{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,8]],"date-time":"2025-11-08T23:03:49Z","timestamp":1762643029463,"version":"build-2065373602"},"reference-count":75,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T00:00:00Z","timestamp":1711584000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Istituto Nazionale Assicurazione contro gli Infortuni sul Lavoro (INAIL)"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>An original approach has been proposed for designing a nanofibrous (NF) layer using UV-cured polyvinylpyrrolidone (PVP) as a matrix, incorporating mesoporous graphene carbon (MGC) nanopowder both inside and outside the fibers, creating a sandwich-like structure. This architecture is intended to selectively adsorb and detect acetic acid vapors, which are known to cause health issues in exposed workers. The nanocomposite MGC-PVP-NFs layer was fabricated through electrospinning deposition onto interdigitated microelectrodes (IDEs) and stabilized under UV\u2013light irradiation. To enhance the adhesion of MGC onto the surface of the nanocomposite polymeric fibers, the layer was dipped in a suspension of polyethyleneimine (PEI) and MGC. The resulting structure demonstrated promising electrical and sensing properties, including rapid responses, high sensitivity, good linearity, reversibility, repeatability, and selectivity towards acetic acid vapors. Initial testing was conducted in a laboratory using a bench electrometer, followed by validation in a portable sensing device based on consumer electronic components (by ARDUINO\u00ae). This portable system was designed to provide a compact, cost-effective solution with high sensing capabilities. Under room temperature and ambient air conditions, both laboratory and portable tests exhibited favorable linear responses, with detection limits of 0.16 and 1 ppm, respectively.<\/jats:p>","DOI":"10.3390\/s24072174","type":"journal-article","created":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T12:22:46Z","timestamp":1711628566000},"page":"2174","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors"],"prefix":"10.3390","volume":"24","author":[{"given":"Paolo","family":"Papa","sequence":"first","affiliation":[{"name":"Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4344-5547","authenticated-orcid":false,"given":"Emiliano","family":"Zampetti","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy"}]},{"given":"Fabricio Nicolas","family":"Molinari","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy"},{"name":"National Institute of Industrial Technology (INTI), Buenos Aires B1650WAB, Argentina"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9810-8746","authenticated-orcid":false,"given":"Fabrizio","family":"De Cesare","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy"},{"name":"Department for Innovation in Biological, Agro-food and Forest Systems (DIBAF), University of Tuscia, 01100 Viterbo, VT, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0543-4348","authenticated-orcid":false,"given":"Corrado","family":"Di Natale","sequence":"additional","affiliation":[{"name":"Department of Electronic Engineering (EED), University of Tor Vergata, 00133 Rome, RM, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8973-6046","authenticated-orcid":false,"given":"Giovanna","family":"Tranfo","sequence":"additional","affiliation":[{"name":"Department of Medicine, Epidemiology, Occupational and Environmental Hygiene (DIMEILA)-INAIL, 00144 Monteporzio Catone, RM, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6015-4832","authenticated-orcid":false,"given":"Antonella","family":"Macagnano","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, Italy"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1016\/j.mattod.2020.06.001","article-title":"Smart Polymers and Nanocomposites for 3D and 4D Printing","volume":"40","author":"Falahati","year":"2020","journal-title":"Mater. 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