Issue 24, 2012
From the journal:

Nanoscale

High photostability and enhanced fluorescence of gold nanoclusters by silver doping†

Xavier Le Guével,a   Vanessa Trouillet,b   Christian Spies,c   Ke Li,a   Timo Laaksonen,d   Dagmar Auerbach,c   Gregor Jungc  and  Marc Schneider*a  

* Corresponding authors

a Pharmaceutical Nanotechnology, Saarland University, Saarbrücken, Germany
E-mail: m.schneider@mx.uni-saarland.de
Fax: +49 0681-302 4677
Tel: +49 681-302 2438

b Institute for Applied Materials, KIT-Campus North, Karlsruhe, Germany

c Department of Biophysical Chemistry, Saarland University, Saarbrücken, Germany

d Division of Pharmaceutical Technology, Faculty of Pharmacy, Helsinki, Finland

Abstract

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.

Graphical abstract: High photostability and enhanced fluorescence of gold nanoclusters by silver doping

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Article information

DOI
https://doi.org/10.1039/C2NR30653K
Article type
Communication
Submitted
19 Mar 2012
Accepted
10 Sep 2012
First published
13 Sep 2012

Nanoscale, 2012,4, 7624-7631

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High photostability and enhanced fluorescence of gold nanoclusters by silver doping

X. Le Guével, V. Trouillet, C. Spies, K. Li, T. Laaksonen, D. Auerbach, G. Jung and M. Schneider, Nanoscale, 2012, 4, 7624 DOI: 10.1039/C2NR30653K

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