Fabrication of two- and three-dimensional structures of nanoparticles using LB method and DNA hybridization

Takayuki Takahagi*, Shujuan Huang, Gen Tsutsui, Hiroyuki Sakaue, Shoso Shingubara

*Corresponding author for this work

Research output: Contribution to journalConference paper

1 Citation (Scopus)

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.

Original languageEnglish
Pages (from-to)47-52
Number of pages6
JournalMRS Online Proceedings
Volume704
DOIs
Publication statusPublished - 2001
Externally publishedYes
Event2001 MRS Fall Meeting and Exhibit - Boston, United States
Duration: 25 Nov 200130 Nov 2001

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