Morphological Changes in Magnetotactic Bacteria in Presence of Magnetic Fields
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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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...
متن کاملBirefringence determination of magnetic moments of magnetotactic bacteria.
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.
متن کاملLight scattering determination of magnetic moments of magnetotactic bacteria (invited)
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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ژورنال
عنوان ژورنال: Journal of Biomedical Nanotechnology
سال: 2007
ISSN: 1550-7033
DOI: 10.1166/jbn.2007.006