Results 11 to 20 of about 1,750 (188)

Origin of microbial biomineralization and magnetotaxis during the Archean [PDF]

Proceedings of the National Academy of Sciences, 2017
Microbes that synthesize minerals, a process known as microbial biomineralization, contributed substantially to the evolution of current planetary environments through numerous important geochemical processes.
Bazylinski, Dennis A, Kirschvink, Joseph L, Knight, Rob, Kopylova, Evguenia, Li, Ying, Lin, Wei, Pan, Yongxin, Paterson, Greig A, Wang, Yinzhao, Zhu, Qiyun, Zhu, Rixiang   +10 more
core   +9 more sources

Supramolecular Adaptive Nanomotors with Magnetotaxis Behavior [PDF]

Advanced Materials, 2016
With a convenient bottom-up approach, magnetic metallic nickel is grown in situ of a supramolecular nanomotor using the catalytic activities of preloaded platinum nanoparticles. After introducing magnetic segments, simultaneous guidance and steering of catalytically powered motors with additional magnetic fields are achieved.
Peng, F., Tu, Y., Men, Y., van Hest, J., Wilson, D.A., Wilson, D.A.   +5 more
openaire   +3 more sources

Genomic Expansion of Magnetotactic Bacteria Reveals an Early Common Origin of Magnetotaxis with Lineage-specific Evolution [PDF]

The ISME Journal, 2018
The origin and evolution of magnetoreception, which in diverse prokaryotes and protozoa is known as magnetotaxis and enables these microorganisms to detect Earth’s magnetic field for orientation and navigation, is not well understood in evolutionary ...
A Gurevich, A Stamatakis, A Stamatakis, ACV Araujo, Andrew P. Roberts, B Ji, C Esser, C Jogler, C Jogler, C Jogler, CT Lefèvre, CT Lefèvre, CT Lefèvre, CT Lefèvre, CT Lefèvre, D Darriba, DA Bazylinski, DD Kang, Dennis A. Bazylinski, DH Parks, EF DeLong, EK Field, F Abreu, F Abreu, Greig A. Paterson, H Fullerton, HH Lin, I Letunic, JB Rioux, JL Kirschvink, K Anantharaman, K Laufer, K Tamura, KT Konstantinidis, LC Benjamin, LM Rodriguez-R, M Winklhofer, MN Price, MP Ferla, N Segata, R Uebe, RB Frankel, RC Edgar, S Kolinko, S Kolinko, S Kolinko, S Nurk, S Schübbe, S Spring, S Spring, S Ullrich, SF Altschul, SL Simmons, T Sakaguchi, T Seemann, V Morillo, W Li, W Lin, W Lin, W Lin, W Lin, W Lin, W Lin, W Lin, Wei Lin, Wensi Zhang, Xiang Zhao, Yongxin Pan   +67 more
core   +4 more sources

Directed Navigation of Magnetotactic Bacteria via Magnetotaxis in a 3D Vasculature‐On‐A‐Chip

Advanced Materials Technologies, Volume 11, Issue 4, 19 February 2026.
A perfusable vascular network is developed to investigate MTB at the single‐microorganism level. MTB is demonstrated to successfully align and navigate along the magnetic field inside the microvessels. Abstract Magnetotactic bacteria (MTB), inherently motile and self‐powered, are promising biorobotic candidates for targeted anti‐cancer drug delivery ...
Brianna Bradley, Yuji Nashimoto, Aldo Gonzalez‐Lopez, Takeshi Hori, Hirokazu Kaji, Peter L. Davies, Carlos Escobedo   +6 more
wiley   +2 more sources

Chemo‐ and Magnetotaxis of Self‐Propelled Light‐Emitting Chemo‐electronic Swimmers [PDF]

Angewandte Chemie, 2020
AbstractMiniaturized autonomous chemo‐electronic swimmers, based on the coupling of spontaneous oxidation and reduction reactions at the two poles of light‐emitting diodes (LEDs), are presented as chemotactic and magnetotactic devices. In homogeneous aqueous media, random motion caused by a bubble‐induced propulsion mechanism is observed.
Salinas, Gerardo, Dauphin, Alice L., Colin, Camille, Villani, Elena, Arbault, Stéphane, Bouffier, Laurent, Kuhn, Alexander   +6 more
openaire   +4 more sources

A Compass To Boost Navigation: Cell Biology of Bacterial Magnetotaxis. [PDF]

J Bacteriol, 2020
Magnetotactic bacteria are aquatic or sediment-dwelling microorganisms able to take advantage of the Earth’s magnetic field for directed motility. The source of this amazing trait is magnetosomes, unique organelles used to synthesize single nanometer-sized crystals of magnetic iron minerals that are queued up to build an intracellular ...
Müller FD, Schüler D, Pfeiffer D.
europepmc   +5 more sources

Primordial magnetotaxis in putative giant paleoproterozoic magnetofossils

Proceedings of the National Academy of Sciences
Magnetotactic bacteria produce chains of nanoscopic iron minerals used for navigation, which can be preserved over geological timescales in the form of magnetofossils. Micrometer-sized magnetite crystals with unusual shapes suggesting a biologically controlled mineralization have been found in the geological record and termed giant magnetofossils.
Ualisson Donardelli Bellon, Wyn Williams, Ricardo Ivan Ferreira Trindade, Lara Maldanis, Douglas Galante   +4 more
openaire   +4 more sources

A Two‐Protein Chemoreceptor Complex Regulates Oxygen Thresholds in Bacterial Magneto‐Aerotaxis

Advanced Science
Bacteria in changing environments rely on motility and sensory mechanisms to locate optimal conditions. This process depends on specialized chemoreceptors to sense environmental stimuli.
Julian Herz, Carina Weigel, Leonie Scheder, Raz Zarivach, Itay Algov, Yonatan Chemla, Felix Popp, Cornelius Riese, Mohammad A. Charsooghi, Lital Alfonta, Michael M. Meijler, Dirk Schüler, Damien Faivre, Daniel Pfeiffer   +13 more
doaj   +2 more sources

Isolation and cultivation of a novel freshwater magnetotactic coccus FCR-1 containing unchained magnetosomes [PDF]

Communications Biology
Magnetotactic bacteria are ubiquitous aquatic prokaryotes that have the ability to biomineralize magnetite (Fe3O4) and/or greigite (Fe3S4) nanoparticles called magnetosomes. Magnetotactic cocci belonging to the class “Ca.
Hirokazu Shimoshige, Keiichi Yanagisawa, Masayuki Miyazaki, Yoshihiro Takaki, Shigeru Shimamura, Hidetaka Nomaki, Mizuki Fukui, Hiroki Shirakawa, Hideki Kobayashi, Azuma Taoka, Toru Maekawa   +10 more
doaj   +2 more sources

Origin of magnetotaxis: Vertical inheritance or horizontal transfer? [PDF]

Proceedings of the National Academy of Sciences, 2017
Lin et al. (1) claim that the origin of magnetotaxis dates back to the Archean using phylogenomic methods. Although we salute the interesting results, we have serious concerns about their fundamental conclusion and interpretation of the results.
Sishuo Wang, Youhua Chen
openaire   +3 more sources