CURE: Engineering Interdisciplinary Undergraduate Research

Demonstrating the Capabilities of TEENI Electrodes in a Peripheral Nerve

CURE: Engineering Interdisciplinary Undergraduate Research

Student Presenters

Krista Marrocco, Emery Perrin, Marianne Stephenson

Faculty Mentor

Dr. Jack Judy, Dr. Erin Patrick

College

Herbert Wertheim College of Engineering

Abstract

The electrical excitation of nervous tissue (i.e., neurons and axons) is the basis of neural communication in biology. In the peripheral nervous system there are two types of nerve fibers in the human body. Afferent nerve-fibers control sensory feedback, and efferent nerve-fibers control motor movements. A new class of electrodes called Tissue-Engineered Electronic Nerve Interfaces (TEENI) aim to both record efferent nerve-fibers and stimulate afferent nerve-fibers with high levels of precision to advance the design of state-of-the-art prosthetics used by amputees. The TEENI consists of a multi-array of thread electrodes. We use a finite element modeling program, COMSOL, to assess the geometrical design of the TEENI by simulation of electrical characteristics of the electrodes in a model human peripheral nerve.

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