Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs)
In this work a peptide based gas sensor array based of ZnO nanoparticles (ZnONPs) has been realized. Four different pentapeptides molecularly modeled for alcohols and esters having cysteine as a common spacer have been immobilized onto ZnONPs. ZnONPs have been morphologically and spectroscopically c...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2018-04-01
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| Series: | Frontiers in Chemistry |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/article/10.3389/fchem.2018.00105/full |
| _version_ | 1818701498561855488 |
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| author | Marcello Mascini Sara Gaggiotti Flavio Della Pelle Corrado Di Natale Sinazo Qakala Emmanuel Iwuoha Paola Pittia Dario Compagnone |
| author_facet | Marcello Mascini Sara Gaggiotti Flavio Della Pelle Corrado Di Natale Sinazo Qakala Emmanuel Iwuoha Paola Pittia Dario Compagnone |
| author_sort | Marcello Mascini |
| collection | DOAJ |
| description | In this work a peptide based gas sensor array based of ZnO nanoparticles (ZnONPs) has been realized. Four different pentapeptides molecularly modeled for alcohols and esters having cysteine as a common spacer have been immobilized onto ZnONPs. ZnONPs have been morphologically and spectroscopically characterized. Modified nanoparticles have been then deposited onto quartz crystal microbalances (QCMs) and used as gas sensors with nitrogen as carrier gas. Analysis of the pure compounds modeled demonstrated a nice fitting of modeling with real data. The peptide based ZnONPs had very low sensitivity to water, compared to previously studied AuNPs peptide based gas sensors allowing the use of the array on samples with high water content. Real samples of fruit juices have been assayed; stability of the signal, good repeatability, and discrimination ability of the array was achieved. |
| first_indexed | 2024-12-17T15:21:48Z |
| format | Article |
| id | doaj.art-3f4f6ef36dee4301a13232133e997643 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-17T15:21:48Z |
| publishDate | 2018-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-3f4f6ef36dee4301a13232133e9976432022-12-21T21:43:22ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462018-04-01610.3389/fchem.2018.00105323829Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs)Marcello Mascini0Sara Gaggiotti1Flavio Della Pelle2Corrado Di Natale3Sinazo Qakala4Emmanuel Iwuoha5Paola Pittia6Dario Compagnone7Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, ItalyFaculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, ItalyFaculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, ItalyDepartment of Electronic Engineering, University of Roma Tor Vergata, Rome, ItalySensor Lab, Department of Chemistry, University of the Western Cape, Bellville, South AfricaSensor Lab, Department of Chemistry, University of the Western Cape, Bellville, South AfricaFaculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, ItalyFaculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, ItalyIn this work a peptide based gas sensor array based of ZnO nanoparticles (ZnONPs) has been realized. Four different pentapeptides molecularly modeled for alcohols and esters having cysteine as a common spacer have been immobilized onto ZnONPs. ZnONPs have been morphologically and spectroscopically characterized. Modified nanoparticles have been then deposited onto quartz crystal microbalances (QCMs) and used as gas sensors with nitrogen as carrier gas. Analysis of the pure compounds modeled demonstrated a nice fitting of modeling with real data. The peptide based ZnONPs had very low sensitivity to water, compared to previously studied AuNPs peptide based gas sensors allowing the use of the array on samples with high water content. Real samples of fruit juices have been assayed; stability of the signal, good repeatability, and discrimination ability of the array was achieved.http://journal.frontiersin.org/article/10.3389/fchem.2018.00105/fullZnO nanoparticlespeptidesvirtual dockingquartz crystal microbalancesgas sensor array |
| spellingShingle | Marcello Mascini Sara Gaggiotti Flavio Della Pelle Corrado Di Natale Sinazo Qakala Emmanuel Iwuoha Paola Pittia Dario Compagnone Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) Frontiers in Chemistry ZnO nanoparticles peptides virtual docking quartz crystal microbalances gas sensor array |
| title | Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) |
| title_full | Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) |
| title_fullStr | Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) |
| title_full_unstemmed | Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) |
| title_short | Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) |
| title_sort | peptide modified zno nanoparticles as gas sensors array for volatile organic compounds vocs |
| topic | ZnO nanoparticles peptides virtual docking quartz crystal microbalances gas sensor array |
| url | http://journal.frontiersin.org/article/10.3389/fchem.2018.00105/full |
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