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Biosens Bioelectron

Title:		An electronic nose based on 2D group VI transition metal dichalcogenides/organic compounds sensor array
Author(s):		Gaggiotti S; Scroccarello A; Della Pelle F; Ferraro G; Del Carlo M; Mascini M; Cichelli A; Compagnone D;
Address:		"Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy; Department of Science, University of Pescara-Chieti, Viale Pindaro 42, 65127, Pescara, Italy. Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy. Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy. Electronic address: fdellapelle@unite.it. Department of Chemistry 'Ugo Schiff' and Consorzio per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy. Department of Science, University of Pescara-Chieti, Viale Pindaro 42, 65127, Pescara, Italy. Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus 'Aurelio Saliceti' Via R. Balzarini 1, 64100, Teramo, Italy. Electronic address: dcompagnone@unite.it"
Journal Title:		Biosens Bioelectron
Year:		2022
Volume:		20220926
Issue:
Page Number:		114749 -
DOI:		10.1016/j.bios.2022.114749
ISSN/ISBN:		1873-4235 (Electronic) 0956-5663 (Linking)
Abstract:		"Rapid volatile organic compounds (VOCs) detection is a hot topic today; in this framework nanomaterials and their tailorable chemistry offer a plethora of compelling opportunities. In this work, Group VI transition metal dichalcogenides (TMDs, i.e., MoS(2), WSe(2), MoSe(2,) and WSe(2)) were functionalized with organic compounds (ellagic acid, tannic acid, catechin, and sodium cholate) able to assist their sonochemical exfoliation in water. The 16 resulting water-dispersed 2D hybrid inorganic/organic TMDs resulted in a few-layer nanoflakes conformation and were used to modify quartz crystal microbalances (QCMs) to equip an e-nose for VOCs determination. The ability of the sensors for the detection of VOCs was assessed on alcohols, terpenes, esters, and aldehydes; the responses were significatively different, confirming the synergic effect of TMD and the organic compound in the interaction with VOCs. The 16 sensors exhibited quantitative responses for VOCs (R(2)>/=0.978) with fast signals recovery (<100 s) and repeatable (RSD
Keywords:		Electronic Nose *Volatile Organic Compounds Molybdenum/chemistry Sodium Cholate *Catechin *Biosensing Techniques *Transition Elements/chemistry Water/chemistry Aldehydes Tannins Terpenes Gas sensors Liquid-phase exfoliation Nanomaterials Polyphenols Volat;
Notes:		"MedlineGaggiotti, Sara Scroccarello, Annalisa Della Pelle, Flavio Ferraro, Giovanni Del Carlo, Michele Mascini, Marcello Cichelli, Angelo Compagnone, Dario eng England 2022/10/03 Biosens Bioelectron. 2022 Dec 15; 218:114749. doi: 10.1016/j.bios.2022.114749. Epub 2022 Sep 26"