Results 41 to 50 of about 6,841 (202)

Survey of Magneto-tactic Properties of Escherichia coli Under Static Magnetic Fields [PDF]

Avicenna Journal of Environmental Health Engineering, 2020
Some of the microorganisms such as Escherichia coli have the ability to migrate to areas in which the intensity of magnetic fields (MFs) is higher, which is called magnetotactic properties.
Ghorban Asgari, Ramin Khoshniyat, Mojtaba Moradi Golrokhi   +2 more
doaj   +1 more source

The magnetosome model: insights into the mechanisms of bacterial biomineralization. [PDF]

, 2013
Though the most ready example of biomineralization is the calcium phosphate of vertebrate bones and teeth, many bacteria are capable of creating biominerals inside their cells.
Komeili, Arash, Rahn-Lee, Lilah
core   +1 more source

Magnetotactic bacterial cages as safe and smart gene delivery vehicles

OpenNano, 2016
In spite of the huge advances in the area of synthetic carriers, their efficiency still poorly compares to natural vectors. Herein, we report the use of unmodified magnetotactic bacteria as a guidable delivery vehicle for DNA functionalized gold ...
Shahad K. Alsaiari, Alaa H. Ezzedine, Abdallah M. Abdallah, Rachid Sougrat, Niveen M. Khashab   +4 more
doaj   +1 more source

Destabilization of a flow focused suspension of magnetotactic bacteria

, 2016
Active matter is a new class of material, intrinsically out-of equilibrium with intriguing properties. So far, the recent upsurge of studies has mostly focused on the spontaneous behavior of these systems --in the absence of external constraints or ...
Bocquet, Lyderic, Cottin-Bizonne, Cecile, Lefevre, Christopher, Waisbord, Nicolas, Ybert, Christophe   +4 more
core   +2 more sources

Magnetic irreversibility and Verwey transition in nano-crystalline bacterial magnetite [PDF]

, 2007
The magnetic properties of biologically-produced magnetite nanocrystals biomineralized by four different magnetotactic bacteria were compared to those of synthetic magnetite nanocrystals and large, high quality single crystals.
A. Aharoni, Balaji Narasimhan, D. A. Bazylinski, Dennis A. Bazylinski, E. A. Wolin, E. J. Verwey, G. Markovich, R. P. Blakemore, Ruslan Prozorov, Surya K. Mallapragada, T. Matsunaga, Tanya Prozorov, Timothy J. Williams   +12 more
core   +4 more sources

Discovery Prospects for a Supernova Signature of Biogenic Origin

, 2011
Approximately 2.8 Myr before the present our planet was subjected to the debris of a supernova explosion. The terrestrial proxy for this event was the discovery of live atoms of 60Fe in a deep-sea ferromanganese crust.
Basu, Bazylinski, Bosch, de Baar, Egli, Egli, Egli, Faivre, Fields, Fitoussi, Jickells, Knie, Knie, Knie, Knie, Kopp, Limongi, Limongi, Moskowitz, Nomoto, R. Egli, Rauscher, Roden, Rugel, S. Bishop, Wang, Woosley, Zachara   +27 more
core   +1 more source

Magnetotactic bacteria for cancer therapy [PDF]

Journal of Applied Physics, 2020
Magnetotactic bacteria (MTB) are aquatic microorganisms that are able to biomineralize membrane-enclosed magnetic nanoparticles called magnetosomes. Inside the MTB, magnetosomes are arranged in a chain that allows MTB to align and navigate along the Earth's magnetic field.
M. L. Fdez-Gubieda, J. Alonso, A. García-Prieto, A. García-Arribas, L. Fernández Barquín, A. Muela   +5 more
openaire   +3 more sources

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +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