Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: International Conference on Magnetic Fluids (ICMF12); Sendai, JAPAN; Sendai, JAPAN
Год издания: 2010
Идентификатор DOI: 10.1016/j.phpro.2010.11.062
Ключевые слова: ferrihydrite nanoparticles, bacterial culture, magnetism, biomiraliztaion, Antiferromagnetic orders, Bacterial cultures, Biominerals, Crystalline modifications, Ferrihydrites, Iron salts, Magnetic parameters, Nanomedicines, Natural objects, Numerical values, Sub-lattices, Antiferromagnetic materials, Antiferromagnetism, Bacteriology, Biomineralization, Magnetic fields, Magnetic fluids, Magnetic moments, Magnetic susceptibility, Medical nanotechnology, Nanoparticles, Nanomagnetics
Аннотация: Ferrihydrite nanoparticles (2-5 nm in size) produced by bacteria culture in the course of biomineralization of iron salt solutions from a natural medium exhibit unique magnetic properties: they are characterized by both the antiferromagnetic order inherent in a bulk ferrihydrite and the spontaneous magnetic moment due to the decompПоказать полностьюensation of spins in sublattices of a nanoparticle. The magnetic susceptibility enhanced by the superantiferromagnetism effect and the magnetic moment independent of the magnetic field provide the possibility of magnetically controlling these natural objects. This has opened up the possibilities for their use in nanomedicine and bioengineering. The results obtained from measurements of the magnetic properties of the bacterial ferrihydrite in its two main crystalline modifications are reported. This has made it possible to determine numerical values of the magnetic parameters of real biomineral nanoparticles. (C) 2010 Published by Elsevier Ltd
Журнал: 12TH INTERNATIONAL CONFERENCE ON MAGNETIC FLUIDS ICMF12
Выпуск журнала: Vol. 9
Номера страниц: 279-282
ISSN журнала: 18753892
Место издания: AMSTERDAM
Издатель: ELSEVIER SCIENCE BV