Portable ratiometric fluorescence sensor based on CuNCs@EuMOFs for visual detection of Hg(ii) in water samples.

ABSTRACT: Mercury ions (Hg²⁺) are highly toxic and bioaccumulative, posing a serious threat to the environment and human health. Traditional analytical techniques are limited by cost, portability and real-time monitoring capabilities, and there is an urgent need for sensitive and portable detection methods. In this study, copper nanoclusters (CuNCs) were encapsulated in red-emitting europium metal-organic frameworks (Eu-MOFs), and a ratiometric fluorescence probe based on CuNCs@EuMOFs was constructed and used for the detection of Hg²⁺ in water extracts of traditional Chinese medicine samples and river samples. In the presence of Hg²⁺, the fluorescence of this probe is enhanced at 450 nm and weakened at 618 nm. Visual quantification can be performed using a smart phon

SUBMITTER: Tian J 

PROVIDER: S-EPMC12442581 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature