Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures
A novel microstrip resonant vapor sensor made from a conductive multiwalled carbon nanotubes/ethylene-octene copolymer composite, of which its sensing properties were distinctively altered by vapor polarity, was developed for the detection of organic vapors. The alteration resulted from the modified...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/1/298 |
| _version_ | 1827698412997312512 |
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| author | Petr Slobodian Pavel Riha Robert Olejnik Jiri Matyas Rostislav Slobodian |
| author_facet | Petr Slobodian Pavel Riha Robert Olejnik Jiri Matyas Rostislav Slobodian |
| author_sort | Petr Slobodian |
| collection | DOAJ |
| description | A novel microstrip resonant vapor sensor made from a conductive multiwalled carbon nanotubes/ethylene-octene copolymer composite, of which its sensing properties were distinctively altered by vapor polarity, was developed for the detection of organic vapors. The alteration resulted from the modified composite electronic impedance due to the penetration of the vapors into the copolymer matrix, which subsequently swelled, increased the distances between the carbon nanotubes, and disrupted the conducting paths. This in turn modified the reflection coefficient frequency spectra. Since both the spectra and magnitudes of the reflection coefficients at the resonant frequencies of tested vapors were distinct, a combination of these parameters was used to identify the occurrence of a particular vapor or to differentiate components of vapor mixtures. Thus, one multivariate MWCNT/copolymer microstrip resonant sensor superseded an array of selective sensors. |
| first_indexed | 2024-03-10T13:29:02Z |
| format | Article |
| id | doaj.art-6b2f8744d98e4a1c99f39656be421104 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T13:29:02Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-6b2f8744d98e4a1c99f39656be4211042023-11-21T08:17:03ZengMDPI AGSensors1424-82202021-01-0121129810.3390/s21010298Microstrip Resonant Sensor for Differentiation of Components in Vapor MixturesPetr Slobodian0Pavel Riha1Robert Olejnik2Jiri Matyas3Rostislav Slobodian4Centre of Polymer Systems, University Institute, Tomas Bata University, Tr. T. Bati 5678, 760 01 Zlin, Czech RepublicInstitute of Hydrodynamics, The Czech Academy of Sciences, Pod Patankou 5, 166 12 Prague 6, Czech RepublicCentre of Polymer Systems, University Institute, Tomas Bata University, Tr. T. Bati 5678, 760 01 Zlin, Czech RepublicCentre of Polymer Systems, University Institute, Tomas Bata University, Tr. T. Bati 5678, 760 01 Zlin, Czech RepublicCentre of Polymer Systems, University Institute, Tomas Bata University, Tr. T. Bati 5678, 760 01 Zlin, Czech RepublicA novel microstrip resonant vapor sensor made from a conductive multiwalled carbon nanotubes/ethylene-octene copolymer composite, of which its sensing properties were distinctively altered by vapor polarity, was developed for the detection of organic vapors. The alteration resulted from the modified composite electronic impedance due to the penetration of the vapors into the copolymer matrix, which subsequently swelled, increased the distances between the carbon nanotubes, and disrupted the conducting paths. This in turn modified the reflection coefficient frequency spectra. Since both the spectra and magnitudes of the reflection coefficients at the resonant frequencies of tested vapors were distinct, a combination of these parameters was used to identify the occurrence of a particular vapor or to differentiate components of vapor mixtures. Thus, one multivariate MWCNT/copolymer microstrip resonant sensor superseded an array of selective sensors.https://www.mdpi.com/1424-8220/21/1/298microstrip resonant sensorcarbon nanotubespolymer compositesorganic vaporsvapor mixtures |
| spellingShingle | Petr Slobodian Pavel Riha Robert Olejnik Jiri Matyas Rostislav Slobodian Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures Sensors microstrip resonant sensor carbon nanotubes polymer composites organic vapors vapor mixtures |
| title | Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures |
| title_full | Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures |
| title_fullStr | Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures |
| title_full_unstemmed | Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures |
| title_short | Microstrip Resonant Sensor for Differentiation of Components in Vapor Mixtures |
| title_sort | microstrip resonant sensor for differentiation of components in vapor mixtures |
| topic | microstrip resonant sensor carbon nanotubes polymer composites organic vapors vapor mixtures |
| url | https://www.mdpi.com/1424-8220/21/1/298 |
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