分子印迹聚合物
材料科学
电化学气体传感器
纳米颗粒
电极
化学
双酚A
荧光
扫描电子显微镜
再现性
纳米化学
电化学
纳米技术
分子印迹
分析化学(期刊)
核化学
选择性
色谱法
有机化学
复合材料
环氧树脂
光学
催化作用
物理化学
物理
作者
Abdelmoneim Mars,Alma Mejri,Ahmed Hichem Hamzaoui,Hamza Elfil
标识
DOI:10.1007/s00604-021-04753-w
摘要
A molecularly imprinted paper-based analytical device (MIP-μPAD) was developed for the sensing of bisphenol A (BPA). The platform was screen-printed onto a filter paper support, where the electrodes and the fluorescence μPADs were designed. Owing to its dual electrochemical and fluorescence responses, molecularly imprinted curcumin nanoparticles were used to sense BPA. The μPAD design was characterized by transmission electron microscopy, scanning electron microscopy, fluorescence spectroscopy, and electrochemical techniques. The sensor design comprised a wide linear range from 1 to 200 μg L−1 with limits of detection of 0.47 ± 0.2 and 0.62 ± 0.3 μg L−1 (LOD, S/N = 3) for electrochemical and fluorescence sensing, respectively. Furthermore, the system showed good analytical performance such as selectivity, stability, and reproducibility. The feasibility of the MIP-μPAD was demonstrated for the sensing of BPA in seawater, foods, and polycarbonate plastic packaged water with recovery values of 97.2 and 101.8%.
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