期刊
RSC ADVANCES
卷 5, 期 28, 页码 21675-21680出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra00146c
关键词
-
资金
- Ministry of Education, Republic of Singapore
A simple and ultrasensitive platform for the detection of glucose and hydrogen peroxide based on fluorescence resonance energy transfer between carbon quantum dots (CQDs) and polyaniline is described in this report. Briefly, during enzymatic oxidization of glucose, hydrogen peroxide is generated. The generated hydrogen peroxide, in turn, initiates oxidative polymerization of aniline on the surface of the CQDs in the presence of horseradish peroxidase. And the formation of a thin polyaniline layer efficiently quenches the fluorescence of the CQDs. It was observed that the quenching of the fluorescence is directly associated with the concentration of glucose and ultrasensitive detection of glucose down to submicromolar levels was achieved. In addition, since the formation of polyaniline on the CQD surface is directly associated with hydrogen peroxide, it was found that traces of hydrogen peroxide can be detected in a range of 0.5-50 mu M with good selectivity.
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