Results 21 to 30 of about 580 (114)
MamX encoded by the mamXY operon is involved in control of magnetosome maturation in Magnetospirillum gryphiswaldense MSR-1. [PDF]
BMC Microbiol, 2013 Abstract Background Magnetotactic bacteria produce membrane-enveloped magnetite crystals (magnetosomes) whose formation is controlled primarily by a gene island termed the magnetosome island (MAI). Characterization of single gene and operon function in MAI has elucidated in part the genetic basis of magnetosome ...
Yang J +6 more
europepmc +4 more sources
Intracellular transformation and disposal mechanisms of magnetosomes in macrophages and cancer cells
Biotechnology Journal, Volume 18, Issue 10, October 2023., 2023 Graphical Abstract and Lay Summary Magnetosomes are magnetite nanoparticles biosynthesized by magnetotactic bacteria. They have been proposed for several biomedical applications mostly focused on the treatment and diagnosis of cancer. In this work we follow the intracellular long‐term fate of magnetosomes in cancer cells and macrophages.
Lucía Gandarias +8 more
wiley +1 more source
Small Structures, Volume 4, Issue 9, September 2023., 2023 Microbial biotemplates are considerably superior and cost‐effective to fabricate complex and heterogeneous micro/nanostructures. Herein, the recent advances in micro/nanofabrication based on microorganisms, including mono micro‐/nanoparticles fabrication, their ordered assembly/alignment, actuation performance, and typical engineering application ...
De Gong +5 more
wiley +1 more source
Small Science, Volume 2, Issue 3, March 2022., 2022 Scanning X‐ray fluorescence microscopy (SXFM) and nanoscale X‐ray absorption near‐edge structure (XANES) mapping distinguish fully formed magnetite nanoparticles from intracellular iron storage. The differentiation of iron species accomplished by hard X‐ray microscopy offers a new approach to understand magnetite biomineralization in magnetotactic ...
Daniel M. Chevrier +6 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 127, Issue 1, January 2022., 2022 Abstract Magnetotactic bacteria (MTB) produce single‐stranded or multi‐stranded chains of magnetic nanoparticles that contribute to the magnetization of sediments and rocks. Their magnetic fingerprint can be detected in ancient geological samples and serve as a unique biosignature of microbial life.
Matthieu Amor +7 more
wiley +1 more source
Magnetosomes: A Tool for Targeted Drug Delivery in the Management of Cancer
Journal of Nanomaterials, Volume 2022, Issue 1, 2022., 2022 The last two decades of developments in drug formulations and novel drug delivery systems have been seen as the beginning of a new era leading to increased patient adherence and pharmacological response to the therapeutic regimen. One of the most difficult tasks is efficiency and target‐specific drug delivery or the extent of delivery at any given site
Ritika Puri +5 more
wiley +1 more source
Azide click chemistry on magnetotactic bacteria: A versatile technique to attach a cargo
Materials Today Bio, 2023 Adding biomolecules to living organisms and cells is the basis for creating living materials or biohybrids for robotic systems. Bioorthogonal chemistry allows covalently modifying biomolecules with functional groups not natively present under biological ...
Paul Eduardo David Soto Rodriguez +3 more
doaj +1 more source
Engineering Magnetic Micro/Nanorobots for Versatile Biomedical Applications
Advanced Intelligent Systems, Volume 3, Issue 7, July 2021., 2021 Recent advancements of engineering magnetic micro/nanorobots in biomedicine are summarized. The synthesis methods, magnetic actuation systems, locomotion modes, and various monitoring modalities are introduced. The biomedical application progress of magnetic micro/nanorobots is highlighted, and the challenges being faced are discussed.
Longchen Wang +3 more
wiley +1 more source
FeoB2 Functions in Magnetosome Formation and Oxidative Stress Protection in Magnetospirillum gryphiswaldense Strain MSR-1 [PDF]
Journal of Bacteriology, 2012 ABSTRACT Magnetotactic bacteria (MTB) synthesize unique organelles, the magnetosomes, which are intracellular nanometer-sized, membrane-enveloped magnetite. The biomineralization of magnetosomes involves the uptake of large amounts of iron. However, the iron metabolism of MTB is not well understood.
Chengbo, Rong +7 more
openaire +2 more sources
mBio, 2019 The biomineralization pathway of magnetite in magnetotactic bacteria is still poorly understood and a matter of intense debates. In particular, the existence, nature, and location of possible mineral precursors of magnetite are not clear.
René Uebe +7 more
doaj +1 more source