Carboxylated SiO2-coated α-Fe nanoparticles: towards a versatile platform for biomedical applications

Kaori Kohara; Shinpei Yamamoto; Liis Seinberg; Tatsuya Murakami; Masahiko Tsujimoto; Tetsuya Ogawa; Hiroki Kurata; Hiroshi Kageyama; Mikio Takano

doi:10.1039/C3CC39055A

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Carboxylated SiO₂-coated α-Fe nanoparticles: towards a versatile platform for biomedical applications†

Kaori Kohara,^ab Shinpei Yamamoto,*^a Liis Seinberg,^c Tatsuya Murakami,^a Masahiko Tsujimoto,^a Tetsuya Ogawa,^d Hiroki Kurata,^d Hiroshi Kageyama^ac and Mikio Takano^a

Author affiliations

* Corresponding authors

^a Institute for Integrated Cell-Materials Sciences, Kyoto University, Yoshida-Ushinomiyacho, Sakyo-ku, Kyoto, Japan

^b Toda Kogyo, Corp., 1-4, Meijishinkai, Otake, Hiroshima, Japan

^c Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan

^d Institute for Chemical Research, Kyoto University, Uji, Kyoto, Japan

Abstract

Carboxylated SiO₂-coated α-Fe nanoparticles have been successfully prepared via CaH₂-mediated reduction of SiO₂-coated Fe₃O₄ nanoparticles followed by surface carboxylation. These α-Fe-based nanoparticles, which are characterized by ease of coating with additional functional groups, a large magnetization of 154 emu per g-Fe, enhanced corrosion resistivity, excellent aqueous dispersibility, and low cytotoxicity, have potential to be a versatile platform in biomedical applications.

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Article information

DOI: https://doi.org/10.1039/C3CC39055A
Article type: Communication
Submitted: 19 Dec 2012
Accepted: 12 Feb 2013
First published: 20 Feb 2013

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Chem. Commun., 2013,49, 2563-2565

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Carboxylated SiO₂-coated α-Fe nanoparticles: towards a versatile platform for biomedical applications

K. Kohara, S. Yamamoto, L. Seinberg, T. Murakami, M. Tsujimoto, T. Ogawa, H. Kurata, H. Kageyama and M. Takano, Chem. Commun., 2013, 49, 2563 DOI: 10.1039/C3CC39055A

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