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首页> 外文期刊>Chemistry: A European journal >Aggregation-Induced Emission Active Probe for Light-Up Detection of Anionic Surfactants and Wash-Free Bacterial Imaging
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Aggregation-Induced Emission Active Probe for Light-Up Detection of Anionic Surfactants and Wash-Free Bacterial Imaging

机译：聚集诱导发射活性探针，用于阴离子表面活性剂的光亮检测和免洗细菌成像

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摘要

Anionic surfactants are widely used in daily life and industries, but their residues can cause serious damage to the environment. The current detection methods for anionic surfactants suffer from various limitations and a new detection strategy is highly desirable. Based on 2-(2-hydroxyphenyl)benzothiazole fluorogen with aggregation-induced emission characteristics, we have developed a fluorescent probe HBT-C-18 for selective and sensitive detection of anionic surfactants. By in situ formation of catanionic aggregates or micelles with anionic surfactants, the emission intensity of the HBT-C-18 probe can increase with increasing keto/enol emission ratio through restriction of intramolecular motion and excited-state intramolecular proton-transfer mechanisms. The probe can also be used for wash-free imaging of bacteria enveloped by a negatively charged outer membrane. The results of this study provide a new strategy for sensitive detection of anionic surfactants and wash-free bacterial imaging.
机译：阴离子表面活性剂广泛用于日常生活和工业中，但其残留物会严重破坏环境。当前用于阴离子表面活性剂的检测方法受到各种限制，并且非常需要一种新的检测策略。基于具有聚集诱导发射特性的2-（2-羟苯基）苯并噻唑氟，我们开发了一种用于选择性和灵敏检测阴离子表面活性剂的荧光探针HBT-C-18。通过与阴离子表面活性剂原位形成阳离子聚集体或胶束，HBT-C-18探针的发射强度可通过限制分子内运动和激发态分子内质子转移机制而随着酮/烯醇发射比的增加而增加。该探针还可用于带负电外膜包裹的细菌的免洗成像。这项研究的结果为敏感检测阴离子表面活性剂和免洗细菌成像提供了新的策略。

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