Magnetofection of miR-21 promoted by electromagnetic field and iron oxide nanoparticles via the p38 MAPK pathway contributes to osteogenesis and angiogenesis for intervertebral fusion.
Research
RF Safe Research Library
Jan 1, 2023
This study describes a magnetofection system using electromagnetic field (EMF) co-stimulation with iron oxide nanoparticles (IONPs) to deliver miR-21. The authors report increased transfection efficiency and promotion of osteogenesis and angiogenesis in BMSCs and HUVECs, with downstream application to…
Sinusoidal electromagnetic fields accelerate bone regeneration by boosting the multifunctionality of bone marrow mesenchymal stem cells.
Research
RF Safe Research Library
Jan 1, 2021
This in vitro and rat study evaluated sinusoidal electromagnetic field (EMF) treatment of bone marrow mesenchymal stem cells (BMSCs) seeded on 3D-printed scaffolds for repairing critical-sized calvarial defects. The authors report that EMF-treated cell scaffolds accelerated bone defect repair in rats.…
Low-frequency electromagnetic fields combined with tissue engineering techniques accelerate intervertebral fusion.
Research
RF Safe Research Library
Jan 1, 2021
This in vitro and rat-model study evaluated sinusoidal low-frequency EMF combined with a PCL/nHA scaffold seeded with BMSCs for intervertebral fusion. The authors report enhanced osteogenic differentiation of BMSCs and pro-osteogenic effects of conditioned medium from EMF-treated BMSCs, with suggested involvement of…
Fabrication and physicochemical characterization of a novel magnetic nanocomposite scaffold: Electromagnetic field effect on biological properties.
Research
RF Safe Research Library
Jan 1, 2020
This in vitro study fabricated PCL nanofibrous scaffolds containing cobalt-zinc ferrite nanoparticles and evaluated physicochemical/mechanical properties and cell-related outcomes. The abstract reports improved hydrophilicity, biodegradation, and stress at break with CZF-NP incorporation, and improved L929 cell…
Low-frequency electromagnetic fields promote hair follicles regeneration by injection a mixture of epidermal stem cells and dermal papilla cells.
Research
RF Safe Research Library
Jan 1, 2020
This animal study evaluated whether low-frequency EMF exposure affects bioengineered hair follicle generation in nude mice injected with a mixture of epidermal stem cells and dermal papilla cells. Histology (H&E) at 7 or 14 days suggested more hair follicle eruption and higher density of hair follicle-like structures…
The combinatory effect of sinusoidal electromagnetic field and VEGF promotes osteogenesis and angiogenesis of mesenchymal stem cell-laden PCL/HA implants in a rat subcritical cranial defect.
Research
RF Safe Research Library
Jan 1, 2019
This animal and in vitro study evaluated sinusoidal electromagnetic field (SEMF) exposure combined with VEGF in rat mesenchymal stem cells and in a rat cranial defect model using rBMSC-laden PCL/HA scaffolds. The authors report increased osteogenic and endothelial marker expression with SEMF and VEGF, with a slight…
Biodegradable, pH-sensitive chitosan beads obtained under microwave radiation for advanced cell culture.
Research
RF Safe Research Library
Jan 1, 2018
This in vitro study describes microwave-assisted, green-chemistry synthesis of pH-sensitive chitosan beads crosslinked with a glutamic acid/1,5-pentanodiol mixture and optionally modified with Tilia platyphyllos extract. The beads were characterized (FT-IR, SEM), tested for swelling, pH sensitivity, antioxidant…
Combined effects of electromagnetic field and low-level laser increase proliferation and alter the morphology of human adipose tissue-derived mesenchymal stem cells.
Research
RF Safe Research Library
Jan 1, 2017
This in vitro study tested 50 Hz, 3 mT electromagnetic field (EMF) exposure and 808 nm low-level laser (LLL), alone and combined, on human adipose tissue-derived mesenchymal stem cells from six donors. The authors report increased cell numbers after 7 days with EMF, greater increases with LLL, and the largest…
Efficacy of 50 Hz electromagnetic fields on human epidermal stem cell transplantation seeded in collagen sponge scaffolds for wound healing in a murine model.
Research
RF Safe Research Library
Jan 1, 2017
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…
Dielectric aggregation kinetics of cells in a uniform AC electric field.
Research
RF Safe Research Library
Jan 1, 2014
This study develops and tests a theoretical model of how HeLa cells aggregate when exposed to a uniform AC electric field. Model-derived aggregation times and predicted string-length growth rates matched numerical simulation, and experiments observed substantial clustering in the chamber. The work is framed as…