Please use this identifier to cite or link to this item: https://doi.org/10.1021/nn202860s
Title: Synthesis of highly fluorescent metal (Ag, Au, Pt, and Cu) nanoclusters by electrostatically induced reversible phase transfer
Authors: Yuan, X.
Luo, Z.
Zhang, Q. 
Zhang, X.
Zheng, Y.
Lee, J.Y. 
Xie, J. 
Keywords: fluorescence
metal nanomaterials
nanoclusters
phase transfer
silver
Issue Date: 22-Nov-2011
Source: Yuan, X., Luo, Z., Zhang, Q., Zhang, X., Zheng, Y., Lee, J.Y., Xie, J. (2011-11-22). Synthesis of highly fluorescent metal (Ag, Au, Pt, and Cu) nanoclusters by electrostatically induced reversible phase transfer. ACS Nano 5 (11) : 8800-8808. ScholarBank@NUS Repository. https://doi.org/10.1021/nn202860s
Abstract: This paper reports a simple and scalable method for the synthesis of highly fluorescent Ag, Au, Pt, and Cu nanoclusters (NCs) based on a mild etching environment made possible by phase transfer via electrostatic interactions. Using Ag as a model metal, a simple and fast (total synthesis time < 3 h) phase transfer cycle (aqueous → organic (2 h incubation) → aqueous) has been developed to process originally polydisperse, nonfluorescent, and unstable Ag NCs into monodisperse, highly fluorescent, and extremely stable Ag NCs in the same phase (aqueous) and protected by the same thiol ligand. The synthetic protocol was successfully extended to fabricate highly fluorescent Ag NCs protected by custom-designed peptides with desired functionalities (e.g., carboxyl, hydroxyl, and amine). The facile synthetic method developed in this study should largely contribute to the practical applications of this new class of fluorescence probes. © 2011 American Chemical Society.
Source Title: ACS Nano
URI: http://scholarbank.nus.edu.sg/handle/10635/64671
ISSN: 19360851
DOI: 10.1021/nn202860s
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