Electrical deep brain stimulation (DBS) is a top priority
for pharmacoresistant
epilepsy treatment, while less-invasive wireless DBS is an urgent
priority but challenging. Herein, we developed a conceptual wireless
DBS platform to realize local electric stimulation via 1D-structured
magnetoelectric Fe3O4@BaTiO3 nanochains
(FBC). The FBC was facilely synthesized via magnetic-assisted interface
coassembly, possessing a higher electrical output by inducing larger
local strain from the anisotropic structure and strain coherence.
Subsequently, wireless magnetoelectric neuromodulation in
vitro was synergistically achieved by voltage-gated ion channels
and to a lesser extent, the mechanosensitive ion channels. Furthermore,
FBC less-invasively injected into the anterior nucleus of the thalamus
(ANT) obviously inhibited acute and continuous seizures under magnetic
loading, exhibiting excellent therapeutic effects in suppressing both
high voltage electroencephalogram signals propagation and behavioral
seizure stage and neuroprotection of the hippocampus mediated via
the Papez circuit similar to conventional wired-in DBS. This work
establishes an advanced antiepilepsy strategy and provides a perspective
for other neurological disorder treatment.