Ultrasensitive Electrochemiluminescence Aptamer Sensor Based on Ru@ZIF-Pd Cathode for Acetamiprid Detection.

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-12-08 DOI:10.1021/acsabm.4c01487

Mingyue Shao, Cuili Kong, Yilin Long, Wenbin Jiang, Huan Wang, Xiang Ren, Jinxiu Zhao, Qin Wei

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引用次数: 0

Abstract

Ru(bpy)₃²⁺ is commonly used in electrochemiluminescence (ECL) as a conventional luminophore. However, Ru(bpy)₃²⁺ can leak off the electrode surface, resulting in a reduced ECL signal. In this work, a nanocube composite material Ru@ZIF was prepared by incorporating doping luminescent Ru(bpy)₃²⁺ into the skeleton of Zn(II) ions and 2-methylimidazole (2-MI), and the ECL probe Ru@ZIF-Pd was prepared by in situ growth of Pd nanoparticles (Pd NPs). Potassium persulfate (K₂S₂O₈) was used as a coreactant to investigate the cathodic ECL behavior. The ZnCoCH@MXene-Au (ZC@T-Au) was used as a coreactant accelerator to promote the production of SO₄^•-, which effectively amplified the ECL intensity of Ru@ZIF-Pd. Under optimal experimental conditions, we successfully constructed an aptamer ECL sensor, which achieves an accurate detection of acetamiprid from 0.1 fM to 10 μM with a detection limit of 0.029 fM. It provides a potential idea for the detection of pesticide residues in food.

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.