Diversity of Magnetic Crystals Found in Magnetotactic Bacteria

1991 ◽  
pp. 117-126 ◽  
Author(s):  
Darci Motta S. Esquivel ◽  
Henrique G. P. Lins de Barros ◽  
Marcos Farina
Keyword(s):  
Magnetotactic Bacteria

Thermal fluctuations of non-motile magnetotactic bacteria in AC magnetic fields

2008 ◽  
Vol 44 (3) ◽  
pp. 223-236 ◽  
Author(s):  
K. Ērglis ◽  
L. Alberte ◽  
A. Cēbers
Keyword(s):  
Magnetic Fields ◽  
Magnetotactic Bacteria ◽  
Thermal Fluctuations

scholarly journals Genomic evidence of the illumination response mechanism and evolutionary history of magnetotactic bacteria within the Rhodospirillaceae family

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Yinzhao Wang ◽  
Giorgio Casaburi ◽  
Wei Lin ◽  
Ying Li ◽  
Fengping Wang ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Magnetotactic Bacteria ◽  
Response Mechanism ◽  
History Of

scholarly journals Mass collection of magnetotactic bacteria from the permanently stratified ferruginous Lake Pavin, France

2021 ◽  
Author(s):  
Vincent Busigny ◽  
François P. Mathon ◽  
Didier Jézéquel ◽  
Cécile C. Bidaud ◽  
Eric Viollier ◽  
...  
Keyword(s):  
Magnetotactic Bacteria ◽  
Lake Pavin ◽  
Mass Collection

scholarly journals Induction of Axonal Outgrowth in Mouse Hippocampal Neurons via Bacterial Magnetosomes

2021 ◽  
Vol 22 (8) ◽  
pp. 4126
Author(s):  
Sara De Vincentiis ◽  
Alessandro Falconieri ◽  
Frank Mickoleit ◽  
Valentina Cappello ◽  
Dirk Schüler ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Hippocampal Neurons ◽  
Magnetotactic Bacteria ◽  
Oxide Nanoparticles ◽  
Axonal Outgrowth ◽  
Mechanical Forces ◽  
Internalization Process ◽  
Oxide Crystals ◽  
Stimulation Of

Magnetosomes are membrane-enclosed iron oxide crystals biosynthesized by magnetotactic bacteria. As the biomineralization of bacterial magnetosomes can be genetically controlled, they have become promising nanomaterials for bionanotechnological applications. In the present paper, we explore a novel application of magnetosomes as nanotool for manipulating axonal outgrowth via stretch-growth (SG). SG refers to the process of stimulation of axonal outgrowth through the application of mechanical forces. Thanks to their superior magnetic properties, magnetosomes have been used to magnetize mouse hippocampal neurons in order to stretch axons under the application of magnetic fields. We found that magnetosomes are avidly internalized by cells. They adhere to the cell membrane, are quickly internalized, and slowly degrade after a few days from the internalization process. Our data show that bacterial magnetosomes are more efficient than synthetic iron oxide nanoparticles in stimulating axonal outgrowth via SG.

Control of the morphology and size of magnetite particles with peptides mimicking the Mms6 protein from magnetotactic bacteria

2010 ◽  
Vol 343 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Atsushi Arakaki ◽  
Fukashi Masuda ◽  
Yosuke Amemiya ◽  
Tsuyoshi Tanaka ◽  
Tadashi Matsunaga
Keyword(s):  
Magnetotactic Bacteria ◽  
Magnetite Particles

scholarly journals High Diversity of Magnetotactic Deltaproteobacteria in a Freshwater Niche

2013 ◽  
Vol 79 (8) ◽  
pp. 2813-2817 ◽  
Author(s):  
Yinzhao Wang ◽  
Wei Lin ◽  
Jinhua Li ◽  
Yongxin Pan
Keyword(s):  
Magnetotactic Bacteria ◽  
Natural Environments ◽  
Content Type ◽  
Operational Taxonomic Units ◽  
Geological Processes ◽  
Freshwater Site ◽  
High Diversity

ABSTRACTKnowledge of the diversity of magnetotactic bacteria in natural environments is crucial for understanding their contribution to various biological and geological processes. Here we report a high diversity of magnetotactic bacteria in a freshwater site. Ten out of 18 operational taxonomic units (OTUs) were affiliated with theDeltaproteobacteria. Some rod-shaped bacteria simultaneously synthesized greigite and magnetite magnetosomes.

scholarly journals Multifunktionale bakterielle Nanomagnete für Biotechnologie und Medizin

BIOspektrum ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 442-444
Author(s):  
Frank Mickoleit ◽  
Sabine Rosenfeldt ◽  
Anna S. Schenk ◽  
Dirk Schüler ◽  
René Uebe
Keyword(s):  
Particle Production ◽  
Magnetotactic Bacteria ◽  
Magnetic Core ◽  
High Yield ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Magnetospirillum Gryphiswaldense ◽  
Core Shell Nanoparticles ◽  
Genetic Toolkit ◽  
The Way

AbstractBacterial magnetosomes represent magnetic core-shell nanoparticles biomineralized by magnetotactic bacteria like Magnetospirillum gryphiswaldense. The establishment of fermentation regimes for high-yield particle production, standardized isolation procedures as well as the development of a genetic toolkit for the generation of “tailored” particles might soon pave the way for the application of engineered magnetosomes in the biomedical and biotechnological field.

scholarly journals Manganese in biogenic magnetite crystals from magnetotactic bacteria

2009 ◽  
Vol 292 (2) ◽  
pp. 250-253 ◽  
Author(s):  
Carolina N. Keim ◽  
Ulysses Lins ◽  
Marcos Farina
Keyword(s):  
Magnetotactic Bacteria ◽  
Biogenic Magnetite

Seasonal Variability of Magnetotactic Bacteria in a Freshwater Pond

2018 ◽  
Vol 45 (5) ◽  
pp. 2294-2302 ◽  
Author(s):  
Kuang He ◽  
Sophie C. Roud ◽  
Stuart A. Gilder ◽  
Ramon Egli ◽  
Christoph Mayr ◽  
...  
Keyword(s):  
Seasonal Variability ◽  
Magnetotactic Bacteria ◽  
Freshwater Pond
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