Cited by 202Neuroscience and Neural EngineeringWireless Power Transfer SystemsMultiferroics and related materials

Magnetoelectric materials for miniature, wireless neural stimulation at therapeutic frequencies

Open access
Singer, Amanda, Dutta, Shayok, Lewis, Eric, Chen, Ziying, Chen, Joshua C., Verma, Nishant, Avants, Benjamin, Feldman, Ariel K. +4 more·2020·Neuron

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Abstract

A major challenge for miniature bioelectronics is wireless power delivery deep inside the body. Electromagnetic or ultrasound waves suffer from absorption and impedance mismatches at biological interfaces. On the other hand, magnetic fields do not suffer these losses, which has led to magnetically powered bioelectronic implants based on induction or magnetothermal effects. However, these approaches have yet to produce a miniature stimulator that operates at clinically relevant high frequencies. Here, we show that an alternative wireless power method based on magnetoelectric (ME) materials enables miniature magnetically powered neural stimulators that operate up to clinically relevant frequencies in excess of 100 Hz. We demonstrate that wireless ME stimulators provide therapeutic deep brain stimulation in a freely moving rodent model for Parkinson's disease and that these devices can be miniaturized to millimeter-scale and fully implanted. These results suggest that ME materials are an excellent candidate to enable miniature bioelectronics for clinical and research applications.

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Crossref · 10.1016/j.neuron.2020.05.019

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  • In ME energy transfer, a magnetic field causes the magnetostrictive material to deform, and the piezoelectric component converts this mechanical deformation into an electrical voltage.

    “Upon reaching the transducer, the magnetic field causes the magnetostrictive material to undergo a deformation. This mechanical deformation is then converted into an electrical voltage by the piezoelectric component, effectively transferring energy from the external source to the implant (Dong et al., 2003; Zhai et al., 2006; Singer et al., 2020).”

    From Comparative analysis of energy transfer mechanisms for neural implants (2024) · cites this paper as Singer et al., 2020

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Authors
Singer, A., Dutta, S., Lewis, E., Chen, Z., Chen, J. C., Verma, N., Avants, B., Feldman, A. K., O’Malley, J., Beierlein, M., Kemere, C., & Robinson, J. T.
Affiliations
  • Rice University (US)
  • The University of Texas Health Science Center at Houston (US)
  • Baylor College of Medicine (US)
Corresponding author
Robinson, Jacob T.
Venue
Neuron
Publisher
Elsevier BV
Published
2020-08
Volume
107
Issue
4
Pages
631-643.e5
ISSN
0896-6273 (ISSN-L)
OpenAlex
W3033085681
Cited by
202
References
59
Citations by year
2026: 31 · 2025: 29 · 2024: 39 · 2023: 20 · 2022: 33 · 2021: 35 · 2020: 11 · 2019: 3 · 2012: 1
FWCI
11.35
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation (CBET-1351692, GRFP 1842494, IGERT 1250104)
  • National Institutes of Health (1U18EB029353-01, R21EY028397A)
  • Rice University
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
  • Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Multiferroics and related materials
Keywords
magnetoelectric materials, wireless neural stimulation, deep brain stimulation, Parkinson's disease, high-frequency stimulation
MeSH terms
Animals, Equipment Design, Humans, Deep Brain Stimulation, Implantable Neurostimulators, Wireless Technology

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