P1.1 - Manufacture of electrodes entirely made of modified PDMS
- AMA Conferences 2017
2017-05-30 - 2017-06-01
- Proceedings Sensor 2017
- P1 - Materials and Technology
- A. Brensing, R. Ruff, K. Hoffmann - Fraunhofer Institute for Biomedical Engineering, Sulzbach (Germany)
- 555 - 560
Materials with different mechanical characteristics are used for common flexible electrodes. These differences limit their long term usability as interface to biological tissue. In this paper a manufacturing process for structural compatible PDMS electrodes is described. Issues like the adhesion between the components, the Young's moduli of the materials as well as the contacting process were addressed. Direct cell contact tests provided the evidence of cell compatibility. By recording electromyograms (EMG) and the evaluation of the charge injection capacity (CIC) the functionality of the electrodes could be shown. The used material for the electrode contact was investigated regarding its phase boundary. For the description of impedance spectra of the polymeric electrode an equivalent circuit is described.