Please use this identifier to cite or link to this item: https://doi.org/10.1038/am.2013.3
Title: Highly luminescent silver nanoclusters with tunable emissions: Cyclic reduction-decomposition synthesis and antimicrobial properties
Authors: Yuan, X.
Setyawati, M.I.
Tan, A.S.
Ong, C.N. 
Leong, D.T. 
Xie, J. 
Keywords: Antimicrobial
Biomedical applications
Luminescence
Silver nanoclusters
Thiol ligands
Issue Date: Feb-2013
Citation: Yuan, X., Setyawati, M.I., Tan, A.S., Ong, C.N., Leong, D.T., Xie, J. (2013-02). Highly luminescent silver nanoclusters with tunable emissions: Cyclic reduction-decomposition synthesis and antimicrobial properties. NPG Asia Materials 5 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1038/am.2013.3
Abstract: This paper reports a facile aqueous-based synthesis method for highly luminescent Ag nanoclusters (NCs) with tunable emissions. The key strategy was to use a reduction-decomposition-reduction cycle to modify the Ag NC intermediates that were further subjected to size/structure focusing. The as-modified Ag NC intermediates were more robust in water against the subsequent etching by thiol ligands, making a mild size-/structure-focusing environment possible, which produced highly luminescent Ag NCs with a well-defined size and structure. Ag NCs with intense red and green emission were successfully synthesized by this method. These Ag NCs possessed a well-defined size and structure (Ag16(SG)9 and Ag9(SG)6), and exhibited excellent stability in the aqueous phase. Our highly luminescent Ag NCs also possessed superior antimicrobial properties against the multidrug-resistant bacteria Pseudomonas aeruginosa, via generating a high concentration of intracellular reactive oxygen species. © 2013 Nature Japan K.K. All rights reserved.
Source Title: NPG Asia Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/51782
ISSN: 18844049
DOI: 10.1038/am.2013.3
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