| Title: | Peptide Modified ZnO Nanoparticles as Gas Sensors Array for Volatile Organic Compounds (VOCs) |
| Author(s): | Mascini M; Gaggiotti S; Della Pelle F; Di Natale C; Qakala S; Iwuoha E; Pittia P; Compagnone D; |
| Address: | "Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, Italy. Department of Electronic Engineering, University of Roma Tor Vergata, Rome, Italy. Sensor Lab, Department of Chemistry, University of the Western Cape, Bellville, South Africa" |
| ISSN/ISBN: | 2296-2646 (Print) 2296-2646 (Electronic) 2296-2646 (Linking) |
| 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" |
| Keywords: | ZnO nanoparticles gas sensor array peptides quartz crystal microbalances virtual docking; |
| Notes: | "PubMed-not-MEDLINEMascini, Marcello Gaggiotti, Sara Della Pelle, Flavio Di Natale, Corrado Qakala, Sinazo Iwuoha, Emmanuel Pittia, Paola Compagnone, Dario eng Switzerland 2018/05/02 Front Chem. 2018 Apr 16; 6:105. doi: 10.3389/fchem.2018.00105. eCollection 2018" |
