Synthesis and Characterization of Magnetoferritin

• Authors: Z. Mitróová , L. Melníková , J. Kováč , M. Timko , P. Kopčanský
• Languages of publication: EN

Abstracts

EN

The paper presents detailed experimental study of synthesis and characterization a bioinorganic magnetic molecule - magnetoferritin. Magnetoferritin with loading of iron ions per protein molecule in the range from 300 to 3000 was prepared. Size distribution analysis (transmission electron microscopy, dynamic light scattering) shows spherical nanoparticles with particle size distribution from 2 to 12 nm, and hydrodynamic diameter from 12 to 25 nm. The thermomagnetic curves measured after cooling the sample in zero field (zero-field cooling) and under the presence of the measurement field (field cooling) show superparamagnetic behavior with the blocking temperature T_{b} from 22 to 60 K and the magnetization loops measured below T_{b} (at 2 K) show the hysteresis with coercive field from 20 to 30 kA/m depending on the concentration of the magnetic nanoparticles.

Keywords

EN

75.30.Cr; 75.50.Ee; 75.60.Ej; 75.50.Tt

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 75.50.Tt: Fine-particle systems; nanocrystalline materials
• 75.50.Ee: Antiferromagnetics
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 5-6
• Pages: 1318-1320

Dates

published

2012-05

Contributors

author

Z. Mitróová

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

author

L. Melníková

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

author

J. Kováč

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

author

M. Timko

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

author

P. Kopčanský

• Institute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia

References

• 1. F.C. Meldrun, B.R. Heywood, S. Mann, Science 257, 522 (1992)
• 2. S. Gider, D.D. Awschalom, T. Douglas, S. Mann, M. Chaparala, Science 268, 77 (1995)
• 3. K.K.W. Wong, T. Douglas, S. Gider, D.D. Awschalom, S. Mann, Chem. Mater. 10, 279 (1998)
• 4. W. Wang, M.A. Knovich, L.G. Coffman, F.M. Torti, S.V. Torti, Biochim. Biophys. Acta 1800, 760 (2010)
• 5. V.C. Jordan, M.R. Caplan, K.M. Bennett, Magn. Reson. Med. 64, 1260 (2010)
• 6. A. Figuerola, R. Di Corato, L. Manna, T. Pellegrino, Pharmacol. Res. 62, 126 (2010)
• 7. M.J. Martinez-Perez, R. de Miguel, C. Carbonera, M. Martinez-Julvez, A. Lostao, C. Piquer, C. Gomez-Moreno, J. Bartolome, F. Luis, Nanotechnology 21, 465707 (2010)
• 8. M. Uchida, M.L. Flenniken, M. Allen, D.A. Willits, B.E. Crowley, S. Brumfield, A.F. Willis, L. Jackiw, M. Jutila, M.J. Young, T. Douglas, J. Am. Chem. Soc. 128, 16626 (2006)
• 9. A. Soriano-Portillo, M. Clemente-Léon, C.J. Gomez-Garcia, E. Coronado, N. Galvez, E. Colacio, J.M. Dominguez-Vera, Synth. Met. 148, 7 (2005)
• 10. O. Kasyutich, D. Tatchev, A. Hoell, F. Ogrin, C. Deewhurst, W. Schwarzacher, J. Appl. Phys. 105, 07B528 (2009)
• 11. T.L. Xiang, C.Ch. Qian, L.Q. Song, P.Y. Xin, Chin. Sci. Bull. 55, 3174 (2010)
• 12. R.P. Guertin, N. Harrison, Z.X. Zhou, S. McCall, F. Drymiotis, J. Magn. Mater. 308, 97 (2007)
• 13. M. Koralewski, M. Pochylski, Z. Mitróová, M. Timko, P. Kopčanský, L. Melníková, J. Magn. Mater. 323, 2413 (2011)

Identifiers

DOI

10.12693/APhysPolA.121.1318