scholarly journals Elongated Nanoparticle Aggregates in Cancer Cells for Mechanical Destruction with Low Frequency Rotating Magnetic Field

Theranostics ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 1735-1748 ◽  
Author(s):  
Yajing Shen ◽  
Congyu Wu ◽  
Taro Q. P. Uyeda ◽  
Gustavo R. Plaza ◽  
Bin Liu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Cancer Cells ◽  
Low Frequency ◽  
Rotating Magnetic Field ◽  
Mechanical Destruction ◽  
Nanoparticle Aggregates

A novel magnetic field generating machine with a wide range of tunable parameters to study in vitro cells

2020 ◽  
Author(s):  
Maryam sadat Nezamtaheri ◽  
Seyed Peyman Shariatpanahi ◽  
Bahram Goliaei ◽  
Alireza Madjid Ansari
Keyword(s):  
Magnetic Field ◽  
Cancer Cells ◽  
Biological Effects ◽  
Low Frequency ◽  
Live Cells ◽  
Magnetic Flux Density ◽  
Dependent Manner ◽  
Exposure System ◽  
Wide Range ◽  
Frequency Magnetic Field

Abstract Background Extremely low-frequency magnetic field (ELF-MF) significantly induces apoptosis in cancer cells. To study the biological effects of the ELF-MF on tumor cells, we have designed and constructed a new exposure system that provides a uniform magnetic field with negligible temperature fluctuations during the exposure. Additionally, it provides ideal physiological conditions for live cells inside the incubator. This ELF-MF exposure system eliminates several limitations and disadvantages of other low frequency magnetic field systems; it generates a magnetic field with a frequency of 0 to 70 Hz with a maximum magnetic flux density of 150 mT. Methods The capabilities of the setup were examined using a 1 Hz, 100 mT magnetic field, at various exposure times, to induce apoptosis-mediated cell death in the MC4-L2 cell line. After exposure, apoptosis was assessed by flow cytometry. Results A biphasic response was observed in cells exposed to ELF-MF: at first a decreasing apoptotic rate during 2-12 hours exposure time was detected, after which apoptosis gradually increased during 24-120 hours of exposure. Conclusions We show that ELF-MF exposure with a frequency of 1 Hz and intensity of 100 mT induces apoptosis in MC4-L2 cancer cells in a time-dependent manner. These results show the significance of the long term studies of the ELF exposure effects.

Physics of Flexible Magnetic Filaments

2011 ◽  
Vol 222 ◽  
pp. 221-224 ◽  
Author(s):  
Ivars Javaitis ◽  
Vineta Zilgalve
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
Coefficient Of Friction ◽  
Low Frequency ◽  
Rotating Magnetic Field ◽  
Physical Parameters ◽  
Filament Dynamics ◽  
Field Coefficient ◽  
Stable Shape

A model of elastic magnetic filaments is developed, which allows investigating the dependence of filament dynamics on such physical parameters as magnetoelastic number (Cm), frequency of magnetic field, coefficient of friction, etc. By numerical simulation of the dynamics of filament shaping under the action of magnetic field it is shown that a characteristic U-like stable shape (hairpins) can form. Such a shape of filament can exist in the case of low-frequency rotating magnetic field. At the frequency increasing the U-like shape transforms to the S-like one. In the present work it is shown that in unsteady magnetic field a flexible magnetic filament “swims” in the direction of magnetic field.

Tuning mass transport in magnetic nanoparticle-filled viscoelastic hydrogels using low-frequency rotating magnetic fields

Soft Matter ◽  
2017 ◽  
Vol 13 (36) ◽  
pp. 6259-6269 ◽  
Author(s):  
Shahab Boroun ◽  
Faïçal Larachi
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Mass Transport ◽  
Magnetic Nanoparticle ◽  
Low Frequency ◽  
Rotating Magnetic Field ◽  
Rotating Magnetic Fields ◽  
Rotational Movement

Rotational movement of MNPs in ferrogels in an external rotating magnetic field for tuning mass transport.

scholarly journals EFFECTS OF EXTREMELY LOW-FREQUENCY MAGNETIC FIELD ON HEALTHY FIBROBLASTS AND BREAST CANCER CELLS

2020 ◽  
Vol 83 (4) ◽  
Author(s):  
Handan Kayhan ◽  
Babek Erdebilli ◽  
Sevim Gönen ◽  
Meriç Arda Eşmekaya ◽  
Ersen Ertekin ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Magnetic Field ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Low Frequency ◽  
Extremely Low Frequency ◽  
Frequency Magnetic Field

Cancer Cells Microsurgery via Asymmetric Bent Surface Au/Ag/Ni Microrobotic Scalpels Through a Transversal Rotating Magnetic Field

ACS Nano ◽  
2020 ◽  
Vol 14 (7) ◽  
pp. 8247-8256 ◽  
Author(s):  
Jan Vyskočil ◽  
Carmen C. Mayorga-Martinez ◽  
Eva Jablonská ◽  
Filip Novotný ◽  
Tomáš Ruml ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Cancer Cells ◽  
Rotating Magnetic Field

scholarly journals In Vivo Cancer Cells Elimination Guided by Aptamer-Functionalized Gold-Coated Magnetic Nanoparticles and Controlled with Low Frequency Alternating Magnetic Field

Theranostics ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 3326-3337 ◽  
Author(s):  
Irina V. Belyanina ◽  
Tatiana N. Zamay ◽  
Galina S. Zamay ◽  
Sergey S. Zamay ◽  
Olga S. Kolovskaya ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Nanoparticles ◽  
Cancer Cells ◽  
Low Frequency ◽  
Alternating Magnetic Field
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