{"title":"Ratio Fluorescence Sensor Based on Bimetal MOFs for the Detection of Hg<sup>2+</sup>and H<sub>2</sub>O<sub>2</sub>.","authors":"Bo-Ming Han, Hao-Rui Zhang, Wen-Jie Gao, Xi-Wen He, Wen-You Li, Yu-Kui Zhang","doi":"10.1007/s10895-025-04234-w","DOIUrl":null,"url":null,"abstract":"<p><p>In this work, a dual-emission material based on lanthanide metals was synthesized and used as a ratio fluorescence sensor to respond to Hg<sup>2+</sup> and H<sub>2</sub>O<sub>2</sub>, respectively. Tb-BDC-NH<sub>2</sub> as a bimetal MOFs had double ligands and exhibited double fluorescence emission peaks at 550 nm and 450 nm. The two emission peaks of Tb-BDC-NH<sub>2</sub> can be quenched by Hg<sup>2+</sup> and H<sub>2</sub>O<sub>2</sub> respectively, forming a built-in calibration signal for ratio fluorescence detection. Based on the different detection conditions of the Hg<sup>2+</sup> and H<sub>2</sub>O<sub>2</sub>, the simultaneous detection of the two detection substances can be achieved with simple operation. This detection system had good stability and anti-interference ability. Under optimal conditions, the detection limit for Hg<sup>2+</sup> detection was 0.2 µM. Meanwhile, for the detection of H<sub>2</sub>O<sub>2</sub>, the detection limit was 11 µM and large linear ranges were obtained. Through actual sample testing, it had been proven that the ratio fluorescence sensor based on Tb-BDC-NH<sub>2</sub> had good application prospects. And the work also provided a new idea for double substances detection.</p>","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fluorescence","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10895-025-04234-w","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOCHEMICAL RESEARCH METHODS","Score":null,"Total":0}
引用次数: 0
Abstract
In this work, a dual-emission material based on lanthanide metals was synthesized and used as a ratio fluorescence sensor to respond to Hg2+ and H2O2, respectively. Tb-BDC-NH2 as a bimetal MOFs had double ligands and exhibited double fluorescence emission peaks at 550 nm and 450 nm. The two emission peaks of Tb-BDC-NH2 can be quenched by Hg2+ and H2O2 respectively, forming a built-in calibration signal for ratio fluorescence detection. Based on the different detection conditions of the Hg2+ and H2O2, the simultaneous detection of the two detection substances can be achieved with simple operation. This detection system had good stability and anti-interference ability. Under optimal conditions, the detection limit for Hg2+ detection was 0.2 µM. Meanwhile, for the detection of H2O2, the detection limit was 11 µM and large linear ranges were obtained. Through actual sample testing, it had been proven that the ratio fluorescence sensor based on Tb-BDC-NH2 had good application prospects. And the work also provided a new idea for double substances detection.
期刊介绍：
Journal of Fluorescence is an international forum for the publication of peer-reviewed original articles that advance the practice of this established spectroscopic technique. Topics covered include advances in theory/and or data analysis, studies of the photophysics of aromatic molecules, solvent, and environmental effects, development of stationary or time-resolved measurements, advances in fluorescence microscopy, imaging, photobleaching/recovery measurements, and/or phosphorescence for studies of cell biology, chemical biology and the advanced uses of fluorescence in flow cytometry/analysis, immunology, high throughput screening/drug discovery, DNA sequencing/arrays, genomics and proteomics. Typical applications might include studies of macromolecular dynamics and conformation, intracellular chemistry, and gene expression. The journal also publishes papers that describe the synthesis and characterization of new fluorophores, particularly those displaying unique sensitivities and/or optical properties. In addition to original articles, the Journal also publishes reviews, rapid communications, short communications, letters to the editor, topical news articles, and technical and design notes.
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