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Sensors 2012, 12(12), 17023-17045; doi:10.3390/s121217023

Nanostructured Metal Oxide Gas Sensors, a Survey of Applications Carried out at SENSOR Lab, Brescia (Italy) in the Security and Food Quality Fields

1
SENSOR, CNR-IDASC, UOS Brescia, Via Branze 45, 25123 Brescia, Italy
2
SENSOR, Dipartimento di Ingegneria dell'Informazione, Università degli Studi di Brescia, Via Valotti 9, 25133 Brescia, Italy
3
DISA, Università di Udine, Via Scienze 208, 33100 Udine, Italy
4
Dipartimento di Scienze Agrarie e degli Alimenti, Università di Modena e Reggio Emilia, Via Amendola 2, 42100 Reggio Emilia, Italy
*
Author to whom correspondence should be addressed.
Received: 26 September 2012 / Revised: 5 December 2012 / Accepted: 6 December 2012 / Published: 12 December 2012
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Italy 2012)
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Abstract

In this work we report on metal oxide (MOX) based gas sensors, presenting the work done at the SENSOR laboratory of the CNR-IDASC and University of Brescia, Italy since the 80s up to the latest results achieved in recent times. In particular we report the strategies followed at SENSOR during these 30 years to increase the performance of MOX sensors through the development of different preparation techniques, from Rheotaxial Growth Thermal Oxidation (RGTO) to nanowire technology to address sensitivity and stability, and the development of electronic nose systems and pattern recognition techniques to address selectivity. We will show the obtained achievement in the context of selected applications such as safety and security and food quality control.
Keywords: metal oxides; chemisresistors; electronic nose; nanowires; thin films; DMMP; chemical warfare agents; multivariate analysis; microbial spoilage; Alicyclobacillus metal oxides; chemisresistors; electronic nose; nanowires; thin films; DMMP; chemical warfare agents; multivariate analysis; microbial spoilage; Alicyclobacillus
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Ponzoni, A.; Comini, E.; Concina, I.; Ferroni, M.; Falasconi, M.; Gobbi, E.; Sberveglieri, V.; Sberveglieri, G. Nanostructured Metal Oxide Gas Sensors, a Survey of Applications Carried out at SENSOR Lab, Brescia (Italy) in the Security and Food Quality Fields. Sensors 2012, 12, 17023-17045.

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