목적: For patients who suffer from sensorineural hearing loss by damaged or loss of hair cells in the cochlea, biomimetic artificial cochlea to remedy the disadvantages of existing implant systems have been studied. 방법:A new concept of Artificial Basilar Membrane (ABM) which is an inorganic-based piezoelectric acoustic nanosensor to mimic the functions of the human hair cells is introduced. ABM composed of piezoelectric membrane (polyvinylidine diuoride, PVDF), bottom common electrode, and 13 top electrodes. ABM successfully separated low frequency at the base and high frequency at the apex from incoming sound stimuli and consisted of 6 channels. 결과:With sound stimuli, the piezoelectric membrane could generate the electrical signals and the frequency specific signal from ABM were able to induce the auditory brainstem responses in a deafened guinea pig, indicating its capacity to mimic basilar membrane function. 결론:Although it is far less than minimal power needed to operate the whole system, we can find a possibility of self-powered artificial cochlea which might be one of the future option for the completely implantable device.