Sleep and Arousal Hubs and Ferromagnetic Ultrafine Particulate Matter and Nanoparticle Motion Under Electromagnetic Fields: Neurodegeneration, Sleep Disorders, Orexinergic Neurons, and Air Pollution in Young Urbanites
Research
RF Safe Research Library
Jan 1, 2025
This review/overview argues that ultrafine particulate matter and industrial nanoparticles can reach the brain and accumulate in sleep and arousal regulatory regions, including orexinergic neuron hubs. It reports that ferromagnetic particles in these regions show motion responsive to low-intensity electromagnetic…
Effects of flow-induced electromagnetic field and surface roughness on antifouling activity of phenolic compounds.
Research
RF Safe Research Library
Jan 1, 2024
This study examined whether a flow-induced electromagnetic field in an electrolyte system affects bacterial adhesion to polycardanol-based surfaces modified with ferromagnetic iron oxide. IO-ionic solution-modified surfaces associated with induced currents (44–66 nA) showed reduced bacterial adhesion compared with…
Efficient DNA ligation by selective heating of DNA ligase with a radio frequency alternating magnetic field.
Research
RF Safe Research Library
Jan 1, 2016
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…
Three-dimensional dynamics of a particle with a finite energy of magnetic anisotropy in a rotating magnetic field.
Research
RF Safe Research Library
Jan 1, 2013
This paper presents a theoretical model of a single ferromagnetic particle with finite coupling between its magnetic moment and particle body in a rotating magnetic field. It describes synchronous and asynchronous motion regimes, including planar motion at low frequencies and a precession regime at high frequencies,…
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…
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…
Pressure and magnetic field dependence of valence and magnetic transitions in EuPtP.
Research
RF Safe Research Library
Jan 1, 2010
This laboratory study investigates how magnetic field and pressure affect valence and magnetic transitions in the compound EuPtP. High-field analysis suggests a mixed valence state at low temperature and discontinuous changes in Eu2+ fraction at two transition temperatures. Pressure increases the transition…
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…
Electric field switching of the magnetic anisotropy of a ferromagnetic layer exchange coupled to the multiferroic compound BiFeO3.
Research
RF Safe Research Library
Jan 1, 2009
This paper reports electric-field control of magnetic anisotropy in a Permalloy layer exchange-coupled to a multiferroic BiFeO3 single crystal. The anisotropy is described as arising from magnetic coupling to canted spins in BiFeO3’s cycloidal antiferromagnetic structure. An electric field-induced polarization change…
Apparent violation of the Wiedemann-Franz law near a magnetic field tuned metal-antiferromagnetic quantum critical point.
Research
RF Safe Research Library
Jan 1, 2008
This paper reports calculations of interlayer electrical and thermal resistivity in a layered metal assuming Fermi-liquid quasiparticles inelastically scattered by two-dimensional antiferromagnetic spin fluctuations. The model yields linear-in-temperature behavior over a broad range and suggests that extrapolations…