Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (1): 60-67.DOI: 10.11944/j.issn.1000-0518.2018.01.170048

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Gold Nanopaticle Surface Energy Transfer and Its Application for Thiols Detection

WANG Cui,ZHANG Feiyun,LYU Rongwen(),ZHANG Shufen   

  1. State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian,Liaoning 116024,China
  • Received:2017-02-28 Accepted:2017-05-31 Online:2018-01-03 Published:2018-01-03
  • Contact: LYU Rongwen


The fluorescence of Rhodamine B was quenched due to the surface energy transfer from Rhodamine B to silica supported gold nanoparticle surface. The Stern-Volmer quenching constant of the gold nanoparticles was 4.3×103 L/mol in this system. While, the fluorescence of Rhodamine B recovered after the addition of thiols due to the strong affinity of thiol to gold nanoparticles which obstructed the energy transfer between Rhodamine B and gold nanoparticles. As the unique response of Rhodamine B-Au-SiO2 system to thiols, it provides a simple analytical method for the detection of thiols. Moreover, Au-SiO2 becomes a recyclable probe because of the stabilization of silica support.

Key words: surface energy transfer, gold nanoparticles, silica, Rhodamine B, thiols