A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors
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 sele...
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| Format: | Article |
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MDPI AG
2024-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/7/2174 |
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| author | Paolo Papa Emiliano Zampetti Fabricio Nicolas Molinari Fabrizio De Cesare Corrado Di Natale Giovanna Tranfo Antonella Macagnano |
| author_facet | Paolo Papa Emiliano Zampetti Fabricio Nicolas Molinari Fabrizio De Cesare Corrado Di Natale Giovanna Tranfo Antonella Macagnano |
| author_sort | Paolo Papa |
| collection | DOAJ |
| description | 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–light 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<sup>®</sup>). 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. |
| first_indexed | 2024-04-24T10:34:28Z |
| format | Article |
| id | doaj.art-4c99b7deb625435489423483f7044045 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-24T10:34:28Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4c99b7deb625435489423483f70440452024-04-12T13:26:24ZengMDPI AGSensors1424-82202024-03-01247217410.3390/s24072174A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid VaporsPaolo Papa0Emiliano Zampetti1Fabricio Nicolas Molinari2Fabrizio De Cesare3Corrado Di Natale4Giovanna Tranfo5Antonella Macagnano6Institute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, ItalyInstitute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, ItalyInstitute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, ItalyInstitute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, ItalyDepartment of Electronic Engineering (EED), University of Tor Vergata, 00133 Rome, RM, ItalyDepartment of Medicine, Epidemiology, Occupational and Environmental Hygiene (DIMEILA)-INAIL, 00144 Monteporzio Catone, RM, ItalyInstitute of Atmospheric Pollution Research (IIA)-CNR, 00010 Montelibretti, RM, ItalyAn 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–light 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<sup>®</sup>). 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.https://www.mdpi.com/1424-8220/24/7/2174acetic acid detectionelectrospun nanocomposite nanofibersmesoporous grapheneselective sensorportable sensing tool |
| spellingShingle | Paolo Papa Emiliano Zampetti Fabricio Nicolas Molinari Fabrizio De Cesare Corrado Di Natale Giovanna Tranfo Antonella Macagnano A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors Sensors acetic acid detection electrospun nanocomposite nanofibers mesoporous graphene selective sensor portable sensing tool |
| title | A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors |
| title_full | A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors |
| title_fullStr | A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors |
| title_full_unstemmed | A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors |
| title_short | A Polyvinylpyrrolidone Nanofibrous Sensor Doubly Decorated with Mesoporous Graphene to Selectively Detect Acetic Acid Vapors |
| title_sort | polyvinylpyrrolidone nanofibrous sensor doubly decorated with mesoporous graphene to selectively detect acetic acid vapors |
| topic | acetic acid detection electrospun nanocomposite nanofibers mesoporous graphene selective sensor portable sensing tool |
| url | https://www.mdpi.com/1424-8220/24/7/2174 |
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