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WIRELESS STIMULATION OF NEURONS VIA NONRESONANT POWERING OF MAGNETOELECTRIC FILMS
Asli Aydin Lutzand 7 co-authors
Max Planck Institute for Intelligent Systems
FENS Forum 2026 (2026)
Barcelona, Spain
Board PS02-07PM-597
Presentation
Date TBA
Board: PS02-07PM-597
Event Information
Poster Board
PS02-07PM-597
Poster
View posterAbstract
Wireless neural interfaces are emerging as a minimally invasive treatment option for neurological disorders. Among these technologies, magnetically powered systems are particularly effective for targeting deep brain sites thanks to their excellent tissue penetration. However, their dependence on high-frequency electromagnetic fields (>100 kHz) limits the safe implementation of such systems due to tissue absorption. Additionally, these interfaces require an extra device volume to house the on-board electronics needed to regulate the output signal. In this study, we demonstrate the use of millimetre-scale magnetoelectric (ME) films as a direct neural interface for wireless neural stimulation, powered by static and low-frequency alternating magnetic fields. To achieve this, we characterized the voltage response of the ME films under varying magnetic field parameters and optimized the device geometry accordingly. The neural stimulation capability of the ME films was validated through calcium imaging experiments on primary hippocampal neurons in vitro. We found that ME films can provide tunable stimulation, primarily mediated by the involvement of voltage-gated sodium channels. Collectively, these findings demonstrate the potential of ME films as a minimally invasive, wireless neural stimulation technique.
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