1D/3D MOF-919-Sc网络八面体衍生2D/3D Sc2O3@CuO用于极性可切换光电化学传感的层状八面体。

IF 6.7 1区化学 Q1 CHEMISTRY, ANALYTICAL

Analytical Chemistry Pub Date : 2025-06-25 DOI:10.1021/acs.analchem.5c02283

Wenchao Geng,Huimin Liu,Xinxin Yuan,Jiangying Ji,Zhiyi Yan,Ruiying Yang

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引用次数: 0

摘要

设计一种多维极性可切换材料，以实现全方位的传输和综合效益，这将为传感提供一种先进的切换器。本文首次报道了通过简单碳化一维/三维掺钪MOF-919 （MOF-919- sc）网状八面体合成二维/三维Sc2O3@CuO层状八面体。基于合成的Sc2O3@CuO层状八面体诱导TiO2十二面体的光电流-极性开关，结合靶触发酶裂解辅助信号放大，构建了一种用于检测卡那霉素（Kana）的新型极性可切换光电化学（PEC）传感器。该传感器具有较高的选择性和灵敏度，线性范围为0.1 ~ 500 pM，检测限为26 fM。重要的是，我们提出了Sc掺杂MOF-919来增加mof的尺寸，而简单碳化来改变尺寸，这为融合多维、高性能的极性可切换材料提供了新的思路。这种2D/3D Sc2O3@CuO基于层状八面体的PEC传感器具有准确检测微量抗生素残留物和其他小分子的巨大潜力。

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1D/3D MOF-919-Sc Networked Octahedron-Derived 2D/3D Sc2O3@CuO Layered Octahedron for Polarity-Switchable Photoelectrochemical Sensing.

Engineering a multidimensional polarity-switchable material to achieve the full range of transportation and comprehensive benefits is highly expected, which should provide an advanced switcher for sensing. This work, for the first time, reports the synthesis of the 2D/3D Sc2O3@CuO layered octahedron through simple carbonization of a 1D/3D scandium-doped MOF-919 (MOF-919-Sc) networked octahedron. Based on the as-synthesized 2D/3D Sc2O3@CuO layered octahedron-induced photocurrent-polarity switching of a TiO2 dodecahedron, a novel polarity-switchable photoelectrochemical (PEC) sensor is constructed for the detection of kanamycin (Kana), combined with target-triggered enzyme cleavage-assisted signal amplification. The fabricated PEC sensor shows high selectivity and sensitivity with a linear range of 0.1-500 pM and a detection limit of 26 fM. Importantly, we propose the Sc doping MOF-919 to increase the dimensionalities of MOFs, and simply carbonizing to change the dimensionality, which offers a new idea to fuse a multidimensional, high-performance polarity-switchable material. This 2D/3D Sc2O3@CuO layered octahedron-based PEC sensor holds great potential for accurate detection of trace antibiotic residues and other small molecules.

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来源期刊

Analytical Chemistry 化学-分析化学

CiteScore

12.10

自引率

12.20%

发文量

1949

审稿时长

1.4 months

期刊介绍： Analytical Chemistry, a peer-reviewed research journal, focuses on disseminating new and original knowledge across all branches of analytical chemistry. Fundamental articles may explore general principles of chemical measurement science and need not directly address existing or potential analytical methodology. They can be entirely theoretical or report experimental results. Contributions may cover various phases of analytical operations, including sampling, bioanalysis, electrochemistry, mass spectrometry, microscale and nanoscale systems, environmental analysis, separations, spectroscopy, chemical reactions and selectivity, instrumentation, imaging, surface analysis, and data processing. Papers discussing known analytical methods should present a significant, original application of the method, a notable improvement, or results on an important analyte.