Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-14T19:36:52.199Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetometric Measurements of Ferro- or Ferrimagnetic Microparticles Dispersed in Medium Approximating the Intracellular Environment

Published online by Cambridge University Press:  26 February 2011

Peter Jurdak ,
Martin Kopani ,
Ivan Šimacek ,
Jan Manka  and
Martin Škrátek
Peter Jurdak
Affiliation:
umerjurd@savba.sk, Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 84104, Slovakia
Martin Kopani
Affiliation:
martin.kopani@gmail.com, Comenius University, School of Medicine, Department of Pathology, Sasinkova 4, Bratislava, 81108, Slovakia
Ivan Šimacek
Affiliation:
umersima@savba.sk, Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 84104, Slovakia
Jan Manka
Affiliation:
umermana@savba.sk, Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 84104, Slovakia
Martin Škrátek
Affiliation:
umermato@savba.sk, Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, 84104, Slovakia
Get access

Abstract

Relaxation of the remanent magnetization produced by samples with magnetized ferromagnetic micro-particles dispersed in a liquid non-ferromagnetic material was measured. The intracellular environment was simulated by liquid with two various viscosities. Using the SQUID gradiometric system the time-dependences of the relaxation on the intensity of the magnetizing field and the viscosity of non-magnetic carrier liquid have been investigated. Since the relaxation is always present after the magnetizing process, the time-dependences of the relaxation has to be measured for the correction of resulting data in the realistic evaluation of the ferromagnetic contamination of retained dust in the lungs (magnetopneumography), in the magnetic measurement of human iron stores in the liver and it can be also successfully applied in a magnetopneumographic investigation of alveolar clearance.

Keywords

magneticbiologicalferromagnetic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1032: Symposium I – Nanoscale Magnetic Materials and Applications , 2007 , 1032-I04-19
Copyright
Copyright © Materials Research Society 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Šimáček, I., Martinická, F. and Jurdá, P.k in Proceedings of the 5th International Conference Measurement 2005, edited by Frollo, I., Tyšler, M. and Juraš, V., (Inst. Measur. Science, Bratislava, Slovakia, 2003) pp. 144–147.Google Scholar
2. Valberg, P.A. and Zaner, K. S. in Advances in Biomagnetism, edited by Williamson, S.J., (Plenum Press, New York, 1992) pp. 461–467.Google Scholar
3. Carneiro, A.A., Baffa, O. and Oliveira, R.B., Phys. Med. Biol. 44, 1691(1999).10.1088/0031-9155/44/7/309Google Scholar
4. Stahlhofen, W. and Moeller, W., Radiat. Environ. Biophys. 32, 221 (1993).10.1007/BF01209772Google Scholar
5. Cohen, D., Nemoto, I., Kaufman, L. and Akai, S., IEEE Transactions on Biomedical Engineering, BME-31, 274(1984).10.1109/TBME.1984.325266Google Scholar
6. Valberg, P. and Butler, J., Biophysical Journal, 52: 537, (1987).Google Scholar
7. Nemoto, I., IEEE Transactions on Biomedical Engineering, BME-29, 745(1982).10.1109/TBME.1982.324869Google Scholar
8. Moeller, W., Takenaka, S., Rust, M., Stahlhofen, W. and Heyder, J., Jour., of Aerosol Medicine, 10, 173–186(1997).10.1089/jam.1997.10.173Google Scholar