Lanthanide MOF-based luminescent sensor array for detection and identification of contaminants in water and biomarkers.

IF 5.6 1区化学 Q1 CHEMISTRY, ANALYTICAL

Talanta Pub Date : 2025-01-01 Epub Date: 2024-09-20 DOI:10.1016/j.talanta.2024.126853

Wenxi Zhang, Jing Sun, Xiao Li, Sibo Wang, Weitao Zhang, Yaru Gong, Lei Liu, Zhongmin Su

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引用次数: 0

Abstract

In today's society, heavy metal ions and antibiotic contaminants have caused great harm to water systems and human health. In this study, six isostructural lanthanide metal-organic frameworks [Ln(H₃imda)₂(TPA)(H₂O)₂](Tb for CUST-881, Eu for CUST-882, Dy for CUST-883, Er for CUST-884, Nd for CUST-885, Sm for CUST-886) were constructed by selecting terephthalic acid (TPA) and 4,5-Imidazoledicarboxylic acid (H₃imda) and lanthanide metal ions via solvethermal method. Among them, CUST-881 and CUST-882 can selectively detect Fe³⁺, Cr₂O₇^2-, CrO₄², and ceftriaxone sodium (CRO) in water systems and uric acid in urine. CUST-881 shows very low detection limits for these five substances. Furthermore, Principal Component Analysis (PCA) was used to distinguish Fe³⁺, Cr₂O₇^2-, CrO₄^2-, and CRO in water. To our knowledge, this is the first time that they have been able to be simultaneously distinguished. In addition, the possible sensing mechanism was studied through UV-visible spectroscopy, Infrared spectroscopy, and PXRD analysis. Furthermore, the probe also showed satisfactory repeatability and recovery when applied to UA samples that simulated urine. Based on the above results, lanthanide metal-organic frameworks have great potential for practical monitoring of contaminants in water environments.

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基于镧系元素 MOF 的发光传感器阵列，用于检测和识别水中污染物及生物标记物。

在当今社会，重金属离子和抗生素污染物对水系和人类健康造成了巨大危害。本研究通过选择对苯二甲酸（TPA）构建了六种等结构的镧系金属有机框架[Ln(H3imda)2(TPA)(H2O)2]（CUST-881 为铽元素，CUST-882 为铕元素，CUST-883 为镝元素，CUST-884 为铒元素，CUST-885 为钕元素，CUST-886 为钐元素）、CUST-881为Eu，CUST-882为Eu，CUST-883为Dy，CUST-884为Er，CUST-885为Nd，CUST-886为Sm）。其中，CUST-881 和 CUST-882 可选择性地检测水系统中的 Fe3+、Cr2O72-、CrO42 和头孢曲松钠（CRO）以及尿液中的尿酸。CUST-881 对这五种物质的检测限非常低。此外，还使用主成分分析法（PCA）来区分水中的 Fe3+、Cr2O72-、CrO42- 和 CRO。据我们所知，这是首次能够同时区分这五种物质。此外，我们还通过紫外可见光谱、红外光谱和 PXRD 分析研究了可能的传感机制。此外，该探针在应用于模拟尿液的 UA 样品时也显示出令人满意的重复性和回收率。基于上述结果，镧系元素金属有机框架在实际监测水环境污染物方面具有巨大潜力。

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

Talanta 化学-分析化学

CiteScore

12.30

自引率

4.90%

发文量

861

审稿时长

29 days

期刊介绍： Talanta provides a forum for the publication of original research papers, short communications, and critical reviews in all branches of pure and applied analytical chemistry. Papers are evaluated based on established guidelines, including the fundamental nature of the study, scientific novelty, substantial improvement or advantage over existing technology or methods, and demonstrated analytical applicability. Original research papers on fundamental studies, and on novel sensor and instrumentation developments, are encouraged. Novel or improved applications in areas such as clinical and biological chemistry, environmental analysis, geochemistry, materials science and engineering, and analytical platforms for omics development are welcome. Analytical performance of methods should be determined, including interference and matrix effects, and methods should be validated by comparison with a standard method, or analysis of a certified reference material. Simple spiking recoveries may not be sufficient. The developed method should especially comprise information on selectivity, sensitivity, detection limits, accuracy, and reliability. However, applying official validation or robustness studies to a routine method or technique does not necessarily constitute novelty. Proper statistical treatment of the data should be provided. Relevant literature should be cited, including related publications by the authors, and authors should discuss how their proposed methodology compares with previously reported methods.