Date of Award

Spring 1994

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)


Electrical and Computer Engineering


The purpose of this study was to investigate the various factors (current magnitude, electric field strength, current density, pH, corrosion, media discoloration, gas formation, and type of electrode used) contributing to the antibacterial effects of micro-amperage direct current (μADC) stimulation. Chapter I presents the literature review that describes the mechanisms by which electrical stimulation suppresses bacterial growth. Chapter 2 describes (I) the present status of the problem, (2) the relationships among current magnitude, conductivity, resistivity, electric field strength and current density, and (3) the problem statement. Chapter 3 introduces the experimental methods for evaluating and determining how the factors discussed in chapter 2 contribute to the antibacterial effects of μADC stimulation. Chapter 4 presents the results obtained from the experimental methods presented in chapter 3. Chapter 5 discusses, compares and contrasts the results obtained in chapter 4 with results from other studies. Chapter 6 summarizes and concludes the findings of this study.



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