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Thur, July 27

Speaker: John Ferguson, Department of Biomedical Engineering, University of Minnesota

Title: Improving neural recording electrodes at the nanoscale

Abstract:  Neural recording electrodes are widely used to study normal brain function (e.g., learning, memory, and motor control) and abnormal brain function (e.g., epilepsy, addiction, and depression) and to interface with the nervous system for neuroprosthetics. With a deep understanding of the electrode interface at the nanoscale and the use of novel nanofabrication processes, neural recording electrodes can be designed that surpass previous limits and enable new applications. In this presentation, I will discuss two projects. In the first project, we created an ultralow-impedance electrode coating by controlling the nanoscale texture of electrode surfaces. In the second project, we developed a novel nanowire electrode for long-term intracellular recordings. The techniques developed for these projects offer >significant improvements in the quality of neural recordings and open the door to new types of experiments, which can lead to a better understanding of the brain and can provide extremely detailed input signals for neuroprosthetic applications.