Highly Magnetic Core-Shell Nanoparticles with a Unique Magnetization Mechanism

被引：113
作者：
Yoon, Tae-Jong [1 ]
Lee, Hakho [1 ]
Shao, Huilin [1 ]
Weissleder, Ralph [1 ,2 ]
机构：
[1] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Ctr Syst Biol, Boston, MA 02114 USA
[2] Harvard Univ, Sch Med, Dept Syst Biol, Boston, MA 02115 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2011年 / 50卷 / 20期
关键词：
biosensors; iron; magnetic properties; magnetic resonance imaging; nanoparticles; MONODISPERSE FE NANOPARTICLES; IRON NANOPARTICLES; PARTICLES; CELLS;
D O I：
10.1002/anie.201100101
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The potent core: A new approach to preparing highly magnetic nanoparticles consisting of a ferromagnetic core (Fe) and an artificial ferrite shell was developed. The monometallic core contributes to high overall magnetization. The superparamagnetic ferrite shell protects the core against oxidation and further increases magnetization while minimizing particle aggregation. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：4663 / 4666
页数：4
相关论文
共 16 条
  • [1] The synthesis of core-shell iron@gold nanoparticles and their characterization
    Ban, ZH
    Barnakov, YA
    Golub, VO
    O'Connor, CJ
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (43) : 4660 - 4662
  • [2] Preparation of Fe (core)/SiO2 (shell) composite particles with improved oxidation-resistance
    Cheng, Jing
    Ni, Xiaomin
    Zheng, Huagui
    Li, Beibei
    Zhang, Xiaojun
    Zhang, Dongen
    [J]. MATERIALS RESEARCH BULLETIN, 2006, 41 (08) : 1424 - 1429
  • [3] Preparation and characterization of monodisperse Fe nanoparticles
    Farrell, D
    Majetich, SA
    Wilcoxon, JP
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (40) : 11022 - 11030
  • [4] Synthesis, properties, and applications of iron nanoparticles
    Huber, DL
    [J]. SMALL, 2005, 1 (05) : 482 - 501
  • [5] HYSTERESIS PROPERTIES OF DISTRIBUTIONS OF CUBIC SINGLE-DOMAIN FERROMAGNETIC PARTICLES
    JOFFE, I
    HEUBERGER, R
    [J]. PHILOSOPHICAL MAGAZINE, 1974, 29 (05) : 1051 - 1059
  • [6] Nanoscaling laws of magnetic nanoparticles and their applicabilities in biomedical sciences
    Jun, Young-Wook
    Seo, Jung-Wook
    Cheon, Anw
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 2008, 41 (02) : 179 - 189
  • [7] Multifunctional nanostructured materials for multimodal imaging, and simultaneous imaging and therapy
    Kim, Jaeyun
    Piao, Yuanzhe
    Hyeon, Taeghwan
    [J]. CHEMICAL SOCIETY REVIEWS, 2009, 38 (02) : 372 - 390
  • [8] Lee H., 2009, ANGEW CHEM, V121, P5767, DOI DOI 10.1002/ANGE.200901791
  • [9] Chip-NMR biosensor for detection and molecular analysis of cells
    Lee, Hakho
    Sun, Eric
    Ham, Donhee
    Weissleder, Ralph
    [J]. NATURE MEDICINE, 2008, 14 (08) : 869 - 874
  • [10] Ultrasensitive Detection of Bacteria Using Core-Shell Nanoparticles and an NMR-Filter System
    Lee, Hakho
    Yoon, Tae-Jong
    Weissleder, Ralph
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (31) : 5657 - 5660
12