Archive

This clinical report describes the use of radiofrequency (RF) technology in surgery of abdominal and thoracic parenchymatous organs in 17 patients. The authors report one complication (pleural effusion) and otherwise no additional organ complications in the abstract. They also describe a case of splenic preservation…

This in vitro study reports that electric fields can control the velocity of microtubules gliding over a kinesin-coated surface. Assisting fields increased speed up to fivefold, while opposing fields slowed motion to zero, and sideways fields induced significant motion. The authors present a grab-and-release model to…

This engineering study reports spectroscopic determination of net electric field distribution in a dielectric barrier surface glow discharge in low-pressure air. Optical emission spectroscopy was used to infer electric field distribution from the intensity ratio of nitrogen spectral lines at 391.4 nm and 337.1 nm.…

This study measured dielectric properties of beef Semitendinosus across 27, 915, and 1800 MHz and temperatures from -5 to 130 °C using an open-ended coaxial probe. The results indicate that frequency, temperature, and muscle fiber orientation influence dielectric constant, dielectric loss, and calculated penetration…

This in vitro study reports that shortwave (MHz-range) RF exposure can induce strong cytotoxicity in EGFR-overexpressing human cancer cells when those cells have internalized cetuximab-targeted gold nanoparticles. Control nanoparticles showed minimal uptake and substantially lower cytotoxicity under RF exposure. An…

This engineering study addresses interference between induction-heating cookers and an externally coupled transcutaneous energy transmission system for a totally implantable artificial heart. The authors report that magnetic flux from an IH cooker can couple into the TET transformer and affect system performance. A…

This engineering paper introduces an RFID sensor network concept integrating RFID with wireless sensor networks and emphasizes the role of antennas. It discusses coil, dipole, and microstrip antennas and reports designing a microstrip antenna for a wireless temperature monitoring and control system. Measurements are…

This engineering conference paper describes a single access point method for localizing a subject using RF signals from wearable wireless sensors. The approach combines RSSI and LQI measurements from one basestation and applies filtering. The abstract reports that accuracy can approach that of multi-basestation…

This engineering study evaluates whether passive 13.56-MHz RFID-based chemical sensors can quantify analytes reliably despite repositioning errors between the sensor and pickup coil. Using simultaneous measurement of multiple complex-impedance parameters and multivariate statistical analysis, the authors report…

This engineering study reports using radio-frequency (RF)-based dielectric heating to assist NaOH pretreatment of switchgrass to improve enzymatic digestibility. Under the stated conditions, RF-assisted pretreatment produced higher xylose and glucose yields than conventional heating and maintained higher yields at…

This chemistry/engineering study reports the synthesis and NMR/MRI-relevant characterization of a trinuclear Gd(III) chelate intended for high-field MRI contrast applications. Using 17O NMR and proton relaxivity across multiple fields and temperatures, the authors infer bishydration, quantify water exchange and…

This paper describes an exposure and microscopy system designed to continuously observe living cells during exposure to modulated RF-EMF similar to mobile phone signals. Using protocols where the same cells serve as controls before and after exposure, the system was validated with endocytosis measurements. Under 900…

This paper describes an aerodynamically assisted bio-jetting technique that processes living cells/organisms using differential pressure rather than an electric field. The authors report an operational window for stable jetting and near-monodispersed cell-bearing droplets. Cell viability after jetting was evaluated…

This in vitro study measured biophoton/chemiluminescence emission from MDCK cells after inducing reactive oxygen species with hydrogen peroxide. The authors report that photon emission increased with hydrogen peroxide dose and that photomultiplier tube measurements agreed with fluorescence microscopy observations.…