Abstract:
: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.
journal_name
Bioelectromagneticsjournal_title
Bioelectromagneticsauthors
Hajiaghajani A,Abdolali Adoi
10.1002/bem.22107subject
Has Abstractpub_date
2018-05-01 00:00:00pages
325-338issue
4eissn
0197-8462issn
1521-186Xjournal_volume
39pub_type
杂志文章abstract::The aim of our study was to test the feasibility and reliability of personal dosimetry. Twenty-four hour exposure assessment was carried out in 42 children, 57 adolescents, and 64 adults using the Maschek dosimeter prototype. Self-reported exposure to mobile phone frequencies were compared with the dosimetry results. ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20175
更新日期:2006-01-01 00:00:00
abstract::This study describes the effects of a static magnetic field (SMF) on cell growth and DNA integrity of human umbilical vein endothelial cells (HUVECs). Fast halo assay was used to investigate nuclear damage; quantitative polymerase chain reaction (QPCR), standard PCR, and real-time PCR were used to evaluate mitochondri...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20591
更新日期:2010-12-01 00:00:00
abstract::The rapid advancement of technology has led to an exponential increase of both nanomaterial and magnetic field utilization in applications spanning a variety of sectors. While extensive work has focused on the impact of these two variables on biological systems independently, the existence of any synergistic effects f...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.21790
更新日期:2013-10-01 00:00:00
abstract::The aim of the present study was to identify the effects of a static magnetic field (SMF) on rat brain structures that control autonomic functions, specifically heart rate and heart rhythmicity. The experiments were carried out on 44 male Wistar rats under ketamine-xylazine anesthesia. SMF was induced using samarium-c...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10186
更新日期:2004-04-01 00:00:00
abstract::Irreversible changes in the heat capacity of human erythrocyte ghost suspensions due to the effect of 330-MHz radiofrequency radiation (at a specific absorption rate of approximately 9 mW/g) were detected by the method of scanning differential microcalorimetry. Using the data obtained from the analysis of infrared spe...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250050406
更新日期:1984-01-01 00:00:00
abstract::We investigated the effects on human keratinocytes (HaCaT) of exposure to a sinusoidal magnetic field of 2 mT (50 Hz). These cells are a good model for studying interaction of nonionising radiation, because they are not shielded from fields in vivo and also because they are resistant to both mechanical and thermal sti...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.10023
更新日期:2002-05-01 00:00:00
abstract::To characterize the inhibitory effect of a static magnetic field, action potentials (AP) were elicited by intracellular application of 1 ms depolarizing current pulses of constant amplitude to the somata of adult mouse dorsal root ganglion neurons in monolayer dissociated cell culture. During the control period, < 5% ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250160108
更新日期:1995-01-01 00:00:00
abstract::The influence of a pulsed magnetic field (PMF; sawtooth with 45-microseconds linear rise time and 5-microseconds decay time, peak strength of 15 microT, and frequency 20000 pps) [corrected] on the embryogenesis of CBA/S mice was investigated in five experiments based on a total of 707 exposed and 543 unexposed primigr...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250140303
更新日期:1993-01-01 00:00:00
abstract::We sought to determine whether a 6-week exposure to a 50-Hz rotating magnetic field influences melatonin synthesis by 11-18 week-old Wistar-King male rats. Rats were exposed continuously to a rotating magnetic field at 1, 5, 50, or 250 microT (spatial vector rms) for 6 weeks, except for twice-weekly breaks of about 2 ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250140203
更新日期:1993-01-01 00:00:00
abstract::Most of the research concerning magnetic antinociception was focused on brief exposure less than 1 h. The main purpose of the present study was to determine the effect of extremely low frequency (ELF) magnetic field (MF) repeated exposures on rats in inducing antinociception and to find the effective analgesic "time w...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20232
更新日期:2006-09-01 00:00:00
abstract::A mechanism is presented that predicts new biological effects of static and sinusoidal weak magnetic fields. The model is based on an earlier proposed interference mechanism of quantum states of ions within protein cavities. The quantum dynamics of an ion is studied for the case of ion-protein complexes that rotate in...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::The effects of millimeter microwaves in the frequency range of 54-76 GHz on capacitance and conductance of lipid bilayer membranes (BLM) were studied. Some of the membranes were modified by gramicidin A and amphotericin B or by tetraphenylboron anions (TPhB-). The millimeter microwaves were pulse-modulated (PW) at rep...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250160209
更新日期:1995-01-01 00:00:00
abstract::A retrospective study on reproductive hazards was performed among 542 employees at Swedish power plants. Questionnaires were answered by 89% of the employees. Data on pregnancies were checked by studying hospital case records. There was a statistically significant, decreased frequency of "normal" pregnancy outcome, al...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250040109
更新日期:1983-01-01 00:00:00
abstract::A new human head phantom has been proposed by CENELEC/IEEE, based on a large scale anthropometric survey. This phantom is compared to a homogeneous Generic Head Phantom and three high resolution anatomical head models with respect to specific absorption rate (SAR) assessment. The head phantoms are exposed to the radia...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20088
更新日期:2005-02-01 00:00:00
abstract::The potential ability of radiofrequency electromagnetic radiation (RFR) in the microwave range to induce mutagenesis, chromosomal aberrations, and sister chromatid exchanges in mammalian cells is being explored in our laboratories. In addition, we have also been examining the ability of simultaneous exposure to RFR an...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250110206
