Archive

This engineering study describes miniaturized, flexible, battery-free wearable pulse oximetry systems that use near-field communication (NFC) for wireless operation. The devices capture and transmit photoplethysmograms to derive blood oxygenation, heart rate, and heart rate variability. The abstract reports…

This study compared thermosonication, pulsed electric field, and thermal processing for preserving Royal Gala apple juice and evaluated sensory attributes and quality stability during 30 days of storage at 3°C and 20°C. Thermosonication and pulsed electric field produced juices with different taste compared with…

The study presents a smart city service for electromagnetic field assessment using deployed measuring probes integrated into a city platform. Data collected for more than one year are processed to characterize E-field levels across large areas and over time. The authors report that the results validate the…

This animal study tested four frequency-band EMF exposures (1–50,000 Hz variants) in an ovariectomized mouse model of osteoporosis over 8 weeks (3 h/day). Low- and band-pass exposures increased bone formation markers and osteogenesis-related gene expression, while high-pass exposure decreased both formation and…

This animal study evaluated whether 50 Hz EMF exposure enhances wound healing after transplantation of human epidermal stem cells (ESC) seeded in collagen sponge scaffolds. Thirty-six nude mice with full-thickness wounds were assigned to control, ESC-only, or ESC+EMF groups (50 Hz, 5 mT, 60 min/day for 20 days). The…

This study investigated 2 nm protein-stabilized gold nanoclusters in six mammalian cell types under 1 GHz electromagnetic field exposure. The authors report low intrinsic toxicity of the nanoclusters, but a significant decrease in cell viability when nanocluster-incubated cells were exposed to the 1 GHz field,…

This retrospective cohort study reviewed medical records from a Swedish tertiary pain centre to assess 1-month outcomes after pulsed radiofrequency for chronic non-cancer pain. Among patients receiving lumbar median branch pulsed radiofrequency, a minority had major or minor improvement, while many had no change and…

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 review-style article discusses gerontechnologies—mobile applications on smartphones/tablets and remote monitoring systems—for outpatient symptom monitoring and self-care management in older adults with heart failure. It frames these tools as potentially cost-effective and accessible when designed for older…

This engineering paper reports a prototype wearable patient-monitoring device that transmits vital-sign measurements via Bluetooth LE during MRI. Across 7 MRI acquisitions (25 minutes total), the authors report no Bluetooth packet loss, increased PPG noise during MRI, and no effect on temperature/humidity readings.…

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…

This engineering conference paper describes a method for controlling the locomotion of swallowable wireless capsule endoscopy devices using a dynamic magnetic field generated by external coils. A permanent magnet embedded in the capsule is manipulated by adjusting external field strengths to maintain equilibrium for…

This review assessed surgical and procedural case logbook smartphone applications available in major app stores. Of 2,740 apps screened, 16 were relevant and 11 were suitable for critical review, with reported variation in app size and cost. The authors conclude that current mobile apps can efficiently replace…

This laboratory/analytical study examined how sample matrix affects sample sweeping in micellar electrokinetic chromatography under an inhomogeneous electric field. It reports strong focusing for hydrophobic cationic analytes when the sample matrix conductivity is much higher than the BGE, even with low surfactant…

This mouse study examined chronic smartphone electromagnetic radiation exposure and its effects on spatial working memory and hippocampal progenitor cell proliferation. The authors report no significant differences in Y-maze spontaneous alternation or BrdU-labeled progenitor proliferation after exposure, but…

This animal organ-preservation study compared 12-hour porcine heart preservation at -3°C using a device generating a variable magnetic field versus conventional 4°C preservation. The subzero variable-magnetic-field condition showed higher myocardial ATP, lower lactate, and less mitochondrial ultrastructural damage…