Results 31 to 40 of about 3,992 (192)

Formation of Core-Shell Nanoparticles Composed of Magnetite and Samarium Oxide in Magnetospirillum magneticum Strain RSS-1. [PDF]

PLoS ONE, 2017
Magnetotactic bacteria (MTB) synthesize magnetosomes composed of membrane-enveloped magnetite (Fe3O4) or greigite (Fe3S4) particles in the cells. Recently, several studies have shown some possibilities of controlling the biomineralization process and ...
Hirokazu Shimoshige, Yoshikata Nakajima, Hideki Kobayashi, Keiichi Yanagisawa, Yutaka Nagaoka, Shigeru Shimamura, Toru Mizuki, Akira Inoue, Toru Maekawa   +8 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

Surface expression of protein A on magnetosomes and capture of pathogenic bacteria by magnetosome/ antibody complexes

Frontiers in Microbiology, 2014
Magnetosomes are membrane-enclosed magnetite nanocrystals synthesized by magnetotactic bacteria (MTB). They display chemical purity, narrow size ranges, and species-specific crystal morphologies.
Jun eXu, Junying eHu, Lingzi eLiu, Li eLi, Xu eWang, Huiyuan eZhang, Wei eJiang, Jiesheng eTian, Ying eLi, Jilun eLi   +9 more
doaj   +1 more source

Critical single-domain/multidomain grain sizes in noninteracting and interacting elongated magnetite particles: Implications for magnetosomes [PDF]

, 2006
The critical size for stable single-domain (SD) behavior has been calculated as a function of grain elongation for magnetite grains using a numerical micromagnetic algorithm.
Adrian R. Muxworthy, Amar, Arató, Brown, Brown, Butler, Chang, Fabian, Fletcher, Heider, Kittel, Lins, McCartney, Muxworthy, Muxworthy, Newell, Pauthenet, Petersen, Rave, Shcherbakov, Spring, Suess, Taylor, Taylor, Weiss, Williams, Williams, Witt, Wright, Wyn Williams   +29 more
core   +1 more source

Anomalous magnetic orientations of magnetosome chains in a magnetotactic bacterium: Magnetovibrio blakemorei strain MV-1. [PDF]

PLoS ONE, 2013
There is a good deal of published evidence that indicates that all magnetosomes within a single cell of a magnetotactic bacterium are magnetically oriented in the same direction so that they form a single magnetic dipole believed to assist navigation of ...
Samanbir S Kalirai, Dennis A Bazylinski, Adam P Hitchcock   +2 more
doaj   +1 more source

Biogenic Nanomagnetic Carriers Derived from Magnetotactic Bacteria: Magnetic Parameters of Magnetosomes Inside Magnetospirillum spp.

Applied Sciences, 2023
Magnetic parameters of magnetosomes inside the bacteria of MSR-1, LBB-42, AMB-1, SP-1, BB-1, and SO-1 strains of the genus Magnetospirillum fixed by 5% formalin in the nutrient medium were estimated by measurements of the nonlinear longitudinal response ...
Vyacheslav Ryzhov, Vladimir Deriglazov, Denis Grouzdev, Veronika Koziaeva, Igor Kiselev, Ivan Larionov, Kamil Gareev, Nikita Sitkov, Tatiana Zimina, Yaroslav Marchenko, Maxim Shevtsov   +10 more
doaj   +1 more source

Magnetosome formation in prokaryotes

Nature Reviews Microbiology, 2004
Magnetotactic bacteria were discovered almost 30 years ago, and for many years and many different reasons, the number of researchers working in this field was few and progress was slow. Recently, however, thanks to the isolation of new strains and the development of new techniques for manipulating these strains, researchers from several laboratories ...
Bazylinski, Dennis A., Frankel, Richard B.   +1 more
openaire   +4 more sources

Uptake and persistence of bacterial magnetite magnetosomes in a mammalian cell line: Implications for medical and biotechnological applications.

PLoS ONE, 2019
Magnetotactic bacteria biomineralize intracellular magnetic nanocrystals surrounded by a lipid bilayer called magnetosomes. Due to their unique characteristics, magnetite magnetosomes are promising tools in Biomedicine.
Jefferson Cypriano, Jacques Werckmann, Gabriele Vargas, Adriana Lopes Dos Santos, Karen T Silva, Pedro Leão, Fernando P Almeida, Dennis A Bazylinski, Marcos Farina, Ulysses Lins, Fernanda Abreu   +10 more
doaj   +1 more source

Tethered Magnets Are the Key to Magnetotaxis: Direct Observations of Magnetospirillum magneticum AMB-1 Show that MamK Distributes Magnetosome Organelles Equally to Daughter Cells

mBio, 2017
Magnetotactic bacteria are a unique group of bacteria that synthesize a magnetic organelle termed the magnetosome, which they use to assist with their magnetic navigation in a specific type of bacterial motility called magneto-aerotaxis.
Azuma Taoka, Ayako Kiyokawa, Chika Uesugi, Yousuke Kikuchi, Zachery Oestreicher, Kaori Morii, Yukako Eguchi, Yoshihiro Fukumori   +7 more
doaj   +1 more source

Large-Scale Cultivation of Magnetotactic Bacteria and the Optimism for Sustainable and Cheap Approaches in Nanotechnology

Marine Drugs, 2023
Magnetotactic bacteria (MTB), a diverse group of marine and freshwater microorganisms, have attracted the scientific community’s attention since their discovery.
Anderson de Souza Cabral, Mariana Verdan, Rogerio Presciliano, Felipe Silveira, Tarcisio Correa, Fernanda Abreu   +5 more
doaj   +1 more source