Investigating mechanical deformation’s role in cochlear implant durability

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Tatiana Blank
  • André Marcel Ahrens
  • Christian Klose
  • Demircan Canadinç
  • Thomas Lenarz
  • Hans Jürgen Maier

Externe Organisationen

  • Koc University
  • Medizinische Hochschule Hannover (MHH)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummere0306613
FachzeitschriftPLOS ONE
Jahrgang19
Ausgabenummer7
PublikationsstatusVeröffentlicht - 9 Juli 2024

Abstract

Platinum and platinum-based alloys are used as the electrode material in cochlear implants because of the biocompatibility and the favorable electrochemical properties. Still, these implants can fail over time. The present study was conducted to shed light on the effects of microstructure on the electrochemical degradation of platinum. After three days of stimulation with a square wave signal, corrosive attack appeared on the platinum surface. The influence of mechanical deformation, in particular rolling, on the corrosion resistance of platinum was also prominent. The cyclic voltammetry showed a clear dependence on the electrolyte used, which was interpreted as an influence of the buffer in the artificial perilymph used. In addition, the polarization curves showed a shift with grain size that was not expected. This could be attributed to the defects present on the surface. These findings are crucial for the manufacture of cochlear implants to ensure their long-term functionality.

ASJC Scopus Sachgebiete

Zitieren

Investigating mechanical deformation’s role in cochlear implant durability. / Blank, Tatiana; Ahrens, André Marcel; Klose, Christian et al.
in: PLOS ONE, Jahrgang 19, Nr. 7, e0306613, 09.07.2024.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Blank, T., Ahrens, A. M., Klose, C., Canadinç, D., Lenarz, T., & Maier, H. J. (2024). Investigating mechanical deformation’s role in cochlear implant durability. PLOS ONE, 19(7), Artikel e0306613. https://doi.org/10.1371/journal.pone.0306613
Blank T, Ahrens AM, Klose C, Canadinç D, Lenarz T, Maier HJ. Investigating mechanical deformation’s role in cochlear implant durability. PLOS ONE. 2024 Jul 9;19(7):e0306613. doi: 10.1371/journal.pone.0306613
Blank, Tatiana ; Ahrens, André Marcel ; Klose, Christian et al. / Investigating mechanical deformation’s role in cochlear implant durability. in: PLOS ONE. 2024 ; Jahrgang 19, Nr. 7.
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AU - Klose, Christian

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AU - Lenarz, Thomas

AU - Maier, Hans Jürgen

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