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Elastic properties of bacterial magnetite nanoparticles suspension

A. Józefczak1 - A. Hashim2 - M. Molcan2 - T. Hornowski1 - A. Skumiel1 - M. Rajnak2 - P. Kopčanský2 - M. Timko2

1 Institute of Acoustics, Faculty of Physics, Adam Mickiewicz University, Pozna{ń Poland
2 Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia

The objective of the work is to study the biological magnetic nanoparticles (magnetosomes) as a product of the biomineralization process of magnetotactic bacteria Magneto\-spirillum sp.AMB-1. This paper presents an ultrasound method based on the measure\-ments of compression wave velocities and determination of the phase velocity of a wave. The obtained data allow determination of the mechanical characteristics of the sus\-pension. The study of elastic properties shows that the bulk modulus of a bacterial mag\-neto\-some suspension increases with the increase of temperature like in a chemically synthesized magnetite nanoparticle suspension. Figs 2, Refs 16.

Magnetohydrodynamics 49, No. 3/4, 411-415, 2013 [PDF, 0.18 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X