Seminar Speaker: Michael Bodunrin, University of the Witwatersrand, Johannesburg, SA

Affordable Bio-Implant Materials

Abstract

There is a global rise in the demand for metallic bio-implant materials. This can be attributed to the increasing geriatric population, who are mostly susceptible to bone-related diseases. An increase in other medical conditions, such as diabetes in older adults, has also been reported to promote susceptibility to bone failures. While medical treatment for bone injuries is readily available, the cost of treatment, particularly the bio-implants, constitutes a significant fraction and is often prohibitively expensive.

To ensure access to treatment, one of the ways being explored is the development of affordable implant materials. Two broad ideas were considered for achieving this goal. The first one involves the reduction in the cost of titanium-based implants. This aspect highlights one of the several approaches explored in South Africa to develop cheaper titanium alloys. It provides an overview of the progress made in terms of alloying element considerations, thermomechanical processing, and corrosion performance. The challenges limiting the furtherance of this approach are then highlighted.
The second aspect focuses on the possibility of repurposing chromium-containing lightweight steels in place of titanium or highly dense 316L stainless steel for bio-implant applications. The preliminary results obtained from this new approach are presented. Potential areas for collaboration are highlighted, with justifiable implications for impact in developing countries as well as in the field of materials science and engineering.

Biography

I gain fulfillment in sharing my knowledge with others and enabling others to construct new meanings at all times. Knowing that there is always something new to learn motivates me to strengthen my skills and to contribute meaningfully to my field. My training as a physical metallurgist has yielded vital contributions to the development of light materials particularly titanium alloys and aluminum-based composites. I derive strength from executing collaborative research and actively engaging the public through my science communication skills. I strive to use my experience and knowledge to solve existing and imminent challenges that face our society