Results 151 to 160 of about 824,704 (187)

Magnetic Particle Imaging in Neurosurgery

World Neurosurgery, 2019
Magnetic particle imaging (MPI) is a novel radiation-free tomographic imaging method that provides a background-free, signal attenuation-free, direct quantification of the spatial distribution of superparamagnetic iron-oxide nanoparticles (SPIONs) with high temporal resolution (milliseconds), high spatial resolution (
Antonio Meola, Jianghong Rao, Navjot Chaudhary, Guosheng Song, Xianchuang Zheng, Steven D. Chang   +5 more
openaire   +2 more sources

Isolation of technogenic magnetic particles

Science of The Total Environment, 2014
Technogenic magnetic particles (TMPs) emitted by various industrial sources, such as smelting plants, end up after atmospheric transfer on the soil surface. In the present study, we characterised the origin and composition of such particles emitted by a large iron smelting plant and deposited on particular substrates, namely tombstones, which act as a ...
Catinon, Mickaël, Ayrault, Sophie, Boudouma, Omar, Bordier, Louise, Agnello, Gregory, Raynaud, Stéphane, Tissut, Michel   +6 more
openaire   +4 more sources

Aging in a Magnetic Particle System

Physical Review Letters, 1995
The influence of dipolar interaction in a frozen ferrofluid has been experimentally studied. The ferrofluid consisted of particles of $\ensuremath{\gamma}$- ${\mathrm{Fe}}_{2}$${\mathrm{O}}_{3}$ with mean diameter 70 \AA{}. Four samples with volume concentration of magnetic particles ranging from 0.03% to 17% have been investigated.
, Jonsson, , Mattsson, , Djurberg, , Khan, , Nordblad, , Svedlindh   +5 more
openaire   +2 more sources

Magnetization and coercivity of antiferromagnetic particles

IEEE Transactions on Magnetics, 1998
The magnetic behavior of antiferromagnetic particles, with sc and bcc lattice structures, has been studied using the Monte Carlo simulation technique. The magnetization of the particles is a surface effect. At very low temperatures the surface exchange field gives a high coercivity. At high temperatures, the coercivity scales with the proportion of the
K.N. Trohidou, X. Zianni, J.A. Blackman
openaire   +1 more source

Characterizing the performance of commercial magnetic particles for magnetic particle imaging

2022
International Journal on Magnetic Particle Imaging, Vol 8 No 1 Suppl 1 (2022)
Yeo, Kim Hwang, Rodrigo, Irati, Kuo, Renesmee, Chandrasekharan, Prashant, Fellows, Benjamin, Conolly, Steven   +5 more
openaire   +1 more source

Parallel magnetic particle imaging

Review of Scientific Instruments, 2020
Magnetic Particle Imaging (MPI) is a promising tomographic method to visualize the distribution of superparamagnetic materials in three-dimensions. For encoding, a strong gradient represented by a field free point (FFP) or a field free line (FFL) is steered rapidly through the field of view (FOV), acquiring the signal successively.
Patrick Vogel, Thomas Kampf, Stefan Herz, Martin A. Rückert, Thorsten A. Bley, Volker C. Behr   +5 more
openaire   +2 more sources

Antibody immobilization on magnetic particles

Journal of Molecular Recognition, 2008
AbstractMagnetic particles (MNPs) offer attractive possibilities in biotechnology. MNPs can get close to a target biological entity, as their controllable sizes range from a few nanometres up to tens of nanometres, and their surface can be modified to add affinity and specificity towards desired molecules.
A C A, Roque, S, Bispo, A R N, Pinheiro, J M A, Antunes, D, Gonçalves, H A, Ferreira   +5 more
openaire   +2 more sources

Analysis of Magnetic Particle Agglomeration Structure and Interaction Forces Between Magnetic Particles

Journal of Magnetics, 2020
Chain-like and diamond-shaped magnetic particle agglomeration (MPA) commonly forming in a weak magnetic field are simulated based on the finite element method (FEM), and the effects of particle diameter, magnetic field strength, particle relative magnetic permeability, and particle number in magnetic particle chains (MPCs) and diamond-shaped MPA on the
Long, Jia, Miao, Zixu, Chen, Huihuang, Deng, Rongdong, Zuo, Weiran, Guo, Bao, Ku, Jiangang   +6 more
openaire   +3 more sources

Measurement of magnetic particle for quantitative evaluation in magnetic particle testing

International Journal of Applied Electromagnetics and Mechanics, 2016
As magnetic particle testing (MT) detects microcracks using a simplified method, it is used for non-destructive inspection of ferromagnetic materials in various industrial fields. However, MT can provide only a rough distribution shape of a crack; a quantitative technique for evaluating the crack shape has not been established in conventional MT.
Fukuoka, Katsuhiro, Horiike, Sho
openaire   +1 more source

Magnetic Particle Imaging (MPI)

RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren, 2011
Magnetic particle imaging (MPI) displays the spatial distribution and concentration of superparamagnetic iron oxides (SPIOs). It is a quantitative, tomographic imaging method with high temporal and spatial resolution and allows work with high sensitivity yet without ionizing radiation. Thus, it may be a very promising tool for medical imaging.
J, Haegele, T, Sattel, M, Erbe, K, Luedtke-Buzug, M, Taupitz, J, Borgert, T M, Buzug, J, Barkhausen, F M, Vogt   +8 more
openaire   +2 more sources