Magnetic Birefringence Study of the Magnetic Core Structure of Ferritin |
| M. Koralewskia, M. Pochylskia, Z. Mitróováb, L. Melníkováb, J. Kováčb, M. Timkob and P. Kopčanskýb
aFaculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland bInstitute of Experimental Physics, SAS, Watsonova 47, 040 01 Kosice, Slovakia |
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| Magnetically induced optical birefringence (Δn) was measured for magnetoferritin and horse spleen ferritin aqueous suspensions. The Δn for magnetoferritin was described in the frame of the Langevin formalism taking into account distribution of core diameter. The established average magnetic dipole moment and core diameter is equal to about 460 μB and 3 nm, respectively. It was shown that magnetic birefringence and the Cotton-Mouton constant can be powerful parameters in identification of the magnetic core structure of ferritin, especially useful in biomedicine. |
| DOI: 10.12693/APhysPolA.121.1237 PACS numbers: 78.20.Ls, 87.15.-v, 87.85.jf |