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Polyimide based shaft electrodes were coated with a bioresorbable layer to stiffen them for intracortical insertion and to reduce the mechanical mismatch between the target tissue and the implanted device after degradation of the coating. Molten saccharose was used as coating material. In a proof-of-concept study, the electrodes were implanted into the cortex of Wistar rats and the insertion forces...
Within this study, polyimide based shaft electrodes were fabricated and dip-coated in molten saccharose to stiffen them for insertion into the brain tissue. These electrodes were then implanted successfully into the cortex of whistar rats and the insertion force during implantation was recorded. Electrochemical impedance spectroscopy was performed immediately after implantation and in regular time...
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