{"title":"基于咪唑并[1,2-α]吡啶的极性和粘度依赖性荧光探针及其在 2,6-二氯-4-硝基苯胺选择性检测中的应用","authors":"Yujie Zhu , Xuebo Sun , Yu Yuan, Xinran Zhao, Zewen Zhai, Bing Song, Wenjing Zhang, Xinju Zhu, Xin-Qi Hao","doi":"10.1016/j.dyepig.2024.112425","DOIUrl":null,"url":null,"abstract":"<div><p>Three novel organic fluorescent probes <strong>M1-M3</strong> with different conjugation length have been designed and synthesized from readily available starting materials via concise procedures. The obtained carbonyl-substituted imidazopyridines <strong>M1-M3</strong> exhibit viscosity- and polarity-dependent dual-responsive properties. Structural modulation indicates that the polarity and viscosity sensitivity of <strong>M1-M3</strong> can be tuned by variation of conjugation length. Importantly, <strong>M1-M3</strong> demonstrate sensing ability for 2,6-dichloro-4-nitroaniline (DCN) with high selectivity and sensitivity in THF with a limit of detection (LOD) of 189 ppb, 62 ppb, and 54 ppb, respectively. The luminescence quenching of the compounds is caused by photo-induced electron transfer.</p></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"231 ","pages":"Article 112425"},"PeriodicalIF":4.1000,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Imidazo[1,2-α]pyridine-based polarity and viscosity-dependent fluorescent probes and application in selective detection of 2,6-dichloro-4-nitroaniline\",\"authors\":\"Yujie Zhu , Xuebo Sun , Yu Yuan, Xinran Zhao, Zewen Zhai, Bing Song, Wenjing Zhang, Xinju Zhu, Xin-Qi Hao\",\"doi\":\"10.1016/j.dyepig.2024.112425\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Three novel organic fluorescent probes <strong>M1-M3</strong> with different conjugation length have been designed and synthesized from readily available starting materials via concise procedures. The obtained carbonyl-substituted imidazopyridines <strong>M1-M3</strong> exhibit viscosity- and polarity-dependent dual-responsive properties. Structural modulation indicates that the polarity and viscosity sensitivity of <strong>M1-M3</strong> can be tuned by variation of conjugation length. Importantly, <strong>M1-M3</strong> demonstrate sensing ability for 2,6-dichloro-4-nitroaniline (DCN) with high selectivity and sensitivity in THF with a limit of detection (LOD) of 189 ppb, 62 ppb, and 54 ppb, respectively. The luminescence quenching of the compounds is caused by photo-induced electron transfer.</p></div>\",\"PeriodicalId\":302,\"journal\":{\"name\":\"Dyes and Pigments\",\"volume\":\"231 \",\"pages\":\"Article 112425\"},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-08-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Dyes and Pigments\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0143720824004911\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dyes and Pigments","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143720824004911","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Imidazo[1,2-α]pyridine-based polarity and viscosity-dependent fluorescent probes and application in selective detection of 2,6-dichloro-4-nitroaniline
Three novel organic fluorescent probes M1-M3 with different conjugation length have been designed and synthesized from readily available starting materials via concise procedures. The obtained carbonyl-substituted imidazopyridines M1-M3 exhibit viscosity- and polarity-dependent dual-responsive properties. Structural modulation indicates that the polarity and viscosity sensitivity of M1-M3 can be tuned by variation of conjugation length. Importantly, M1-M3 demonstrate sensing ability for 2,6-dichloro-4-nitroaniline (DCN) with high selectivity and sensitivity in THF with a limit of detection (LOD) of 189 ppb, 62 ppb, and 54 ppb, respectively. The luminescence quenching of the compounds is caused by photo-induced electron transfer.
期刊介绍：
Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied.
Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media.
The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.
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