Chitosan functionalized nitrogen-doped carbon dot nanocomposites: a turn-on sensor for fluoride detection.

ABSTRACT: The fluoride anion plays a vital role in human health by preventing dental caries and enhancing bone strength. However, excessive intake beyond the permissible limit poses a serious health risk. This underscores the critical need for accurate and routine monitoring of fluoride levels in water supplies. Traditional methods of fluoride detection are associated with many limitations and high hydration enthalpy of fluoride (ΔH = -504 kJ mol^-1), which additionally makes it challenging to design effective aqueous-phase fluorescent probes for fluoride. In this study, we report chitosan-functionalized N-doped carbon dots (N-CDs@C) as an environmentally friendly, cost-effective, and fluorescent probe for the selective and sensitive detection of fluoride ions in aqueous media. The

SUBMITTER: Sujal 

PROVIDER: S-EPMC12442973 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature