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Electrodes and Interfaces


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Our research focuses on advancing neural interfaces based on polyimide and silicone rubber in translational research. Thereby we are pursuing three approaches:

1. Improving the reliability and long-term stability of the interfaces with in vitro and in vivo testing methods, followed by in depth analysis using different approaches like FIB-SEM cross sectional imaging.

2. Implementing novel techniques to enhance assembly technologies.

3. Consideration of normative and regulatory aspects.


  •  FIB-SEM-analysis
  • Longevity tests using electrical stimulation, periodical mechanical deformation and (accelerated) aging
  • MEMS fabrication
  • Laser fabrication

Current Projects

  • Fabrication of long-term applicable polyimide based thin-film shaft electrodes (FlexBRM)
  • Moore4Medical
  • InoPro (interface section)
  • Preparation of material-tissue interfaces for further investigations
Dr.-Ing. Paul Čvančara
Research Group Leader
E-Mail: paul.cvancara@imtek.uni-freiburg.de
Telephone: +49 (0)761 203 67635
Laboratory for Biomedical Microtechnology
Department of Microsystems Engineering
University of Freiburg - IMTEK
IMBIT - NeuroProbes
Georges-Köhler-Allee 201
Room: 01.005
79110 Freiburg
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