Title |
Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs)
|
---|---|
Published in |
Frontiers in Chemistry, April 2018
|
DOI | 10.3389/fchem.2018.00105 |
Pubmed ID | |
Authors |
Marcello Mascini, Sara Gaggiotti, Flavio Della Pelle, Corrado Di Natale, Sinazo Qakala, Emmanuel Iwuoha, Paola Pittia, Dario Compagnone |
Abstract |
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. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Switzerland | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 58 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 9 | 16% |
Researcher | 6 | 10% |
Student > Master | 5 | 9% |
Other | 4 | 7% |
Professor | 3 | 5% |
Other | 11 | 19% |
Unknown | 20 | 34% |
Readers by discipline | Count | As % |
---|---|---|
Chemistry | 13 | 22% |
Biochemistry, Genetics and Molecular Biology | 5 | 9% |
Chemical Engineering | 3 | 5% |
Engineering | 3 | 5% |
Materials Science | 3 | 5% |
Other | 8 | 14% |
Unknown | 23 | 40% |