Multistage Magnetic Particle Separator II. Classification of Ferromagnetic Particles

Cooper, Ryan P.; Doyle, James R.; Dunn, Darrell S.; Vellinger, John C.; Todd, Paul

doi:10.1081/ss-200028762

Cited by 9 publications

(2 citation statements)

References 14 publications

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“…Based on the Faraday approach [5,6,[12][13][14][15], i.e. on the direct measurement of the ponderomotive (magnetic) force F, acting on a sample of small volume V, placed in a certain "point" of an inhomogeneous (gradH ≠ 0) magnetic field with an intensity H (averaged over the sample volume), the method makes it possible to calculate using the well-known expression [16][17][18][19][20][21][22][23][24][25][26] in the following form:…”

Section: The Original Concept Of An Approach To Determining the Magne...mentioning

confidence: 99%

Magnetic Susceptibility of Powders and Magnetic Particles (Modified Inclusions of Iron Oxides) Carbon Sorbents

Sandulyak

Polismakova

Sandulyak

et al. 2022

AMM

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There is a lack of information on the magnetic properties of particles of such materials as powder magnetic (modified by inclusions of magnetite and maghemite) carbon sorbents intended for water purification from various kinds of impurities and, what is especially important, allowing to perform the prompt isolation of the spent sorbent – by magnetic separation. The data on the magnetic susceptibility χ of the particles of these sorbents, found by the developed experimental calculation method based on the concept of the corresponding magnetometry of a moderately rarefied dispersed sample with a dispersed phase of the particles under study, are presented. Experimental dependences of the magnetic susceptibility of <χ>of a dispersed sample on the volume fraction γ of controlled particles in it have been obtained - for different values of the magnetic field strength H in the range from 22 to 61 kA/m, i.e. in the postextremal region for the susceptibility. In addition to the necessary assessment of their linear, located at γ ≤ 0.15-0.2, sections, this also made it possible to find and phenomenologically describe the field dependences of the generalized data of the reduced susceptibility of <χ>/γ, i.e. data χ: in the form of an inverse power function with a power of 0.7 ... 0.8 at H.

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Section: The Original Concept Of An Approach To Determining the Magne...mentioning

confidence: 99%

Magnetic Susceptibility of Powders and Magnetic Particles (Modified Inclusions of Iron Oxides) Carbon Sorbents

Sandulyak

Polismakova

Sandulyak

et al. 2022

AMM

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“…Carbon nanotubes (CNTs) have gained full attention so far in life science applications [ 1 , 2 , 3 , 4 , 5 , 6 ]. These applications include separation [ 1 , 2 , 3 , 7 ], drug delivery [ 8 , 9 , 10 , 11 , 12 ], and hyperthermia by guiding with magnetic nanoparticles [ 13 , 14 , 15 , 16 ]. Because of the small size of CNTs, they can penetrate the cells non-invasively.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Dynamics Targeting CNT-Based Drug Delivery through Lung Cancer Cells: Design, Simulation, and Computational Approach

et al. 2020

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Nowadays, carbon nano (CN) structures and specifically carbon nanotubes (CNTs), because of the nanotube’s nanoscale shape, are widely used in carrier and separation applications. The conjugation of CNTs with polysaccharide, proteins, drugs, and magnetic nanoparticles provides a chance for smart targeting and trajectory manipulation, which are used in the crucial field of life science applications, including for cancer disease diagnostics and treatments. Providing an optimal procedure for delivering a drug to a specific area based on mathematical criteria is key in systemic delivery design. Trajectory guidance and applied force control are the main parameters affected by systemic delivery. Moreover, a better understanding of the tissue parameters and cell membrane molecular behaviour are other factors that can be indirectly affected by the targeted delivery. Both sides are an essential part of successful targeting. The lung is one of the challenging organs for drug delivery inside the human body. It has a large surface area with a thin epithelium layer. A few severe diseases directly involve human lung cells, and optimal and successful drug delivery to the lung for the treatment procedure is vital. In this paper, we studied functionalized CNTs’ targeted delivery via crossing through the lung cell membrane. Molecular dynamics (MD) software simulated all the interaction forces. Mathematical modelling of the cell membrane and proposed delivery system based on the relation of velocity and force has been considered. Dynamics equations for CNTs were defined in the time and frequency domain using control theory methods. The proposed delivery system consists of two main parts: crossing through the cell membrane and targeting inside the cell. For both steps, a mathematical model and a proper magnetic field profile have been proposed. The designed system provides criteria for crossing through the cell membrane within 30 s to 5 min and a translocation profile of 1 to 100 Å.

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Actual Role of the Magnetic Susceptibility of Particles in Magnetophoresis (Magnetic Separation)

Sandulyak¹,

Polismakova²,

Snedkov³

et al. 2020

Glass Ceram

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Multistage Magnetic Particle Separator II. Classification of Ferromagnetic Particles

Cited by 9 publications

References 14 publications

Magnetic Susceptibility of Powders and Magnetic Particles (Modified Inclusions of Iron Oxides) Carbon Sorbents

Magnetic Susceptibility of Powders and Magnetic Particles (Modified Inclusions of Iron Oxides) Carbon Sorbents

Analysis of Dynamics Targeting CNT-Based Drug Delivery through Lung Cancer Cells: Design, Simulation, and Computational Approach

Actual Role of the Magnetic Susceptibility of Particles in Magnetophoresis (Magnetic Separation)

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