Abstract

Cochlear implantation (CI) offers a dependable treatment for sensorineural hearing loss, with precision electroacoustic stimulation parameters showing great potential in improving auditory outcomes in CI patients. Here, we report the attachment of MXene into CI systems which effectively mimic the neural electrode interface due to MXene's excellent electrical conductivity and biocompatibility. Low-frequency short-term biphasic electrical pulses emitted by the MXenes-based CI promoted the outgrowth of spiral ganglion neuron (SGN) neurites and growth cones, substantially boosting the calcium activity in SGNs. This study lays a theoretical foundation for the precision medicine approaches in CI patient care, and informs the selection of materials for cochlear implant electrode materials in the future.

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