{"title":"基于AIE活性咪唑偶联α-氰二苯乙烯的苦味酸传感器的选择性灵敏检测","authors":"Selin Manoj Kumar, Sathiyanarayanan Kulathu Iyer","doi":"10.1016/j.snr.2023.100177","DOIUrl":null,"url":null,"abstract":"<div><p>Due to increasing pollution threats, terrorism-sensitive rapid sensing of aromatic nitro explosives (picric acid) has gained predominant significance in environmental safety. Herein, imidazole-derived monofunctional fluorescent sensor 2-(4-aminophenyl)-3-(3-(4,5-diphenyl-1<em>H</em>-imidazol-2-yl)-2-hydroxyphenyl) acrylonitrile (<strong>ADHA)</strong> was successfully developed for the selective recognition of explosive picric acid. The D-π-A configuration of <strong>ADHA</strong> facilitates extraordinary photophysical properties with remarkable aggregation-induced emission (AIE). The detection process is induced by the photon-induced electron transfer (PET) and resonance energy transfer (RET) and results in the generation of <strong>ADHA</strong>+PA complex. The structural relationship and the photophysical properties of <strong>ADHA</strong> were extensively studied by DFT (Density Functional Theory) methods and spectroscopic analysis. It has been calculated that the detection limit of the formed complex is 6.26 nM. In addition, <sup>1</sup>H NMR titrations DFT calculations, and HRMS analysis were performed to understand the detection mechanism better. Test strip-aided detection and invisible ink applications confirmed that <strong>ADHA</strong> is a versatile sensor for sensitively detecting picric acid without sophisticated instruments. In addition, <strong>ADHA</strong> was implemented to detect PA in real water samples with remarkable recovery.</p></div>","PeriodicalId":426,"journal":{"name":"Sensors and Actuators Reports","volume":"6 ","pages":"Article 100177"},"PeriodicalIF":6.5000,"publicationDate":"2023-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666053923000401/pdfft?md5=dc9ee271531b158ab41117437af8ca54&pid=1-s2.0-S2666053923000401-main.pdf","citationCount":"1","resultStr":"{\"title\":\"An AIE active imidazole conjugated α-cyanostilbene based sensor for the selective and sensitive detection of picric acid in an aqueous medium\",\"authors\":\"Selin Manoj Kumar, Sathiyanarayanan Kulathu Iyer\",\"doi\":\"10.1016/j.snr.2023.100177\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Due to increasing pollution threats, terrorism-sensitive rapid sensing of aromatic nitro explosives (picric acid) has gained predominant significance in environmental safety. Herein, imidazole-derived monofunctional fluorescent sensor 2-(4-aminophenyl)-3-(3-(4,5-diphenyl-1<em>H</em>-imidazol-2-yl)-2-hydroxyphenyl) acrylonitrile (<strong>ADHA)</strong> was successfully developed for the selective recognition of explosive picric acid. The D-π-A configuration of <strong>ADHA</strong> facilitates extraordinary photophysical properties with remarkable aggregation-induced emission (AIE). The detection process is induced by the photon-induced electron transfer (PET) and resonance energy transfer (RET) and results in the generation of <strong>ADHA</strong>+PA complex. The structural relationship and the photophysical properties of <strong>ADHA</strong> were extensively studied by DFT (Density Functional Theory) methods and spectroscopic analysis. It has been calculated that the detection limit of the formed complex is 6.26 nM. In addition, <sup>1</sup>H NMR titrations DFT calculations, and HRMS analysis were performed to understand the detection mechanism better. Test strip-aided detection and invisible ink applications confirmed that <strong>ADHA</strong> is a versatile sensor for sensitively detecting picric acid without sophisticated instruments. In addition, <strong>ADHA</strong> was implemented to detect PA in real water samples with remarkable recovery.</p></div>\",\"PeriodicalId\":426,\"journal\":{\"name\":\"Sensors and Actuators Reports\",\"volume\":\"6 \",\"pages\":\"Article 100177\"},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2023-10-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2666053923000401/pdfft?md5=dc9ee271531b158ab41117437af8ca54&pid=1-s2.0-S2666053923000401-main.pdf\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sensors and Actuators Reports\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2666053923000401\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BIOTECHNOLOGY & APPLIED MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators Reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2666053923000401","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOTECHNOLOGY & APPLIED MICROBIOLOGY","Score":null,"Total":0}
An AIE active imidazole conjugated α-cyanostilbene based sensor for the selective and sensitive detection of picric acid in an aqueous medium
Due to increasing pollution threats, terrorism-sensitive rapid sensing of aromatic nitro explosives (picric acid) has gained predominant significance in environmental safety. Herein, imidazole-derived monofunctional fluorescent sensor 2-(4-aminophenyl)-3-(3-(4,5-diphenyl-1H-imidazol-2-yl)-2-hydroxyphenyl) acrylonitrile (ADHA) was successfully developed for the selective recognition of explosive picric acid. The D-π-A configuration of ADHA facilitates extraordinary photophysical properties with remarkable aggregation-induced emission (AIE). The detection process is induced by the photon-induced electron transfer (PET) and resonance energy transfer (RET) and results in the generation of ADHA+PA complex. The structural relationship and the photophysical properties of ADHA were extensively studied by DFT (Density Functional Theory) methods and spectroscopic analysis. It has been calculated that the detection limit of the formed complex is 6.26 nM. In addition, 1H NMR titrations DFT calculations, and HRMS analysis were performed to understand the detection mechanism better. Test strip-aided detection and invisible ink applications confirmed that ADHA is a versatile sensor for sensitively detecting picric acid without sophisticated instruments. In addition, ADHA was implemented to detect PA in real water samples with remarkable recovery.
期刊介绍：
Sensors and Actuators Reports is a peer-reviewed open access journal launched out from the Sensors and Actuators journal family. Sensors and Actuators Reports is dedicated to publishing new and original works in the field of all type of sensors and actuators, including bio-, chemical-, physical-, and nano- sensors and actuators, which demonstrates significant progress beyond the current state of the art. The journal regularly publishes original research papers, reviews, and short communications.
For research papers and short communications, the journal aims to publish the new and original work supported by experimental results and as such purely theoretical works are not accepted.
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