Coordination power adjustment of surface-regulating polymers for shaping gold polyhedral nanocrystals

Cited 13 time in scopus
Metadata Downloads
Title
Coordination power adjustment of surface-regulating polymers for shaping gold polyhedral nanocrystals
Author(s)
S J Lee; G Park; D Seo; D Ka; S Y Kim; Im Sik Chung; H Song
Bibliographic Citation
Chemistry-A European Journal, vol. 17, no. 30, pp. 8466-8471
Publication Year
2011
Abstract
PVP (poly(vinyl pyrrolidone)) is a common polymer that behaves as a surface-regulating agent that shapes metal nanocrystals in the polyol process. We have used different polymers containing tertiary amide groups, namely PVCL (poly(vinyl caprolactam)) and PDMAm (poly(N,N-dimethyl acrylamide)), for the synthesis of gold polyhedrons, including octahedrons, cuboctahedrons, cubes, and higher polygons, under the present polyol reaction conditions. The basicity and surface coordination power of the polymers are in the order of PVCL, PVP, and PDMAm. A correlation is observed between the coordination power of the polymers and the resulting gold nanocrystal size. Strong coordination and electron donation from the polymer functional groups to the gold surface restrict particle growth rates, which leads to small nanocrystals. The use of PVCL can yield gold polyhedral structures with small sizes, which cannot be achieved in the reactions with PVP. Simultaneous hydrolysis of the amide group in PDMAm leads to carboxylate functionality, which is very useful for generating chemical and bioconjugates through the formation of ester and amide bonds.
Keyword
coordinationgoldmorphologynanoparticlespolymers
ISSN
0947-6539
Publisher
Wiley
DOI
http://dx.doi.org/10.1002/chem.201100472
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
Files in This Item:
  • There are no files associated with this item.


Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.