Image-guided Placement of Magnetic Neuroparticles as a Potential High-Resolution Brain-Machine Interface

  • Weinberg I
  • Mair L
  • Jafari S
  • et al.
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Abstract

We are developing methods of noninvasively delivering magnetic neuroparticles™ via intranasal administration followed by image-guided magnetic propulsion to selected locations in the brain. Once placed, the particles can activate neurons via vibrational motion or magnetoelectric stimulation. Similar particles might be used to read out neuronal electrical pulses via spintronic or liquid-crystal magnetic interactions, for fast bidirectional brain-machine interface. We have shown that particles containing liquid crystals can be read out with magnetic resonance imaging (MRI) using embedded magnetic nanoparticles and that the signal is visible even for voltages comparable to physiological characteristics. Such particles can be moved within the brain (e.g., across midline) without causing changes to neurological firing.

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Weinberg, I. N., Mair, L. O., Jafari, S., Algarin, J., Baviera, J. M. B., Baker-McKee, J., … Fricke, S. (2018). Image-guided Placement of Magnetic Neuroparticles as a Potential High-Resolution Brain-Machine Interface. In Evolving BCI Therapy - Engaging Brain State Dynamics. InTech. https://doi.org/10.5772/intechopen.75522

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