{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T06:50:11Z","timestamp":1792047011591,"version":"4.4.0"},"reference-count":47,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:00:00Z","timestamp":1791244800000},"content-version":"vor","delay-in-days":5,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82260337"],"award-info":[{"award-number":["82260337"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Luminescence"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Considering the growing global abuse of methamphetamine (MA) and its related public health and social consequences, developing rapid and sensitive point\u2010of\u2010care testing (POCT) methods for forensic applications has attracted increasing attention. This study developed an iron\u2010 and zinc\u2010doped carbon dots (Fe,Zn@PEI\u2010CDs)\u2013based smartphone\u2010integrated fluorescent sensor using a simple one\u2010pot hydrothermal synthetic procedure. The fluorescence intensity of the Fe,Zn@PEI\u2010CDs at 360\/452\u2009nm (excitation wavelength\/emission wavelength) was significantly increased upon exposure to MA through an aggregation\u2010induced emission (AIE) mechanism. The sensor displayed excellent linearity (\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>2<\/jats:sup>\n                    \u2009=\u20090.991) over the 60\u2010 to 600\u2010\u03bcg\/mL range. Irradiation with 365\u2010nm ultraviolet light resulted in a distinct fluorescence color transition from light blue to dark blue. The values of the red (R), green (G), and blue (B) channels for the captured images were determined by a smartphone\u2010installed color picker application, and a grayscale analysis model was then constructed for visually detecting MA, yielding a limit of detection of 14.61\u2009\u03bcg\/mL. The proposed method was validated using urine samples, displaying recovery values ranging from 98.37% to 103.34% with relative standard deviations of less than 3.0%. These results provide a reliable method for detecting MA and offer a new solution for the rapid analysis of illicit drugs.\n                  <\/jats:p>","DOI":"10.1002\/bio.70640","type":"journal-article","created":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T03:11:12Z","timestamp":1791342672000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Smartphone\u2010Integrated Fluorescence Sensing Platform for Specific Detection of Methamphetamine Using a Fe,Zn@PEI\u2010CDs Fluorescent Probe"],"prefix":"10.1002","volume":"41","author":[{"given":"Qinhong","family":"Yin","sequence":"first","affiliation":[{"name":"Key Laboratory of Intelligent Drug Control, Ministry of Education, Yunnan Key Laboratory of Intelligent Drug Control, Faculty of Narcotics Control Yunnan Police College  Kunming 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