Sonochemical gold coating of Fe3O4 nanoparticles and its characterizations

被引：0
|
作者：
Wu Wei
He Quan-Guo [1 ]
Chen Hong
Tang Jian-Xin
Nie Li-Bo
机构：
[1] Hunan Univ Technol, Green Packaging & Biol Nanotechnol Lab, Zhuzhou 412008, Peoples R China
[2] Cent S Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Peoples R China
来源：
ACTA CHIMICA SINICA | 2007年 / 65卷 / 13期
关键词：
Fe3O4/Au magnetic nanoparticle; gold coating; sonochemical synthesis; surface modification; magnetic property; magnetite;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Air-stable nanoparticles Fe3O4/Au have been prepared via sonolysis of a solution of hydrogen tetrachloroaureate(III) trillydrate (HAuCl4) and (3-aminopropyl)triethoxysilane (APTES)-coated Fe3O4 nanoparticles with further drop-addition of sodium citrate. The Fe3O4/Au nanoparticles have been characterized by X-ray powder diffraction (XRD), ultraviolet-visible spectroscopy (UV-Vis), scanning electron microscopy (SEM) with the energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and superconducting quantum interference device (SQUID) magnetometry. Fe3O4/Au nanoparticles obtained under appropriate conditions possess a very high saturation magnetization of about 63 emu.g(-1), and their average diameter was about 30 nm.
引用
收藏
页码：1273 / 1279
页数：7
相关论文
共 19 条
  • [1] Hydroxylamine seeding of colloidal Au nanoparticles in solution and on surfaces
    Brown, KR
    Natan, MJ
    [J]. LANGMUIR, 1998, 14 (04) : 726 - 728
  • [2] Fe3O4/Au composite nano-particles and their optical properties
    Cui, YL
    Hui, WL
    Su, J
    Wang, YN
    Chen, C
    [J]. SCIENCE IN CHINA SERIES B-CHEMISTRY, 2005, 48 (04): : 273 - 278
  • [3] Novel superparamagnetic core(shell) nanoparticles for magnetic targeted drug delivery and hyperthermia treatment
    Gangopadhyay, P
    Gallet, S
    Franz, E
    Persoons, A
    Verbiest, T
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 2005, 41 (10) : 4194 - 4196
  • [4] Single-dose toxicity study of hepatic intra-arterial infusion of doxorubicin coupled to a novel magnetically targeted drug carrier
    Goodwin, SC
    Bittner, CA
    Peterson, CL
    Wong, G
    [J]. TOXICOLOGICAL SCIENCES, 2001, 60 (01) : 177 - 183
  • [5] Magnetic cell sorting for parietal cell purification using a new monoclonal antibody without influence on cell function
    Graepler, F
    Lauer, U
    Gregor, M
    [J]. JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS, 1998, 36 (2-3): : 143 - 155
  • [6] What controls the melting properties of DNA-linked gold nanoparticle assemblies?
    Jin, RC
    Wu, GS
    Li, Z
    Mirkin, CA
    Schatz, GC
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (06) : 1643 - 1654
  • [7] Sonochemical synthesis, structural and magnetic properties of air-stable Fe/Co alloy nanoparticles
    Li, QL
    Li, HL
    Pol, VG
    Bruckental, I
    Koltypin, Y
    Calderon-Moreno, J
    Nowik, I
    Gedanken, A
    [J]. NEW JOURNAL OF CHEMISTRY, 2003, 27 (08) : 1194 - 1199
  • [8] Size and temperature dependence of the plasmon absorption of colloidal gold nanoparticles
    Link, S
    El-Sayed, MA
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (21): : 4212 - 4217
  • [9] Synthesis of Fe oxide core/Au shell nanoparticles by iterative hydroxylamine seeding
    Lyon, JL
    Fleming, DA
    Stone, MB
    Schiffer, P
    Williams, ME
    [J]. NANO LETTERS, 2004, 4 (04) : 719 - 723
  • [10] Superparamagnetism of magnetite nanoparticles: Dependence on surface modification
    Mikhaylova, M
    Kim, DK
    Bobrysheva, N
    Osmolowsky, M
    Semenov, V
    Tsakalakos, T
    Muhammed, M
    [J]. LANGMUIR, 2004, 20 (06) : 2472 - 2477
12