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The 8th GOSPEL Workshop. Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding & Application Fields

A special issue of Sensors (ISSN 1424-8220).

Deadline for manuscript submissions: closed (31 January 2020) | Viewed by 13576

Special Issue Editor

Prof. Dr. Vincenzo Guidi

E-Mail Website
Guest Editor
Department of Physics and Earth Sciences, University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy
Interests: gas sensors; metal-oxide chemoresistive materials; nanophased materials; two-dimensional materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

GOSPEL is an international biannual research meeting (http://www.gospel-network.org, https://www.gospel-network.org/old/) dedicated to the R&D activities in the field of semiconducting metal oxide-based gas sensors. The aim is to bring together academia and industry, and help the latter to identify which of the new developments are the most relevant to it.


The 8th GOSPEL Workshop—Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding and Application Fields (GOSPEL 2019) will be held 19–21 June 2019 in Ferrara, Italy (https://agenda.infn.it/event/17310/). The 8th GOSPEL will be organized by the University of Ferrara and the Laboratory of Technological Transfer of the National Institute of Nuclear Physics (INFN-TTLab).


We are proud to announce our agreement with MDPI to publish a Special Issue on GOSPEL 2019, and cordially invite all contributors to publish a full paper of their GOSPEL 2019 contribution in this Special Issue of the journal Sensors (ISSN1424-8220; Impact Factor 2.475; https://www.mdpi.com/journal/sensors) published online by MDPI, Switzerland. According to the publishing rules, the full paper should be based on your conference presentation.

Prof. Vincenzo Guidi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (4 papers)

