Journal of Materials Science

, Volume 52, Issue 17, pp 9979–9989 | Cite as

Photoluminescence of carbon dots and their applications in Hela cell imaging and Fe3+ ion detection

  • Lin Ge
  • Hailong Yu
  • Haitao Ren
  • Bo Shi
  • Qian Guo
  • Wensheng Gao
  • Zhaoqing Li
  • Jiangong Li


Carbon dots are a new and important form of zero-dimensional carbonaceous nanomaterials. In our present work, disperse water-soluble fluorescent carbon dots were prepared using coffee grounds as raw material by hydrothermal treatment. The as-prepared carbon dots exhibit an excitation-dependent and high photostable photoluminescence behavior which can be applied to Hela cell imaging. Notably, the fluorescence of the carbon dots can be quenched by Fe3+ ions, which can serve as a useful fluorescent probe for detecting Fe3+ ions.



This work was supported by the National Natural Science Foundation of China (51272098 and 51551201).

Supplementary material

10853_2017_1178_MOESM1_ESM.pdf (227 kb)
Supplementary material 1 (PDF 227 kb)


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Institute of Materials Science and EngineeringLanzhou UniversityLanzhouChina

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