Structural and Thermophysical Properties of Magnetic Beads Containing Metallic Nanocrystallites

• Authors: M. Izydorzak , M. Leonowicz , A. Skumiel
• Languages of publication: EN

Abstracts

EN

Cobalt, iron, nickel and iron carbide nanocrystallites, stabilized within carbon beads, were prepared by the three-step procedure including formation of metal acrylamide complex, followed by frontal polymerization and pyrolysis of the polymer at various temperatures. The beads containing the nanocrystallites exhibit domination of the ferromagnetic ordering. The analysis of calorimetric results allowed estimation of the efficiency of the hyperthermal effect, under the influence of an alternating magnetic field. The XTT tests show that the extracts prepared on the basis of the Fe_3C containing beads are nontoxic, whereas these made of the composites containing Co and Ni exhibit negligible cytotoxicity for the test article/vehicle ratios 6.25 and 3.125 mg/ml.

Keywords

EN

75.50.Bb; 75.75.-c; 81.07.-b

Discipline

• 75.75.-c: Magnetic properties of nanostructures
• 81.07.-b: Nanoscale materials and structures: fabrication and characterization(for structure of nanoscale materials, see 61.46.-w; for nanostructured materials in electrochemistry, see 82.45.Yz; see also 62.23.-c Structural classes of nanoscale systems in mechanical properties of condensed matter)
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1
• Pages: 68-70

Dates

published

2012-01

Contributors

author

M. Izydorzak

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland

author

M. Leonowicz

• Faculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland

author

A. Skumiel

• Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

References

• 1. T.T. Sandor, D.F. Adams, Am. J. Roentg. 132, 433 (1997)
• 2. C. Brigger, C. Dubernet, P. Couvreur, Adv. Drug. Deliv. Rev. 54, 632 (2002)
• 3. E. Sowka, M. Leonowicz, A.D. Pomogailo, G.I. Dzhardimalieva, J. Kazmierczak, A. Slawska-Waniewska, M. Kopcewicz, J. Magn. Magn. Mater. 316, 749 (2007)
• 4. A.D. Pomogailo, G.I. Dzhardimalieva, Achiev. Problems, Polym. Sci. Ser. A 46, 250 (2004)

Identifiers

DOI

10.12693/APhysPolA.121.68