Fluorescence sensor based on molecularly imprinted polymer and bimetallic Tb/Ce MOF for sensitive detection of thiamethoxam

IF 4.6 2区化学 Q1 SPECTROSCOPY

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2025-09-29 DOI:10.1016/j.saa.2025.127005

Xinzhuang Wei , Yaming Zhao , Huifeng Zhang , Qiong Jia

引用次数: 0

Abstract

With the extensive use of neonicotinoid pesticides like thiamethoxam (TMX), there is a growing need to develop sensitive and selective methods to monitor its residue levels. In this study, we developed a fluorescence sensor based on terbium/cerium metal-organic framework combined with molecularly imprinted polymer (Tb/Ce MOF@MIP) for TMX detection. Through systematic optimization of synthesis conditions and detection conditions, the sensor was successfully employed for the determination of TMX, exhibiting high selectivity, along with a linear detection range of 1–50 μM and a limit of detection of 0.8 μM. In addition, the practical applicability of the sensor was validated in real samples including apples, tea, and soil, and the accuracy was assessed through recovery experiments.

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基于分子印迹聚合物和双金属Tb/Ce MOF的荧光传感器对噻虫嗪的灵敏检测。

随着噻虫嗪（TMX）等新烟碱类农药的广泛使用，越来越需要开发敏感和选择性的方法来监测其残留水平。在这项研究中，我们开发了一种基于铽/铈金属有机框架结合分子印迹聚合物（Tb/Ce MOF@MIP）的荧光传感器用于TMX检测。通过对合成条件和检测条件的系统优化，该传感器成功用于TMX的测定，具有较高的选择性，线性检测范围为1 ~ 50 μM，检出限为0.8 μM。此外，在苹果、茶叶、土壤等实际样品中验证了传感器的实用性，并通过回收率实验评估了传感器的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 物理-光谱学

CiteScore

8.40

自引率

11.40%

发文量

1364

审稿时长

40 days

期刊介绍： Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (SAA) is an interdisciplinary journal which spans from basic to applied aspects of optical spectroscopy in chemistry, medicine, biology, and materials science. The journal publishes original scientific papers that feature high-quality spectroscopic data and analysis. From the broad range of optical spectroscopies, the emphasis is on electronic, vibrational or rotational spectra of molecules, rather than on spectroscopy based on magnetic moments. Criteria for publication in SAA are novelty, uniqueness, and outstanding quality. Routine applications of spectroscopic techniques and computational methods are not appropriate. Topics of particular interest of Spectrochimica Acta Part A include, but are not limited to: Spectroscopy and dynamics of bioanalytical, biomedical, environmental, and atmospheric sciences, Novel experimental techniques or instrumentation for molecular spectroscopy, Novel theoretical and computational methods, Novel applications in photochemistry and photobiology, Novel interpretational approaches as well as advances in data analysis based on electronic or vibrational spectroscopy.