Title :
Rational assembly of nanoparticles clusters with specific formulae by colloidal reaction
Author :
Wang, Yong ; Chen, Gang ; Yang, Miaoxin ; Chen, Hongyu
Author_Institution :
Div. of Chem. & Biol. Chem., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
The assembly of gold nanoparticles (AuNPs) with valency control was explored in colloidal reactions. In this system, thiol-functionalized AuNPs (A-NPs) were reacted with excess citrate-stabilized AuNPs (B-NPs). By tuning the strength of charge repulsion between the B-NPs, NPs clusters of formulae AB, AB2, AB3 and AB4 were obtained. Polymer encapsulation of these nanostructures maintained the structural integrity during the isolation and purification. This integrated system combined the coupling, valency control, protection, and separation, allowing the rational structural assembly of colloidal products.
Keywords :
colloids; encapsulation; gold; isolation technology; metal clusters; nanoparticles; organic compounds; purification; self-assembly; valency; Au; charge repulsion; citrate-stabilized nanoparticle; colloidal reaction; gold nanoparticles; isolation; nanoparticles clusters; polymer encapsulation; purification; rational structural assembly; structural integrity; thiol functionalization; valency control; Assembly; Bonding; Chemical technology; Chemistry; Encapsulation; Gold; Nanobioscience; Nanoparticles; Polymers; Protection;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424452
