{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T12:45:22Z","timestamp":1792586722746,"version":"4.5.0"},"reference-count":0,"publisher":"The Journal of Food and Drug Analysis (JFDA), Food and Drug Administration, Taiwan (TFDA)","issue":"1","license":[{"start":{"date-parts":[[2023,3,10]],"date-time":"2023-03-10T00:00:00Z","timestamp":1678406400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Food and Drug Analysis"],"abstract":"<jats:p>Tetracycline is an antibiotic that has been prescribed for COVID-19 treatment, raising concerns about antibiotic resistance after long-term use. This study reported fluorescent polyvinylpyrrolidone-passivated iron oxide quantum dots (IO QDs) for detecting tetracycline in biological fluids for the first time. The as-prepared IO QDs have an average size of 2.84 nm and exist a good stability under different conditions. The IO QDs\u2019 tetracycline detection performance could be attributed to a combination of static quenching and inner filter effect. The IO QDs displayed high sensitivity and selectivity toward tetracycline and achieved a good linear relationship with the corresponding detection limit being 91.6 nM.<\/jats:p>","DOI":"10.38212\/2224-6614.3440","type":"journal-article","created":{"date-parts":[[2023,3,11]],"date-time":"2023-03-11T07:13:25Z","timestamp":1678518805000},"page":"177-193","source":"Crossref","is-referenced-by-count":9,"title":["Polyvinylpyrrolidone-passivated fluorescent Iron oxide quantum dots for turn-off detection of tetracycline in biological fluids"],"prefix":"10.38212","volume":"31","author":[{"given":"Sri","family":"Sudewi","sequence":"first","affiliation":[{"name":"Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lutfi","family":"Chabib","sequence":"additional","affiliation":[{"name":"Pharmacy Study Program, Faculty of Mathematics and Science, Universitas Islam Indonesia, Yogyakarta 55584, Indonesia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muhammad","family":"Zulfajri","sequence":"additional","affiliation":[{"name":"Department of Chemistry Education, Universitas Serambi Mekkah, Banda Aceh, Aceh 23245, Indonesia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gangaraju","family":"Gedda","sequence":"additional","affiliation":[{"name":"Department of Chemistry, School of Engineering, Presidency University, Bangalore,560064, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Genin Gary","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, R.O.C."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"25385","published-online":{"date-parts":[[2023,3,10]]},"container-title":["Journal of Food and Drug Analysis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.jfda-online.com\/cgi\/viewcontent.cgi?article=3440&amp;context=journal","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T12:17:33Z","timestamp":1792585053000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.jfda-online.com\/journal\/vol31\/iss1\/12"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,3,10]]},"references-count":0,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2023,3,10]]}},"URL":"https:\/\/doi.org\/10.38212\/2224-6614.3440","relation":{},"ISSN":["2224-6614"],"issn-type":[{"value":"2224-6614","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,3,10]]}}}