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Publisher: WILEY-VCH Verlag GmbH & Co. KGaA
Languages: English
Types: Article
Subjects:
This manuscript describes a one-pot method for the synthesis of size- and shape-selected silver nanoparticles (AgNPs) using Tollens' reagent [Ag(NH3)2OH] as the silver source. Sugar triazole ligands facilitate the formation of monodisperse AgNPs in which the size and shape can be controlled according to the reaction conditions. Increasing the size of the ligand reduces size tunability but enhances colloidal stability in high-salt buffers. A key conclusion from this study is that the AgI-binding affinity of these triazole ligands determines their capacity to tune the size of the resultant AgNPs formed. Weaker AgI-binding ligands can be used to form monodisperse, angular AgNPs over a wider range of sizes [(12 ± 3) to (33 ± 7) nm], whereas triazole ligands that exhibit a higher AgI-binding affinity produce monodisperse, spherical AgNPs of a single size [(18 ± 5) nm].
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    • [a] Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK E-mail: http://www.burleylabs.co.uk http://www.strath.ac.uk/chemistry/staff/academic/glennburley/ [b] Division of Biomedical Engineering, School of Engineering, University of Glasgow, Oakfield Avenue, Glasgow, G12 8LT, UK [c] Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, Bath, BA2 7AY, UK [d] Department of Chemistry, University of Leicester, University Road, Leicester, LE1 7RH, UK Supporting information for this article is available on the WWW under http://dx.doi.org/10.1002/ejic.201402593. © 2014 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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