{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T15:24:28Z","timestamp":1776785068923,"version":"3.51.2"},"reference-count":33,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2019,4,13]],"date-time":"2019-04-13T00:00:00Z","timestamp":1555113600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper presents the feasibility of a fully inkjet-printed, microwave flexible gas sensor based on a resonant electromagnetic transducer in microstrip technology and the impact of the printing process that affects the characteristics of the gas sensor. The sensor is fabricated using silver ink and multi-wall carbon nanotubes (MWCNTs) embedded in poly (3,4-ethylenedioxythiophene) polystyrene (PEDOT: PSS-MWCNTs) as sensitive material for Volatile Organic Compounds (VOCs) detection. Particular attention is paid to the characterization of the printed materials and the paper substrate. The manufacturing process results in a change in relative permittivity of the paper substrate by nearly 20%. Electrical characterization, made in the presence of gas, validates our theoretical approach and the radiofrequency (RF) gas sensor proof of concept.<\/jats:p>","DOI":"10.3390\/s19081768","type":"journal-article","created":{"date-parts":[[2019,4,15]],"date-time":"2019-04-15T11:15:58Z","timestamp":1555326958000},"page":"1768","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["CNT-Based Inkjet-Printed RF Gas Sensor: Modification of Substrate Properties during the Fabrication Process"],"prefix":"10.3390","volume":"19","author":[{"given":"Julien","family":"George","sequence":"first","affiliation":[{"name":"University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aymen","family":"Abdelghani","sequence":"additional","affiliation":[{"name":"University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Prince","family":"Bahoumina","sequence":"additional","affiliation":[{"name":"University of Bordeaux, Bordeaux INP\/CNRS, IMS UMR 5218, F-33400 Talence, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olivier","family":"Tantot","sequence":"additional","affiliation":[{"name":"University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9928-0994","authenticated-orcid":false,"given":"Dominique","family":"Baillargeat","sequence":"additional","affiliation":[{"name":"University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kamel","family":"Frigui","sequence":"additional","affiliation":[{"name":"University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0722-2979","authenticated-orcid":false,"given":"St\u00e9phane","family":"Bila","sequence":"additional","affiliation":[{"name":"University of Limoges, CNRS, XLIM UMR 7252, F-87060 Limoges, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7975-6502","authenticated-orcid":false,"given":"Hamida","family":"Hallil","sequence":"additional","affiliation":[{"name":"University of Bordeaux, Bordeaux INP\/CNRS, IMS UMR 5218, F-33400 Talence, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9004-7966","authenticated-orcid":false,"given":"Corinne","family":"Dejous","sequence":"additional","affiliation":[{"name":"University of Bordeaux, Bordeaux INP\/CNRS, IMS UMR 5218, F-33400 Talence, France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,4,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Courbat, J., Briand, D., Yue, L., Raible, S., and De Rooij, N.F. 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