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Synthesis and luminescence properties of nanoparticles embedded with Europium (III)/coumarin complexes

JING TANG1, LIN ZHOU1, FEI MA1, CHAO YANG1, JIA-HONG ZHOU2,*

Affiliation

  1. College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210046, China
  2. Analysis and Testing Center, Jiangsu Key Laboratory of Biofunctional Materials, Nanjing Normal University, Nanjing 210046, China

Abstract

A complex of europium (III)/coumarin was synthesized and the complexation reaction was studied by UV-vis, fluorescence, FTIR, 1 H NMR spectroscopy, DTA and TG analyses. To improve the stability and solubility, and amplify the optical signal of the complex in aqueous solution, the complex was encapsulated inside into silica nanoparticles through a sol-gel process. The final product could be taken up by cells and showed obviously blue fluorescence by excitation. The study indicated that nanoparticles embedded with europium (III)/coumarin complexes could be applied as luminescent nanoprobes in cell imaging of biological systems.

Keywords

Synthesis, Europium (III)/coumarin complex, Optical signal, Encapsulation.

Submitted at: Oct. 10, 2011
Accepted at: Feb. 20, 2012

Citation

JING TANG, LIN ZHOU, FEI MA, CHAO YANG, JIA-HONG ZHOU, Synthesis and luminescence properties of nanoparticles embedded with Europium (III)/coumarin complexes, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 1-2, pp. 84-89 (2012)