Bulk magnetic properties of magnetotactic bacteria
نویسندگان
چکیده
منابع مشابه
Magnetic Properties of Magnetotactic Bacteria
This paper reports on the magnetic properties of magnetosomes in the freshwater magnetotactic bacterium Aquaspirillum nlllgnetOlaClicwn. The magnetosomes are well crystallized particles of magnetite with dimensions of 40 to 50 nm, which are arranged within cells in a single linear chain and are within the single-magnetic-domain (SO) size range for. magnetite. A variety of magnetic properties ha...
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Bruce M. Moskowitz,1 Dennis A. Bazylinski,2 Ramon Egli,3 Richard B. Frankel4 and Katrina J. Edwards5 1Institute for Rock Magnetism, Department of Geology and Geophysics, University of Minnesota-Twin Cities, 310 Pillsbury Dr, SE, Minneapolis, MN 55455, USA. E-mail: [email protected] 2School of Life Sciences, University of Nevada-Las Vegas, Las Vegas, NV 89154-4004, USA 3Department of Earth and Envir...
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A birefringence technique is used to determine the average magnetic moments of magnetotactic bacteria in culture. Differences in are noted between live and dead bacteria, as well as between normal density and high density samples of live bacteria.
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where a = ~H/kBT, kB i~ Boltzmann's constant, T is te~ perature, and ~ is def1ned as before. The total stat1c structure factor S(QL,QR,a) is therefore the single nilrticle structllre factor, \~eighted by th" angular dis tribution function, integrated over all angles: S(QL,QR,a) = Nf p(~,a) Ssp(QL,QR,~) d~ (3) Light scattering was used to determine both ~he. average length8 and magnetic moment...
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Magnetotactic bacteria benefit from their ability to form cellular magnetic dipoles by assembling stable single-domain ferromagnetic particles in chains as a means to navigate along Earth's magnetic field lines on their way to favorable habitats. We studied the assembly of nanosized membrane-encapsulated magnetite particles (magnetosomes) by ferromagnetic resonance spectroscopy using Magnetospi...
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ژورنال
عنوان ژورنال: IEEE Transactions on Magnetics
سال: 1980
ISSN: 0018-9464
DOI: 10.1109/tmag.1980.1060821