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Apr 22, 2019
Doctor Alejandra Gonzalez is a postdoctoral researcher at the University of Texas-Dallas that works in the fields of neurotechnology. She currently focuses on how she can develop graphing fibers that have better electrochemical properties for implantable devices.
Top Three Takeaways:
[00:00] Ladan introduces the episode from a recent neural engineering conference he attended in March of 2019.
[1:15] Alejandra Gonzalez introduces herself from University of Texas-Dallas as a postdoctoral fellow. The poster covers the fabrication of high performance of graphing electrodes for the use of interfaces.
[1:45] Her team is creating graphing fibers without good electrochemical properties and good mechanical properties to use as electrical interfaces in peripheral nerves.
[2:10] Conventional electrodes have charge capacities that range from 0.05-0.2 mC per centimeter squared, and conventional graphing fibers have one of 300 mC per centimeter squared.
[2:35] Metallic coatings have been added to the fibers to improve their charge capacities to 940 mC per centimeter squared.
[3:00] The design of Gonzalez’s fibers reduce impedance and improve electrical flow.
[3:25] The fibers can be in thinner than 20 micrometers in diameter.
[4:00] Gonzalez pictures this technology being used as cuffs around peripheral nerves.
[4:30] She mentions how it sometimes is difficult to combine the fields of neurology and engineering.