Results 41 to 50 of about 3,992 (192)

Improved methods for mass production of magnetosomes and applications: a review

Microbial Cell Factories, 2020
Magnetotactic bacteria have the unique ability to synthesize magnetosomes (nano-sized magnetite or greigite crystals arranged in chain-like structures) in a variety of shapes and sizes.
Abdul Basit, Jiaojiao Wang, Fangfang Guo, Wei Niu, Wei Jiang   +4 more
doaj   +1 more source

Comparing the Colloidal Stabilities of Commercial and Biogenic Iron Oxide Nanoparticles That Have Potential In Vitro/In Vivo Applications

Molecules, 2023
For the potential in vitro/in vivo applications of magnetic iron oxide nanoparticles, their stability in different physiological fluids has to be ensured.
Jonas Schwan, Simon Markert, Sabine Rosenfeldt, Dirk Schüler, Frank Mickoleit, Anna S. Schenk   +5 more
doaj   +1 more source

On the Energy Transfer Performance of Mechanical Nanoresonators Coupled with Electromagnetic Fields [PDF]

, 2012
We study the energy transfer performance in electrically and magnetically coupled mechanical nanoresonators. Using the resonant scattering theory, we show that magnetically coupled resonators can achieve the same energy transfer performance as for their ...
A Karalis, A Poon, AR Muxworthy, B Samanta, B Stipe, Bernardo Barbiellini, CL Degen, E Alphandéry, ED del Barco, EM Phizicky, Guevara Noubir, H Javaheri, Hooman Javaheri, J Jackson, JA Sidles, JL Kirschvink, JL Kirschvink, JM Blatt, K Jensen, M Winklhofer, MI Dykman, R Blakemore, R Hamam, R Hergt, RK Adair, V Sazonova, X Hu   +26 more
core   +2 more sources

Magnetic genes: Studying the genetics of biomineralization in magnetotactic bacteria. [PDF]

, 2020
Many species of bacteria can manufacture materials on a finer scale than those that are synthetically made. These products are often produced within intracellular compartments that bear many hallmarks of eukaryotic organelles.
KOMEILI, Arash, McCausland, Hayley
core  

Off-axis electron holography of bacterial cells and magnetic nanoparticles in liquid [PDF]

, 2017
The mapping of electrostatic potentials and magnetic fields in liquids usingelectron holography has been considered to be unrealistic. Here, we showthat hydrated cells ofMagnetospirillum magneticumstrain AMB-1 and assem-blies of magnetic nanoparticles ...
András Kovács, Ayache J, Bazylinski DA, Firlar E, Harscher A, Kasama T, Kawasaki T, Matsumoto T, Namiot VA, Pan A, Posfai M, Prozorov R, Rafal E. Dunin-Borkowski, Schueler D, Tanya Prozorov, Trevor P. Almeida, Woehl TJ, Woehl TJ, Yu W   +18 more
core   +3 more sources

Reducing Conditions Favor Magnetosome Production in Magnetospirillum magneticum AMB-1

Frontiers in Microbiology, 2019
Magnetotactic bacteria (MTB) are a heterogeneous group of Gram-negative prokaryotes, which all produce special magnetic organelles called magnetosomes.
Agata Olszewska-Widdrat, Gabriele Schiro, Victoria E. Reichel, Damien Faivre, Damien Faivre   +4 more
doaj   +1 more source

A Novel Isolate of Spherical Multicellular Magnetotactic Prokaryotes Has Two Magnetosome Gene Clusters and Synthesizes Both Magnetite and Greigite Crystals

Microorganisms, 2022
Multicellular magnetotactic prokaryotes (MMPs) are a unique group of magnetotactic bacteria that are composed of 10–100 individual cells and show coordinated swimming along magnetic field lines.
Kaixuan Cui, Hongmiao Pan, Jianwei Chen, Jia Liu, Yicong Zhao, Si Chen, Wenyan Zhang, Tian Xiao, Long-Fei Wu   +8 more
doaj   +1 more source

Magnetosome dynamics in magnetotactic bacteria

Biophysical Journal, 1984
Diffusive motions of the magnetosomes (enveloped Fe3O4 particles) in the magnetotactic bacterium Aquaspirillum magnetotacticum result in a very broad-line Mössbauer spectrum (T approximately 100 mm/s) above freezing temperatures. The line width increases with increasing temperature.
Ofer, S., Nowik, I., Bauminger, E. R., Papaefthymiou, G. C., Frankel, Richard B., Blakemore, Richad P.   +5 more
openaire   +3 more sources

Biogeochemical Niche of Magnetotactic Cocci Capable of Sequestering Large Polyphosphate Inclusions in the Anoxic Layer of the Lake Pavin Water Column

Frontiers in Microbiology, 2022
Magnetotactic bacteria (MTB) are microorganisms thriving mostly at oxic–anoxic boundaries of aquatic habitats. MTB are efficient in biomineralising or sequestering diverse elements intracellularly, which makes them potentially important actors in ...
Cécile C. Bidaud, Cécile C. Bidaud, Cécile C. Bidaud, Caroline L. Monteil, Nicolas Menguy, Vincent Busigny, Didier Jézéquel, Didier Jézéquel, Éric Viollier, Cynthia Travert, Fériel Skouri-Panet, Karim Benzerara, Christopher T. Lefevre, Élodie Duprat   +13 more
doaj   +1 more source

Magnetic Response of Magnetospirillum Gryphiswaldense [PDF]

, 2017
In this study we modelled and measured the U-turn trajectories of individual magnetotactic bacteria under the application of rotating magnetic fields, ranging in ampitude from 1 to 12 mT.
Abelmann, L., Hageman, T. A. G., Khalil, I. S. M., Manz, A., Pichel, M. P.   +4 more
core   +3 more sources