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Biomimetic Artificial Basilar Membranes for Next-Generation Cochlear Implants
- Biomimetic Artificial Basilar Membranes for Next-Generation Cochlear Implants
- Jang, Jong Moon; Jang, Jeong-Hun; Choi, Hong Soo
- DGIST Authors
- Choi, Hong Soo
- Issue Date
- Advanced Healthcare Materials, 6(21)
- Article Type
- Artificial basilar membranes; Cochlear implants; Frequency selectivity; Piezoelectricity; Triboelectricity
- Patients with sensorineural hearing loss can recover their hearing using a cochlear implant (CI). However, there is a need to develop next-generation CIs to overcome the limitations of conventional CIs caused by extracorporeal devices. Recently, artificial basilar membranes (ABMs) are actively studied for next-generation CIs. The ABM is an acoustic transducer that mimics the mechanical frequency selectivity of the BM and acoustic-to-electrical energy conversion of hair cells. This paper presents recent progress in biomimetic ABMs. First, the characteristics of frequency selectivity of the ABMs by the trapezoidal membrane and beam array are addressed. Second, to reflect the latest research of energy conversion technologies, ABMs using various piezoelectric materials and triboelectric-based ABMs are discussed. Third, in vivo evaluations of the ABMs in animal models are discussed according to the target position for implantation. Finally, future perspectives of ABM studies for the development of practical hearing devices are discussed. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
- Wiley-VCH Verlag
- Related Researcher
Bio-Micro Robotics Lab
Micro/Nano robot; Neural prostheses; MEMS; BMI; MEMS/NEMS; BioMEMS; MEMS 초음파 트랜스듀스; 인공와우
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- Department of Robotics EngineeringBio-Micro Robotics Lab1. Journal Articles
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