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Proceedings Paper

Development of a PVDF based artificial basilar membrane
Author(s): Mohammadsadegh Saadatzi; Mohammad Nasser Saadatzi; Vahid Tavaf; Sourav Banerjee
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Paper Abstract

In spite of many studies concerning the potential of auditory nerve actions, the timing of neural excitation in relation to basilar membrane motion is still not well understood. In this study, therefore, a Piezoelectric Artificial Basilar Membrane (PABM) is fabricated using Denton Explorer evaporator. The proposed dynamical system is made of polyvinylidene fluoride membrane on which 40 chromium electrodes were deposited with thickness close to 104 Å. The PABM sensor was tested with variable engineering parameters that contribute to its frequency selection capabilities. To characterize the frequency selectivity of the PABM, mechanical displacements were measured using a very precise high-resolution data acquisition board. When electrical and acoustic stimuli were applied, the measured resonance frequencies were in the ranges of 600to2000. These results demonstrate that the mechanical frequency selectivity of this PABM is close to the human communication frequency range (300–3000 Hz), which is a vital feature of potential auditory prostheses.

Paper Details

Date Published: 27 March 2018
PDF: 6 pages
Proc. SPIE 10593, Bioinspiration, Biomimetics, and Bioreplication VIII, 1059318 (27 March 2018); doi: 10.1117/12.2296632
Show Author Affiliations
Mohammadsadegh Saadatzi, Univ. of South Carolina (United States)
Mohammad Nasser Saadatzi, Univ. of Louisville (United States)
Vahid Tavaf, Univ. of South Carolina (United States)
Sourav Banerjee, Univ. of South Carolina (United States)

Published in SPIE Proceedings Vol. 10593:
Bioinspiration, Biomimetics, and Bioreplication VIII
Akhlesh Lakhtakia, Editor(s)

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