Results 61 to 70 of about 58,480 (309)

Correction to “Micromagnetic models of pseudo-single domain grains of magnetite near the Verwey Transition”

, 1999
Domain structures of small pseudo-single domain (PSD) magnetite near the Verwey transition (Tυ) at ≈120 K were modeled using an unconstrained three-dimensional micromagnetic algorithm.
A. R. Muxworthy, W. Williams, Muxworthy, A. R., Williams, Wyn; id_orcid   +3 more
core   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Assessment of nano-iron particles impact on the reproductive health of female Wistar rats

Beni-Suef University Journal of Basic and Applied Sciences, 2022
Background Iron oxide nanoparticles, especially nano-magnetite, are promising candidates for use in a variety of applications. The present study aimed to investigate the effect of nano-magnetite on the reproductive health of female Wistar rats.
Menna-Tullah Magdy, Abd EL-Wahab A EL-Ghareeb, Fawzy A Attaby, Heba A Abd El-Rahman   +3 more
doaj   +1 more source

Wet Ball Milling Synthesis of Iron Oxide Nanoparticles for High‐Efficiency, Controllable Magnetic Hyperthermia in Ovarian Cancer

Advanced Materials Technologies, EarlyView.
A wet ball‐milling method is presented to synthesize iron magnetic nanoparticles and evaluate their magnetic hyperthermia performance. Optimized particles (∼270 nm, Ms ∼114 emu/g) achieve ∼50°C heating under clinically safe alternating magnetic fields, while pulsed‐field operation enables controlled temperature regulation (∼30°C).
Shahriar Mostufa, Bahareh Rezaei, Md Shahriar, Karla Mercedes Paz González, Anil Kumar, Changxue Xu, Yun Suk Eo, Ioannis H. Karampelas, Jenifer Gómez‐Pastora, Rui He, Kai Wu   +10 more
wiley   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

Advanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source

Impact-generated magnetite in Chang’e-5 soil as a potential recorder of lunar magnetism

Communications Earth & Environment
Magnetite is a principal paleomagnetic recorder on Earth, but lunar magnetism is thought to be dominated by metallic iron and Fe-Ni alloys, with magnetite rare and typically sub-micrometer within troilite.
Jinhua Li, Chaoqun Zhang, Chen Li, Yi Chen, Qinghua Zhang, Qianqian Lan, Yuqin Wang, Weiwei Wu, Jian Wang, Zheng Gong, Xu Tang, Xuechao Sha, Lixin Gu, Shiqi Cheng, Peiyu Liu, Jiawei Liu, Qiuli Li, Lin Gu, Gang Li, Yang Li, Rafal E. Dunin-Borkowski, Andrew P. Roberts, Yongxin Pan   +22 more
doaj   +1 more source

Magnetic induction mapping of magnetite chains in magnetotactic bacteria at room temperature and close to the Verwey transition using electron holography

, 2005
Off-axis electron holography in the transmission electron microscope is used to record magnetic induction maps of closely spaced magnetite crystals in magnetotactic bacteria at room temperature and after cooling the sample using liquid nitrogen.
Harrison, R. J., Simpson, E. T., Kasama, T., Buseck, Peter R., Dunin-Borkowski, Rafael E., Pósfai, Mihály   +5 more
core   +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

Mechanism of the Verwey Transition in Magnetite [PDF]

Physical Review Letters, 2006
By combining {\it ab initio} results for the electronic structure and phonon spectrum with the group theory, we establish the origin of the Verwey transition in Fe$_3$O$_4$. Two primary order parameters with $X_3$ and $Δ_5$ symmetries are identified. They induce the phase transformation from the high-temperature cubic to the low-temperature monoclinic ...
Piekarz, P., Parlinski, K., Oleś, A.
openaire   +4 more sources

Crystal-chemical and biological controls of trace and minor element incorporation into magnetite nanocrystals

, 2021
Magnetite nanoparticles possess numerous fundamental, biomedical and industrial applications, many of which depend on tuning the magnetic properties. This is often achieved by the incorporation of trace and minor elements into the magnetite lattice. Such
Matthieu, Amor, Daniel M., Chevrier, Damien, Faivre   +2 more
core   +1 more source