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A Kinetic Study of Mediator-Template Assembly of Gold Nanoparticles

Published online by Cambridge University Press:  01 February 2011

I-IM Stephanie Zhong ,
Wui Ip ,
Alice Pak ,
Jin Luo  and
Chuan-Jian Zhong
I-IM Stephanie Zhong
Affiliation:
stephanie.lim@binghamton.edu
Wui Ip
Affiliation:
cjzhong@binghamton.edu, United States
Alice Pak
Affiliation:
cjzhong@binghamton.edu, United States
Jin Luo
Affiliation:
jluo@binghamton.edu, United States
Chuan-Jian Zhong
Affiliation:
cjzhong@binghamton.edu, State University of New York-Binghamton, Vestal Pkwy East, Binghamton, New York, 13902, United States
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Abstract

This paper describes a kinetic study of the mediator-template assembly of gold nanoparticles in solutions based on the spectrophotometric measurement of the surface plasmon resonance optical property. Gold nanoparticles of ∼5 nm diameter encapsulated with tetraoctylammonium bromide shells were studied as a model system. The core-shell nanoparticles were assembled into 3D spherical assemblies via a mediator-template assembly route in which a thioether-based multidentate ligand functions as a mediator and the tetraoctylammonium shell molecules function as a templating agent. In this report, the results were compared with those obtained for the assembly of gold nanoparticles in several different systems with features similar to the mediator-template assembly. The findings further provided further insights into understanding the kinetic factors governing the assembly of nanoparticles, and have important implications to the design and control of the nanostructures for sensory and catalytic applications.

Keywords

nanoscaleAukinetics
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 900: Symposium O – Nanoparticles and Nanostructures in Sensors and Catalysis , 2005 , 0900-O08-07
Copyright
Copyright © Materials Research Society 2006

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References

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