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Research

9 pages, 1344 KiB  
Article
Nanostructured MOS Sensor for the Detection, Follow up, and Threshold Pursuing of Campylobacter Jejuni Development in Milk Samples
by Estefanía Núñez-Carmona, Marco Abbatangelo, Dario Zappa, Elisabetta Comini, Giorgio Sberveglieri and Veronica Sberveglieri
Sensors 2020, 20(7), 2009; https://doi.org/10.3390/s20072009 - 03 Apr 2020
Cited by 11 | Viewed by 2492
Abstract
Food poisoning is still the first cause of hospitalization worldwide and the most common microbial agent, Campylobacter jejuni, is the most commonly reported gastrointestinal disease in humans in the EU (European Union) as is reported by the European Union One Health 2018 [...] Read more.
Food poisoning is still the first cause of hospitalization worldwide and the most common microbial agent, Campylobacter jejuni, is the most commonly reported gastrointestinal disease in humans in the EU (European Union) as is reported by the European Union One Health 2018 Zoonoses Report styled by the EFSA (European Food Safety Authority) and ECDC (European Center for Disease Prevention and Control). One of the vehicles of transmission of this disease is milk. Nanostructured MOS (Metal Oxide Semiconductor) sensors have extensively demonstrated their ability to reveal the presence and follow the development of microbial species. The main objective of this work was to find a set up for the detection and development follow up of C. jejuni in milk samples. The work was structured in two different studies, the first one was a feasibility survey and the second one was to follow up the development of the bacteria inside milk samples. The obtained results of the first study demonstrate the ability of the sensor array to differentiate the contaminated samples from the control ones. Thanks to the second study, it has been possible to find the limit of microbial safety of the contaminated milk samples. Full article
(This article belongs to the Special Issue The 8th GOSPEL Workshop. Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding & Application Fields)
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12 pages, 3885 KiB  
Article
Prototype of Nitro Compound Vapor and Trace Detector Based on a Capacitive MIS Sensor
by Nikolay Samotaev, Artur Litvinov, Maya Etrekova, Konstantin Oblov, Dmitrii Filipchuk and Alexey Mikhailov
Sensors 2020, 20(5), 1514; https://doi.org/10.3390/s20051514 - 10 Mar 2020
Cited by 5 | Viewed by 4396
Abstract
A prototype of a nitro compound vapor and trace detector, which uses the pyrolysis method and a capacitive gas sensor based on the metal–insulator–semiconductor (MIS) structure type Pd–SiO2–Si, was developed and manufactured. It was experimentally established that the detection limit of [...] Read more.
A prototype of a nitro compound vapor and trace detector, which uses the pyrolysis method and a capacitive gas sensor based on the metal–insulator–semiconductor (MIS) structure type Pd–SiO2–Si, was developed and manufactured. It was experimentally established that the detection limit of trinitrotoluene trace for the detector prototype is 1 × 10−9 g, which corresponds to concentration from 10−11 g/cm3 to 10−12 g/cm3. The prototype had a response time of no more than 30 s. The possibility of further improving the characteristics of the prototype detector by reducing the overall dimensions and increasing the sensitivity of the MIS sensors is shown. Full article
(This article belongs to the Special Issue The 8th GOSPEL Workshop. Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding & Application Fields)
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15 pages, 2275 KiB  
Article
Nanostructured Chemoresistive Sensors for Oncological Screening and Tumor Markers Tracking: Single Sensor Approach Applications on Human Blood and Cell Samples
by Nicolò Landini, Gabriele Anania, Michele Astolfi, Barbara Fabbri, Vincenzo Guidi, Giorgio Rispoli, Matteo Valt, Giulia Zonta and Cesare Malagù
Sensors 2020, 20(5), 1411; https://doi.org/10.3390/s20051411 - 04 Mar 2020
Cited by 12 | Viewed by 2330
Abstract
Preventive screening does not only allow to preemptively intervene on pathologies before they can harm the host; but also to reduce the costs of the intervention itself; boosting the efficiency of the NHS (National Health System) by saving resources for other purposes. To [...] Read more.
Preventive screening does not only allow to preemptively intervene on pathologies before they can harm the host; but also to reduce the costs of the intervention itself; boosting the efficiency of the NHS (National Health System) by saving resources for other purposes. To improve technology advancements in this field; user-friendly yet low-cost devices are required; and various applications for gas sensors have been tested and proved reliable in past studies. In this work; cell cultures and blood samples have been studied; using nanostructured chemoresistive sensors; to both verify if this technology can reliably detect tumor markers; and if correlations between responses from tumor line metabolites and the screening outcomes on human specimens could be observed. The results showed how sensors responded differently to the emanations from healthy and mutant (for cells) or tumor affected (for blood) samples, and how those results were consistent between them, since the tumoral specimens had higher responses compared to the ones of their healthy counterparts. Even though the patterns in the responses require a bigger population to be defined properly; it appeared that the different macro-groups between the same kind of samples are distinguishable from some of the sensors chosen in the study; giving promising outcomes for further research. Full article
(This article belongs to the Special Issue The 8th GOSPEL Workshop. Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding & Application Fields)
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19 pages, 6787 KiB  
Article
Performance of Flexible Chemoresistive Gas Sensors after Having Undergone Automated Bending Tests
by Miriam Alvarado, Silvia De La Flor, Eduard Llobet, Alfonso Romero and José Luis Ramírez
Sensors 2019, 19(23), 5190; https://doi.org/10.3390/s19235190 - 27 Nov 2019
Cited by 14 | Viewed by 3354
Abstract
Many sensors are developed over flexible substrates to be used as wearables, which does not guarantee that they will actually withstand being bent. This work evaluates the gas sensing performance of metal oxide devices of three different types, before and after having undergone [...] Read more.
Many sensors are developed over flexible substrates to be used as wearables, which does not guarantee that they will actually withstand being bent. This work evaluates the gas sensing performance of metal oxide devices of three different types, before and after having undergone automated, repetitive bending tests. These tests were aimed at demonstrating that the fabricated sensors were actually flexible, which cannot be taken for granted beforehand. The active layer in these sensors consisted of WO3 nanowires (NWs) grown directly over a Kapton foil by means of the aerosol-assisted chemical vapor deposition. Their response to different H2 concentrations was measured at first. Then, they were cyclically bent, and finally, their response to H2 was measured again. Sensors based on pristine WO3-NWs over Ag electrodes and on Pd-decorated NWs over Au electrodes maintained their performance after having been bent. Ag electrodes covered with Pd-decorated NWs became fragile and lost their usefulness. To summarize, two different types of truly flexible metal oxide gas sensor were fabricated, whereas a third one was not flexible, despite being grown over a flexible substrate following the same method. Finally, we recommend that one standard bending test procedure should be established to clearly determine the flexibility of a sensor considering its intended application. Full article
(This article belongs to the Special Issue The 8th GOSPEL Workshop. Gas Sensors Based on Semiconducting Metal Oxides: Basic Understanding & Application Fields)
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