State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
School of Chemistry and Environmental Engineering, Lanzhou City University, Lanzhou 730070, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2017 Jun 5;180:199-203. doi: 10.1016/j.saa.2017.03.017. Epub 2017 Mar 7.
A simple ratiometric fluorescent sensor for fructose was presented. It consisted of 10-hydroxybenzo[h]quinoline (HBQ) which showed emission at 572nm and 3-pyridylboronic acid (PDBA) whose complex with HBQ gave emission at 500nm. The reaction of fructose with PDBA inhibited the complexation of HBQ with PDBA, resulting in the change of dual-emission intensity ratio. The sensor well quantified fructose in the range of 0.015-2.5mM with detection limit of 0.005mM. Besides, this sensor exhibited excellent selectivity and was successfully applied to fructose detection in food. This work provides a simple ratiometric sensing platform for sensitive and selective detection of fructose.
本文提出了一种用于检测果糖的简单比率荧光传感器。该传感器由 10-羟基苯并[h]喹啉（HBQ）和 3-吡啶硼酸（PDBA）组成，HBQ 在 572nm 处有发射峰，而与 HBQ 形成复合物的 PDBA 在 500nm 处有发射峰。果糖与 PDBA 的反应抑制了 HBQ 与 PDBA 的复合物形成，导致双发射强度比发生变化。该传感器可在 0.015-2.5mM 的范围内对果糖进行定量检测，检测限为 0.005mM。此外，该传感器表现出优异的选择性，并成功应用于食品中果糖的检测。这项工作为果糖的灵敏选择性检测提供了一种简单的比率传感平台。
