Popis: |
The structural and electrical stability of Parylene C - platinum - Parylene C sandwich structures is severely reduced by the sterilization methods autoclav- ing, gamma irradiation and ethylene oxide. The re- sistance of platinum interdigitated electrodes embedded in Parylene C stored in saline solution at 37°C after steri- lization declined within several days, and optical analysis revealed delamination of Parylene and corrugation of platinum thin films. Neither mechanical properties nor the FT-IR spectra of Parylene C were changed. A control group of not sterilized samples was stable for more than 300 days under same conditions. |