{"title":"合理制备作为 2,6-吡啶二羧酸荧光探针的阴离子羧酸锌框架","authors":"Hui-Hui Xie, Hao Yu, Xiuling Xu and Si-Fu Tang","doi":"10.1039/D4DT02529F","DOIUrl":null,"url":null,"abstract":"<p >Sensitive, rapid and convenient sensing of 2,6-pyridinedicarboxylic acid (<strong>DPA</strong>, a biomarker for <em>Bacillus anthracis</em>) is crucial for the screening and diagnosis of anthrax. Metal organic framework (MOF)-based sensors are very promising for sensing <strong>DPA</strong>; however, the design and construction of high-performance sensors with high specificity and sensitivity is still challenging. In this work, a novel luminescent carboxylate MOF (<strong>TTCA-Zn</strong>) was assembled and employed specifically for the recognition of <strong>DPA</strong>. We found that it has a three-dimensional anionic framework structure with <em>sqc</em> topology and uses [NH<small><sub>2</sub></small>(CH<small><sub>3</sub></small>)<small><sub>2</sub></small>]<small><sup>+</sup></small> as the counter ions. The fluorescence intensity of <strong>TTCA-Zn</strong> displays a “turn-on” response to the addition of <strong>DPA</strong> and can function as a high-performance fluorescent sensor of <strong>DPA</strong> over a wide detection range of 0 to 70 μM, with a low detection limit of 14 nM. The sensing mechanism is also systematically investigated. This work not only reports a new fluorescence sensing material for <strong>DPA</strong>, but also provides a strategy for the structural design, assembly, and application of such sensors.</p>","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":" 1","pages":" 159-165"},"PeriodicalIF":3.5000,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Rational fabrication of an anionic zinc carboxylate framework as a fluorescent probe for 2,6-pyridinedicarboxylic acid†\",\"authors\":\"Hui-Hui Xie, Hao Yu, Xiuling Xu and Si-Fu Tang\",\"doi\":\"10.1039/D4DT02529F\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Sensitive, rapid and convenient sensing of 2,6-pyridinedicarboxylic acid (<strong>DPA</strong>, a biomarker for <em>Bacillus anthracis</em>) is crucial for the screening and diagnosis of anthrax. Metal organic framework (MOF)-based sensors are very promising for sensing <strong>DPA</strong>; however, the design and construction of high-performance sensors with high specificity and sensitivity is still challenging. In this work, a novel luminescent carboxylate MOF (<strong>TTCA-Zn</strong>) was assembled and employed specifically for the recognition of <strong>DPA</strong>. We found that it has a three-dimensional anionic framework structure with <em>sqc</em> topology and uses [NH<small><sub>2</sub></small>(CH<small><sub>3</sub></small>)<small><sub>2</sub></small>]<small><sup>+</sup></small> as the counter ions. The fluorescence intensity of <strong>TTCA-Zn</strong> displays a “turn-on” response to the addition of <strong>DPA</strong> and can function as a high-performance fluorescent sensor of <strong>DPA</strong> over a wide detection range of 0 to 70 μM, with a low detection limit of 14 nM. The sensing mechanism is also systematically investigated. This work not only reports a new fluorescence sensing material for <strong>DPA</strong>, but also provides a strategy for the structural design, assembly, and application of such sensors.</p>\",\"PeriodicalId\":71,\"journal\":{\"name\":\"Dalton Transactions\",\"volume\":\" 1\",\"pages\":\" 159-165\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-10-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Dalton Transactions\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2025/dt/d4dt02529f\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dalton Transactions","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/dt/d4dt02529f","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Rational fabrication of an anionic zinc carboxylate framework as a fluorescent probe for 2,6-pyridinedicarboxylic acid†
Sensitive, rapid and convenient sensing of 2,6-pyridinedicarboxylic acid (DPA, a biomarker for Bacillus anthracis) is crucial for the screening and diagnosis of anthrax. Metal organic framework (MOF)-based sensors are very promising for sensing DPA; however, the design and construction of high-performance sensors with high specificity and sensitivity is still challenging. In this work, a novel luminescent carboxylate MOF (TTCA-Zn) was assembled and employed specifically for the recognition of DPA. We found that it has a three-dimensional anionic framework structure with sqc topology and uses [NH2(CH3)2]+ as the counter ions. The fluorescence intensity of TTCA-Zn displays a “turn-on” response to the addition of DPA and can function as a high-performance fluorescent sensor of DPA over a wide detection range of 0 to 70 μM, with a low detection limit of 14 nM. The sensing mechanism is also systematically investigated. This work not only reports a new fluorescence sensing material for DPA, but also provides a strategy for the structural design, assembly, and application of such sensors.
期刊介绍:
Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.