4.6 Article

Integration of Metal-Organic Frameworks with Bi-Nanoprobes as Dual-Emissive Ratiometric Sensors for Fast and Highly Sensitive Determination of Food Hazards

期刊

MOLECULES
卷 27, 期 7, 页码 -

出版社

MDPI
DOI: 10.3390/molecules27072356

关键词

ZIF-67; heavy metal ions; food-safety; ratiometric fluorescence

资金

  1. National Natural Science Foundation of China [32102068]

向作者/读者索取更多资源

In this study, a dual-emission metal-organic framework-based ratiometric fluorescence probe was developed for rapid and simple detection of Cu2+ and Pb2+. The novel CQDs/QDs@ZIF-67 composite exhibited significantly aligned ratiometric fluorescence signal with the concentration of metal ions, achieving an extremely low detection limit. It showed potential for rapid and cost-effective detection of these two metal ions.
Functional nanoprobes which detect specific food hazards quickly and simply are still in high demand in the field of food-safety inspection research. In the present work, a dual-emission metal-organic framework-based ratiometric fluorescence probe was integrated to detect Cu2+ and Pb2+ with rapidness and ease. Specifically, quantum dots (QDs) and carbon quantum dots (CQDs) were successfully embedded into zeolitic imidazolate framework-67 (ZIF-67) to function as a novel ratiometric fluorescent sensing composite. The ratiometric fluorescence signal of CQDs/QDs@ZIF-67 was significantly aligned with the concentration of metal ions to give an extremely low detection limit of 0.3324 nM. The highly sensitive and selective CQDs/QDs@ZIF-67 composite showed potential for the rapid and cost-effective detection of two metal ions.

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。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据