Results 81 to 90 of about 6,841 (202)

Kinetic model of carbonate dissolution in Martian meteorite ALH84001 [PDF]

, 2003
The magnetites and sulfides located in the rims of carbonate globules in the Martian meteorite ALH84001 have been claimed as evidence of past life on Mars.
Humayun, Munir, Kopp, Robert E.
core   +1 more source

Unraveling the Enrichment Mechanisms of Rare Earth Elements in Deep‐Sea Sediments: An Environmental Magnetic Perspective

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Deep‐sea rare earth elements and yttrium (REY)‐rich sediments have attracted considerable attention since their discovery in 2011. However, the environmental factors controlling REY enrichment remain poorly understood, largely because paleoceanographic proxies are absent in pelagic clays.
Xiangfeng He, Jianxing Liu, Dongjie Bi, Yamin Zhang, Mu Huang, Miao Yu, Fengdeng Shi, Jianhua Gao, Xuefa Shi   +8 more
wiley   +1 more source

Isolation and Characterization of Magnetotactic Bacteria Collected from Northern India: A Preliminary Study

Journal of Pure and Applied Microbiology, 2018
The aim of the present study was to isolate, cultivate and characterize Magnetotactic Bacteria detected in Microcosms collected from north India, and to compare the Genomic DNA of isolated DNA with the ‘Magnetospirillium gryphiswaldense MSR-1’ for the ...
Renu Singh, Tanzeel Ahmed, Neelam Bamola, Rajvardhan Singh   +3 more
doaj   +1 more source

A Genetic Strategy for Probing the Functional Diversity of Magnetosome Formation [PDF]

, 2015
Model genetic systems are invaluable, but limit us to understanding only a few organisms in detail, missing the variations in biological processes that are performed by related organisms.
Byrne, Meghan E., Glenn, David R., Komeili, Arash, Le Sage, David, Milbourne, Timothy, Rahn-Lee, Lilah, Vali, Hojatollah, Walsworth, Ronald L., Zhang, Manjing   +8 more
core   +4 more sources

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun, Bingbing Sun, Alexander B. Cook, Tania Patiño Padial, Jan C. M. van Hest   +4 more
wiley   +1 more source

Greigite magnetosome membrane ultrastructure in ‘Candidatus Magnetoglobus multicellularis’ [PDF]

, 2008
The ultrastructure of the greigite magnetosome membrane in the multicellular magnetotactic bacteria ‘Candidatus Magnetoglobus multicellularis’ was studied. Each cell contains 80 membrane-enclosed iron-sulfide magnetosomes.
Carolina N. Keim, Fernanda Abreu, Karen T. Silva, Marcos Farina, Ulysses Lins   +4 more
core   +9 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   +1 more source

Rock magnetic and geochemical evidence for authigenic magnetite formation via iron reduction in coal-bearing sediments offshore Shimokita Peninsula, Japan (IODP Site C0020) [PDF]

, 2017
Sediments recovered at Integrated Ocean Drilling Program (IODP) Site C0020, in a fore‐arc basin offshore Shimokita Peninsula, Japan, include numerous coal beds (0.3–7 m thick) that are associated with a transition from a terrestrial to marine ...
Clyde, William C., Johnson, Joel E., Maxbauer, Daniel P., Phillips, Stephen C., Riedinger, Natascha, Setera, Jacob B., Severmann, Silke   +6 more
core   +1 more source

Magnetotactic Bacteria from Freshwater

Zeitschrift für Naturforschung C, 1987
Abstract Four species of magnetotactic bacteria have been detected in alkaline waters with pH 7.4-8.7. They were of coccoid to rod-like shape. Each of the species showed different patterns of movement. Two various types of magnetosomes, a chain-like arrangement and a scattered distributional pattern and a lateral polytrich flagellated ...
Matthias Oberhack, Roland Süssmuth, Hermann Frank   +2 more
openaire   +1 more source

Antibacterial Micro/Nanorobots: Innovations, Challenges, and Future Perspectives in Combatting Infection

Nano Select, Volume 7, Issue 2, February 2026.
Antibacterial micro/nanorobots (MNRs) represent a breakthrough in antibacterial therapy, making precise delivery of drugs to the infection site. This review systematically summarizes the material composition, actuation, and applications of MNRs in combating biofilms and drug‐resistant infections while emphasizing the existing challenges of ...
Yichao Chen, Chenlin Jiang, Chuxie Zhang, Wenqing He, Changshun Hou   +4 more
wiley   +1 more source