), Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, MexicoInstituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, SpainInstituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, SpainCEITEC—Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech RepublicCEITEC—Central European Institute of Technology, Brno University of Technology, 61200 Brno, Czech RepublicLove wave sensors with silver-modified polypyrrole nanoparticles are developed in this work. These systems prove functional at room temperature with enhanced response, sensitivity and response time, as compared to other state-of-the-art surface acoustic wave (SAW) sensors, towards volatile organic compounds (VOCs). Results demonstrate the monitoring of hundreds of ppb of compounds such as acetone, ethanol and toluene with low estimated limits of detection (~3 ppb for acetone). These results are attributed to the use of silver-modified polypyrrole as a second guiding/sensitive layer in the Love wave sensor structure, which provides further chemically active sites for the gas-solid interactions. The sensing of low VOCs concentrations by micro sensing elements as those presented here could be beneficial in future systems for air quality control, food quality control or disease diagnosis via exhaled breath as the limits of detection obtained are within those required in these applications.https://www.mdpi.com/1424-8220/20/5/1432polypyrrolegas sensorslove wave sensorsvolatile organic compounds |
| spellingShingle | Milena Šetka Fabio A. Bahos Daniel Matatagui Isabel Gràcia Eduard Figueras Jana Drbohlavová Stella Vallejos Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring Sensors polypyrrole gas sensors love wave sensors volatile organic compounds |
| title | Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring |
| title_full | Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring |
| title_fullStr | Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring |
| title_full_unstemmed | Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring |
| title_short | Love Wave Sensors with Silver Modified Polypyrrole Nanoparticles for VOCs Monitoring |
| title_sort | love wave sensors with silver modified polypyrrole nanoparticles for vocs monitoring |
| topic | polypyrrole gas sensors love wave sensors volatile organic compounds |
| url | https://www.mdpi.com/1424-8220/20/5/1432 |
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