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Fabrication of Two- and Three-Dimensional Structures of Nanoparticles Using LB Method and DNA Hybridization

Published online by Cambridge University Press:  21 March 2011

Takayuki Takahagi ,
Shujuan Huang ,
Gen Tsutsui ,
Hiroyuki Sakaue  and
Shoso Shingubara
Takayuki Takahagi
Affiliation:
Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
Shujuan Huang
Affiliation:
Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
Gen Tsutsui
Affiliation:
Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
Hiroyuki Sakaue
Affiliation:
Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
Shoso Shingubara
Affiliation:
Graduate School of Advanced Sciences of Matter, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
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Abstract

In this paper we describe fabrication methods for two types of nanostructures, two- and three-dimensional arrays of gold nanoparticles. Large-scale and high-ordered monolayers of alkanethiol-encapsulated gold particles were fabricated by using Langmuir-Blodgett (LB) method. Three-dimensional nanoparticle arrays composed of gold nanoparticles of two different sizes, which were encapsulated by complementary thiol-capped DNA oligonucleotides, were fabricated by using DNA hybridization. DNA hybridization occurred upon mixing these particles, which resulted in the assembly of three-dimensional nanostructure of gold particles. Scanning electron microscopy observations and UV spectroscopy measurement were performed to confirm the construction of the nanostructures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 707: Symposium AA – Self-Assemble Processes in Materials , 2001 , AA4.5.1/W4.5.1
Copyright
Copyright © Materials Research Society 2002

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References

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