Novel zinc nanoclusters based ratiometric fluorescence sensing strategy for sensitive detection of thiram.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Novel zinc nanoclusters based ratiometric fluorescence sensing strategy for sensitive detection of thiram.
Συγγραφείς: Zhou W; College of Chemistry, Jilin University, Changchun 130012, China; MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biological, Department of Chemistry, Tsinghua University, Beijing 100084, China., Li S; College of Chemistry, Jilin University, Changchun 130012, China; National Demonstration Center for Experimental Chemistry Education, Jilin University, Changchun 130012, China., Wang H; College of Chemistry, Jilin University, Changchun 130012, China., Zhang H; Jilin Academy of Agricultural Sciences, Changchun 130033, China., Jia Q; College of Chemistry, Jilin University, Changchun 130012, China; National Demonstration Center for Experimental Chemistry Education, Jilin University, Changchun 130012, China. Electronic address: jiaqiong@jlu.edu.cn.
Πηγή: Food chemistry [Food Chem] 2026 Mar 15; Vol. 505, pp. 147957. Date of Electronic Publication: 2026 Jan 10.
Τύπος έκδοσης: Journal Article; Evaluation Study
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 7702639 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-7072 (Electronic) Linking ISSN: 03088146 NLM ISO Abbreviation: Food Chem Subsets: MEDLINE
Imprint Name(s): Publication: Barking : Elsevier Applied Science Publishers
Original Publication: Barking, Eng., Applied Science Publishers.
Ιατρικοί όροι (MeSH): Zinc*/chemistry , Thiram*/analysis , Fluorescence Resonance Energy Transfer*/methods , Fluorescence Resonance Energy Transfer*/instrumentation , Metal Nanoparticles*/chemistry, Food Contamination/analysis ; Fluorescent Dyes/chemistry ; Spectrometry, Fluorescence/methods ; Spectrometry, Fluorescence/instrumentation ; Limit of Detection ; Fluorescence ; Fluorescent Chemosensor Compounds
Περίληψη: Thiram residue has drawn widespread attention due to its severe threat to the agricultural safety. Herein, a ratiometric fluorescence probe was designed for thiram detection based on glutathione capped zinc nanoclusters (GSH-ZnNCs) and o-phenylenediamine (OPD). OPD was oxidized by Ag+ to produce 2, 3-diaminophenazine (DAP), and the fluorescence of GSH-ZnNCs was quenched by DAP through fluorescence resonance energy transfer (FRET) effect. When exposed to thiram, Ag+ led to the cleavage of SS bond in thiram to form Ag+-dimethyl thiocarbamate complex, inhibiting the oxidation of OPD. Accordingly, specific thiram detection was constructed with GSH-ZnNCs. The ratiometric fluorescence value of lg(I574/I442) decreased linearly with increasing thiram concentration, and the limit of detection 0.116 μM was achieved. Moreover, the convenient sensing of thiram was achieved by combining with a smartphone. Both the fluorescence and portable sensing strategies were applied to real food sample analysis, showing potential in thiram sensing in agricultural areas.
(Copyright © 2026 Elsevier Ltd. All rights reserved.)
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
Contributed Indexing: Keywords: Ratiometric fluorescence; Smartphone; Thiram; Zinc nanoclusters
Substance Nomenclature: J41CSQ7QDS (Zinc)
0D771IS0FH (Thiram)
0 (Fluorescent Dyes)
0 (Fluorescent Chemosensor Compounds)
Entry Date(s): Date Created: 20260117 Date Completed: 20260221 Latest Revision: 20260626
Update Code: 20260626
DOI: 10.1016/j.foodchem.2026.147957
PMID: 41547020
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:1873-7072
DOI:10.1016/j.foodchem.2026.147957