Synthesis and measurement of magnetic cobalt DNA-templated nanowire

Chia Hsin Lin*, Shi Yuan Tong, Shin Wei Lin, Hsin Lung Chen, Yi Chun Liu, Hsien Kuang Lin, Wen Lian Liu, Syh Yuh Cheng, Yi Hui Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Biomaterials such as DNA are currently being explored as potential application in nanotechnology. DNA templates were immobilized on crystal-violet-treated mica by spin coating as a grid-like network. The DNA templates were then activated with PdCl2, followed by reduction with dimethylamine borane (DMAB) to form seeding nanoclusters on the DNA chain. Afterward the DNA chain with deposition of zero-valence Pd nanoclusters was grew in a Co electroless plating bath. SEM/EDS analysis revealed that Co nanoparticles could be assembled on the DNA template to form magnetic nanowires with a diameter of 25nm to 250nm by a conventional electroless plating. Vibrating Sample Magnetometer analysis indicated that Co-DNA nanowires showed a paramagnetic characteristic. Grid-like networks of DNA template were effectively preserved after Co electroless plating. These characteristics indicated that DNA is an ideal template for the production of magnetic nanowires, which could be useful in the development of high-density memory storage or magnetic field sensors.

Original languageEnglish
Title of host publicationNanomanufacturing
PublisherMaterials Research Society
Pages48-53
Number of pages6
ISBN (Print)1558998780, 9781558998780
DOIs
StatePublished - 2006
Externally publishedYes
Event2006 MRS Spring Meeting - San Francisco, CA, United States
Duration: 18 04 200619 04 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume921
ISSN (Print)0272-9172

Conference

Conference2006 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period18/04/0619/04/06

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