{"title":"二极不对称双十二烷共轭萘:银离子的荧光化学传感器及其实际应用","authors":"","doi":"10.1016/j.jphotochem.2024.115986","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents the synthesis and characterization of <strong>ICNOD</strong>, a highly selective chemosensor for detecting Ag<sup>+</sup> ions in environmental and biological samples. <strong>ICNOD</strong> was synthesized by reacting n-phenyl-o-phenylenediamine with 1-isocyanate naphthalene in absolute ethanol, yielding a novel chemosensor. Fluorescence studies revealed <strong>ICNOD’s</strong> exceptional selectivity for Ag<sup>+</sup> ions over other common metal ions, making it a promising detection tool. Competitive complexation experiments showed a strong affinity of <strong>ICNOD</strong> for Ag<sup>+</sup> ions, with a 1:2 binding stoichiometry, highlighting its potential for sensitive detection. The detection mechanism involves a combination of Photoinduced Electron Transfer (PET OFF) and Intramolecular Charge Transfer (ICT ON), enabling selective Ag<sup>+</sup> ion detection. The binding constant (Ka) of <strong>ICNOD</strong> for Ag<sup>+</sup> ions was determined to be 3 × 10<sup>−2</sup> M<sup>−1</sup> using the Benesi-Hildebrand technique, with limits of detection (LOD) and quantification (LOQ) of 2.87 nM and 8.70 nM, respectively. Molecular modeling using DFT provided valuable insights into <strong>ICNOD’</strong>s structural features and its interaction with Ag<sup>+</sup> ions, supporting the experimental findings. Spectroscopic techniques, including FT-IR, 1H NMR titration, and HR-mass spectroscopy, confirmed the binding interactions between <strong>ICNOD</strong> and Ag<sup>+</sup> ions. Fukui function analysis identified potential binding sites within <strong>ICNOD</strong> for Ag<sup>+</sup> ions, further elucidating the detection mechanism. The practical applicability of <strong>ICNOD</strong> was successfully demonstrated through real sample analysis, paper strip tests, and bioimaging, showcasing its potential for real-world applications.</p></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1010603024005306/pdfft?md5=e0326d73c2a708ea00b41832af4bc472&pid=1-s2.0-S1010603024005306-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Dipodal unsymmetrical diuryl conjugated naphthalene: A fluorescent chemosensor for silver ions and its practical applications\",\"authors\":\"\",\"doi\":\"10.1016/j.jphotochem.2024.115986\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study presents the synthesis and characterization of <strong>ICNOD</strong>, a highly selective chemosensor for detecting Ag<sup>+</sup> ions in environmental and biological samples. <strong>ICNOD</strong> was synthesized by reacting n-phenyl-o-phenylenediamine with 1-isocyanate naphthalene in absolute ethanol, yielding a novel chemosensor. Fluorescence studies revealed <strong>ICNOD’s</strong> exceptional selectivity for Ag<sup>+</sup> ions over other common metal ions, making it a promising detection tool. Competitive complexation experiments showed a strong affinity of <strong>ICNOD</strong> for Ag<sup>+</sup> ions, with a 1:2 binding stoichiometry, highlighting its potential for sensitive detection. The detection mechanism involves a combination of Photoinduced Electron Transfer (PET OFF) and Intramolecular Charge Transfer (ICT ON), enabling selective Ag<sup>+</sup> ion detection. The binding constant (Ka) of <strong>ICNOD</strong> for Ag<sup>+</sup> ions was determined to be 3 × 10<sup>−2</sup> M<sup>−1</sup> using the Benesi-Hildebrand technique, with limits of detection (LOD) and quantification (LOQ) of 2.87 nM and 8.70 nM, respectively. Molecular modeling using DFT provided valuable insights into <strong>ICNOD’</strong>s structural features and its interaction with Ag<sup>+</sup> ions, supporting the experimental findings. Spectroscopic techniques, including FT-IR, 1H NMR titration, and HR-mass spectroscopy, confirmed the binding interactions between <strong>ICNOD</strong> and Ag<sup>+</sup> ions. Fukui function analysis identified potential binding sites within <strong>ICNOD</strong> for Ag<sup>+</sup> ions, further elucidating the detection mechanism. The practical applicability of <strong>ICNOD</strong> was successfully demonstrated through real sample analysis, paper strip tests, and bioimaging, showcasing its potential for real-world applications.</p></div>\",\"PeriodicalId\":16782,\"journal\":{\"name\":\"Journal of Photochemistry and Photobiology A-chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-08-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1010603024005306/pdfft?md5=e0326d73c2a708ea00b41832af4bc472&pid=1-s2.0-S1010603024005306-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Photochemistry and Photobiology A-chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1010603024005306\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Photochemistry and Photobiology A-chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1010603024005306","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Dipodal unsymmetrical diuryl conjugated naphthalene: A fluorescent chemosensor for silver ions and its practical applications
This study presents the synthesis and characterization of ICNOD, a highly selective chemosensor for detecting Ag+ ions in environmental and biological samples. ICNOD was synthesized by reacting n-phenyl-o-phenylenediamine with 1-isocyanate naphthalene in absolute ethanol, yielding a novel chemosensor. Fluorescence studies revealed ICNOD’s exceptional selectivity for Ag+ ions over other common metal ions, making it a promising detection tool. Competitive complexation experiments showed a strong affinity of ICNOD for Ag+ ions, with a 1:2 binding stoichiometry, highlighting its potential for sensitive detection. The detection mechanism involves a combination of Photoinduced Electron Transfer (PET OFF) and Intramolecular Charge Transfer (ICT ON), enabling selective Ag+ ion detection. The binding constant (Ka) of ICNOD for Ag+ ions was determined to be 3 × 10−2 M−1 using the Benesi-Hildebrand technique, with limits of detection (LOD) and quantification (LOQ) of 2.87 nM and 8.70 nM, respectively. Molecular modeling using DFT provided valuable insights into ICNOD’s structural features and its interaction with Ag+ ions, supporting the experimental findings. Spectroscopic techniques, including FT-IR, 1H NMR titration, and HR-mass spectroscopy, confirmed the binding interactions between ICNOD and Ag+ ions. Fukui function analysis identified potential binding sites within ICNOD for Ag+ ions, further elucidating the detection mechanism. The practical applicability of ICNOD was successfully demonstrated through real sample analysis, paper strip tests, and bioimaging, showcasing its potential for real-world applications.
期刊介绍:
JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds.
All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor).
The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.