{"title":"A highly sensitive polydentate ligand-based fluorescent probe for imaging of Hg2+ in Arabidopsis thaliana","authors":"Xianjiao Meng, Yaru Zhang, Jingjing Li","doi":"10.1016/j.synthmet.2024.117689","DOIUrl":null,"url":null,"abstract":"<div><p>A novel fluorescent chemosensor (<em>E</em>)-2-((3-((bis(pyridin-2-ylmethyl)amino)methyl)-2-hydroxy-5-methylbenzylidene)amino)-3′, 6′-bis(diethylamino)spiro[isoindoline-1, 9′-xanthen]-3-one (<strong>RPA)</strong> was synthesized through traditional Schiff base preparation methods and characterized by <sup>1</sup>H NMR, <sup>13</sup>C NMR and ESI-MS. Sensor <strong>RPA</strong> showed obvious fluorescence enhancement response to Hg<sup>2+</sup> in aqueous solution, and the detection limit was 0.8 μM. The results of Job curve indicated that sensor <strong>RPA</strong> and Hg<sup>2+</sup> ion coordinated with each other with a binding stoichiometry of 1:1, and the optimal pH range was from 4 to 9. The results of paper strip suggested that sensor <strong>RPA</strong> could been used for effective naked-eye detection of Hg<sup>2+</sup> and showed low toxicity and good biocompatibility with <em>Arabidopsis thaliana</em>.</p></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"307 ","pages":"Article 117689"},"PeriodicalIF":4.0000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Synthetic Metals","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0379677924001516","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
A novel fluorescent chemosensor (E)-2-((3-((bis(pyridin-2-ylmethyl)amino)methyl)-2-hydroxy-5-methylbenzylidene)amino)-3′, 6′-bis(diethylamino)spiro[isoindoline-1, 9′-xanthen]-3-one (RPA) was synthesized through traditional Schiff base preparation methods and characterized by 1H NMR, 13C NMR and ESI-MS. Sensor RPA showed obvious fluorescence enhancement response to Hg2+ in aqueous solution, and the detection limit was 0.8 μM. The results of Job curve indicated that sensor RPA and Hg2+ ion coordinated with each other with a binding stoichiometry of 1:1, and the optimal pH range was from 4 to 9. The results of paper strip suggested that sensor RPA could been used for effective naked-eye detection of Hg2+ and showed low toxicity and good biocompatibility with Arabidopsis thaliana.
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This journal is an international medium for the rapid publication of original research papers, short communications and subject reviews dealing with research on and applications of electronic polymers and electronic molecular materials including novel carbon architectures. These functional materials have the properties of metals, semiconductors or magnets and are distinguishable from elemental and alloy/binary metals, semiconductors and magnets.
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