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Identification of Ferrous-Ferric Fe3O4 Nanoparticles in Recombinant Human Ferritin Cages

文献类型：期刊论文

作者Walls, Michael G.1; Cao, Changqian2; Kui Yu-Zhang3; Li, Jinhua2; Che, Renchao4; Pan, Yongxin2
刊名MICROSCOPY AND MICROANALYSIS
出版日期2013-08-01
卷号19期号:4页码:835-841
关键词ferritin ironoxides nanoparticle TEM EELS HAADF
ISSN号1431-9276
DOI10.1017/S1431927613001724
文献子类Article
英文摘要Recombinant ferritin is an excellent template for the synthesis of magnetic nanoparticles. This paper describes carefully performed experiments both to identify ironoxides within nanoparticles and to measure the number of iron atoms in the cores of recombinant human H-chain ferritin (HFn), based on spectroscopy techniques. Using electron energy-loss spectroscopy (EELS) analysis, magnetite (Fe3O4) has been unequivocally identified as the ironoxide formed within HFn cores under special preparation conditions. Atom counting analysis by EELS and high-angle annular dark-field imaging further allowed the correlation of the particle sizes to the real Fe atom numbers in a quantitative manner. These results help clarify some structural confusion between magnetite and maghemite (gamma-Fe2O3), and also provide standard data for the number of Fe atoms within Fe3O4 particles of a given size, whose use is not limited to cases of magnetite synthesized in the cores of recombinant human ferritin.
WOS关键词ELECTRON NANODIFFRACTION ; IRON-OXIDES ; CORE ; FERRIHYDRITE ; GAMMA-FE2O3 ; RESOLUTION ; MAGNETITE ; MOLECULE ; RELEASE ; DISEASE
WOS研究方向Materials Science ; Microscopy
语种英语
WOS记录号WOS:000321764700008
出版者CAMBRIDGE UNIV PRESS
资助机构Chinese Academy of Sciences ; Chinese Academy of Sciences ; French CNRS ; French CNRS ; CEA METSA network ; CEA METSA network ; CAS/SAFEA(KZCX2-YW-T10) ; CAS/SAFEA(KZCX2-YW-T10) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; French CNRS ; French CNRS ; CEA METSA network ; CEA METSA network ; CAS/SAFEA(KZCX2-YW-T10) ; CAS/SAFEA(KZCX2-YW-T10) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; French CNRS ; French CNRS ; CEA METSA network ; CEA METSA network ; CAS/SAFEA(KZCX2-YW-T10) ; CAS/SAFEA(KZCX2-YW-T10) ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; French CNRS ; French CNRS ; CEA METSA network ; CEA METSA network ; CAS/SAFEA(KZCX2-YW-T10) ; CAS/SAFEA(KZCX2-YW-T10)
源URL[http://ir.iggcas.ac.cn/handle/132A11/87962]  
专题中国科学院地质与地球物理研究所
通讯作者Kui Yu-Zhang
作者单位1.CNRS, Lab Phys Solides, UMR 8502, F-91405 Orsay, France
2.Chinese Acad Sci, Franco Chinese Biomineralizat & Nanostruct Lab, Key Lab Earths Deep Interior, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Univ Reims, Dept Phys, F-51687 Reims, France
4.Fudan Univ, Adv Mat Lab, Shanghai 200438, Peoples R China
推荐引用方式
GB/T 7714		 Walls, Michael G.,Cao, Changqian,Kui Yu-Zhang,et al. Identification of Ferrous-Ferric Fe3O4 Nanoparticles in Recombinant Human Ferritin Cages[J]. MICROSCOPY AND MICROANALYSIS,2013,19(4):835-841.
APA Walls, Michael G.,Cao, Changqian,Kui Yu-Zhang,Li, Jinhua,Che, Renchao,&Pan, Yongxin.(2013).Identification of Ferrous-Ferric Fe3O4 Nanoparticles in Recombinant Human Ferritin Cages.MICROSCOPY AND MICROANALYSIS,19(4),835-841.
MLA Walls, Michael G.,et al."Identification of Ferrous-Ferric Fe3O4 Nanoparticles in Recombinant Human Ferritin Cages".MICROSCOPY AND MICROANALYSIS 19.4(2013):835-841.

入库方式： OAI收割

来源：地质与地球物理研究所

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