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Structures of Organic Additives Modified Magnetite Nanoparticles
http://hdl.handle.net/10228/00006702
http://hdl.handle.net/10228/00006702d2dc151c-ea18-443a-bf5f-558bbc74f828
名前 / ファイル | ライセンス | アクション |
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CI42_6000.pdf (719.5 kB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||||||||
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公開日 | 2018-04-02 | |||||||||||||||||
資源タイプ | ||||||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||
資源タイプ | journal article | |||||||||||||||||
タイトル | ||||||||||||||||||
タイトル | Structures of Organic Additives Modified Magnetite Nanoparticles | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | eng | |||||||||||||||||
著者 |
Kuwahara, Y.
× Kuwahara, Y.× 宮崎, 敏樹
WEKO
6369
× 城崎, 由紀
WEKO
15664
× Liu, G.× Kawashita, M. |
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抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | Magnetite (Fe3O4) nanoparticles and magnetite-based inorganic–organic hybrids are attracting increasing attention in biomedicine, as thermoseeds for hyperthermia and contrast media in magnetic resonance imaging. Controlling the size of Fe3O4 thermoseeds is important, as particle size affects their heat generation under alternative magnetic fields. Fe3O4 is easily synthesized via aqueous processes. We previously demonstrated that adding organic polymers during synthesis affected the size and crystallinity of the resulting Fe3O4. However, the relationship of the chemical structure of the low-molecular-weight organic additive of its effect on the product has not been elucidated. In this study, organic compounds containing varying functional groups and surface charges were added to the precursor solution of Fe3O4. Crystalline Fe3O4 formed in the presence of neutral acetone, cationic ethylenediamine, and anionic acetic acid. These nanoparticles had slightly smaller particle sizes than those prepared in the absence of additives. The presence of oxalic acid and tris(hydroxymethyl)aminomethane inhibited Fe3O4 nucleation, instead yielding lepidocrosite- or akaganeite-type FeOOH. These differences were attributed to the ability to form complexes between iron ions and the organic additives. The saturation magnetizations of the products were consistent with Fe3O4. This indicated that the crystal phase of the iron oxide products differed, even when prepared in the presence of organic additives of the same functional group. It is concluded that state of ion-organic molecule complex in the solutions is a key factor governing nanostructure of the resultant iron oxide. | |||||||||||||||||
書誌情報 |
Ceramics International 巻 42, 号 5, p. 6000-6004, 発行日 2016-01-04 |
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出版者 | Elsevier | |||||||||||||||||
DOI | ||||||||||||||||||
関連タイプ | isVersionOf | |||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||
関連識別子 | info:doi/10.1016/j.ceramint.2015.12.152 | |||||||||||||||||
NCID | ||||||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||||||
収録物識別子 | AA10622625 | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | ISSN | |||||||||||||||||
収録物識別子 | 0272-8842 | |||||||||||||||||
著作権関連情報 | ||||||||||||||||||
権利情報 | Copyright (c) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | A. Powders: chemical preparation | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | D. Ferrites | |||||||||||||||||
キーワード | ||||||||||||||||||
主題Scheme | Other | |||||||||||||||||
主題 | E. Biomedical applications | |||||||||||||||||
出版タイプ | ||||||||||||||||||
出版タイプ | AM | |||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
査読の有無 | ||||||||||||||||||
値 | yes | |||||||||||||||||
研究者情報 | ||||||||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/323_ja.html | ||||||||||||||||||
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10287979 | ||||||||||||||||||
連携ID | ||||||||||||||||||
5604 | ||||||||||||||||||
情報源 | ||||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||
関連識別子 | http://dx.doi.org/10.1016/j.ceramint.2015.12.152 | |||||||||||||||||
関連名称 | http://dx.doi.org/10.1016/j.ceramint.2015.12.152 |