Piezoelectric Property of Electrospun PVDF Nanofibers as Linking Tips of Artificial-Hair-Cell Structures in Cochlea

Sabouni Tabari, Rana, Chen, Yu, Thummavichai, Kunyapat, Zhang, Yan, Saadi, Zakaria, Neves, Ana I. S., Xia, Yongde and Zhu, Yanqiu (2022) Piezoelectric Property of Electrospun PVDF Nanofibers as Linking Tips of Artificial-Hair-Cell Structures in Cochlea. Nanomaterials, 12 (9). p. 1466. ISSN 2079-4991

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Official URL: https://doi.org/10.3390/nano12091466


The death of hair cells and damage of natural tip links is one of the main causes of hearing-loss disability, and the development of an advanced artificial hearing aid holds the key to assisting those suffering from hearing loss. This study demonstrates the potential of using electrospun polyvinylidene fluoride (PVDF) fibers to serve as the artificial tip links, for long-term hearing-aid-device development based on their piezoelectric properties. We have shown that the electrospun PVDF-fiber web, consisting of fibers ranging from 30–220 nm in diameter with high β-phase content, possesses the high piezoresponse of 170 mV. Analyses based on combined characterization methods including SEM, TEM, XRD, FTIR, Raman, DSC, XPS, PFM and piezoelectricity have confirmed that an optimized value of 15 wt.% PVDF could act as an effective candidate for a tip-link connector in a vibration-frequency prototype. Based on this easily reproducible electrospinning technique and the multifunctionalities of the resulting PVDF fibers, this fundamental study may shed light on the bio-inspired design of artificial, self-powered, high performance, hair-cell-like sensors in cochlea to tackle the hearing loss issue.

Item Type: Article
Additional Information: Funding Information: Funding: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by EPSRC grants (Grant number: EP/N034627/1, EP/S019855/1) for providing the Scholarship support for RST.
Uncontrolled Keywords: electrospun PVDF fiber, hearing loss, piezoelectric properties, tip links in cochlea
Subjects: F100 Chemistry
F200 Materials Science
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 10 Jan 2023 11:15
Last Modified: 10 Jan 2023 11:15
URI: https://nrl.northumbria.ac.uk/id/eprint/51114

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