Design and preparation of a sensitive electrochemical aptasensor based on hierarchical porous UiO-66 for detecting ampicillin

被引：2

作者：

Zhang, Shan ^{[1
]}

Li, Ping ^{[1
]}

Xu, Mingkai ^{[1
]}

Xi, Jie ^{[1
]}

Kong, Xinying ^{[1
]}

He, Hongming ^{[1
,2
]}

Du, Shuting ^{[1
]}

Li, Cheng-Peng ^{[1
]}

Guo, Feng ^{[2
]}

机构：

[1] Tianjin Normal Univ, Acad Interdisciplinary Studies Intelligent Mol, Coll Chem, Tianjin Key Lab Struct & Performance Funct Mol, Tianjin 300387, Peoples R China

[2] Youjiang Med Univ Nationalities, Sch Lab Med, Baise 533000, Guangxi, Peoples R China

来源：

MICROCHEMICAL JOURNAL | 2024年 / 206卷

关键词：

Metal-organic framework; Hierarchical porous structure; Electrochemical detection; Aptasensor; Ampicillin; METAL-ORGANIC FRAMEWORKS; ASSAY;

D O I：

10.1016/j.microc.2024.111581

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Hierarchical porous UiO-66 (HP-UiO-66) was rationally prepared using sodium acetate and polyvinylpyrrolidone as auxiliaries. The defective structure of HP-UiO-66 was confirmed by various characterization methods. Compared with the pristine UiO-66, HP-UiO-66 possessed more accessible Zr sites to load aptamers. The electrochemical aptasensor based on HP-UiO-66 was used to detect ampicillin (AMP) as an analytical model with a low limit of detection (3.0 fg mL(-1)) by differential pulse voltammetry. This fabricated aptasensor exhibited good reproducibility, stability, and specificity toward AMP. The sensor could be used to quantitatively detect AMP even in real samples (tap water and milk).

引用

页数：9

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