期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 370, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2022.132442
关键词
Nanozyme; Conducting polymer; Biosensing; Glutathione; Particle-in-tube
资金
- National Natural Science Foundation of China [51973079]
This study presents a new strategy to construct high-efficiency nanozymes by preparing a particle-in-tube structured nanotube. The nanozymes exhibit boosted peroxidase-like properties and excellent stability. Additionally, a catalase-like property is achieved, and a rapid colorimetric sensing platform to detect glutathione is established.
Nanozymes are a new type of enzymes with ultrahigh environmental stability while facing the issues of low activity and poor specificity. Fabricating a confined structure has been verified to be an ideal strategy to optimize the catalytic performance of nanozymes. In this study, a particle-in-tube structured NiO/CoO/polypyrrole (PPy) is prepared via an electrospinning, calcination, vapor-phase deposition and thermal reduction route. Due to the novel confined structure and synergistic effect between different components, the boosted peroxidase (POD)-like properties are revealed. Furthermore, the prepared NiO/CoO/PPy nanotubes exhibit excellent long-term stability and multi-batch reproducibility for POD mimicking. In addition, a catalase (CAT)-like property is also achieved. Based on its desirable POD-like performance, a rapid colorimetric sensing platform to detect glutathione (GSH) is established with a low detection limit of 0.02 mu M (S/N = 3) and favorable selectivity. We believe that this work presents a new strategy to construct high-efficiency nanozymes and excavates its potential in biosensing application.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据