Red-emissive nitrogen doped carbon quantum dots for highly selective and sensitive fluorescence detection of the alachlor herbicide in soil samples

Abstract

We report the synthesis of red-emissive nitrogen-doped carbon quantum dots and their applications in the highly selective and sensitive detection of the alachlor herbicide in soil samples.

Red-Emissive Sulfur-Doped Carbon Dots for Selective and Sensitive Detection of Mercury (II) Ion and Glutathione

“…The detailed information on N1s was shown in Figure 1 g, which was split into two peaks at 398 eV (N-C-N) and 398.6 eV (N-H), respectively [ 36 ]. The high-resolution spectrum of S2p ( Figure 1 h) revealed the presence of the C = S bond (166.8 eV) in RCDs [ 37 ]. These results further confirmed the success of S element doping in RCDs.…”

Analytical methods to analyze pesticides and herbicides

“…Du, Cheng, Lai, Ruan, and Zhao (2019) synthesized red‐emissive nitrogen‐doped carbon quantum dots (N‐CQDs) by hydrothermal treatment of p‐phenylenediamine (p‐PD) for fluorescence detection of the alachlor herbicide. After method optimization, good linearity between 0.005 and 150 μM and a low LOD of 0.2 nM were obtained.…”

Carbon-based designer and programmable fluorescent quantum dots for targeted biological and biomedical applications

“…Fuyou Du et al showed that fluorescence and emission intensity change with a change in solvent; that is, carbon dots exhibit solvent-dependent photoluminescence. 110…”

“…The developed NCD probe demonstrated exceptional stability, sensitivity and selectivity, and outstanding repeatability in the sensing of alachlor, and it can measure alachlor over a broad concentration range (0.005-150 M). 110 To veterinary medicines, red emissive CDs demonstrate a rapid, sensitive, and targeted fluorescence response. Animals that are slaughtered for food are treated with veterinary medicines to prevent or cure illness; food made from these treated animals may include traces of these drugs which are harmful for human consumption.…”