Semi-quantitative proteomics of mammalian cells upon short-term exposure to non-ionizing electromagnetic fields.
Research
RF Safe Research Library
Jan 1, 2017
This in vitro study used proteome-wide semi-quantitative mass spectrometry to assess molecular changes after short-term exposure to ELF (50 Hz), UMTS (2.1 GHz), and WiFi (5.8 GHz) in human and mouse cell types. The authors report that fewer than 1% of quantified proteins changed slightly in abundance and that…
THE INFLUENCE OF THE SELECTED CATALYSTS AND MICROWAVE RADIATION ON THE COURSE OF OBTAINING POLY-e-CAPROLACTONE AS A BIODEGRADABLE CARRIER OF MEDICINAL SUBSTANCES.
Research
RF Safe Research Library
Jan 1, 2017
This laboratory study investigated ring-opening polymerization of ε-caprolactone using organic-acid catalysts to produce poly-ε-caprolactone intended as a biodegradable drug carrier. The authors report that citric acid catalysis yielded substantially higher molecular weight polymer than other catalysts. They also…
Microwave to near-infrared conversion with a millimeter-scale wireless laser for activating molecular transducers.
Research
RF Safe Research Library
Jan 1, 2016
This conference paper reports an engineering approach to convert wireless microwave power into near-infrared light using a miniaturized, wirelessly powered laser. The device is described as millimeter-scale and capable of being powered through >1 cm of tissue. The abstract focuses on enabling in vivo activation of…
2.45 GHz Microwave Radiation Impairs Learning and Spatial Memory via Oxidative/Nitrosative Stress Induced p53-Dependent/Independent Hippocampal Apoptosis: Molecular Basis and Underlying Mechanism
Research
RF Safe Research Library
Jan 1, 2015
This animal study exposed male Swiss mice to 2.45 GHz continuous-wave microwave radiation for 2 hours/day over 15, 30, or 60 days. The authors report increased hippocampal oxidative/nitrosative stress and increased apoptosis in neuronal and nonneuronal hippocampal subfields. They also report duration-dependent…
Electromagnetic fields (UHF) increase voltage sensitivity of membrane ion channels; possible indication of cell phone effect on living cells.
Research
RF Safe Research Library
Jan 1, 2015
This in vitro study used voltage clamp recordings of single OmpF porin channels in an artificial bilayer to test effects of UHF EMF (910–990 MHz). The authors report frequency-dependent changes in channel gating, with increased gating frequency and voltage sensitivity and a maximum effect at 930 MHz. Conductance was…
Molecular dynamics study of response of liquid N,N-dimethylformamide to externally applied electric field using a polarizable force field.
Research
RF Safe Research Library
Jan 1, 2014
This molecular dynamics simulation study examined liquid N,N-dimethylformamide exposed to uniform external electric fields from 0.001 to 1 V/nm using an extended AMOEBA polarizable force field. The authors report that fields above 0.01 V/nm significantly altered the liquid’s structure and a range of molecular and…
Suppression of unimolecular decay of laser desorbed peptide and protein ions by entrainment in rarefied supersonic gas jets under weak electric fields.
Research
RF Safe Research Library
Jan 1, 2014
This engineering-focused paper reports the design principle and performance of a MALDI ion source ("MALDI-2") combining rarefied supersonic gas jets with weak electric fields and injection into gas-filled RF multipoles. The abstract reports rapid collisional cooling (
Biaxiality-induced magnetic field effects in bent-core nematics: molecular-field and Landau theory.
Research
RF Safe Research Library
Jan 1, 2013
This paper theoretically investigates magnetic-field-induced phenomena in bent-core nematic liquid crystals, focusing on how molecular biaxiality modifies the response. Using molecular field and Landau theory, it reproduces reported experimental trends such as an enhanced Cotton-Mouton effect and an increase in the…
The movement of actin-myosin biomolecular linear motor under AC electric fields: an experimental study.
Research
RF Safe Research Library
Jan 1, 2013
This in vitro experimental study examined how an AC electric field influences actin filament (F-actin) movement on a myosin-coated substrate. The authors report that the field induces electro-orientation torque that aligns movement perpendicular toward electrode edges, with alignment increasing with field strength.…
Influence of magnetic field on aqueous two-phase extraction of horse ferritin in the polyethylene glycol/hydroxyethyl starch system.
Research
RF Safe Research Library
Jan 1, 2012
This study reports an aqueous two-phase extraction method for equine spleen ferritin using polyethylene glycol (PEG) and hydroxyethyl starch (HES). Ferritin partitioning depended on PEG/HES concentrations and PEG molecular weight, and applying a magnetic field increased ferritin accumulation in the PEG-rich phase…
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…
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…
Microscopic dynamics of the orientation of a hydrated nanoparticle in an electric field.
Research
RF Safe Research Library
Jan 1, 2009
This paper uses atomistic simulations to examine how a nonpolar nanoparticle suspended in water reorients under an applied electric field. The authors report that molecular-level effects increase the torque relative to continuum estimates and substantially speed up reorientation above a stated field threshold. The…