Effects of chain stiffness and salt concentration on responses of polyelectrolyte brushes under external electric field.
Research
RF Safe Research Library
Jan 1, 2011
This paper reports molecular dynamics simulations of polyelectrolyte brushes subjected to external electric fields, focusing on how chain stiffness and salt concentration affect responses. The simulations suggest higher salt concentrations strengthen an induced opposing field from ion redistribution, which resists…
A handheld preconcentrator for the rapid collection of cancerous cells using dielectrophoresis generated by circular microelectrodes in stepping electric fields.
Research
RF Safe Research Library
Jan 1, 2011
This engineering study describes a handheld microfluidic preconcentrator that uses dielectrophoresis generated by circular microelectrodes with a stepping electric field. Numerical simulations were used to illustrate the electric-field concept. In experiments, HeLa cells were reportedly preconcentrated within 160…
Correction of microcirculatory disturbances with terahertz electromagnetic radiation at nitric oxide frequencies in albino rats under conditions of acute stress.
Research
RF Safe Research Library
Jan 1, 2011
This animal study reports that terahertz electromagnetic irradiation at nitric oxide (NO)-related frequencies (150.176150.664 GHz) corrected peripheral microcirculatory disturbances in albino rats experiencing acute immobilization stress. The abstract frames the effect as a correction of stress-related peripheral…
Hematological and toxicogenomic effects of ferromagnetic screening of natural electromagnetic fields.
Research
RF Safe Research Library
Jan 1, 2011
This rat study tracked hematological and toxicogenomic aftereffects over 45 days following 2 days of ferromagnetic screening of natural electromagnetic fields. The authors report leukopenia at day 14 and increases in genomic instability markers (aneuploidy and polyploidy) in male leukocytes persisting after screening…
Milk processed by pulsed electric fields: evaluation of microbial quality, physicochemical characteristics, and selected nutrients at different storage conditions.
Research
RF Safe Research Library
Jan 1, 2011
This study evaluated pulsed electric fields (PEF) as a pasteurization method for raw skim and whole milk across multiple treatment intensities and storage conditions. The abstract reports only minor changes in physicochemical properties and small decreases in some composition measures under stronger treatments.…
Nanocrystalline graphite films nucleation by the radio frequency bias pretreatment.
Research
RF Safe Research Library
Jan 1, 2011
This paper describes an engineering method for nucleating nanocrystalline carbon films on monocrystalline silicon using a combination of microwave and radio frequency plasma-assisted chemical vapor deposition. The approach is demonstrated via deposition of nanocrystalline diamond after a seeding step and growth of…
Down-regulation of metallothionein 1 and 2 after exposure to electromagnetic field in mouse testis.
Research
RF Safe Research Library
Jan 1, 2011
This animal study examined mouse testis after 8 weeks of exposure to a 3 MT electromagnetic field (4 hours/day). The authors report significant histological changes (increased primary spermatocytes, increased Leydig cells, and increased basement membrane thickness) in exposed mice versus controls. MT1 and MT2…
Would pulsed radiofrequency applied to different anatomical regions have effective results for chronic pain treatment?
Research
RF Safe Research Library
Jan 1, 2011
This retrospective cross-sectional study evaluated pulsed radiofrequency (PRF) for chronic pain in patients who did not respond to conventional treatment. Across 24 patients treated at different anatomical regions, 66.7% reportedly achieved at least a 50% reduction in VAS pain scores over a mean follow-up of 8.5…
Hyperthermic effects of dissipative structures of magnetic nanoparticles in large alternating magnetic fields.
Research
RF Safe Research Library
Jan 1, 2011
This paper addresses heat dissipation mechanisms of magnetic nanoparticles used in targeted hyperthermia under large alternating magnetic fields. Using numerical comparisons, it reports additional features in relaxation loss for rotatable superparamagnetic nanoparticles and field-induced formation of oriented…
Dynamic control of adsorption sensitivity for photo-EMF-based ammonia gas sensors using a wireless network.
Research
RF Safe Research Library
Jan 1, 2011
This engineering paper proposes a control method for a photo-electromagnetic field (EMF)-based ammonia gas sensor that uses a wireless network and adjusts illumination light intensity. It reports that measurement error is minimized over 3800 ppm ammonia when the concentration corresponds to an optimal illumination…
Historical building monitoring using an energy-efficient scalable wireless sensor network architecture.
Research
RF Safe Research Library
Jan 1, 2011
This engineering paper describes low-power wireless sensor nodes and a cluster-based dynamic-tree hierarchical WSN architecture for monitoring historical buildings and wooden artifacts for early pest detection. The authors report simulation and demonstration results indicating improved scalability and reliability…
Response identification in the extremely low frequency region of an electret condenser microphone.
Research
RF Safe Research Library
Jan 1, 2011
This engineering study describes an experimental setup using a small electret condenser microphone connected to a notebook/PC to detect extremely low frequency signals. Using a small air cell made from a drilled DVD plate with a speaker and microphone on opposite sides, the microphone captured signals in the 0.5–20…
Effect of magnetic fields on tumor growth and viability.
