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Biomimetic Artificial Basilar Membranes for Next-Generation Cochlear Implants

Title
Biomimetic Artificial Basilar Membranes for Next-Generation Cochlear Implants
Authors
Jang, Jong-MoonJang, Jeong-HunChoi, Hong-Soo
DGIST Authors
Jang, Jong-Moon; Choi, Hong-Soo
Issue Date
2017
Citation
Advanced Healthcare Materials
Type
Article
Article Type
Article in Press
Keywords
Artificial basilar membranesCochlear implantsFrequency selectivityPiezoelectricityTriboelectricity
ISSN
2192-2640
Abstract
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.
URI
http://hdl.handle.net/20.500.11750/4567
DOI
10.1002/adhm.201700674
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Choi, Hong Soo Bio-Micro Robotics Lab
  • Research Interests Micro/Nano robot; Neural prostheses; MEMS; BMI; MEMS/NEMS; BioMEMS; MEMS 초음파 트랜스듀스; 인공와우
Files:
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Collection:
Robotics EngineeringETC1. Journal Articles


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