Carbon Dots-Based Fluorescent Sensor for Glyphosate Detection Via Fe³⁺-Mediated Fluorescence Quenching and Recovery.

ABSTRACT: In this work, four different carbon dots (CDs) were synthesized by hydrothermal carbonization, each from a distinct low molar mass carbon source (ascorbic, citric, maleic, or succinic acid) in combination with the same nitrogen source (ammonium citrate). The carbon nanoparticles were thoroughly characterized using a range of techniques, including fluorescence spectroscopy, UV-Vis spectroscopy, Raman spectroscopy, transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The optical and structural characterization revealed that the choice of precursors influences the quantum yield of fluorescence (QY) and emission behavior, while yielding nanoparticles of similar sizes (1.7-2.8 nm). The CDs exhibited excitation-dependent emission, w

SUBMITTER: Barreto GF 

PROVIDER: S-EPMC12713492 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature