Aaron Brandner, “Biomedical Medical Applications of Novel Magnetostrictive Composite”
Mentor: Priyatha Premnath, Biomedical Engineering
Poster #29

There is an increasing demand for biomaterials with characteristics that can be altered in vivo to enhance tissue properties. One such branch of materials is smart biomaterials that can respond to cues in vivo and alter their properties. The primary aim for smart biomaterials is to provide mechanical support, mimic, guide, or induce a tissue or natural process, and/or act as a vehicle for drug delivery [1], [2]. Magnetostrictive materials are a group of smart materials that respond to a magnetic field by altering their domain [1], [3], [4]. An example of a magnetostrictive material is Terfenol-D, an iron alloy containing terbium and dysprosium [1],[5]. A magnetic field will induce the Terfenol-D to change orientation, causing strains to be generated [2], [3], [4], [6]. In this context, a novel composite was developed combining Polymethyl methacrylate (PMMA) commonly known as Bone Cement and a particulate form of Terfenol-D (TD). This study delves into the micro-morphology, mechanical properties, and cytotoxicity characteristics of this composite material. The combination of PMMA and Terfenol-D opens avenues for innovative materials that could play a significant role in advancing technology and addressing the evolving needs of the health industry.