Results 21 to 30 of about 6,841 (202)

Integrated Microfluidic–Electromagnetic System to Probe Single-Cell Magnetotaxis in Microconfinement

Bioengineering, 2023
Magnetotactic bacteria have great potential for use in biomedical and environmental applications due to the ability to direct their navigation with a magnetic field.
Brianna Bradley, Juan Gomez-Cruz, Carlos Escobedo   +2 more
doaj   +1 more source

Velocity Condensation for Magnetotactic Bacteria [PDF]

Physical Review Letters, 2016
Magnetotactic swimmers tend to align along magnetic field lines against stochastic reorientations. We show that the swimming strategy, e.g. active Brownian motion versus run-and-tumble dynamics, strongly affects the orientation statistics. The latter can exhibit a velocity condensation whereby the alignment probability density diverges.
Rupprecht, Jean-Francois, Waisbord, Nicolas, Ybert, Christophe, Cottin-Bizonne, Cécile, Bocquet, Lydéric   +4 more
openaire   +3 more sources

Flagella and Swimming Behavior of Marine Magnetotactic Bacteria

Biomolecules, 2020
Marine environments are generally characterized by low bulk concentrations of nutrients that are susceptible to steady or intermittent motion driven by currents and local turbulence.
Wei-Jia Zhang, Long-Fei Wu
doaj   +1 more source

Isolation and cultivation of a novel sulfate-reducing magnetotactic bacterium belonging to the genus Desulfovibrio.

PLoS ONE, 2021
Magnetotactic bacteria (MTB) synthesize magnetosomes composed of membrane-enveloped magnetite (Fe3O4) and/or greigite (Fe3S4) nanoparticles in the cells.
Hirokazu Shimoshige, Hideki Kobayashi, Shigeru Shimamura, Toru Mizuki, Akira Inoue, Toru Maekawa   +5 more
doaj   +1 more source

The identification and biogeochemical interpretation of fossil magnetotactic bacteria [PDF]

, 2008
Magnetotactic bacteria, which most commonly live within the oxic-anoxic transition zone (OATZ) of aquatic environments, produce intracellular crystals of magnetic minerals, specifically magnetite or greigite.
Kirschvink, Joseph L., Kopp, Robert E.
core   +1 more source

Genomic Expansion of Magnetotactic Bacteria Reveals an Early Common Origin of Magnetotaxis with Lineage-specific Evolution [PDF]

, 2018
The origin and evolution of magnetoreception, which in diverse prokaryotes and protozoa is known as magnetotaxis and enables these microorganisms to detect Earth’s magnetic field for orientation and navigation, is not well understood in evolutionary ...
A Gurevich, A Stamatakis, A Stamatakis, ACV Araujo, Andrew P. Roberts, B Ji, C Esser, C Jogler, C Jogler, C Jogler, CT Lefèvre, CT Lefèvre, CT Lefèvre, CT Lefèvre, CT Lefèvre, D Darriba, DA Bazylinski, DD Kang, Dennis A. Bazylinski, DH Parks, EF DeLong, EK Field, F Abreu, F Abreu, Greig A. Paterson, H Fullerton, HH Lin, I Letunic, JB Rioux, JL Kirschvink, K Anantharaman, K Laufer, K Tamura, KT Konstantinidis, LC Benjamin, LM Rodriguez-R, M Winklhofer, MN Price, MP Ferla, N Segata, R Uebe, RB Frankel, RC Edgar, S Kolinko, S Kolinko, S Kolinko, S Nurk, S Schübbe, S Spring, S Spring, S Ullrich, SF Altschul, SL Simmons, T Sakaguchi, T Seemann, V Morillo, W Li, W Lin, W Lin, W Lin, W Lin, W Lin, W Lin, W Lin, Wei Lin, Wensi Zhang, Xiang Zhao, Yongxin Pan   +67 more
core   +3 more sources

Positioning the Flagellum at the Center of a Dividing Cell To Combine Bacterial Division with Magnetic Polarity

mBio, 2015
Faithful replication of all structural features is a sine qua non condition for the success of bacterial reproduction by binary fission. For some species, a key challenge is to replicate and organize structures with multiple polarities.
Christopher T. Lefèvre, Mathieu Bennet, Stefan Klumpp, Damien Faivre   +3 more
doaj   +1 more source

Controlled biomineralization of magnetite (Fe₃O₄) by Magnetospirillum gryphiswaldense [PDF]

, 2008
Results from a study of the chemical composition and micro-structural characteristics of bacterial magnetosomes extracted from the magnetotactic bacterial strain Magnetospirillum gryphiswaldense are presented here.
Bauerlein, Bazylinski, Bazylinski, C. Moisescu, D. Tobler, I. Ardelean, L. G. Benning, Lang, Lowenstam, Meldrum, Posfai, S. Bonneville, Weiner   +12 more
core   +2 more sources

Chemical signature of magnetotactic bacteria [PDF]

Proceedings of the National Academy of Sciences, 2015
Significance Magnetite precipitates through either abiotic or biotic processes. Magnetotactic bacteria synthesize nanosized magnetite intracellularly and may represent one of the most ancient biomineralizing organisms. Thus, identifying bacterial magnetofossils in ancient sediments remains a key point to constrain life evolution over ...
Amor, Matthieu, Busigny, Vincent, Durand-Dubief, Mickaël, Tharaud, Mickaël, Ona-Nguema, Georges, Gélabert, Alexandre, Alphandéry, Edouard, Menguy, Nicolas, Benedetti, Marc, Chebbi, Imène, Guyot, François   +10 more
openaire   +3 more sources

The Effect of Sonication on Acoustic Properties of Biogenic Ferroparticle Suspension

Archives of Acoustics, 2015
Superparamagnetic iron oxide nanoparticles (SPION) synthesised chemically usually need the modification of the particle surface. Other natural sources of magnetic particles are various magnetotactic bacteria.
Arkadiusz JÓZEFCZAK, Tomasz HORNOWSKI, Anita KRÓL, Matúš MOLČAN, Błażej LESZCZYŃSKI, Milan TIMKO   +5 more
doaj   +1 more source