Preparation and magnetic properties of cobalt nanoparticles with dendrimers as templates

被引：19
|
作者：
Wu, Hui-Xia [1 ]
Zhang, Cui-Xia [1 ]
Jin, Lei [1 ]
Yang, Hong [1 ]
Yang, Shi-Ping [1 ]
机构：
[1] Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2010年 / 121卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Amorphous materials; Chemical synthesis; Magnetometer; Magnetic properties; FERRITE NANOCRYSTALS; IN-VITRO; ENCAPSULATED NANOPARTICLES; POLYAMIDOAMINE DENDRIMERS; CO; FABRICATION; PARTICLES; CATALYSTS; DELIVERY; ROUTE;
D O I：
10.1016/j.matchemphys.2010.01.049
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of cobalt (Co) nanoparticles were synthesized by employing dendrimers with a trimesyl core as templates and sodium borohydride as a reducing agent. Extensive characterizations of the produced materials were studied using TEM, selected area electron diffraction, energy-dispersive X-ray spectroscopy, FT-IR spectra, TGA, and XPS. And their magnetic properties, including hysteresis loop, field-cooled and zero-field-cooled curves, were investigated by superconducting quantum interference magnetometer. The nanoparticles exhibit supermagnetism at room temperature, accompanied by magnetic hysteresis below the blocking temperature. Co nanoparticles exhibited an excellent T-1 MRI enhancement effect and can be a potential MRI contrast agent. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：342 / 348
页数：7
相关论文
共 50 条
  • [31] Cobalt nanoparticles in block copolymer micelles: Preparation and properties
    O. A. Platonova
    L. M. Bronstein
    S. P. Solodovnikov
    I. M. Yanovskaya
    E. S. Obolonkova
    P. M. Valetsky
    E. Wenz
    M. Antonietti
    Colloid and Polymer Science, 1997, 275 : 426 - 431
  • [32] Cobalt nanoparticles in block copolymer micelles: Preparation and properties
    Platonova, OA
    Bronstein, LM
    Solodovnikov, SP
    Yanovskaya, IM
    Obolonkova, ES
    Valetsky, PM
    Wenz, E
    Antonietti, M
    COLLOID AND POLYMER SCIENCE, 1997, 275 (05) : 426 - 431
  • [33] Preparation and properties of silica-coated cobalt nanoparticles
    Kobayashi, Y
    Horie, M
    Konno, M
    Rodríguez-González, B
    Liz-Marzán, LM
    JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (30): : 7420 - 7425
  • [34] Combining Unique Properties of Dendrimers and Magnetic Nanoparticles Towards Cancer Theranostics
    Chandra, Sudeshna
    Nigam, Saumya
    Bahadur, Dhirendra
    JOURNAL OF BIOMEDICAL NANOTECHNOLOGY, 2014, 10 (01) : 32 - 49
  • [35] Preparation of Cobalt Nanoparticles
    Khusnuriyalova, Aliya F.
    Caporali, Maria
    Hey-Hawkins, Evamarie
    Sinyashin, Oleg G.
    Yakhvarov, Dmitry G.
    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2021, 2021 (30) : 3023 - 3047
  • [36] Effect of light on the magnetic properties of cobalt ferrite nanoparticles
    Giri, AK
    Pellerin, K
    Pongsaksawad, W
    Sorescu, M
    Majetich, SA
    IEEE TRANSACTIONS ON MAGNETICS, 2000, 36 (05) : 3029 - 3031
  • [37] Enhanced magnetic properties of cobalt nanoparticles on FeMn films
    Lu, Liying
    Xu, Xiaoguang
    Zhang, Wentao
    Miao, Jun
    Jiang, Yong
    MATERIALS LETTERS, 2010, 64 (22) : 2424 - 2426
  • [38] Magnetic properties and microstructure of cobalt nanoparticles in a polymer film
    Park, IW
    Yoon, M
    Kim, YM
    Kim, Y
    Yoon, H
    Song, HJ
    Volkov, V
    Avilov, A
    Park, YJ
    SOLID STATE COMMUNICATIONS, 2003, 126 (07) : 385 - 389
  • [39] Structural and magnetic properties of iron, cobalt and nickel nanoparticles
    Alagiri, M.
    Muthamizhchelvan, C.
    Ponnusamy, S.
    SYNTHETIC METALS, 2011, 161 (15-16) : 1776 - 1780
  • [40] Magnetic, electric and thermal properties of cobalt ferrite nanoparticles
    Leroux, Ch., 1600, Elsevier Ltd (59):
12345