Magnetic properties of DNA-templated Co/Cu naonoparticle chains

You Hui Gao; Ling Wei; Chun Lei Gao; Wei Xing Xia; Daisuke Shindo

doi:10.1088/1674-1056/19/8/088103

Magnetic properties of DNA-templated Co/Cu naonoparticle chains

You Hui Gao, Ling Wei, Chun Lei Gao, Wei Xing Xia, Daisuke Shindo

研究成果: Article › 査読

1 被引用数 (Scopus)

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According to ultraviolet (UV)-vis absorption spectra recorded in the DNA metallization process, DNA-templated Co/Cu binary nanoparticle chains are fabricated by incubating genome DNA of paralichthys olivaceus muscle in CoCl₂ and CuCl₂ mixture solution for 20 hours and reducing the complex for 2 hours. Transmission electron microscopy observation indicates that Co and Cu nanoparticles with 20 nm in diameter were randomly dispersed on the DNA template. The superconducting quantum interference device (SQUID) measurements display that the magnetic interaction between cobalt particles is greatly decreased by the copper particle. With increasing copper content, the coercivity of the systems enhance from 9 Oe to 100 Oe (1 Oe=79.5775 A/m).

本文言語	English
論文番号	088103
ジャーナル	Chinese Physics B
巻	19
号	8
DOI	https://doi.org/10.1088/1674-1056/19/8/088103
出版ステータス	Published - 2010 8 1

ASJC Scopus subject areas

物理学および天文学（全般）

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10.1088/1674-1056/19/8/088103

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title = "Magnetic properties of DNA-templated Co/Cu naonoparticle chains",

abstract = "According to ultraviolet (UV)-vis absorption spectra recorded in the DNA metallization process, DNA-templated Co/Cu binary nanoparticle chains are fabricated by incubating genome DNA of paralichthys olivaceus muscle in CoCl2 and CuCl2 mixture solution for 20 hours and reducing the complex for 2 hours. Transmission electron microscopy observation indicates that Co and Cu nanoparticles with 20 nm in diameter were randomly dispersed on the DNA template. The superconducting quantum interference device (SQUID) measurements display that the magnetic interaction between cobalt particles is greatly decreased by the copper particle. With increasing copper content, the coercivity of the systems enhance from 9 Oe to 100 Oe (1 Oe=79.5775 A/m).",

keywords = "Co/Cu nanoparticle, DNA-templated, Magnetic interaction",

author = "Gao, {You Hui} and Ling Wei and Gao, {Chun Lei} and Xia, {Wei Xing} and Daisuke Shindo",

year = "2010",

month = aug,

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doi = "10.1088/1674-1056/19/8/088103",

language = "English",

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T1 - Magnetic properties of DNA-templated Co/Cu naonoparticle chains

AU - Gao, You Hui

AU - Wei, Ling

AU - Gao, Chun Lei

AU - Xia, Wei Xing

AU - Shindo, Daisuke

PY - 2010/8/1

Y1 - 2010/8/1

N2 - According to ultraviolet (UV)-vis absorption spectra recorded in the DNA metallization process, DNA-templated Co/Cu binary nanoparticle chains are fabricated by incubating genome DNA of paralichthys olivaceus muscle in CoCl2 and CuCl2 mixture solution for 20 hours and reducing the complex for 2 hours. Transmission electron microscopy observation indicates that Co and Cu nanoparticles with 20 nm in diameter were randomly dispersed on the DNA template. The superconducting quantum interference device (SQUID) measurements display that the magnetic interaction between cobalt particles is greatly decreased by the copper particle. With increasing copper content, the coercivity of the systems enhance from 9 Oe to 100 Oe (1 Oe=79.5775 A/m).

AB - According to ultraviolet (UV)-vis absorption spectra recorded in the DNA metallization process, DNA-templated Co/Cu binary nanoparticle chains are fabricated by incubating genome DNA of paralichthys olivaceus muscle in CoCl2 and CuCl2 mixture solution for 20 hours and reducing the complex for 2 hours. Transmission electron microscopy observation indicates that Co and Cu nanoparticles with 20 nm in diameter were randomly dispersed on the DNA template. The superconducting quantum interference device (SQUID) measurements display that the magnetic interaction between cobalt particles is greatly decreased by the copper particle. With increasing copper content, the coercivity of the systems enhance from 9 Oe to 100 Oe (1 Oe=79.5775 A/m).

KW - Co/Cu nanoparticle

KW - DNA-templated

KW - Magnetic interaction

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JO - Chinese Physics B

JF - Chinese Physics B

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Magnetic properties of DNA-templated Co/Cu naonoparticle chains

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