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以氧空隙为媒介的低电位电化学发光成像,用于对Diazinon的敏感分析

Zhuangzhuang Ru¹, Xu Sun¹, Xue Dong¹

¹Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.

Analytical chemistry

|October 17, 2025

概括

使用富含氧气空位的FeNi分层双氧化物 (FeNi-LDH-VO) 的新型核心活性剂加速方法增强了电化学发光 (ECL) 信号. 这种方法可以在新型的ECL生物传感器中灵敏地检测甲 (DZN) 农药.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
分析化学分析化学

背景情况:

在生物分析和临床诊断领域,对高效的低功率电化学发光 (ECL) 系统的需求正在增长.
开发新的材料和策略来提高ECL的效率对于推进这些领域至关重要.

研究的目的:

为低电位ECL系统开发一种新的核心活性剂加速方法.
设计一个ECL成像生物传感器,用于敏感和特定检测diazinon (DZN).

主要方法:

合成的FeNi分层双氧化物,富含氧气空缺 (FeNi-LDH-VO).
集成的FeNi-LDH-VO与Zr-porphyrin金属有机框架 (Zr-MOF),以创建一个ECL系统.
研究了激素生成和ECL增强的机制.
设计了一个ECL成像生物传感器,利用DNA酶催化裂变用于DZN检测.

主要成果:

该FeNi-LDH-VO系统在0.8V时显示出强烈的ECL信号.
在FeNi-LDH-VO中空缺的氧气促进了过氧二硫酸盐的激活,产生了活性基 (SO4•−和•OH).
对于DZN,ECL生物传感器实现了宽线性范围 (0.15.0 × 103 nM) 和低检测极限 (7.6 pM).
在DZN检测方面表现出卓越的特异性和可重复性.

结论:

使用FeNi-LDH-VO的核心活性剂加速策略有效地提高了ECL性能.
开发的ECL生物传感器显示了可视检测食品标记物的巨大潜力,如DZN.

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