Modeling the double layer formation for electrical neurostimulation at the organic polymer - electrolyte interface

Sara Stoppacher, Christian Baumgartner, Susanne Scheruebel, Muammer Üçal, Karin Kornmueller, Rainer Schindl, Theresa Margarethe Rienmüller

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Electrical double-layer formation attracted significant interest more than a century ago and remains fundamentally involved in capacitive external stimulation of biological tissue. This work focuses on the study of the double layer characteristics at the interface formed between an electrolyte and polymer structures of organic photocapacitors, being of great interest for minimally invasive neurostimulation. Based on a combination of the Helmholtz and Gouy-Chapman methods, the Stern model is applied in COMSOL Multiphysics to investigate this electrical double layer formation. Simulations nicely highlight the importance of electrolyte concentration used and good cell adhesion.
Original languageEnglish
Title of host publicationProc. Annual Meeting of the Austrian Society of the Biomedical Engineering 2021
EditorsGernot Müller-Putz, Christian Baumgartner
Place of PublicationGraz
PublisherVerlag der Technischen Universität Graz
Number of pages4
ISBN (Electronic)978-3-85125-826-4
Publication statusPublished - 30 Sept 2021
EventAnnual Meeting of the Austrian Society of the Biomedical Engineering 2021: ÖGBMT 2021 - Graz University of Technology, Graz, Austria
Duration: 30 Sept 20211 Oct 2021


ConferenceAnnual Meeting of the Austrian Society of the Biomedical Engineering 2021
Abbreviated titleÖGBMT 2021
Internet address

Fields of Expertise

  • Human- & Biotechnology

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