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Scanning Electron Microscope (SEM) image of the conducting polymer poly(ethylenedioxthiophene) (PEDOT) / poly(styrene sulfonate) (PSS) electrochemically coated onto a platinum-iridium cochlear ball electrode. The close-up view shows the high surface area nanofibrillar texture that leads to a significant reduction in the impedance and increase in charge capacity. These materials are being investigated both in-vitro and in-vivo for their ability to improve the performance of biomedical devices intended for long-term implantations in living tissue. Image taken by Jeffrey L. Hendricks at the North Campus Electron Microscope Laboratory (EMAL).
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