Engineering biomimetic hair bundle sensors for underwater sensing applications

Ajay Giri Prakash Kottapalli*, Mohsen Asadnia, K. Domenica Karavitaki, Majid Ebrahimi Warkiani, Jianmin Miao, David P. Corey, Michael Triantafyllou

*Corresponding author for this work

    Research output: Contribution to journalConference paperpeer-review

    7 Citations (Scopus)


    We present the fabrication of an artificial MEMS hair bundle sensor designed to approximate the structural and functional principles of the flow-sensing bundles found in fish neuromast hair cells. The sensor consists of micro-pillars of graded height connected with piezoelectric nanofiber "tip-links" and encapsulated by a hydrogel cupula-like structure. Fluid drag force actuates the hydrogel cupula and deflects the micro-pillar bundle, stretching the nanofibers and generating electric charges. These biomimetic sensors achieve an ultrahigh sensitivity of 0.286 mV/(mm/s) and an extremely low threshold detection limit of 8.24 μm/s. A complete version of this paper has been published [1].

    Original languageEnglish
    Article number160003
    Pages (from-to)1-6
    Number of pages6
    JournalAIP Conference Proceedings
    Issue number1
    Publication statusPublished - 31 May 2018
    EventMechanics of Hearing Workshop (13th : 2017) - St. Catharines, Canada
    Duration: 19 Jun 201724 Jun 2017

    Bibliographical note

    Monograph title: "To the Ear and Back Again - Advances in Auditory Biophysics: Proceedings of the 13th Mechanics of Hearing Workshop". Editor: Christopher Bergevin and Sunil Puria, ISBN: 9780735416703.


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