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Filters: tag: Scanning Electron Microscopy Clear

Comparative evaluation of radiofrequency-treated and naturally aged rice (Var. Jhelum): Physicochemical, rheological, thermal, microstructural and glycemic characteristics.

Research RF Safe Research Library Jan 1, 2026

This food science study compared freshly harvested, naturally aged, and RF-treated rice/paddy (Jhelum cultivar) to assess whether RF heating can simulate natural ageing. RF treatment reportedly induced ageing-like microstructural and functional changes similar to naturally aged rice. Reported outcomes included…

The effect of the electromagnetic field on the physicochemical properties of isolated corn starch obtained of plants from irradiate seeds.

Research RF Safe Research Library Jan 1, 2023

This study examined whether exposing maize seeds to electromagnetic fields (23, 70, 118 μT) for 15 days alters physicochemical properties of starch isolated from the resulting grains. SEM and X-ray diffraction results suggest starch morphology and orthorhombic crystalline structure were largely unchanged, though…

The beneficial effect of ginsenosides extracted by pulsed electric field against hydrogen peroxide-induced oxidative stress in HEK-293 cells.

Research RF Safe Research Library Jan 1, 2017

This in vitro study compared ginsenosides extracted using pulsed electric field (PEF) versus solvent cold soak extraction (SCSE). The abstract reports that PEF extracts had higher antioxidant capacity and provided greater protection against hydrogen peroxide-induced oxidative stress in HEK-293 cells, including…

The effect of a high frequency electromagnetic field in the microwave range on red blood cells.

Research RF Safe Research Library Jan 1, 2017

An in vitro study examined red blood cells exposed to an 18 GHz electromagnetic field and assessed uptake of nanospheres. The authors report that EMF exposure enabled nanosphere uptake into RBCs, with different translocation behavior for 23.5 nm versus 46.3 nm particles. Uptake was reported to increase with higher…

MICROWAVE RADIATION INDUCED SYNTHESIS OF HYDROXYPROPYL METHYLCELLULOSE-GRAFT- (POLYVINYLALCOHAL-CO-ACRYLIC ACID) POLYMERIC NETWORK AND ITS IN VITRO EVALUATION.

Research RF Safe Research Library Jan 1, 2017

This in vitro materials study compares microwave irradiation versus conventional water-bath heating for synthesizing HPMC-graft-(PVA-co-acrylic acid) hydrogels loaded with captopril. The authors report that microwave-synthesized hydrogels had more uniformly porous structures and higher swelling ratios, with…

Nanocrystalline graphite films nucleation by the radio frequency bias pretreatment.

Research RF Safe Research Library Jan 1, 2011

This paper describes an engineering method for nucleating nanocrystalline carbon films on monocrystalline silicon using a combination of microwave and radio frequency plasma-assisted chemical vapor deposition. The approach is demonstrated via deposition of nanocrystalline diamond after a seeding step and growth of…

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…

Electric field induced structuring in clay-oil suspensions: new insights from WAXS, SEM, leak current, dielectric permittivity, and rheometry.

Research RF Safe Research Library Jan 1, 2010

This laboratory/engineering study examined electric-field-induced structuring in clay-oil suspensions using WAXS, SEM, rheometry, and electrical measurements. Particle orientation was quantified via an orientational order parameter derived from diffraction peak azimuthal changes, and chain versus column formation was…

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