Premium
Defining the Structural Parameters of Triazole Ligands in the Templated Synthesis of Silver Nanoparticles
Author(s) -
Kashmery Heba A.,
Clark Alasdair W.,
Dondi Ruggero,
Fallows Andrew J.,
Cullis Paul M.,
Burley Glenn A.
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201402593
Subject(s) - chemistry , dispersity , reagent , ligand (biochemistry) , silver nanoparticle , particle size , triazole , click chemistry , nanoparticle , combinatorial chemistry , colloid , nanotechnology , salt (chemistry) , 1,2,4 triazole , polymer chemistry , organic chemistry , receptor , biochemistry , materials science
This manuscript describes a one‐pot method for the synthesis of size‐ and shape‐selected silver nanoparticles (AgNPs) using Tollens' reagent [Ag(NH 3 ) 2 OH] 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 Ag I ‐binding affinity of these triazole ligands determines their capacity to tune the size of the resultant AgNPs formed. Weaker Ag I ‐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 Ag I ‐binding affinity produce monodisperse, spherical AgNPs of a single size [(18 ± 5) nm].