Document Detail


Shape-controlled Synthesis of Colloidal Superparticles from Nanocubes.
MedLine Citation:
PMID:  23057799     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This manuscript reports a shape-controlled synthesis of colloidal superparticles from iron-oxide nanocubes. Our results show that the formation of superparticles is under thermodynamic control and their shape is determined by Gibbs free energy minimization. The resulting superparticles adopted a simple cubic superlattice structure, and their shape can be tuned between spheres and cubes by varying the relative free energy contributions from the surface and bulk free energy terms. The formation of sphere-shaped superparticles from nanocubes suggests that the size-dependent hydration effect predicted by the Lum-Chandler-Weeks theory plays a very important role in the self-assembly of nano-objects. In addition, the iron-oxide superparticles exhibit shape-dependent therapeutic effects in magnetomechanical treatments of cancer cells in vitro.
Authors:
Tie Wang; Xirui Wang; Derek Lamontagne; Zhongliang Wang; Zhongwu Wang; Y Charles Cao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-11
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  -     ISSN:  1520-5126     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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