Radiation-induced synthesis of Au/Fe oxide nanocomposite particles for magnetic separation of biomolecules

Satoshi Seino; Takuya Kinoshita; Yohei Otome; Takashi Nakagawa; Kenji Okitsu; Tadachika Nakayama; Tohru Sekino; Koichi Niihara; Takao A. Yamamoto

Radiation-induced synthesis of Au/Fe oxide nanocomposite particles for magnetic separation of biomolecules

Satoshi Seino, Takuya Kinoshita, Yohei Otome, Takashi Nakagawa, Kenji Okitsu, Tadachika Nakayama, Tohru Sekino, Koichi Niihara, Takao A. Yamamoto

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Nanocomposite particles composed of gold and iron oxide were synthesized with various ratios of gold and iron oxide in an aqueous phase using γ-rays. Iron oxide nanoparticles of γ-Fe₂O₃ or Fe₃O₄ were used as a magnetic phase on which gold nanoparticles with average diameters of 5-10 nm were supported. The efficiency of magnetic separation of biomolecules by the present nanocomposite particles was investigated using glutathione as a model compound. The amount of glutathione magnetically separated was significantly enhanced by the supported gold nanoparticles.

Original language	English
Pages (from-to)	136-139
Number of pages	4
Journal	Journal of Ceramic Processing Research
Volume	5
Issue number	2
Publication status	Published - 2004 Aug 27

Keywords

Au
FeO
Magnetic separation
Nanocomposite particle
γ-FeO
γ-ray

ASJC Scopus subject areas

Ceramics and Composites

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Radiation-induced synthesis of Au/Fe oxide nanocomposite particles for magnetic separation of biomolecules. / Seino, Satoshi; Kinoshita, Takuya; Otome, Yohei; Nakagawa, Takashi; Okitsu, Kenji; Nakayama, Tadachika; Sekino, Tohru; Niihara, Koichi; Yamamoto, Takao A.

In: Journal of Ceramic Processing Research, Vol. 5, No. 2, 27.08.2004, p. 136-139.

Research output: Contribution to journal › Article › peer-review

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abstract = "Nanocomposite particles composed of gold and iron oxide were synthesized with various ratios of gold and iron oxide in an aqueous phase using γ-rays. Iron oxide nanoparticles of γ-Fe2O3 or Fe3O4 were used as a magnetic phase on which gold nanoparticles with average diameters of 5-10 nm were supported. The efficiency of magnetic separation of biomolecules by the present nanocomposite particles was investigated using glutathione as a model compound. The amount of glutathione magnetically separated was significantly enhanced by the supported gold nanoparticles.",

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AU - Okitsu, Kenji

AU - Nakayama, Tadachika

AU - Sekino, Tohru

AU - Niihara, Koichi

AU - Yamamoto, Takao A.

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