scholarly journals Electromagnetic Duality Protected Scattering Properties of Nonmagnetic Particles

ACS Photonics ◽  
2020 ◽  
Vol 7 (7) ◽  
pp. 1830-1838 ◽  
Author(s):  
Qingdong Yang ◽  
Weijin Chen ◽  
Yuntian Chen ◽  
Wei Liu
Keyword(s):  
Nonmagnetic Particles

Numerical investigation of magnetic-field induced self-assembly of nonmagnetic particles in magnetic fluids

2020 ◽  
Vol 97 ◽  
pp. 103008 ◽  
Author(s):  
MuFeng Chen ◽  
XiaoDong Niu ◽  
Peng Yu ◽  
Qiaozhong Li ◽  
You Li ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Numerical Investigation ◽  
Self Assembly ◽  
Magnetic Fluids ◽  
Nonmagnetic Particles

Capture of nonmagnetic particles and living cells using a microelectromagnetic system

2008 ◽  
Vol 104 (9) ◽  
pp. 094509 ◽  
Author(s):  
Atsushi Aki ◽  
Osamu Ito ◽  
Hisao Morimoto ◽  
Yutaka Nagaoka ◽  
Yoshikata Nakajima ◽  
...  
Keyword(s):  
Living Cells ◽  
Nonmagnetic Particles

Transmitted and Reflected Visible Light Microscopy of Two Bituminous Fly Ashes

1984 ◽  
Vol 43 ◽  
Author(s):  
Donald L. Biggs ◽  
Joseph J. Bruns
Keyword(s):  
Fly Ash ◽  
Light Microscopy ◽  
Silicate Glass ◽  
Power Plants ◽  
Magnetic Fraction ◽  
Fly Ashes ◽  
Complete Replacement ◽  
Replacement Product ◽  
Nonmagnetic Particles ◽  
Ferrite Spinel

AbstractFly ashes of high magnetic content taken from two midwestern power plants were examined to determine the mineralogy of the magnetic and nonmagnetic fractions. Fly ash spheres from the magnetic fraction are predominantly composed of ferrite spinel, hematite and silicate glass. The hematite appears to be a replacement product of the original ferrite spinel. Nonmagnetic phases include mullite, lime, small amounts of hematite and silicate glass. Quartz morphology indicates that it did not fuse in the furnace. Mullite and lime have morphologies indicative of crystallization in the furnace. Hematite is bonded to the nonmagnetic particles or as a complete replacement of ferrite spinel spheres.

Magnetic manipulation on the unlabeled nonmagnetic particles

2019 ◽  
Vol 33 (07) ◽  
pp. 1950047 ◽  
Author(s):  
Yongqing He ◽  
Laan Luo ◽  
Shuang Huang
Keyword(s):  
Flow Rate ◽  
Magnetic Force ◽  
Opposite Polarity ◽  
Viscous Drag ◽  
Maximum Deviation ◽  
Magnetic Manipulation ◽  
Practical Applications ◽  
Viscous Drag Force ◽  
Flow Rate Range ◽  
Nonmagnetic Particles

This paper reports two basic microfluidic strategies for the magnetic manipulation of unlabeled nonmagnetic particles/cells. One is the deflection induced by a single magnet, and the other is the confusing effect produced by two magnets of opposite polarity. They can be combined into more completed particle manipulations like continuous flow separation, counting and detection, which are essential steps in biomedical applications. We experimentally studied the dynamics of 10.4 and 20 [Formula: see text]m nonmagnetic polystyrene particles within a flow rate range of 30, 50, 70 and 90 [Formula: see text]L/min in a straight channel. We defined the cross-section length that the particles occupy as the “particle bandwidth” to characterize the extent of deflection and focusing. To predict the trajectories of the particles, we established a simple theoretical model by considering the magnetic force and viscous drag force. Compared with the experimental results, the maximum deviation of the simulation is 9.28%. The influences of magnetic nanoparticle concentration, magnetic field parameters, size of microparticles and flow rate are systematically investigated. We also demonstrated that the effective deflection and focusing could be realized at low Fe3O4 nanoparticle concentrations, which means that this method can reduce the damage on cells in the practical applications.

Simultaneous Separation and Washing of Nonmagnetic Particles in an Inertial Ferrofluid/Water Coflow

2017 ◽  
Vol 89 (12) ◽  
pp. 6915-6920 ◽  
Author(s):  
Qi Chen ◽  
Di Li ◽  
Jianhan Lin ◽  
Maohua Wang ◽  
Xiangchun Xuan
Keyword(s):  
Simultaneous Separation ◽  
Nonmagnetic Particles

Domain Configurations About Nonmagnetic Particles in Iron

1961 ◽  
Vol 121 (4) ◽  
pp. 1038-1042 ◽  
Author(s):  
William D. Nix ◽  
Robert A. Huggins
Keyword(s):  
Nonmagnetic Particles

Simulation of Behavior of Micrometer-Size Particles in the Polishing Process of a Micro-Tube Filled with a Magnetic Fluid under Uniform Magnetic Field

2012 ◽  
Vol 721 ◽  
pp. 205-210 ◽  
Author(s):  
Yasushi Ido ◽  
Kazuya Arakawa ◽  
Keisuke Asakura ◽  
Hitoshi Nishida
Keyword(s):  
Magnetic Field ◽  
Magnetic Fluid ◽  
Uniform Magnetic Field ◽  
Magnetic Particles ◽  
Particle Method ◽  
Polishing Process ◽  
Stokesian Dynamics ◽  
Micrometer Size ◽  
Nonmagnetic Particles ◽  
Discrete Particle Method

Behavior of suspended magnetic and nonmagnetic micrometer-size particles in a micro-tube filled with a magnetic fluid is investigated by using the discrete particle method based on the simplified Stokesian dynamics in order to know the polishing process of inner wall of a tube. It is shown that the chain-like clusters of magnetic particles are surrounded by clusters of nonmagnetic particles in the presence of uniform magnetic field. The clusters are held in the field direction in case of rotation of the micro-tube and in case of rotation of magnetic field.

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