更新日期:1990-01-01 00:00:00
abstract::Human glioma MO54 cells were used to investigate whether radio frequency (RF) field exposure could activate stress response genes. Cells were exposed to continuous wave 1950 MHz or sham conditions for up to 2 h. Specific absorption rates (SARs) were 1, 2, and 10 W/kg. For the cell growth experiment, cell numbers were ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20077
更新日期:2005-05-01 00:00:00
abstract::Rats were tested for neurobehavioral alterations immediately after exposure to 2.45-GHz (CW) microwave radiation at 10 mW/cm2 for 7 h. Behavioral tests used were locomotor activity, startle to an acoustic stimulus and acquisition and retention of a shock-motivated passive avoidance task. Both horizontal and vertical c...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250090307
更新日期:1988-01-01 00:00:00
abstract::The objective was to study the risk of cytogenetic damage among high voltage laboratory workers exposed to electromagnetic fields and mineral oil. This is a cross sectional study of 24 exposed and 24 matched controls in a Norwegian transformer factory. The exposure group included employees in the high voltage laborato...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.33
更新日期:2001-04-01 00:00:00
abstract::Measurements have been made of vector current densities induced by vertical, uniform, 60-Hz electric fields in the torsos of homogeneous models of swine and rats. The observed data were a strong function of the five grounding configurations invested: all four feet grounded, only front feet grounded, only rear feet gro...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250090102
更新日期:1988-01-01 00:00:00
abstract::Pregnant squirrel monkeys were exposed to 2450-MHz (CW) microwaves at an equivalent power density of 10 mW/cm2 (SAR 3.4 mW/g) for three hours daily in a cavity-cage module. The exposure began when pregnancy was determined by a hormonal method, and continued through of offspring's first 9.5 months. After irradiation, t...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250020305
更新日期:1981-01-01 00:00:00
abstract::In May 2011, the International Agency on Cancer in Research (IARC) issued an official statement concluding that cell phone usage was "possibly carcinogenic to humans." There have been considerable doubts that non-experts and experts alike fully understood what IARC's categorization actually meant, as "possibly carcino...
journal_title:Bioelectromagnetics
pub_type: 信件
doi:10.1002/bem.21851
更新日期:2014-07-01 00:00:00
abstract::Little is known about the influence of magnetic fields on growth of primitive eukaryotes such as the ciliate Paramecium. The latter are known to exhibit interesting characteristics such as electrotaxis, gravitaxis, and membrane excitability not commonly encountered in higher organisms. This preliminary study reports t...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20172
更新日期:2006-01-01 00:00:00
abstract::Composition and content of lipids were studied in leaves of red perilla plants (Perilla nankinensis [Lour.] Decne.) grown in weak permanent horizontal magnetic field (PMF) of 500 µT flux density under controlled illumination, temperature, and humidity in the phytothron chamber. Control plants were grown under similar ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.21957
更新日期:2016-02-01 00:00:00
abstract::To investigate the effects of 1.8 GHz radiofrequency (RF) field on bone microstructure and metabolism of femur in mice, C57BL/6 mice (male, age 4 weeks) were whole-body exposed or sham exposed to 1.8 GHz RF field. Specific absorption rates of whole body and bone were approximately 2.70 and 1.14 W/kg (6 h/day for 28 da...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.22125
更新日期:2018-07-01 00:00:00
abstract::This report describes some experimental measurements of the internal field levels induced within isolated chick-forebrains irradiated at 50, 147, and 450 MHz, under essentially the same conditions as those used in the in vitro calcium-ion efflux experiments. Ratios of incident power at 50/147 MHz and 147/450 MHz that ...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250050302
更新日期:1984-01-01 00:00:00
abstract::We study the effect of microwaves at 2,450 MHz on protein unfolding using surface plasmon resonance sensing. Our experimental method makes use of the fact that unfolding proteins tend to bind to chaperones on their unfolding pathway and this attachment is readily monitored by surface plasmon resonance. We use the prot...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20382
更新日期:2008-05-01 00:00:00
abstract::The aim of this study was to explore the prevalence, nature and determinants of concerns about mobile phone radiation. We used data from a 2006 telephone survey of 1004 people aged 15+ years in Denmark. Twenty-eight percent of the respondents were concerned about exposure to mobile phone radiation; radiation from mast...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20484
更新日期:2009-07-01 00:00:00
abstract::Possible effects of 1439 MHz electromagnetic near field (EMF) exposure on the blood-brain barrier (BBB) were investigated using immature (4 weeks old) and young (10 weeks old) rats, equivalent in age to the time when the BBB development is completed and the young adult, respectively. Alteration of BBB related genes, s...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.20138
更新日期:2005-10-01 00:00:00
abstract::The effect of millimeter waves (MMWs) on the genome conformational state (GCS) of E. coli AB1157 cells was studied by the method of anomalous viscosity time dependencies (AVTD) in the frequency range of 51.64-51.85 GHz. The 51.755 GHz resonance frequency of the cell reaction to MMWs did not depend on power density (PD...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/(SICI)1521-186X(1996)17:4<312::AID-BEM7>3.
更新日期:1996-01-01 00:00:00
abstract::The effects of exposure to clinical magnetic resonance imaging (MRI) on analgesia induced by the mu opiate agonist, fentanyl, was examined in mice. During the dark period, adult male mice were exposed for 23.2 min to the time-varying (0.6 T/sec) magnetic field (TVMF) component of the MRI procedure. Following this expo...
journal_title:Bioelectromagnetics
pub_type: 杂志文章
doi:10.1002/bem.2250090208
更新日期:1988-01-01 00:00:00