alexa Decreased Staphylococcus aureus biofilm growth on anodized nanotubular titanium and the effect of electrical stimulation.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Ercan B, Kummer KM, Tarquinio KM, Webster TJ

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Abstract Infection is a major problem in orthopedics leading to implant failure. It is a challenging task to treat orthopedic implant infection, which may lead to implant replacement and, in severe cases, may result in amputation and mortality. Infection poses an even further risk as bacteria are beginning to develop resistance against commonly used antibiotics. Therefore, in this research a combination of various approaches was used to fight implant infection without resorting to the use of antibiotics. Specifically, conventional titanium was altered through a process of anodization and electrical stimulation to reduce Staphylococcus aureus growth. It was shown that when a 15-30 V electrical stimulation was coupled with anodized nanotubular titanium a significant decrease in S. aureus biofilm formation was observed, compared with non-anodized and non-electrically stimulated titanium after 2 days culture. The decrease in biofilm formation observed here was explained by the presence of fluorine on the surfaces of anodized nanotubular titanium. Thus, coupling the positive influences of anodization and electrical stimulation could be a promising way to fight titanium-based orthopedic device-related infections. Copyright © 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. This article was published in Acta Biomater and referenced in Journal of Nanomedicine & Nanotechnology

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