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S, N-Co-doped Carbon Nanoparticles with High Quantum Yield for metal ions detection, IMP logic gates and bioimaging Applications

Abstract

In this paper, we reported a facile approach for the preparation of sulfur and nitrogen co-doped carbon nanoparticles (S, N-CNPs) with strong blue luminescence, and exhibited its multiple applications for metal ions detection, logic gate fabrication and bioimaging. S, N-CNPs were synthesized by one-step hydrothermal treatment of Formamidine sulfinic acid (FAS) and ethylene glycol. The as-synthesized S, N-CNPs possess a high quantum yield (Φ = 69.04%) and display excellent photostability and storage stability. By modulating pH environment, S, N-CNPs were successfully applied as fluorescent probe for the detection of three kinds of heavy metal ions (Hg2+, Ag+ and Ni2+). The fabricated fluorescence sensors display ultrahigh sensitivity and wider signal response range. More importantly, ethylenediamine (or ammonium thioglycolate, glycine) could efficiently release Hg2+ (or Ag+, Ni2+) from S, N-CNPs surface, leading to the recovery of the fluorescence. According to this phenomenon, an interesting implication (IMP) logic gates were constructed. In addition, the S, N-CNPs exhibited low toxicity, good biocompatibility and easy celluar uptake behavior. Consequently, the obtained S, N-CNPs will provide potential applications in multiple fields of environmental monitoring, logic gate operation, as well as living cell bioimaging.

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Publication details

The article was received on 06 Sep 2018, accepted on 08 Nov 2018 and first published on 09 Nov 2018


Article type: Paper
DOI: 10.1039/C8NJ04527E
Citation: New J. Chem., 2018, Accepted Manuscript
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    S, N-Co-doped Carbon Nanoparticles with High Quantum Yield for metal ions detection, IMP logic gates and bioimaging Applications

    J. Song, Q. Ma, S. Zhang, H. Liu, Y. Guo and F. Feng, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ04527E

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