High photostability and enhanced fluorescence of gold nanoclusters by silver doping

Nanoscale. 2012 Dec 21;4(24):7624-31. doi: 10.1039/c2nr30653k. Epub 2012 Nov 9.


Gold nanoclusters prepared with a controlled amount of Ag exhibit intense fluorescence with a quantum yield of ~16% and a "quasi-monoexponential" long lifetime of >200 ns. Characterization of the luminescent probes indicates high photostability and easy detection in cells. Additionally, fluorescence enhancement in the presence of proteins was found.

Publication types

  • Research Support, Non-U.S. Gov't