Electrochemical sensor for sensitive detection of bisphenol A based on molecularly imprinted TiO2 with oxygen vacancy

被引：26

作者：

Liu, Yu-Huan ^{[1
]}

Liu, Chang ^{[1
]}

Wang, Xin-Hui ^{[1
]}

Li, Tong ^{[1
]}

Zhang, Xing ^{[1
]}

机构：

[1] Anhui Univ, Inst Phys Sci & Informat Technol, Informat Mat & Intelligent Sensing Lab Anhui Prov, Hefei 230601, Peoples R China

来源：

BIOSENSORS & BIOELECTRONICS | 2023年 / 237卷

基金：

中国国家自然科学基金;

关键词：

Molecular imprinting; Oxygen vacancies; TiO2; Bisphenol A; Electrochemical sensor; Reproducibility; NANOTUBE ARRAYS; DEGRADATION;

D O I：

10.1016/j.bios.2023.115520

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Bisphenol A (BPA) is an endocrine disrupting chemical and broadly used in plastics. The leakage of BPA in food and water cycles poses a significant risk to the environment and human health. Thus, monitoring the concentration of BPA to avoid its potential risk is highly important. In this work, a simple and efficient oxygen deficient molecularly imprinted TiO2 electrochemical sensor was proposed for the detection of BPA. The introduction both oxygen vacancies and molecular imprinting evidently enhanced the electrochemical oxidation signal of BPA. The sensor had a good linear response ranging from 0.01 & mu;M to 20 & mu;M with a limit of detection of 3.6 nM. Additionally, the sensor showed remarkable stability, reproducibility and interference resistant ability. It also exhibits excellent recovery during the detection of real water. These findings suggested that the sensor has the potential to be developed as a simple, efficient and low-cost monitoring system for the monitoring of BPA in water.

引用

页数：7

共 38 条

[1]

Alam A. U., 2018, Sens. Actuators B, V254, P896

[2] Bisphenol A Electrochemical Sensor Using Graphene Oxide and β-Cyclodextrin-Functionalized Multi-Walled Carbon Nanotubes [J].