Highly Luminescent Nucleoside-Based N, P-Doped Carbon Dots for Sensitive Detection of Ions and Bioimaging.

ABSTRACT: The efficient detection of Fe³⁺ and MnO₄ ^- in a water environment is very important and challenging due to their harmful effects on the health of humanity and environmental systems. Good biocompatibility, sensitivity, selectivity, and superior photophysical properties were important attributes of carbon dot-based CDs sensors for sensing applications. In this work, we synthesized N, P-co-doped carbon dots (N/P CDs) with guanosine 5'-monophosphate (GMP) as a green carbon source, with high fluorescence quantum yield in water (QY, 53.72%). First, the luminescent N/P CDs showed a three-state "on-off-on" fluorescence response upon the sequential addition of Fe³⁺ and F^-, with a low detection limit of 12 nM for Fe³⁺ and 8.5 n

SUBMITTER: Wang M 

PROVIDER: S-EPMC9210210 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature