Magnetic field pattern synthesis and its application in targeted drug delivery: Design and implementation

In cancer therapy, magnetic drug targeting is considered as an effective treatment to reduce chemotherapy's side effects. The accurate design and shaping of magnetic fields are crucial for healthy cells to be immune from chemotherapeutics. In this paper, arbitrary 2‐dimensional spatial patterns...

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Bibliographic Details
Published in:Bioelectromagnetics 2018-05, Vol.39 (4), p.325-338
Main Authors: Hajiaghajani, Amirhossein, Abdolali, Ali
Format: Article
Language:English
Subjects:
Arteries
Breast cancer
Cancer
Chemotherapy
coil array
Coils
Drug delivery
Drug delivery systems
Drug development
Eigenvectors
Fourier series
Frequency dependence
Innervation
magnetic drug targeting
Magnetic fields
Pattern formation
pattern synthesis
Patterning
Side effects
Synthesis
tomography
Wave analysis
wireless power transfer
Wireless power transmission
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Summary:In cancer therapy, magnetic drug targeting is considered as an effective treatment to reduce chemotherapy's side effects. The accurate design and shaping of magnetic fields are crucial for healthy cells to be immune from chemotherapeutics. In this paper, arbitrary 2‐dimensional spatial patterns of magnetic fields from DC to megahertz are represented in terms of spatial Fourier spectra with sinusoidal eigenfunctions. Realization of each spatial frequency was investigated by a set of elliptical coils. Therefore, it is shown that the desired pattern was synthesized by simultaneous use of coil sets. Currents running on each set were obtained via fast and straightforward analytical Fourier series calculation. Experimentally scanned sample patterns were in close agreement with full wave analysis. Discussions include the evaluation of the Fourier series approximation error and cross‐polarization of produced magnetic fields. It was observed that by employing the controlled magnetic field produced by the proposed setup, we were able to steer therapeutic particles toward the right or left half‐spheres of the breast, with an efficiency of 90%. Such a pattern synthesizer may be employed in numerous human arteries as well as other bioelectromagnetic patterning applications, e.g., wireless power transfer, magnetic innervation, and tomography. Bioelectromagnetics. 39:325–338, 2018. © 2018 Wiley Periodicals, Inc.
ISSN:0197-8462
1521-186X
DOI:10.1002/bem.22107