Green Synthesis of N,S-Doped Carbon Dots from the Giloy Stem for Fluorimetry Detection of 4-Nitrophenol, Triple-Mode Detection of Congo Red, and Antioxidant Applications.

ABSTRACT: Synthesis of doped carbon dots (CDs) with enhanced fluorescence properties from green precursors has gained considerable attention due to their multipotential applications such as chemical as well as biosensing, photocatalysis, electrocatalysis, drug delivery, and bioimaging applications. Here, we have prepared highly fluorescent N,S-doped CDs (N,S-CDs) using a single natural precursor, the Giloy stem, by a hydrothermal method to explore their multipotential applications. These N,S-CDs were demonstrated as fluorescent probes for the selective detection of toxic organic pollutants that include 4-nitrophenol (4-NP) and congo red (CR) with limits of detection (LODs) of 380 and 62 nM, respectively. The fluorescence quenching observed in N,S-CDs was the result of the inner filter effect (IFE).

SUBMITTER: Swain S 

PROVIDER: S-EPMC11840780 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature