Magnetization processes in magnetotactic bacteria systems |
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| Institution: | 1. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya, c/Jordi Girona 1-3, 08034 Barcelona, Spain;2. Department of Magnetism, Institute of Physics ASCR, Na Slovance 2, 18221 Prague 8, Czech Republic;1. Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada;2. Biomedical Engineering Department, The Cleveland Clinic Foundation, Cleveland, Ohio, USA;1. Institute of Physics AS CR, Prague, Czech Republic;2. Institute of Experimental Medicine AS CR, Prague, Czech Republic;1. Institute of Physics AS CR, v.v.i., Prague 8, Czech Republic;2. Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm 89081, Germany;1. Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany;2. Institute of Physics Academy of Sciences of the Czech Republic, Prague 8, Czech Republic;1. National Technical University of Ukraine, “Igor Sikorsky Kyiv Polytechnic Institute”, Ukraine;2. Institute of Magnetism of NAS and MES of Ukraine, Ukraine;3. Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic;4. International Magnetobiology Frontier Research Center (iMFRC), Science Island, China |
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| Abstract: | In low fields, the magnetization of magnetotactic bacteria (MTB) culture is affected by chemotaxis and can be described by the Langevin function which depends on magnetic field strength and chemotaxis energy. In moderate fields, bacteria magnetization switching occurs as the second-order phase transition induced by increasing the field applied opposite the MTB magnetic moments. For bacteria containing one or two chains of magnetosomes we calculated the switching field as a function of the gap between magnetic particles. |
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