Results 71 to 80 of about 1,426 (154)

Magnetotactic Coccus Strain SHHC-1 Affiliated to Alphaproteobacteria Forms Octahedral Magnetite Magnetosomes

Frontiers in Microbiology, 2017
Magnetotactic bacteria (MTB) are morphologically and phylogenetically diverse prokaryotes. They can form intracellular chain-assembled magnetite (Fe3O4) or greigite (Fe3S4) nanocrystals each enveloped by a lipid bilayer membrane called a magnetosome ...
Heng Zhang, Heng Zhang, Heng Zhang, Heng Zhang, Nicolas Menguy, Nicolas Menguy, Fuxian Wang, Fuxian Wang, Fuxian Wang, Karim Benzerara, Eric Leroy, Peiyu Liu, Peiyu Liu, Peiyu Liu, Wenqi Liu, Wenqi Liu, Wenqi Liu, Chunli Wang, Yongxin Pan, Yongxin Pan, Zhibao Chen, Jinhua Li, Jinhua Li, Jinhua Li   +23 more
doaj   +1 more source

Harnessing the Biological Responses Induced by Nanomaterials for Enhanced Cancer Therapy

Aggregate, Volume 6, Issue 9, September 2025.
Nanomaterial (NM)‐induced toxicity can be strategically repurposed for cancer therapy. This review summarizes the mechanism by which NMs selectively activate specific cellular processes to regulate cell fate independently. We also discussed how NMs‐induced biological responses can be leveraged as therapeutic strategies for cancer treatment.
Liting Wang, Hao Fu, Jiangtao Lin, Meng Zhao, Chuanrong Chen, Hongze Liao, Yourong Duan   +6 more
wiley   +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

Crystal structure of the magnetobacterial protein MtxA C-terminal domain reveals a new sequence-structure relationship

Frontiers in Molecular Biosciences, 2015
Magnetotactic bacteria (MTB) are a diverse group of aquatic bacteria that have the magnetotaxis ability to align themselves along the geomagnetic field lines and to navigate to a microoxic zone at the bottom of chemically stratified natural water.
Geula eDavidov, Frank Dietrich Müller, Jens eBaumgartner, Ronit eBitton, Damien eFaivre, Dirk eSchüler, Raz eZarivach   +6 more
doaj   +1 more source

Biodegraded magnetosomes with reduced size and heating power maintain a persistent activity against intracranial U87-Luc mouse GBM tumors

Journal of Nanobiotechnology, 2019
Background An important but rarely addressed question in nano-therapy is to know whether bio-degraded nanoparticles with reduced sizes and weakened heating power are able to maintain sufficient anti-tumor activity to fully eradicate a tumor, hence ...
Edouard Alphandéry, Ahmed Idbaih, Clovis Adam, Jean-Yves Delattre, Charlotte Schmitt, Florence Gazeau, François Guyot, Imène Chebbi   +7 more
doaj   +1 more source

Novel Protein Mg2046 Regulates Magnetosome Synthesis in Magnetospirillum gryphiswaldense MSR-1 by Modulating a Proper Redox Status

Frontiers in Microbiology, 2019
Magnetotactic bacteria (MTB) are a large, polyphyletic group of aquatic microorganisms capable of absorbing large amounts of iron and synthesizing intercellular nano-scaled nanoparticles termed magnetosomes.
Xu Wang, Xu Wang, Haolan Zheng, Qing Wang, Wei Jiang, Ying Wen, Jiesheng Tian, Jianbo Sun, Ying Li, Jilun Li   +9 more
doaj   +1 more source

Dynamic magnetic properties of magnetosomes

Smart Materials and Structures, 2023
Abstract Magnetosomes are found in magnetotactic bacteria, and consist of linear chains of tens of single-domain magnetic nanoparticles of F e
openaire   +2 more sources

How magnetotactic bacteria make magnetosomes queue up

Trends in Microbiology, 2006
Magnetotactic bacteria contain chains of magnetosomes that comprise a permanent magnetic dipole in each cell. In two separate, recent papers, Scheffel et al. and Komeili et al. describe the roles of the proteins MamJ and MamK in magnetosome chain formation.
Frankel, Richard B., Bazylinski, Dennis A.   +1 more
openaire   +4 more sources

Structure and evolution of the magnetochrome domains: no longer alone

Frontiers in Microbiology, 2014
Magnetotactic bacteria (MTB) can swim along Earth’s magnetic field lines, thanks to the alignment of dedicated cytoplasmic organelles. These organelles, termed magnetosomes, are proteolipidic vesicles filled by a 35-120 nm crystal of either magnetite or ...
Pascal eArnoux, Pascal eArnoux, Pascal eArnoux, Marina I Siponen, Marina I Siponen, Marina I Siponen, Christopher T Lefèvre, Christopher T Lefèvre, Christopher T Lefèvre, Nicolas eGinet, Nicolas eGinet, Nicolas eGinet, David ePignol, David ePignol, David ePignol   +14 more
doaj   +1 more source

Optimized method for preparation of IgG-binding bacterial magnetic nanoparticles.

PLoS ONE, 2014
In this study, the optimized method for designing IgG-binding magnetosomes based on integration of IgG-binding fusion proteins into magnetosome membrane in vitro is presented. Fusion proteins Mbb and Mistbb consisting of magnetosome membrane protein MamC
Denis S Grouzdev, Marina V Dziuba, Denis V Kurek, Alexander I Ovchinnikov, Nadezhda A Zhigalova, Boris B Kuznetsov, Konstantin G Skryabin   +6 more
doaj   +1 more source