Small Sensor System (S3) Equipped with Nanowires Sensors as an Interdisciplinary e-Sensing Device for the Microbiological and Quality Control
Authors: Sberveglieri V., Soprani M., Carmona EN.
Autors Affiliation: CNR INO, Sensor Lab, Via Branze 45, I-25124 Brescia, Italy; Univ Modena & Reggio Emilia, Dept Life Sci, Via JF Kennedy 17, I-42124 Reggio Emilia, Italy; Univ Brescia, Dept Informat Engn, Via Branze 38, I-25123 Brescia, Italy
Abstract: Nowadays a fast and economic device for the early detection of microbial contamination and quality assurance is need to reduce the number of food-borne related hospitalizations by year. These paper present applications crossing the food quality to arrive at the human cross-contamination. The S3 Device has been constructed at the Sensor Lab as well as the classical MOX sensors and the new technologies with nanowire. It is linked to the necessity of a portable, low power consumption and user-friendly device. The aim of this study was to investigate and show the broad spectrum of potential applications of the S3 device in food quality control and microbial cross-contamination diagnosis. The S3 technique was combined with classical microbiological and chemical techniques, like GC-MS with SPME, for the control of river wastewater contamination. In the analysed case, the novel S3 device was proficient to identify the target by means of the alterations in the pattern of volatile organic compounds (VOCs), recreated by principal component analysis (PCA) of the sensor-achieved responses. The reached results powerfully support the use of S3 device in industrial laboratories.
KeyWords: Small sensor system (S3); Nanowire sensors; MOX; Electronic nose; GC-MS-SPME; Microbial quality control