What is it about?
In existing microelectrode technologies, there is a trade-off between long-term stability obtained by insulating the microelectrode and the stimulation efficacy, which is highest for conductive (metallic) microelectrodes. In this work, a solution to this problem is presented by utilizing microelectrodes that are coated with an insulating ferroelectric layer.
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Why is it important?
Neuroprosthetic implants utilize microelectrodes, that can deliver an electrical stimulus to a target tissue, to treat various neurological diseases such as Parkinson's disease or blindness. For continuous functionality of neural implants for ten years or more, safety and long-term stability of microelectrodes are essential. Ferroelectric microelectrodes are a promising approach for efficient and long-term stable bioelectronic interfacing of cells or tissue and could improve the treatment success of neuroprostheses.
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This page is a summary of: Charge injection capacity of ferroelectric microelectrodes for bioelectronic applications, AIP Advances, June 2021, American Institute of Physics, DOI: 10.1063/5.0049202.
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