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

fYear

2010

Firstpage

763

Lastpage

764

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/INEC.2010.5424452

Filename

5424452