期刊
ANALYTICAL CHEMISTRY
卷 92, 期 18, 页码 12716-12724出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.0c03275
关键词
-
资金
- National Nature Science Foundation of China [21806051, 31901777, 61831011, 61722305, 61833006]
- Natural Science Foundation of Jilin Province [20200201021JC, 20200201218JC]
- Scientific and Technological 13th Five-Year Plan Project of Jilin Provincial Department of Education [JJKH20190111KJ, JJKH20201010KJ]
- National Key Research and Development Program of China [2016YFC0207300]
- Program for JLU Science and Technology Innovative Research Team [JLUSTIRT 2017TD-07]
On-site quantitative analysis of pesticide is of significant importance for addressing serious public health issues in clinical, food, and environmental settings. Herein, we designed a novel smartphone-assisted sensing platform for on-site monitoring of 2,4-dichlorophenoxyacetic acid (2,4-D) based on carbon dots/cobalt oxyhydroxide nanosheet (CDs/CoOOH) composite. In this work, a red emissive CDs/CoOOH composite was proposed as a signal indicator for shielding background interference, enhancing anti-interference capability. 2,4-D as an inhibitor of alkaline phosphatase could specifically suppress the production of ascorbic acid, which restrained in situ etching of the CDs/CoOOH composite and further triggered the fluorescence response of the biosensor. By employing a lab-on-smartphone based device and self-designed application software, the fluorescence image was directly captured and analyzed with a sensitive detection limit of 100 mu g L-1 for 2,4-D. Merging the CDs/CoOOH composite-based fluorometric system with the smartphone-assisted optical reader, such a cost-effective and portable platform provided a new sight for on-site monitoring of pesticide and expanded application prospect in the field of biological analysis.
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