Research
RF Safe Research Library
Jan 1, 2011
This animal study evaluated whether magnetic field exposure affects breast tumor growth and viability in mice injected with breast cancer cells. Tumor growth was monitored in real time using luciferase labeling and an in vivo imaging system. The authors report that 360 minutes of daily magnetic field exposure for up…
[Clinical efficacy of acne scar treatment with micro-plasma radio frequency].
Research
RF Safe Research Library
Jan 1, 2011
This clinical study evaluated micro-plasma radio frequency treatment for facial acne scars in 24 patients. Patients received 3–5 treatments and were assessed using photographs before and 2 months after treatment. The authors report an overall improvement rate of 83.33% and conclude the technique is effective.
Impact of a static magnetic field on the electricity production of Shewanella-inoculated microbial fuel cells.
Research
RF Safe Research Library
Jan 1, 2011
This study investigated how exposure to a static magnetic field affects electricity production in Shewanella-inoculated microbial fuel cells across different reactor configurations. A 100 mT field was reported to increase maximum voltage and the effect was described as immediate and reversible, with possible adverse…
Human keratinocytes in culture exhibit no response when exposed to short duration, low amplitude, high frequency (900 MHz) electromagnetic fields in a reverberation chamber.
Research
RF Safe Research Library
Jan 1, 2011
This in vitro study exposed normal human epidermal keratinocytes to non-thermal 900 MHz electromagnetic fields in a mode-stirred reverberation chamber under two short-duration conditions. Microarray analysis found only limited gene modulation (20 genes) with small expression ratios and no shared genes across…
Evaluation of magnetic resonance safety of veterinary radiofrequency identification devices at 1 T.
Research
RF Safe Research Library
Jan 1, 2011
This study evaluated MRI safety parameters for three commercial veterinary RFID microchips at 1 T, assessing movement forces, heating, artifacts, and device function. Translation and torque were reported to be larger than expected from normal activity, but no significant heating was observed and microchip function…
A rapid and facile synthesis of nanofibrillar polyaniline using microwave radiation.
Research
RF Safe Research Library
Jan 1, 2010
This engineering study describes a microwave-assisted method to synthesize polyaniline (PANI) nanofibers. Reported yields under microwave irradiation were similar to conventional synthesis but achieved in minutes rather than hours. Structural and morphological characterization (FTIR, Raman, SEM, TEM) reportedly…
Orientation and Dynamics of ZnO Nanorod Liquid Crystals in Electric Fields.
Research
RF Safe Research Library
Jan 1, 2010
This materials study reports that ZnO nanorod polymer hybrids can form liquid-crystalline phases and exhibit orientation switching under an applied AC electric field. The orientation reportedly changes from planar to homeotropic, analogous to switching in low-molecular liquid crystals. Dielectric measurements and…
Ohmic heating of peaches in the wide range of frequencies (50 Hz to 1 MHz).
Research
RF Safe Research Library
Jan 1, 2010
This engineering/food science study examined ohmic heating of peaches at 60 V/cm using bipolar pulses across frequencies from 50 Hz to 1 MHz. Heating time to a target temperature and multiple electrical properties were frequency-dependent, particularly for intact tissue. The authors report faster electro-thermal…
Interaction quench dynamics in the Kondo model in the presence of a local magnetic field.
Research
RF Safe Research Library
Jan 1, 2010
This theoretical study analyzes quench dynamics in the Kondo model on the Toulouse line in the presence of a local magnetic field. The authors report exact analytical results for local spin dynamics, finding that relaxation timescales are set by the Kondo scale. They also describe damped transient oscillations in…
Effects of magnetic field and pressure on the intermediate valence state of YbPd.
Research
RF Safe Research Library
Jan 1, 2010
This condensed-matter physics study examined how high magnetic fields and pressure affect magnetization, transport, and thermodynamic properties of the intermediate-valence compound YbPd. The authors report that the Yb valence state and two first-order transitions are stable up to 55 T, while increasing pressure…
Magnetodeformation effects and the swelling of ferrogels in a uniform magnetic field.
Research
RF Safe Research Library
Jan 1, 2010
This laboratory/materials study examined deformation and swelling of magnetic field sensitive polymer gels (ferrogels) in a static, uniform magnetic field. The authors report that gels with randomly distributed magnetic particles exhibited weak magnetodeformation, whereas gels with aligned particles showed no…
Electron dynamics in inhomogeneous magnetic fields.
Research
RF Safe Research Library
Jan 1, 2010
This paper is a review of two-dimensional electron dynamics in microscopically inhomogeneous magnetic fields, focusing on magnetic potentials varying on scales smaller than the mean free path. It covers early work on localization in random magnetic fields, methods to fabricate magnetic potentials, and drift-diffusion…
Thermodynamic behavior of the XXZ Heisenberg s = 1/2 chain around the factorizing magnetic field.
Research
RF Safe Research Library
Jan 1, 2010
This paper theoretically investigates zero- and finite-temperature behavior of an anisotropic antiferromagnetic Heisenberg XXZ spin-1/2 chain under a transverse magnetic field, focusing between the factorizing and critical fields. It reports an entanglement phase transition at the factorizing field where entanglement…