Multifunctional N,S co-doped carbon dots for sensitive probing of temperature, ferric ion, and methotrexate

  title={Multifunctional N,S co-doped carbon dots for sensitive probing of temperature, ferric ion, and methotrexate},
  author={Pengli Zuo and Jianhua Liu and Hongna Guo and Chenghong Wang and Hongqian Liu and Z. Zhang and Qingyou Liu},
  journal={Analytical and Bioanalytical Chemistry},
  • Pengli Zuo, Jianhua Liu, +4 authors Qingyou Liu
  • Published 2019
  • Chemistry, Medicine
  • Analytical and Bioanalytical Chemistry
  • AbstractIn this paper, we have presented a facile method to fabricate nitrogen and sulfur co-doped carbon dots (N,S-CDs) for blood methotrexate (MTX) sensing applications. The N,S-CDs with quantum yield up to 75% were obtained by one-step hydrothermal carbonization, using reduced glutathione and citric acid as the precursors. With this approach, the formation and the surface passivation of N,S-CDs were carried out simultaneously, resulting in intrinsic fluorescence emission. Owing to their… CONTINUE READING

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