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Innovative Dual-Emitting Ratiometric Fluorescence Sensor for Tetracyclines Detection Based on Boron Nitride Quantum Dots and Europium Ions
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-11-13 , DOI: 10.1021/acssuschemeng.0c05872 Kairong Yang 1 , Pei Jia 1 , Jinjie Hou 1 , Tong Bu 1 , Xinyu Sun 1 , Yingnan Liu 1 , Li Wang 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-11-13 , DOI: 10.1021/acssuschemeng.0c05872 Kairong Yang 1 , Pei Jia 1 , Jinjie Hou 1 , Tong Bu 1 , Xinyu Sun 1 , Yingnan Liu 1 , Li Wang 1
Affiliation
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On account of the excessive residues and serious detriments, it is imminent to develop an efficient method to determine tetracyclines (TCs) for protecting human health. In this work, a novel ratiometric fluorescence sensor was constructed for TCs based on a powerful boron nitride quantum dot and europium ion (BNQD-Eu3+) system. The blue-emitting BNQDs were synthesized via a facile hydrothermal route using boric acid and urea as precursors. When TCs were presented in the hybrid probe of BNQDs and Eu3+, blue fluorescence of BNQDs was quenched and red fluorescence of Eu3+ was enhanced, which can be attributed to the inner filter effect, photo-induced electron transfer, as well as the antenna effect. Besides, it was confirmed that the proposed sensor possessed good detection limits of 0.019, 0.104, and 0.028 μM for tetracycline (TET), oxytetracycline, and doxycycline, respectively. Additionally, the results of BNQD-Eu3+-based sensing of TET in milk and beef samples showed an insignificant difference from those of liquid chromatography–mass spectrometry. Moreover, the BNQD-Eu3+-based test paper was successfully used in the easy and visual detection of TCs by the naked eyes, indicating the practical applicability of the sensor.
中文翻译：
基于氮化硼量子点和Euro离子的四环素检测创新型双发射比率荧光传感器
由于存在过多的残留物和严重的危害，迫切需要开发一种有效的方法来确定保护人体健康的四环素（TC）。在这项工作中，基于强大的氮化硼量子点和euro离子（BNQD-Eu 3+）系统，为TCs构建了一种新型的比例荧光传感器。使用硼酸和尿素作为前体，通过便捷的水热途径合成了发蓝光的BNQD。当TCs出现在BNQDs和Eu 3+的杂交探针中时，BNQDs的蓝色荧光猝灭，Eu 3+的红色荧光消失。增强，这可以归因于内部滤波器效应，光感应电子转移以及天线效应。此外，已确认所提出的传感器对四环素（TET），土霉素和强力霉素的检测限分别为0.019、0.104和0.028μM。此外，基于BNQD-Eu 3+的牛奶和牛肉样品中TET的感测结果与液相色谱-质谱法相比无显着差异。此外，基于BNQD-Eu 3+的测试纸已成功用于肉眼轻松直观地检测TC，这表明该传感器具有实用性。
更新日期：2020-11-23
中文翻译：
基于氮化硼量子点和Euro离子的四环素检测创新型双发射比率荧光传感器
由于存在过多的残留物和严重的危害，迫切需要开发一种有效的方法来确定保护人体健康的四环素（TC）。在这项工作中，基于强大的氮化硼量子点和euro离子（BNQD-Eu 3+）系统，为TCs构建了一种新型的比例荧光传感器。使用硼酸和尿素作为前体，通过便捷的水热途径合成了发蓝光的BNQD。当TCs出现在BNQDs和Eu 3+的杂交探针中时，BNQDs的蓝色荧光猝灭，Eu 3+的红色荧光消失。增强，这可以归因于内部滤波器效应，光感应电子转移以及天线效应。此外，已确认所提出的传感器对四环素（TET），土霉素和强力霉素的检测限分别为0.019、0.104和0.028μM。此外，基于BNQD-Eu 3+的牛奶和牛肉样品中TET的感测结果与液相色谱-质谱法相比无显着差异。此外，基于BNQD-Eu 3+的测试纸已成功用于肉眼轻松直观地检测TC，这表明该传感器具有实用性。
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