Study of Magnetite Nanoparticle Suspensions by Photometry and NMR Relaxometry

被引：10
作者：
Bogachev, Yu. V. [1 ]
Gareev, K. G. [1 ]
Matyushkin, L. B. [1 ]
Moshnikov, V. A. [1 ]
Naumova, A. N. [1 ]
机构：
[1] Ulyanov Lenin St Petersburg Electrotech Univ LETI, St Petersburg 197376, Russia
来源：
PHYSICS OF THE SOLID STATE | 2013年 / 55卷 / 12期
关键词：
Magnetite; Transmission Coefficient; Constant Magnetic Field; Spin Relaxation Time; Magnetic Field Induction;
D O I：
10.1134/S106378341312007X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A method has been described for preparation of suspensions of magnetite nanoparticles stabilized by porous silicon dioxide. The process of sedimentation of nanoparticles in suspensions of different compositions and concentrations has been analyzed by transmission coefficient measurements. Spectra of the transmission coefficient have been obtained for suspensions containing composite nanoparticles, the initial silicon dioxide, and macroscopic magnetite particles. The average effective radius of nanoparticles has been calculated from the time dependences of the transmission coefficient. It has been demonstrated that the synthesized nanoparticles possess magnetic-resonance contrast properties.
引用
收藏
页码：2431 / 2435
页数：5
相关论文
共 17 条
  • [1] Ferromagnetic resonance in suspensions of cobalt-substituted magnetite
    Aleksashkin, IV
    Berzhanskii, VN
    Polulyakh, SN
    Turishchev, MV
    [J]. PHYSICS OF THE SOLID STATE, 2004, 46 (08) : 1487 - 1489
  • [2] Magnetoactive feature of in-situ polymerised polyaniline film developed on the surface of manganese-zinc ferrite
    Babayan, V.
    Kazantseva, N. E.
    Sapurina, I.
    Moucka, R.
    Vilcakova, J.
    Stejskal, J.
    [J]. APPLIED SURFACE SCIENCE, 2012, 258 (19) : 7707 - 7716
  • [3] Combined effect of demagnetizing field and induced magnetic anisotropy on the magnetic properties of manganese-zinc ferrite composites
    Babayan, V.
    Kazantseva, N. E.
    Moucka, R.
    Sapurina, I.
    Spivak, Yu. M.
    Moshnikov, V. A.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (02) : 161 - 172
  • [4] Bogachev Yu. V., 1012, IZV S PETERB GOS ELE, P10
  • [5] Coey J M. D., 2010, Magnetism and Magnetic Materials, P464, DOI DOI 10.1017/CBO9780511845000
  • [6] FARRAR TC, 1973, PULSE FOURIER TRANSF
  • [7] 55Mn spin relaxation with the participation of mobile carriers in doped perovskites
    Fokina, NP
    Élizbarashvili, MO
    [J]. PHYSICS OF THE SOLID STATE, 2005, 47 (03) : 513 - 516
  • [8] Properties of Three-Dimensional Composites Based on Opal Matrices and Magnetic Nanoparticles
    Ivicheva, S. N.
    Kargin, Yu. F.
    Ovchenkov, E. A.
    Koksharov, Yu. A.
    Yurkov, G. Yu.
    [J]. PHYSICS OF THE SOLID STATE, 2011, 53 (06) : 1114 - 1120
  • [9] Johns R. A., 1993, MAGNETIC RESONANCE M
  • [10] Metal-Substituted Protein MRI Contrast Agents Engineered for Enhanced Relaxivity and Ligand Sensitivity
    Lelyveld, Victor S.
    Brustad, Eric
    Arnold, Frances H.
    Jasanoff, Alan
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (04) : 649 - 651
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