Principle and Analysis of a Two-Dimensional Onchip Magnetophoresis of Bioparticles for Contamination-Free Biochemical Reactors

Chetouani, Hichem; Jeandey, C.; Haguet, Vincent; Rostaing, H.; Dieppedale, C.; Jacquot, Jean-Luc; Kerlin, T.; Reyne, G.

doi:10.1109/tmag.2006.892269

Cited by 7 publications

(4 citation statements)

References 11 publications

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“…Seed levitation means that the manipulation of biological particles is feasible and has much academic and application value. Recently, the researches on magnetic Archimedes Effect increase, The work this article mentions is good enforcement to reference [2] and [3], and derived formulas as well as the simulation results explain and support the phenomenon, making the work meaningful to the research field.…”

Section: Introductionmentioning

confidence: 84%

Research of Seed Levitation Based on Magneto-Archimedes Effect

Zhang

et al. 2010

AMR

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In this research, the principle of diamagnetic levitation is described briefly. The application perspectives of diamagnetic levitation and its advantages are as well discussed. By utilizing the magneto-Archimedes Effect to lift different seeds, the experimental procedures and parameters are provided which include magnetic characteristics of magnets and ratios of magneto-Archimedes solution. The theoretical derivation and finite elements simulation of force when the seeds suspend are conducted. These resolving formulas, methods of numerical simulation as well as means of experiments are meaningful as reference to the researches in this field.

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Section: Introductionmentioning

confidence: 84%

Research of Seed Levitation Based on Magneto-Archimedes Effect

Zhang

et al. 2010

AMR

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“…The framework could be generalized to arbitrary situations without symmetry but the resulting analytical expressions become rapidly difficult to manage. Though we focused on NMR applications, it is important to note that strong gradients with well-controlled profiles can be used for imaging modalities such as Magnetic Particle Imaging (MPI) instruments [28], or for diamagnetic levitation in the design of magnetic traps [29,30].…”

Section: Discussionmentioning

confidence: 99%

An expansion of the field modulus suitable for the description of strong field gradients in axisymmetric magnetic fields: Application to single-sided magnet design, field mapping and STRAFI

Hugon¹,

Aubert²,

Sakellariou³

2012

Journal of Magnetic Resonance

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Mapping (or plotting) the magnetic field has a critical importance for the achievement of the homogeneous magnetic field necessary to standard MR experiments. A powerful tool for this purpose is the Spherical Harmonic Expansion (SHE), which provides a simple way to describe the spatial variations of a field in free space. Well-controlled non-zero spatial variations of the field are critical to MRI. The resolution of the image is directly related to the strength of the gradient used to encode space. As a result, it is desirable to have strong variations of the field. In that case, the SHE cannot be used as is, because the field modulus variations are affected by the variations of all components of the field. In this paper, we propose a method based on the SHE to characterize such variations, theoretically and experimentally, in the limit of an axisymmetric magnetic field. Practical applications of this method are proposed through the examples of single-sided magnet design and characterization, along with Stray-Field Imaging (STRAFI).

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“…In MEMS fabrication, it is not feasible to directly electroplate permanent magnets but it is much easier to electroplate Ni. By electroplating certain structures of Ni and putting permanent magnets around to magnetize Ni, the micro manipulation chips can thus be made to control bio-particles [5,6]. The simple structure of such chip is modeled in figure 2: Figure 5 is the illustration of micro-manipulation chip.…”

Section: Modeling and Simulationmentioning

confidence: 99%