Ru3+@Cu-MOF(-NH2)/Au界面的原位组构及电化学性能研究-中国材料进展

文章信息/Info

Title:: In-Situ Fabrication and Electrochemical Properties of Ru3+@Cu-MOF(-NH2)/Au Interface

作者:: 任超; 张瑞敏; 韩贤达; 刘霞霞; 高琦; 张志琴; 焦鑫; 孙燕; 1. 山西工学院材料工程学院，山西朔州 036000 2. 中北大学电力学院，山西朔州 036000 3. 山西工学院能源工程学院，山西朔州 036000

Author(s):: REN Chao; ZHANG Ruimin; HAN Xianda; LIU Xiaxia; GAO Qi; ZHANG Zhiqin; JIAO Xin; SUN Yan; 1. School of Materials Engineering, Shanxi College of Technology, Shuozhou 036000，China 2. School of Electric Power, North University of China, Shuozhou 036000，China et al.

Keywords:: MOF; in-situ fabrication; interface; electrochemical aptasensor; antibiotics

摘要:: 基于Cu-MOF导电材料，建立了Ru3+@Cu-MOF(-NH2)/Au界面的电化学原位组构方法，并对其电化学性能进行了全信息表征。以RuCl3为中心分子、2氨基对苯二甲酸为配体，采用电化学阳极合成法构建了Ru3+@Cu-MOF(-NH2)/Au界面，采用方波伏安法和循环伏安法分别考察了该界面对亚甲基蓝（MB）的电化学响应性能。结果表明，该界面对MB的检测限为4.2 pmol/L，线性范围为10.0 pmol/L~100.0 nmol/L，证明了该界面对MB具有优异的电化学响应性能。将该界面应用于组构卡那霉素（Kan-A）电化学适体传感器后，研究发现该传感器对Kan-A的灵敏度为0.06，检测限为12.3 pmol/L，线性范围为10.0 pmol/L~100.0 nmol/L。且该传感器能显著区分盘尼西林（Pen-G）、四环素（TET）、阿莫西林（AMO）、磺胺对甲氧基嘧啶（SMZ）4种抗生素，展现出优异的电化学传感性能，可用于实际体系中KanA的定量检测。

Abstract:: Based on Cu-MOF conductive materials, an in-situ electrochemical fabrication method for Ru3+@Cu-MOF(-NH2)/Au interface was established and its electrochemical properties were fully characterized. Utilizing RuCl3 as the central molecule and 2-aminoterephthalic acid as the ligand, the Ru3+@CuMOF(-NH2)/Au was formed through electrochemical anodic synthesis. The electrochemical response performance of the interface to methylene blue (MB) was investigated by square wave voltammetry (SWV) and cyclic voltammetry (CV). The results show that the detection limit of the interface to MB is 4.2 pmol/L, and the linear range is 10.0 pmol/L~100.0 nmol/L, which proves that the interface has excellent electrochemical response performance to MB. After applying it to the electrochemical aptasensor for Kanamycin (Kan-A), it’s found that the sensitivity of the sensor to Kan-A is 0.06, the detection limit is 12.3 pmol/L, and the linear range is 10.0 pmol/L~100.0 nmol/L. The sensor can significantly distinguish the four antibiotics of penicillin (Pen-G), tetracycline (TET), amoxicillin (AMO) and sulfamethoxypyrimidine (SMZ), showing excellent electrochemical sensing performance and can be used for the quantitative detection of Kan-A in the actual system.