Induction of Calcium Influx in Cortical Neural Networks by Nanomagnetic Forces

ACS Nano
Andy TayDino Di Carlo

Abstract

Nanomagnetic force stimulation with ferromagnetic nanoparticles was found to trigger calcium influx in cortical neural networks without observable cytotoxicity. Stimulated neural networks showed an average of 20% increment in calcium fluorescence signals and a heightened frequency in calcium spiking. These effects were also confined spatially to areas with engineered high magnetic field gradients. Furthermore, blockage of N-type calcium channels inhibited the stimulatory effects of the nanomagnetic forces, suggesting the role of mechano-sensitive ion channels in mediating calcium influx.

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Citations

Apr 6, 2016·Frontiers in Neuroscience·Elisabetta ColomboFabio Benfenati
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