Interfacing Neurons with Mechanically Compliant Electrodes
Speaker: Sigurd Wagner, Princeton University
Department: Electrical Engineering
Location: Engineering Quadrangle J201
Date/Time: Thursday, April 18, 2013, 7:30 p.m. - 9:00 p.m.
The human nervous system is a big electrical network made of nerve cells. These neurons transmit a standard signal, the action potential, which is a pulse of ~ 100 millivolt amplitude and a few milliseconds wide. The signals may be motor commands from the brain to muscles, or sensory signals from the periphery to the brain, or signals along interconnects with other neurons. Neurons have been studied, stimulated, or regenerated using electrodes that are positioned in the vicinity of nerve cells or penetrate the cell wall. Modern microtechnology has made important contributions to neuronal electrode technology. I will describe a branch of electrode technology that seeks to form reliable contacts to neurons with electrodes that also match the mechanical properties of the very soft neural tissue.
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