TITLE

Magnetometric Measurements of Low Concentration of Coated Fe3O4 Nanoparticles

AUTHOR(S)
ŠKRÁTEK, M.; ŠIMÁČEK, I.; DVUREČENSKIJ, A.; MAJEROVÁ, M.; MAŇKA, J.
PUB. DATE
July 2014
SOURCE
Acta Physica Polonica, A.;Jul2014, Vol. 126 Issue 1, p396
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A modified RF SQUID system with the 2nd order gradiometer has been tested for the purposes of detecting the magnetic nanoparticles as potential carriers of biological medicament. The paper presents basic information about the sensitivity of the system and its use for quantification of low concentration of coated Fe3O4 magnetic nanoparticles. Model measurements provided information that enabled us to define the parameter influencing the experimental results. The volume of the biological object and its distance from the antenna appear to have the significant influence on the measurement accuracy.
ACCESSION #
96793519

 

Related Articles

  • Magnetic Field Dependence of Blocking Temperature in Oleic Acid Functionalized Iron Oxide Nanoparticles. Tanwar, Sanju; Awana, V.; Singh, Surinder; Pasricha, Renu // Journal of Superconductivity & Novel Magnetism;Aug2012, Vol. 25 Issue 6, p2041 

    We report the synthesis of phase pure, mono-dispersed FeO nanoparticles of size ∼10 nm via chemical co-precipitation of ferrous and ferric ions, under controlled pH and temperature. The nanoparticles are oleic acid functionalized and hence dispersible in organic medium. The structure and...

  • Structural disorder versus spin canting in monodisperse maghemite nanocrystals. Kubickova, S.; Niznansky, D.; Herrero, M. P. Morales; Salas, G.; Vejpravova, J. // Applied Physics Letters;6/2/2014, Vol. 104 Issue 22, p1 

    Monodisperse maghemite nanoparticles with diameter ranging from 7 to 20 nm were examined by the In-field Mössbauer Spectroscopy (IFMS) in varying external magnetic field up to 6 T. Surprisingly, the small-sized particles (7 nm) exhibit nearly no spin canting in contrast to the larger...

  • Electroactive Polymer Based Conducting, Magnetic, and Luminescent Triple Composites. KUKHTA, Alexander V.; PADDUBSKAYA, Alesya G.; KUZHIR, Polina P.; MAKSIMENKO, Sergey A.; VOROBYOVA, Svetlana A.; BELLUCCI, Stefano; KHANNA, Pawan K. // Advances in Science & Technology;2017, Vol. 97, p24 

    The latest our results on triple polymer composites based on graphene nanoplatelets (GNP) covered by copper nanoparticles, iron oxide nanoparticles, and CdSe two-dimensional and spherical nanoparticles are presented and analyzed. It was found that GNP covered by copper nanoparticles results in...

  • Dynamics of magnetic domain walls in an oscillating field. Wang, Han-Ting; Chui, S. T. // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p6499 

    The dynamics of domain walls in an ac magnetic field is formulated and solved numerically under free boundary conditions. Previous calculations are applicable only in the limit when the sample size is much less than the bare penetration depth, whereas no such approximation is made in the present...

  • Probing microstructure of magnetic dispersions via transverse susceptibility: Experiment versus simulation. Benakli, M.; Visscher, P. B.; Chae, B. S.; Lane, A. M. // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p5657 

    Recently transverse susceptibility has been measured to test the quality of dispersions of magnetic particles. In this measurement, a dc magnetic field is applied to orient the particles. To monitor their microstructure, we record the transverse susceptibility (the response to a small ac...

  • Brownian relaxation of magnetic nanoparticles in fluid: the effect of the solvent. Lucchini, M.; Canepa, F. // Journal of Nanoparticle Research;Apr2012, Vol. 14 Issue 4, p1 

    The magnetic contribution of the solvent on the RT ac magnetic susceptibility behaviour of FeO magnetic nanoparticles in solution at different concentrations, is presented and discussed. The room temperature complex susceptibility of the solvent water was studied as a function of several...

  • Electrical andMagnetic Properties of Polymer Electrolyte (PVA:LiOH) Containing In Situ Dispersed Fe3O4 Nanoparticles. Aji, M. P.; Rahmawati; Masturi; Bijaksana, S.; Khairurrijal; Abdullah, M. // ISRN Materials Science;2012, p1 

    Nanocomposite magnetic polymer electrolytes based on poly(vinyl alcohol) (PVA) complexed with lithium hydroxide (LiOH) and containing magnetite (Fe3O4) nanoparticles were prepared using an in situ method, in which the nanoparticles were grown in the host polymer electrolyte. Ion carriers were...

  • Quadrupole Excitations in Magnetic Susceptibility of Magnetic Nanoparticle Fe8. Yousefi, Yousef // Advances in Condensed Matter Physics;3/24/2015, Vol. 2015, p1 

    Magnetic susceptibility dependence on temperatures in different magnetic fields will be discussed. Until today, to calculate magnetization and magnetic susceptibility, only dipole excitations have been considered, but, due to the symmetry of operators in Hamiltonian and also to achieve more...

  • Quantum Transformation of Spin Structure of a Fe[sub 8] Nanocluster in Ultrastrong Magnetic Fields. Zvezdin, A. K.; Plis, V. I.; Popov, A. I. // Physics of the Solid State;Jun2000, Vol. 42 Issue 6, p1100 

    The transformation of the spin structure of a high-spin Fe[sub 8] cluster in a strong magnetic field has been investigated. The magnetization and magnetic susceptibility of the material are calculated at different external magnetic fields and temperatures. It is shown that the magnetic field...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics