Archive

This in vitro study compared commonly used pulsed electromagnetic field (PEMF) exposures with electromagnetic fields tuned to satisfy the ion cyclotron resonance (ICR) condition for calcium. After 3 weeks, the calcium ICR condition was associated with increased glycosaminoglycans and type II collagen synthesis and…

This laboratory study tested whether brief ELF-EMF seed pretreatment could enhance cadmium accumulation in white mustard seedlings. Seeds exposed to 50 Hz alternating EMF (60 or 120 mT) for 1 minute produced shoots with higher cadmium content than controls, while biomass was unchanged. The authors suggest potential…

This in vitro study describes a method to improve DNA ligation by immobilizing T4 DNA ligase on ferromagnetic particles and applying a radio frequency alternating magnetic field. The field causes the particles to dissipate heat, which the authors report selectively heats and activates the ligase while minimally…

This animal and in vitro study reports a method to lyse tumor cells mechanically using targeted superparamagnetic iron oxide nanoparticles rotated by a weak alternating magnetic field. Nude mice with head and neck tumors received cetuximab-coated nanoparticles and 4 Hz field exposures for 30 minutes on alternating…

This in vitro study examined whether exposing Blemaren water solutions (pH 6.15) to a 2 Hz alternating magnetic field for one hour changes their ability to dissolve uroliths. The authors report higher dissolution efficiency (about 1.922d7) in pre-exposed solutions compared with non-exposed controls. They also report…

This paper describes synthesis and characterization of magnetic nanoparticles intended for tumor hyperthermia applications. It reports that the particles show relatively high specific absorption rate (22–200 W/g) under a 160 kHz alternating magnetic field at 100–500 Oe, despite low saturation magnetization. The…

This animal study reports that combined static (42 μT) and very weak alternating (250 nT) magnetic fields can modulate the duration of metamorphosis in Tenebrio molitor pupae depending on the alternating-field frequency. A shorter pupal stage was reported at 4.4 Hz, an inhibiting effect at 32.2 Hz, and no noticeable…

The paper reviews and analyzes mechanisms for resonance action of extremely weak alternating magnetic fields (40 nT) combined with weak static fields (40 μT), tuned to cyclotron frequencies. It references prior reports of narrow resonant peaks in electrical conductivity of aqueous solutions and biomedical effects in…

This engineering study reports fabrication of a biodegradable PLLA shape-memory nanocomposite incorporating surface-modified Fe3O4 nanoparticles. The composite showed improved tensile/mechanical and shape-memory properties compared with PLLA, and shape recovery could be triggered by an alternating magnetic field.…

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…

This laboratory study examined whether a weak alternating magnetic field tuned to the cyclotron frequency of Ca2+ and K+ ions influences fusion of tobacco and soya protoplasts. The abstract reports a 2–3× increase in protoplast fusion frequency under exposure. It also reports involvement of calcium ions in induction…