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Lin L, Wang Y, Xiao Y, et al. Hydrothermal synthesis of carbon dots codoped with nitrogen and phosphorus as a turn-on fluorescent probe for cadmium(II). Mikrochim Acta. 2019;186(3):147doi: 10.1007/s00604-019-3264-5.
Lin, L., Wang, Y., Xiao, Y., & Liu, W. (2019). Hydrothermal synthesis of carbon dots codoped with nitrogen and phosphorus as a turn-on fluorescent probe for cadmium(II). Mikrochimica acta, 186(3), 147. https://doi.org/10.1007/s00604-019-3264-5
Lin, Liping, et al. "Hydrothermal synthesis of carbon dots codoped with nitrogen and phosphorus as a turn-on fluorescent probe for cadmium(II)." Mikrochimica acta vol. 186,3 (2019): 147. doi: https://doi.org/10.1007/s00604-019-3264-5
Lin L, Wang Y, Xiao Y, Liu W. Hydrothermal synthesis of carbon dots codoped with nitrogen and phosphorus as a turn-on fluorescent probe for cadmium(II). Mikrochim Acta. 2019 Feb 02;186(3):147. doi: 10.1007/s00604-019-3264-5. PMID: 30712175.
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Mikrochim Acta. 2019 Feb 02;186(3):147. doi: 10.1007/s00604-019-3264-5.

Hydrothermal synthesis of carbon dots codoped with nitrogen and phosphorus as a turn-on fluorescent probe for cadmium(II).

Mikrochimica acta

Liping Lin, Yuhan Wang, Yanling Xiao, Wei Liu

Affiliations

  1. Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China. [email protected].
  2. Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
  3. Department of Bioinformatics, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.

PMID: 30712175 DOI: 10.1007/s00604-019-3264-5

Abstract

Nitrogen and phosphorus co-doped carbon dots (N,P-CDs) have been synthesized via hydrothermal method starting from o-phosphorylethanolamine and citric acid. The blue-green fluorescence of the N,P-CDs (with excitation/emission peaks at 325/435 nm) is gradually enhanced on sequential addition of Cd(II) ions. This fluorometric assay works in the 0.5 μM to 12.5 μM Cd(II) concentration range and has a 0.16 μM detection limit. The phenomenon may be attributed to chelation enhanced fluorescence that is induced by the formation of Cd(II)-N,P-CDs complex with functional groups present on the surface. The method has applied to the detection of Cd(II) in spiked serum and urine samples and gave satisfying results. Graphical abstract Schematic presentation of the synthesis of nitrogen and phosphorus co-doped carbon dots (N,P-CDs) and their application as a turn-on fluorescence probe for Cd(II) detection.

Keywords: Cd(II) detection; Chelation enhanced fluorescence; Fluorescence enhancement; Nitrogen and phosphorus co-doped carbon dots

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