Recent Progress in <i>Artificial Organs</i>

Hearing loss can affect individuals of all ages, impacting social interactions, education, and overall quality of life.While current treatments like hearing aids and cochlear implants aim to alleviate these effects, their basic design often hinders accurate determination of sound sources.Chang et al. from University College London recently developed a novel intelligent hearing system inspired by the human auditory process, utilizing asymmetric piezoelectric nanofibers aligned with neural networks to replicate natural hearing functionalities.These piezoelectric nanofibers, featuring spirally varying lengths and orientations, effectively convert acoustic signals into mechanoelectrical signals that mimic the complex dynamics of the cochlea.Digital, artificial intelligence-assisted neural networks then encode these signals, allowing for precise recognition of sound direction.This innovative hearing system surpasses human directional hearing capabilities, accurately identifying sound directions in both horizontal and vertical planes.This progress represents a significant advancement in next-generation artificial hearing, merging sensory transduction and perception through a design inspired by nature.It holds promise for applications in hearing aids, wearable technology, and implants, ultimately enhancing auditory experiences for people with hearing loss.-