Electrochemical Impedance Analysis of Gold-Polyurethane Nanocomposite

Neural prosthetic devices are used to record and transmit electrical signals to modulate neural tissue functionality. Electrodes in the devices are currently made using traditional electronic materials. These materials are generally not biocompatible and those that are, can be stiff, triggering an immune response and affecting the functionality of the electrode with time. Nanocomposites with conductive material integrated into a soft polymer is a potential alternative to current electrodes. This study measures the electrochemical properties of a composite electrode made of gold and polyurethane using electrochemical impedance spectroscopy.