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Laboratory","award":["SKLPBS2249"],"award-info":[{"award-number":["SKLPBS2249"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The real-time monitoring of food freshness in refrigerators is of significant importance in detecting potential food spoiling and preventing serious health issues. One method that is commonly reported and has received substantial attention is the discrimination of food freshness via the tracking of volatile molecules. Nevertheless, the ambient environment of low temperature (normally below 4 \u00b0C) and high humidity (90% R.H.), as well as poor selectivity in sensing gas species remain the challenge. In this research, an integrated smart gas-tracking device is designed and fabricated. By applying pump voltage on the yttria-stabilized zirconia (YSZ) membrane, the oxygen concentration in the testing chamber can be manually tailored. Due to the working principle of the sensor following the mixed potential behavior, distinct differences in sensitivity and selectivity are observed for the sensor that operated at different oxygen concentrations. Typically, the sensor gives satisfactory selectivity to H2S, NH3, and C2H5OH at the oxygen concentrations of 10%, 30%, and 40%, respectively. In addition, an acceptable response\/recovery rate (within 24 s) is also confirmed. Finally, a refrigerator prototype that includes the smart gas sensor is built, and satisfactory performance in discriminating food freshness status of fresh or semi-fresh is verified for the proposed refrigerator prototype. In conclusion, these aforementioned promising results suggest that the proposed integrated smart gas sensor could be a potential candidate for alarming food spoilage.<\/jats:p>","DOI":"10.3390\/s23198109","type":"journal-article","created":{"date-parts":[[2023,9,28]],"date-time":"2023-09-28T07:50:26Z","timestamp":1695887426000},"page":"8109","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Integrated Smart Gas Tracking Device with Artificially Tailored Selectivity for Real-Time Monitoring Food Freshness"],"prefix":"10.3390","volume":"23","author":[{"given":"Yuli","family":"Xu","sequence":"first","affiliation":[{"name":"Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zicheng","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jingren","family":"Lin","sequence":"additional","affiliation":[{"name":"Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jintao","family":"Zhao","sequence":"additional","affiliation":[{"name":"Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nguyen Duc","family":"Hoa","sequence":"additional","affiliation":[{"name":"International Training Institute for Material Science, Hanoi University of Science and Technology, Hanoi 100000, Vietnam"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nguyen Van","family":"Hieu","sequence":"additional","affiliation":[{"name":"Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi 100000, Vietnam"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexander A.","family":"Ganeev","sequence":"additional","affiliation":[{"name":"Department of Chemistry, St Petersburg University, 7\/9 Universitetskaya Emb., St. Petersburg 199034, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1676-0202","authenticated-orcid":false,"given":"Victoria","family":"Chuchina","sequence":"additional","affiliation":[{"name":"Department of Chemistry, St Petersburg University, 7\/9 Universitetskaya Emb., St. Petersburg 199034, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4670-2783","authenticated-orcid":false,"given":"Abolghasem","family":"Jouyban","sequence":"additional","affiliation":[{"name":"Pharmaceutical Analysis Research Center, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz 51368, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daxiang","family":"Cui","sequence":"additional","affiliation":[{"name":"Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"},{"name":"National Engineering Research Center for Nanotechnology, Shanghai 200241, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ying","family":"Wang","sequence":"additional","affiliation":[{"name":"Chengdu Environmental Investment Group Co., Ltd., Building 1, Tianfushijia, No. 1000 Jincheng Street, Chengdu 610000, China"},{"name":"Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu 610101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Han","family":"Jin","sequence":"additional","affiliation":[{"name":"Institute of Micro-Nano Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China"},{"name":"National Engineering Research Center for Nanotechnology, Shanghai 200241, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2200841","DOI":"10.1002\/admt.202200841","article-title":"Conducting Polymer Based Ammonia and Hydrogen Sulfide Chemical Sensors and Their Suitability for Detecting Food Spoilage","volume":"8","author":"Preethichandra","year":"2023","journal-title":"Adv. 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