<br>荧光 MOF 及其合成的 MOF@棉复合材料：维生素 B2 和抗生素药物分子的比率传感,Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

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荧光 MOF 及其合成的 MOF@棉复合材料：维生素 B2 和抗生素药物分子的比率传感
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy ( IF 4.3 ) Pub Date : 2024-03-27 , DOI: 10.1016/j.saa.2024.124194
Meetkumar Y Chaudhary ₁ , Dashrathbhai B Kanzariya ₁ , Anirban Das ₁ , Tapan K Pal ₂

Affiliation

在这里，我们演示了锌基发光 MOF（NDC = 2,6-萘二甲酸）的合成，用于水分散介质中生物标志物核黄素（RBF；维生素 B）的比例检测。此外，该 MOF 还检测到了另外两种抗生素药物分子：呋喃妥因 (NFT) 和呋喃西林 (NZF)。这些分析物的检测速度非常快（约秒），RBF、NZF 和 NFT 的检测限 (LOD) 经计算分别为 16.58 ppm、47.63 ppb 和 56.96 ppb。这些分析物的检测还可以通过固体、溶液、经济高效的纸条法（即三相识别能力）来实现。该传感器可重复使用而不会失去其检测功效。该传感器进一步显示了这些抗生素在实际现场样品（河水、尿液和片剂）以及维生素 B 药片和食品样品（牛奶和冷饮）中 RBF 的识别能力。其传感优点促使我们制造@cotton织物复合材料，该复合材料展示了这些分析物的比色检测。深入的实验分析表明，光诱导电子转移（PET）、荧光共振能量转移（FRET）和内过滤效应（IFE）的发生是识别抗生素药物的可能传感机制。 FRET机制负责RBF的识别。理论分析和激发寿命测量进一步支持了传感机制。

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A fluorescent MOF and its synthesized MOF@cotton composite: Ratiometric sensing of vitamin B2 and antibiotic drug molecule

Here, we demonstrated the synthesis of a zinc based luminescent MOF, (NDC = 2,6- naphthalenedicarboxylate) for the ratiometric detection of biomarker riboflavin (RBF; vitamin B) in water dispersed medium. Further, this MOF detected two other antibiotic drug molecules, nitrofurantoin (NFT) and nitrofurazone (NZF). The detection of these analytes is very quick (∼seconds), and the limit of detection (LOD) for RBF, NZF and NFT are calculated as 16.58 ppm, 47.63 ppb and 56.96 ppb, respectively. The detection of these analytes was also comprehended by solid, solution, cost-effective paper strip method i.e., triphasic identification capabilities. The sensor is reusable without losing its detection efficacy. The sensor further showed the recognition abilities of these antibiotics in real field samples (river water, urine and tablet) and RBF in vitamin B pills and food samples (milk and cold drinks). The sensing merit of urged us to fabricate of @cotton fabric composite, which exhibited the colorimetric detection of these analytes. In-depth experimental analysis suggested that the occurrence of photo-induced electron transfer (PET), fluorescence resonance energy transfer (FRET), and the inner filter effect (IFE) are the possible sensing mechanisms for the recognition of the antibiotics drug. The FRET mechanism is responsible for the recognition of RBF. The sensing mechanism is further supported by the theoretical analysis and the excited lifetime measurement.

更新日期：2024-03-27

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